#!/usr/bin/emacs --script
-(fset 'fix-foreach
- [?\C-u ?\C-s ?_ ?f ?o ?r ?e ?a ?c ?h ? ?* ?\( ?\C-a ?\C-o tab ?/ ?* ? ?* ?I ?N ?D ?E ?N ?T ?- ?O ?F ?F ?* ? ?* ?/ ?\C-u ?\C-s ?\C-s ?\C-b escape ?\C-f ?\C-e ?\C-j ?/ ?* ? ?* ?I ?N ?D ?E ?N ?T ?- ?O ?N ?* ? ?* ?/])
-(fset 'fix-cli-command
- [?\C-s ?C ?L ?I ?_ ?C ?O ?M ?M ?A ?N ?D ?\C-a ?\C-o ?/ ?* ? ?* ?I ?N ?D ?E ?N ?T ?- ?O ?F ?F ?* ? ?* ?/ ?\C-s ?\} ?\C-e ?\C-j ?/ ?* ? ?I ?N ?D ?E ?N backspace backspace backspace backspace backspace ?* ?I ?N ?D ?E ?N ?T ?- ?O ?N ?* ? ?* ?/])
-(fset 'fix-node
- [?\C-s ?R ?E ?G ?I ?S ?T ?E ?R ?_ ?N ?O ?D ?E ?\C-a ?\C-o ?/ ?* ? ?* ?I ?N ?D ?E ?N ?T ?- ?O ?F ?F ?* ? ?* ?/ ?\C-a ?\C-n ?\C-s ?\{ ?\C-b escape ?\C-f ?\C-e ?\C-j ?/ ?* ?\S- ?* ?I ?N ?D ?E ?N ?T ?- ?O ?N ?* ? ?* ?/])
-
-(fset 'fix-elog-type
- [?\C-s ?E ?L ?O ?G ?_ ?T ?Y ?P ?E ?_ ?D ?E ?C ?L ?A ?R ?E ?\C-a ?\C-o tab ?/ ?* ? ?* ?I ?N ?D ?E ?N ?T ?- ?O ?F ?F ?* ? ?* ?/ ?\C-a ?\C-n ?\C-n tab escape ?\C-f ?\C-e ?\C-j tab ?/ ?* ? ?* ?I ?N ?D ?E ?N ?T ?- ?O ?N ?* ? ?* ?/ ?\C-a ?\C-n])
-
;; insert style boilerplate
(defun insert-style-boilerplate () (interactive)
(save-excursion (goto-char (point-max))
* End:
*/")))
+;;
+(defun fix-foreach () (interactive)
+ (save-excursion (goto-char (point-min))
+ (while (search-forward-regexp
+ "[pool|hash|clib_fifo|clib_bitmap]_foreach"
+ (point-max) t)
+ (move-beginning-of-line nil)
+ (open-line 1)
+ (c-indent-line-or-region)
+ (insert "/* *INDENT-OFF* */")
+ (search-forward "{")
+ (backward-char)
+ (forward-sexp)
+ (move-end-of-line nil)
+ (newline 1)
+ (c-indent-line-or-region)
+ (insert "/* *INDENT-ON* */"))))
+
+(defun fix-initializer (what) (interactive)
+ (save-excursion
+ (goto-char (point-min))
+ (while (search-forward-regexp what (point-max) t)
+ (move-beginning-of-line nil)
+ (open-line 1)
+ (c-indent-line-or-region)
+ (insert "/* *INDENT-OFF* */")
+ (search-forward "{")
+ (backward-char)
+ (forward-sexp)
+ (move-end-of-line nil)
+ (newline 1)
+ (c-indent-line-or-region)
+ (insert "/* *INDENT-ON* */"))))
+
+(defun fix-vlib-register-thread () (interactive)
+ (fix-initializer "VLIB_REGISTER_THREAD *("))
+
+(defun fix-vlib-cli-command () (interactive)
+ (fix-initializer "VLIB_CLI_COMMAND *("))
+
+(defun fix-vlib-register-node () (interactive)
+ (fix-initializer "VLIB_REGISTER_NODE *("))
+
+
;; Driver routine which runs the set of keyboard macros
;; defined above, as well as the bottom boilerplate lisp fn.
(defun fd-io-styleify () (interactive)
- (save-excursion (goto-char (point-min))
- (ignore-errors (execute-kbd-macro 'fix-foreach 0)))
- (save-excursion (goto-char (point-min))
- (ignore-errors (execute-kbd-macro 'fix-cli-command 0)))
- (save-excursion (goto-char (point-min))
- (ignore-errors (execute-kbd-macro 'fix-node 0)))
- (save-excursion (goto-char (point-min))
- (ignore-errors (execute-kbd-macro 'fix-elog-type 0)))
+ (fix-foreach)
+ (fix-vlib-register-thread)
+ (fix-vlib-cli-command)
+ (fix-vlib-register-node)
(insert-style-boilerplate))
-;;(setq index 0)
-;;(while (elt argv index)
-;; (message "Processing argv %d is %s" index (elt argv index))
-;; (find-file (elt argv index))
-;; (fd-io-styleify)
-;; (setq index (1+ index)))
-;; (save-buffers-kill-emacs)
+(setq index 0)
+(while (elt argv index)
+ (message "Processing %s..." (elt argv index))
+ (find-file (elt argv index))
+ (fd-io-styleify)
+ (setq index (1+ index)))
+(save-buffers-kill-emacs t)
-/*
+/*
*------------------------------------------------------------------
* persist.c - persistent data structure storage test / demo code
*
#include <vppinfra/serialize.h>
#include <svmdb.h>
-typedef struct {
- svmdb_client_t *c;
+typedef struct
+{
+ svmdb_client_t *c;
} persist_main_t;
persist_main_t persist_main;
-typedef struct {
- u8 * string1;
- u8 * string2;
+typedef struct
+{
+ u8 *string1;
+ u8 *string2;
} demo_struct2_t;
-typedef struct {
- demo_struct2_t * demo2;
- u8 * name;
+typedef struct
+{
+ demo_struct2_t *demo2;
+ u8 *name;
} demo_struct1_t;
-/*
+/*
* Data structures in persistent shared memory, all the time
*/
-clib_error_t * persist_malloc (persist_main_t * pm)
+clib_error_t *
+persist_malloc (persist_main_t * pm)
{
- demo_struct2_t *demo2;
- demo_struct1_t *demo1;
- time_t starttime = time(0);
- char *datestring = ctime(&starttime);
- void *oldheap;
-
- /* Get back the root pointer */
- demo1 = svmdb_local_get_variable_reference
- (pm->c, SVMDB_NAMESPACE_VEC, "demo1_location");
-
- /* It doesnt exist create our data structures */
- if (demo1 == 0) {
- /* If you want MP / thread safety, lock the region... */
- pthread_mutex_lock(&pm->c->db_rp->mutex);
-
- /* Switch to the shared memory region heap */
- oldheap = svm_push_data_heap (pm->c->db_rp);
-
- /* Allocate the top-level structure as a single element vector */
- vec_validate (demo1, 0);
-
- /* Allocate the next-level structure as a plain old memory obj */
- demo2 = clib_mem_alloc (sizeof (*demo2));
-
- demo1->demo2 = demo2;
- demo1->name = format (0, "My name is Ishmael%c", 0);
- demo2->string1 = format (0, "Here is string1%c", 0);
- demo2->string2 = format (0, "Born at %s%c", datestring, 0);
-
- /* Back to the process-private heap */
- svm_pop_heap(oldheap);
- pthread_mutex_unlock(&pm->c->db_rp->mutex);
-
- /*
- * Set the root pointer. Note: this guy switches heaps, locks, etc.
- * We allocated demo1 as a vector to make this "just work..."
- */
- svmdb_local_set_vec_variable (pm->c, "demo1_location",
- demo1, sizeof (demo1));
+ demo_struct2_t *demo2;
+ demo_struct1_t *demo1;
+ time_t starttime = time (0);
+ char *datestring = ctime (&starttime);
+ void *oldheap;
+
+ /* Get back the root pointer */
+ demo1 = svmdb_local_get_variable_reference
+ (pm->c, SVMDB_NAMESPACE_VEC, "demo1_location");
+
+ /* It doesnt exist create our data structures */
+ if (demo1 == 0)
+ {
+ /* If you want MP / thread safety, lock the region... */
+ pthread_mutex_lock (&pm->c->db_rp->mutex);
+
+ /* Switch to the shared memory region heap */
+ oldheap = svm_push_data_heap (pm->c->db_rp);
+
+ /* Allocate the top-level structure as a single element vector */
+ vec_validate (demo1, 0);
+
+ /* Allocate the next-level structure as a plain old memory obj */
+ demo2 = clib_mem_alloc (sizeof (*demo2));
+
+ demo1->demo2 = demo2;
+ demo1->name = format (0, "My name is Ishmael%c", 0);
+ demo2->string1 = format (0, "Here is string1%c", 0);
+ demo2->string2 = format (0, "Born at %s%c", datestring, 0);
+
+ /* Back to the process-private heap */
+ svm_pop_heap (oldheap);
+ pthread_mutex_unlock (&pm->c->db_rp->mutex);
+
+ /*
+ * Set the root pointer. Note: this guy switches heaps, locks, etc.
+ * We allocated demo1 as a vector to make this "just work..."
+ */
+ svmdb_local_set_vec_variable (pm->c, "demo1_location",
+ demo1, sizeof (demo1));
}
- else {
- /* retrieve and print data from shared memory */
- demo2 = demo1->demo2;
- fformat (stdout, "name: %s\n", demo1->name);
- fformat (stdout, "demo2 location: %llx\n", demo2);
- fformat (stdout, "string1: %s\n", demo2->string1);
- fformat (stdout, "string2: %s\n", demo2->string2);
+ else
+ {
+ /* retrieve and print data from shared memory */
+ demo2 = demo1->demo2;
+ fformat (stdout, "name: %s\n", demo1->name);
+ fformat (stdout, "demo2 location: %llx\n", demo2);
+ fformat (stdout, "string1: %s\n", demo2->string1);
+ fformat (stdout, "string2: %s\n", demo2->string2);
}
- return 0;
+ return 0;
}
-void unserialize_demo1 (serialize_main_t *sm, va_list * args)
+void
+unserialize_demo1 (serialize_main_t * sm, va_list * args)
{
- demo_struct1_t ** result = va_arg (*args, demo_struct1_t **);
- demo_struct1_t * demo1;
- demo_struct2_t * demo2;
-
- /* Allocate data structures in process private memory */
- demo1 = clib_mem_alloc (sizeof (*demo1));
- demo2 = clib_mem_alloc (sizeof (*demo2));
- demo1->demo2 = demo2;
-
- /* retrieve data from shared memory checkpoint */
- unserialize_cstring (sm, (char **) &demo1->name);
- unserialize_cstring (sm, (char **) &demo2->string1);
- unserialize_cstring (sm, (char **) &demo2->string2);
- *result = demo1;
+ demo_struct1_t **result = va_arg (*args, demo_struct1_t **);
+ demo_struct1_t *demo1;
+ demo_struct2_t *demo2;
+
+ /* Allocate data structures in process private memory */
+ demo1 = clib_mem_alloc (sizeof (*demo1));
+ demo2 = clib_mem_alloc (sizeof (*demo2));
+ demo1->demo2 = demo2;
+
+ /* retrieve data from shared memory checkpoint */
+ unserialize_cstring (sm, (char **) &demo1->name);
+ unserialize_cstring (sm, (char **) &demo2->string1);
+ unserialize_cstring (sm, (char **) &demo2->string2);
+ *result = demo1;
}
-void serialize_demo1 (serialize_main_t *sm, va_list * args)
+void
+serialize_demo1 (serialize_main_t * sm, va_list * args)
{
- demo_struct1_t * demo1 = va_arg (*args, demo_struct1_t *);
- demo_struct2_t * demo2 = demo1->demo2;
+ demo_struct1_t *demo1 = va_arg (*args, demo_struct1_t *);
+ demo_struct2_t *demo2 = demo1->demo2;
- serialize_cstring (sm, (char *)demo1->name);
- serialize_cstring (sm, (char *)demo2->string1);
- serialize_cstring (sm, (char *)demo2->string2);
-}
+ serialize_cstring (sm, (char *) demo1->name);
+ serialize_cstring (sm, (char *) demo2->string1);
+ serialize_cstring (sm, (char *) demo2->string2);
+}
/* Serialize / unserialize variant */
-clib_error_t *
+clib_error_t *
persist_serialize (persist_main_t * pm)
{
- u8 * checkpoint;
- serialize_main_t sm;
-
- demo_struct2_t *demo2;
- demo_struct1_t *demo1;
- time_t starttime = time(0);
- char *datestring = ctime(&starttime);
-
- /* Get back the root pointer */
- checkpoint = svmdb_local_get_vec_variable (pm->c, "demo1_checkpoint",
- sizeof (u8));
-
- /* It doesnt exist create our data structures */
- if (checkpoint == 0) {
- /* Allocate data structures in process-private memory */
- demo1 = clib_mem_alloc (sizeof (*demo2));
- vec_validate (demo1, 0);
- demo2 = clib_mem_alloc (sizeof (*demo2));
-
- demo1->demo2 = demo2;
- demo1->name = format (0, "My name is Ishmael%c", 0);
- demo2->string1 = format (0, "Here is string1%c", 0);
- demo2->string2 = format (0, "Born at %s%c", datestring, 0);
-
- /* Create checkpoint */
- serialize_open_vector (&sm, checkpoint);
- serialize (&sm, serialize_demo1, demo1);
- checkpoint = serialize_close_vector (&sm);
-
- /* Copy checkpoint into shared memory */
- svmdb_local_set_vec_variable (pm->c, "demo1_checkpoint",
- checkpoint, sizeof (u8));
- /* Toss the process-private-memory original.. */
- vec_free (checkpoint);
+ u8 *checkpoint;
+ serialize_main_t sm;
+
+ demo_struct2_t *demo2;
+ demo_struct1_t *demo1;
+ time_t starttime = time (0);
+ char *datestring = ctime (&starttime);
+
+ /* Get back the root pointer */
+ checkpoint = svmdb_local_get_vec_variable (pm->c, "demo1_checkpoint",
+ sizeof (u8));
+
+ /* It doesnt exist create our data structures */
+ if (checkpoint == 0)
+ {
+ /* Allocate data structures in process-private memory */
+ demo1 = clib_mem_alloc (sizeof (*demo2));
+ vec_validate (demo1, 0);
+ demo2 = clib_mem_alloc (sizeof (*demo2));
+
+ demo1->demo2 = demo2;
+ demo1->name = format (0, "My name is Ishmael%c", 0);
+ demo2->string1 = format (0, "Here is string1%c", 0);
+ demo2->string2 = format (0, "Born at %s%c", datestring, 0);
+
+ /* Create checkpoint */
+ serialize_open_vector (&sm, checkpoint);
+ serialize (&sm, serialize_demo1, demo1);
+ checkpoint = serialize_close_vector (&sm);
+
+ /* Copy checkpoint into shared memory */
+ svmdb_local_set_vec_variable (pm->c, "demo1_checkpoint",
+ checkpoint, sizeof (u8));
+ /* Toss the process-private-memory original.. */
+ vec_free (checkpoint);
}
- else {
- /* Open the checkpoint */
- unserialize_open_data (&sm, checkpoint, vec_len (checkpoint));
- unserialize (&sm, unserialize_demo1, &demo1);
-
- /* Toss the process-private-memory checkpoint copy */
- vec_free (checkpoint);
-
- /* Off we go... */
- demo2 = demo1->demo2;
- fformat (stdout, "name: %s\n", demo1->name);
- fformat (stdout, "demo2 location: %llx\n", demo2);
- fformat (stdout, "string1: %s\n", demo2->string1);
- fformat (stdout, "string2: %s\n", demo2->string2);
+ else
+ {
+ /* Open the checkpoint */
+ unserialize_open_data (&sm, checkpoint, vec_len (checkpoint));
+ unserialize (&sm, unserialize_demo1, &demo1);
+
+ /* Toss the process-private-memory checkpoint copy */
+ vec_free (checkpoint);
+
+ /* Off we go... */
+ demo2 = demo1->demo2;
+ fformat (stdout, "name: %s\n", demo1->name);
+ fformat (stdout, "demo2 location: %llx\n", demo2);
+ fformat (stdout, "string1: %s\n", demo2->string1);
+ fformat (stdout, "string2: %s\n", demo2->string2);
}
- return 0;
+ return 0;
}
-int main (int argc, char **argv)
+int
+main (int argc, char **argv)
{
- unformat_input_t _input, *input=&_input;
- persist_main_t * pm = &persist_main;
- clib_error_t * error = 0;
-
- /* Make a 4mb database arena, chroot so it's truly private */
- pm->c = svmdb_map_chroot_size ("/ptest", 4<<20);
-
- ASSERT(pm->c);
-
- unformat_init_command_line (input, argv);
-
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT) {
- if (unformat (input, "malloc"))
- error = persist_malloc (pm);
- else if (unformat (input, "serialize"))
- error = persist_serialize (pm);
- else {
- error = clib_error_return (0, "Unknown flavor '%U'",
- format_unformat_error, input);
- break;
- }
+ unformat_input_t _input, *input = &_input;
+ persist_main_t *pm = &persist_main;
+ clib_error_t *error = 0;
+
+ /* Make a 4mb database arena, chroot so it's truly private */
+ pm->c = svmdb_map_chroot_size ("/ptest", 4 << 20);
+
+ ASSERT (pm->c);
+
+ unformat_init_command_line (input, argv);
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "malloc"))
+ error = persist_malloc (pm);
+ else if (unformat (input, "serialize"))
+ error = persist_serialize (pm);
+ else
+ {
+ error = clib_error_return (0, "Unknown flavor '%U'",
+ format_unformat_error, input);
+ break;
+ }
}
- svmdb_unmap (pm->c);
+ svmdb_unmap (pm->c);
- if (error) {
- clib_error_report (error);
- exit (1);
+ if (error)
+ {
+ clib_error_report (error);
+ exit (1);
}
- return 0;
+ return 0;
}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
*/
#include "ssvm.h"
-int ssvm_master_init (ssvm_private_t * ssvm, u32 master_index)
+int
+ssvm_master_init (ssvm_private_t * ssvm, u32 master_index)
{
int ssvm_fd;
- u8 * ssvm_filename;
+ u8 *ssvm_filename;
u8 junk = 0;
int flags;
- ssvm_shared_header_t * sh;
- u64 ticks = clib_cpu_time_now();
+ ssvm_shared_header_t *sh;
+ u64 ticks = clib_cpu_time_now ();
u64 randomize_baseva;
- void * oldheap;
+ void *oldheap;
if (ssvm->ssvm_size == 0)
return SSVM_API_ERROR_NO_SIZE;
unlink ((char *) ssvm_filename);
- vec_free(ssvm_filename);
+ vec_free (ssvm_filename);
- ssvm_fd = shm_open((char *) ssvm->name, O_RDWR | O_CREAT | O_EXCL, 0777);
+ ssvm_fd = shm_open ((char *) ssvm->name, O_RDWR | O_CREAT | O_EXCL, 0777);
if (ssvm_fd < 0)
{
return SSVM_API_ERROR_CREATE_FAILURE;
}
- lseek(ssvm_fd, ssvm->ssvm_size, SEEK_SET);
- if (write(ssvm_fd, &junk, 1) != 1)
+ lseek (ssvm_fd, ssvm->ssvm_size, SEEK_SET);
+ if (write (ssvm_fd, &junk, 1) != 1)
{
clib_unix_warning ("set ssvm size");
- close(ssvm_fd);
+ close (ssvm_fd);
return SSVM_API_ERROR_SET_SIZE;
}
-
+
flags = MAP_SHARED;
if (ssvm->requested_va)
flags |= MAP_FIXED;
if (ssvm->requested_va)
ssvm->requested_va += randomize_baseva;
-
- sh = ssvm->sh = (ssvm_shared_header_t *) mmap((void *)ssvm->requested_va, ssvm->ssvm_size,
- PROT_READ | PROT_WRITE, flags, ssvm_fd, 0);
+
+ sh = ssvm->sh =
+ (ssvm_shared_header_t *) mmap ((void *) ssvm->requested_va,
+ ssvm->ssvm_size, PROT_READ | PROT_WRITE,
+ flags, ssvm_fd, 0);
if (ssvm->sh == MAP_FAILED)
{
clib_unix_warning ("mmap");
- close(ssvm_fd);
+ close (ssvm_fd);
return SSVM_API_ERROR_MMAP;
}
- close(ssvm_fd);
+ close (ssvm_fd);
- ssvm->my_pid = getpid();
+ ssvm->my_pid = getpid ();
sh->master_pid = ssvm->my_pid;
sh->ssvm_size = ssvm->ssvm_size;
- sh->heap = mheap_alloc_with_flags
- (((u8 *)sh) + MMAP_PAGESIZE, ssvm->ssvm_size - MMAP_PAGESIZE,
+ sh->heap = mheap_alloc_with_flags
+ (((u8 *) sh) + MMAP_PAGESIZE, ssvm->ssvm_size - MMAP_PAGESIZE,
MHEAP_FLAG_DISABLE_VM | MHEAP_FLAG_THREAD_SAFE);
- sh->ssvm_va = pointer_to_uword(sh);
+ sh->ssvm_va = pointer_to_uword (sh);
sh->master_index = master_index;
oldheap = ssvm_push_heap (sh);
return 0;
}
-int ssvm_slave_init (ssvm_private_t * ssvm, int timeout_in_seconds)
+int
+ssvm_slave_init (ssvm_private_t * ssvm, int timeout_in_seconds)
{
- struct stat stat;
- int ssvm_fd = -1;
- ssvm_shared_header_t * sh;
-
- ssvm->i_am_master = 0;
-
- while (timeout_in_seconds-- > 0)
- {
- if (ssvm_fd < 0)
- ssvm_fd = shm_open((char *)ssvm->name, O_RDWR, 0777);
- if (ssvm_fd < 0)
- {
- sleep (1);
- continue;
- }
- if (fstat(ssvm_fd, &stat) < 0)
- {
- sleep (1);
- continue;
- }
-
- if (stat.st_size > 0)
- goto map_it;
- }
- clib_warning ("slave timeout");
- return SSVM_API_ERROR_SLAVE_TIMEOUT;
-
- map_it:
- sh = (void *) mmap (0, MMAP_PAGESIZE, PROT_READ | PROT_WRITE, MAP_SHARED,
- ssvm_fd, 0);
- if (sh == MAP_FAILED)
- {
- clib_unix_warning ("slave research mmap");
- close (ssvm_fd);
- return SSVM_API_ERROR_MMAP;
- }
-
- while (timeout_in_seconds-- > 0)
- {
- if (sh->ready)
- goto re_map_it;
- }
- close (ssvm_fd);
- munmap (sh, MMAP_PAGESIZE);
- clib_warning ("slave timeout 2");
- return SSVM_API_ERROR_SLAVE_TIMEOUT;
-
- re_map_it:
- ssvm->requested_va = (u64) sh->ssvm_va;
- ssvm->ssvm_size = sh->ssvm_size;
- munmap (sh, MMAP_PAGESIZE);
-
- sh = ssvm->sh = (void *) mmap((void *)ssvm->requested_va, ssvm->ssvm_size,
- PROT_READ | PROT_WRITE,
- MAP_SHARED | MAP_FIXED,
- ssvm_fd, 0);
-
- if (sh == MAP_FAILED)
- {
- clib_unix_warning ("slave final mmap");
- close (ssvm_fd);
- return SSVM_API_ERROR_MMAP;
- }
- sh->slave_pid = getpid();
- return 0;
+ struct stat stat;
+ int ssvm_fd = -1;
+ ssvm_shared_header_t *sh;
+
+ ssvm->i_am_master = 0;
+
+ while (timeout_in_seconds-- > 0)
+ {
+ if (ssvm_fd < 0)
+ ssvm_fd = shm_open ((char *) ssvm->name, O_RDWR, 0777);
+ if (ssvm_fd < 0)
+ {
+ sleep (1);
+ continue;
+ }
+ if (fstat (ssvm_fd, &stat) < 0)
+ {
+ sleep (1);
+ continue;
+ }
+
+ if (stat.st_size > 0)
+ goto map_it;
+ }
+ clib_warning ("slave timeout");
+ return SSVM_API_ERROR_SLAVE_TIMEOUT;
+
+map_it:
+ sh = (void *) mmap (0, MMAP_PAGESIZE, PROT_READ | PROT_WRITE, MAP_SHARED,
+ ssvm_fd, 0);
+ if (sh == MAP_FAILED)
+ {
+ clib_unix_warning ("slave research mmap");
+ close (ssvm_fd);
+ return SSVM_API_ERROR_MMAP;
+ }
+
+ while (timeout_in_seconds-- > 0)
+ {
+ if (sh->ready)
+ goto re_map_it;
+ }
+ close (ssvm_fd);
+ munmap (sh, MMAP_PAGESIZE);
+ clib_warning ("slave timeout 2");
+ return SSVM_API_ERROR_SLAVE_TIMEOUT;
+
+re_map_it:
+ ssvm->requested_va = (u64) sh->ssvm_va;
+ ssvm->ssvm_size = sh->ssvm_size;
+ munmap (sh, MMAP_PAGESIZE);
+
+ sh = ssvm->sh = (void *) mmap ((void *) ssvm->requested_va, ssvm->ssvm_size,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED | MAP_FIXED, ssvm_fd, 0);
+
+ if (sh == MAP_FAILED)
+ {
+ clib_unix_warning ("slave final mmap");
+ close (ssvm_fd);
+ return SSVM_API_ERROR_MMAP;
+ }
+ sh->slave_pid = getpid ();
+ return 0;
}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
#define MMAP_PAGESIZE (4<<10)
#define SSVM_N_OPAQUE 7
-typedef struct {
+typedef struct
+{
/* Spin-lock */
volatile u32 lock;
volatile u32 owner_pid;
int recursion_count;
- u32 tag; /* for debugging */
+ u32 tag; /* for debugging */
/* The allocation arena */
- void * heap;
+ void *heap;
/* Segment must be mapped at this address, or no supper */
u64 ssvm_va;
u64 ssvm_size;
u32 master_pid;
u32 slave_pid;
- u8 * name;
- void * opaque [SSVM_N_OPAQUE];
+ u8 *name;
+ void *opaque[SSVM_N_OPAQUE];
/* Set when the master application thinks it's time to make the donuts */
volatile u32 ready;
u32 master_index;
} ssvm_shared_header_t;
-typedef struct {
- ssvm_shared_header_t * sh;
+typedef struct
+{
+ ssvm_shared_header_t *sh;
u64 ssvm_size;
u32 my_pid;
u32 vlib_hw_if_index;
- u8 * name;
+ u8 *name;
uword requested_va;
int i_am_master;
u32 per_interface_next_index;
- u32 * rx_queue;
+ u32 *rx_queue;
} ssvm_private_t;
-always_inline void ssvm_lock (ssvm_shared_header_t * h, u32 my_pid, u32 tag)
+always_inline void
+ssvm_lock (ssvm_shared_header_t * h, u32 my_pid, u32 tag)
{
if (h->owner_pid == my_pid)
{
h->recursion_count++;
return;
}
-
+
while (__sync_lock_test_and_set (&h->lock, 1))
;
-
+
h->owner_pid = my_pid;
h->recursion_count = 1;
h->tag = tag;
}
-always_inline void ssvm_unlock (ssvm_shared_header_t * h)
+always_inline void
+ssvm_unlock (ssvm_shared_header_t * h)
{
if (--h->recursion_count == 0)
{
h->owner_pid = 0;
h->tag = 0;
- CLIB_MEMORY_BARRIER();
+ CLIB_MEMORY_BARRIER ();
h->lock = 0;
}
}
-static inline void *ssvm_push_heap (ssvm_shared_header_t *sh)
+static inline void *
+ssvm_push_heap (ssvm_shared_header_t * sh)
{
- u8 *oldheap;
- oldheap = clib_mem_set_heap(sh->heap);
- return ((void *) oldheap);
+ u8 *oldheap;
+ oldheap = clib_mem_set_heap (sh->heap);
+ return ((void *) oldheap);
}
-static inline void ssvm_pop_heap (void *oldheap)
+static inline void
+ssvm_pop_heap (void *oldheap)
{
- clib_mem_set_heap(oldheap);
+ clib_mem_set_heap (oldheap);
}
#define foreach_ssvm_api_error \
_(MMAP, "mmap failed", -14) \
_(SLAVE_TIMEOUT, "Slave map timeout", -15)
-typedef enum {
+typedef enum
+{
#define _(n,s,c) SSVM_API_ERROR_##n = c,
foreach_ssvm_api_error
#undef _
int ssvm_slave_init (ssvm_private_t * ssvm, int timeout_in_seconds);
#endif /* __included_ssvm_h__ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
-/*
+/*
*------------------------------------------------------------------
- * svm.c - shared VM allocation, mmap(...MAP_FIXED...)
+ * svm.c - shared VM allocation, mmap(...MAP_FIXED...)
* library
*
* Copyright (c) 2009 Cisco and/or its affiliates.
static int root_rp_refcount;
#define MAXLOCK 2
-static pthread_mutex_t *mutexes_held [MAXLOCK];
+static pthread_mutex_t *mutexes_held[MAXLOCK];
static int nheld;
-svm_region_t *svm_get_root_rp (void)
+svm_region_t *
+svm_get_root_rp (void)
{
- return root_rp;
+ return root_rp;
}
#define MUTEX_DEBUG
-static void region_lock(svm_region_t *rp, int tag)
+static void
+region_lock (svm_region_t * rp, int tag)
{
- pthread_mutex_lock(&rp->mutex);
+ pthread_mutex_lock (&rp->mutex);
#ifdef MUTEX_DEBUG
- rp->mutex_owner_pid = getpid();
- rp->mutex_owner_tag = tag;
-#endif
- ASSERT(nheld < MAXLOCK);
- /*
- * Keep score of held mutexes so we can try to exit
- * cleanly if the world comes to an end at the worst possible
- * moment
- */
- mutexes_held [nheld++] = &rp->mutex;
+ rp->mutex_owner_pid = getpid ();
+ rp->mutex_owner_tag = tag;
+#endif
+ ASSERT (nheld < MAXLOCK);
+ /*
+ * Keep score of held mutexes so we can try to exit
+ * cleanly if the world comes to an end at the worst possible
+ * moment
+ */
+ mutexes_held[nheld++] = &rp->mutex;
}
-static void region_unlock(svm_region_t *rp)
+static void
+region_unlock (svm_region_t * rp)
{
- int i,j;
+ int i, j;
#ifdef MUTEX_DEBUG
- rp->mutex_owner_pid = 0;
- rp->mutex_owner_tag = 0;
-#endif
-
- for (i = nheld-1; i >= 0; i--) {
- if (mutexes_held[i] == &rp->mutex) {
- for (j = i; j < MAXLOCK-1; j++)
- mutexes_held[j] = mutexes_held[j+1];
- nheld--;
- goto found;
- }
+ rp->mutex_owner_pid = 0;
+ rp->mutex_owner_tag = 0;
+#endif
+
+ for (i = nheld - 1; i >= 0; i--)
+ {
+ if (mutexes_held[i] == &rp->mutex)
+ {
+ for (j = i; j < MAXLOCK - 1; j++)
+ mutexes_held[j] = mutexes_held[j + 1];
+ nheld--;
+ goto found;
+ }
}
- ASSERT(0);
+ ASSERT (0);
found:
- CLIB_MEMORY_BARRIER();
- pthread_mutex_unlock(&rp->mutex);
+ CLIB_MEMORY_BARRIER ();
+ pthread_mutex_unlock (&rp->mutex);
}
-static u8 * format_svm_flags (u8 * s, va_list * args)
+static u8 *
+format_svm_flags (u8 * s, va_list * args)
{
- uword f = va_arg (*args, uword);
-
- if (f & SVM_FLAGS_MHEAP)
- s = format (s, "MHEAP ");
- if (f & SVM_FLAGS_FILE)
- s = format (s, "FILE ");
- if (f & SVM_FLAGS_NODATA)
- s = format (s, "NODATA ");
- if (f & SVM_FLAGS_NEED_DATA_INIT)
- s = format (s, "INIT ");
-
- return (s);
+ uword f = va_arg (*args, uword);
+
+ if (f & SVM_FLAGS_MHEAP)
+ s = format (s, "MHEAP ");
+ if (f & SVM_FLAGS_FILE)
+ s = format (s, "FILE ");
+ if (f & SVM_FLAGS_NODATA)
+ s = format (s, "NODATA ");
+ if (f & SVM_FLAGS_NEED_DATA_INIT)
+ s = format (s, "INIT ");
+
+ return (s);
}
-static u8 * format_svm_size (u8 * s, va_list * args)
+static u8 *
+format_svm_size (u8 * s, va_list * args)
{
- uword size = va_arg (*args, uword);
-
- if (size >= (1<<20)) {
- s = format (s, "(%d mb)", size >> 20);
- } else if (size >= (1<<10)) {
- s = format (s, "(%d kb)", size >> 10);
- } else {
- s = format (s, "(%d bytes)", size);
+ uword size = va_arg (*args, uword);
+
+ if (size >= (1 << 20))
+ {
+ s = format (s, "(%d mb)", size >> 20);
+ }
+ else if (size >= (1 << 10))
+ {
+ s = format (s, "(%d kb)", size >> 10);
}
- return (s);
+ else
+ {
+ s = format (s, "(%d bytes)", size);
+ }
+ return (s);
}
-u8 * format_svm_region (u8 * s, va_list * args)
+u8 *
+format_svm_region (u8 * s, va_list * args)
{
- svm_region_t *rp = va_arg (*args, svm_region_t *);
- int verbose = va_arg (*args, int);
- int i;
- uword lo, hi;
-
- s = format (s, "%s: base va 0x%x size 0x%x %U\n",
- rp->region_name, rp->virtual_base,
- rp->virtual_size, format_svm_size, rp->virtual_size);
- s = format (s, " user_ctx 0x%x, bitmap_size %d\n",
- rp->user_ctx, rp->bitmap_size);
-
- if (verbose) {
- s = format (s, " flags: 0x%x %U\n", rp->flags,
- format_svm_flags, rp->flags);
- s = format (s,
- " region_heap 0x%x data_base 0x%x data_heap 0x%x\n",
- rp->region_heap, rp->data_base, rp->data_heap);
+ svm_region_t *rp = va_arg (*args, svm_region_t *);
+ int verbose = va_arg (*args, int);
+ int i;
+ uword lo, hi;
+
+ s = format (s, "%s: base va 0x%x size 0x%x %U\n",
+ rp->region_name, rp->virtual_base,
+ rp->virtual_size, format_svm_size, rp->virtual_size);
+ s = format (s, " user_ctx 0x%x, bitmap_size %d\n",
+ rp->user_ctx, rp->bitmap_size);
+
+ if (verbose)
+ {
+ s = format (s, " flags: 0x%x %U\n", rp->flags,
+ format_svm_flags, rp->flags);
+ s = format (s,
+ " region_heap 0x%x data_base 0x%x data_heap 0x%x\n",
+ rp->region_heap, rp->data_base, rp->data_heap);
}
- s = format (s, " %d clients, pids: ",
- vec_len(rp->client_pids));
-
- for (i = 0; i < vec_len(rp->client_pids); i++)
- s = format (s, "%d ", rp->client_pids[i]);
-
- s = format (s, "\n");
-
- if (verbose) {
- lo = hi = ~0;
-
- s = format (s, " VM in use: ");
-
- for (i = 0; i < rp->bitmap_size; i++) {
- if (clib_bitmap_get_no_check (rp->bitmap, i) != 0) {
- if (lo == ~0) {
- hi = lo = rp->virtual_base + i*MMAP_PAGESIZE;
- } else {
- hi = rp->virtual_base + i*MMAP_PAGESIZE;
- }
- } else {
- if (lo != ~0) {
- hi = rp->virtual_base + i*MMAP_PAGESIZE -1;
- s = format (s, " 0x%x - 0x%x (%dk)\n", lo, hi,
- (hi - lo)>>10);
- lo = hi = ~0;
- }
- }
- }
- s = format (s, " rgn heap stats: %U", format_mheap,
- rp->region_heap, 0);
- if ((rp->flags & SVM_FLAGS_MHEAP) && rp->data_heap) {
- s = format (s, "\n data heap stats: %U", format_mheap,
- rp->data_heap, 1);
- }
- s = format (s, "\n");
+ s = format (s, " %d clients, pids: ", vec_len (rp->client_pids));
+
+ for (i = 0; i < vec_len (rp->client_pids); i++)
+ s = format (s, "%d ", rp->client_pids[i]);
+
+ s = format (s, "\n");
+
+ if (verbose)
+ {
+ lo = hi = ~0;
+
+ s = format (s, " VM in use: ");
+
+ for (i = 0; i < rp->bitmap_size; i++)
+ {
+ if (clib_bitmap_get_no_check (rp->bitmap, i) != 0)
+ {
+ if (lo == ~0)
+ {
+ hi = lo = rp->virtual_base + i * MMAP_PAGESIZE;
+ }
+ else
+ {
+ hi = rp->virtual_base + i * MMAP_PAGESIZE;
+ }
+ }
+ else
+ {
+ if (lo != ~0)
+ {
+ hi = rp->virtual_base + i * MMAP_PAGESIZE - 1;
+ s = format (s, " 0x%x - 0x%x (%dk)\n", lo, hi,
+ (hi - lo) >> 10);
+ lo = hi = ~0;
+ }
+ }
+ }
+ s = format (s, " rgn heap stats: %U", format_mheap,
+ rp->region_heap, 0);
+ if ((rp->flags & SVM_FLAGS_MHEAP) && rp->data_heap)
+ {
+ s = format (s, "\n data heap stats: %U", format_mheap,
+ rp->data_heap, 1);
+ }
+ s = format (s, "\n");
}
- return(s);
+ return (s);
}
/*
* rnd_pagesize
* Round to a pagesize multiple, presumably 4k works
*/
-static unsigned int rnd_pagesize(unsigned int size)
+static unsigned int
+rnd_pagesize (unsigned int size)
{
- unsigned int rv;
+ unsigned int rv;
- rv = (size + (MMAP_PAGESIZE-1)) & ~(MMAP_PAGESIZE-1);
- return(rv);
+ rv = (size + (MMAP_PAGESIZE - 1)) & ~(MMAP_PAGESIZE - 1);
+ return (rv);
}
-/*
+/*
* svm_data_region_setup
*/
-static int svm_data_region_create (svm_map_region_args_t *a,
- svm_region_t *rp)
+static int
+svm_data_region_create (svm_map_region_args_t * a, svm_region_t * rp)
{
- int fd;
- u8 junk = 0;
- uword map_size;
-
- map_size = rp->virtual_size - (MMAP_PAGESIZE + SVM_PVT_MHEAP_SIZE);
-
- if (a->flags & SVM_FLAGS_FILE) {
- struct stat statb;
-
- fd = open (a->backing_file, O_RDWR | O_CREAT, 0777);
-
- if (fd < 0) {
- clib_unix_warning ("open");
- return -1;
- }
-
- if (fstat(fd, &statb) < 0) {
- clib_unix_warning("fstat");
- close (fd);
- return -2;
- }
-
- if (statb.st_mode & S_IFREG) {
- if (statb.st_size == 0) {
- if (lseek(fd, map_size, SEEK_SET) == (off_t) -1) {
- clib_unix_warning ("seek region size");
- close (fd);
- return -3;
- }
- if (write(fd, &junk, 1) != 1) {
- clib_unix_warning ("set region size");
- close (fd);
- return -3;
- }
- } else {
- map_size = rnd_pagesize (statb.st_size);
- }
- } else {
- map_size = a->backing_mmap_size;
- }
-
- ASSERT(map_size <= rp->virtual_size -
- (MMAP_PAGESIZE + SVM_PVT_MHEAP_SIZE));
-
- if (mmap (rp->data_base, map_size, PROT_READ | PROT_WRITE,
- MAP_SHARED | MAP_FIXED, fd, 0) == MAP_FAILED) {
- clib_unix_warning("mmap");
- close (fd);
- return -3;
- }
- close(fd);
- rp->backing_file = (char *) format(0, "%s\0", a->backing_file);
- rp->flags |= SVM_FLAGS_FILE;
+ int fd;
+ u8 junk = 0;
+ uword map_size;
+
+ map_size = rp->virtual_size - (MMAP_PAGESIZE + SVM_PVT_MHEAP_SIZE);
+
+ if (a->flags & SVM_FLAGS_FILE)
+ {
+ struct stat statb;
+
+ fd = open (a->backing_file, O_RDWR | O_CREAT, 0777);
+
+ if (fd < 0)
+ {
+ clib_unix_warning ("open");
+ return -1;
+ }
+
+ if (fstat (fd, &statb) < 0)
+ {
+ clib_unix_warning ("fstat");
+ close (fd);
+ return -2;
+ }
+
+ if (statb.st_mode & S_IFREG)
+ {
+ if (statb.st_size == 0)
+ {
+ if (lseek (fd, map_size, SEEK_SET) == (off_t) - 1)
+ {
+ clib_unix_warning ("seek region size");
+ close (fd);
+ return -3;
+ }
+ if (write (fd, &junk, 1) != 1)
+ {
+ clib_unix_warning ("set region size");
+ close (fd);
+ return -3;
+ }
+ }
+ else
+ {
+ map_size = rnd_pagesize (statb.st_size);
+ }
+ }
+ else
+ {
+ map_size = a->backing_mmap_size;
+ }
+
+ ASSERT (map_size <= rp->virtual_size -
+ (MMAP_PAGESIZE + SVM_PVT_MHEAP_SIZE));
+
+ if (mmap (rp->data_base, map_size, PROT_READ | PROT_WRITE,
+ MAP_SHARED | MAP_FIXED, fd, 0) == MAP_FAILED)
+ {
+ clib_unix_warning ("mmap");
+ close (fd);
+ return -3;
+ }
+ close (fd);
+ rp->backing_file = (char *) format (0, "%s\0", a->backing_file);
+ rp->flags |= SVM_FLAGS_FILE;
}
-
- if (a->flags & SVM_FLAGS_MHEAP) {
- rp->data_heap =
- mheap_alloc_with_flags ((void *)(rp->data_base), map_size,
- MHEAP_FLAG_DISABLE_VM);
- rp->flags |= SVM_FLAGS_MHEAP;
+
+ if (a->flags & SVM_FLAGS_MHEAP)
+ {
+ rp->data_heap =
+ mheap_alloc_with_flags ((void *) (rp->data_base), map_size,
+ MHEAP_FLAG_DISABLE_VM);
+ rp->flags |= SVM_FLAGS_MHEAP;
}
- return 0;
+ return 0;
}
-static int svm_data_region_map (svm_map_region_args_t *a,
- svm_region_t *rp)
+static int
+svm_data_region_map (svm_map_region_args_t * a, svm_region_t * rp)
{
- int fd;
- u8 junk = 0;
- uword map_size;
- struct stat statb;
-
- map_size = rp->virtual_size - (MMAP_PAGESIZE + SVM_PVT_MHEAP_SIZE);
-
- if (a->flags & SVM_FLAGS_FILE) {
-
- fd = open (a->backing_file, O_RDWR, 0777);
-
- if (fd < 0) {
- clib_unix_warning ("open");
- return -1;
- }
-
- if (fstat(fd, &statb) < 0) {
- clib_unix_warning("fstat");
- close (fd);
- return -2;
- }
-
- if (statb.st_mode & S_IFREG) {
- if (statb.st_size == 0) {
- if (lseek(fd, map_size, SEEK_SET) == (off_t) -1) {
- clib_unix_warning ("seek region size");
- close (fd);
- return -3;
- }
- if (write(fd, &junk, 1) != 1) {
- clib_unix_warning ("set region size");
- close (fd);
- return -3;
- }
- } else {
- map_size = rnd_pagesize (statb.st_size);
- }
- } else {
- map_size = a->backing_mmap_size;
- }
-
- ASSERT(map_size <= rp->virtual_size
- - (MMAP_PAGESIZE + SVM_PVT_MHEAP_SIZE));
-
- if (mmap (rp->data_base, map_size, PROT_READ | PROT_WRITE,
- MAP_SHARED | MAP_FIXED, fd, 0) == MAP_FAILED) {
- clib_unix_warning("mmap");
- close (fd);
- return -3;
- }
- close(fd);
+ int fd;
+ u8 junk = 0;
+ uword map_size;
+ struct stat statb;
+
+ map_size = rp->virtual_size - (MMAP_PAGESIZE + SVM_PVT_MHEAP_SIZE);
+
+ if (a->flags & SVM_FLAGS_FILE)
+ {
+
+ fd = open (a->backing_file, O_RDWR, 0777);
+
+ if (fd < 0)
+ {
+ clib_unix_warning ("open");
+ return -1;
+ }
+
+ if (fstat (fd, &statb) < 0)
+ {
+ clib_unix_warning ("fstat");
+ close (fd);
+ return -2;
+ }
+
+ if (statb.st_mode & S_IFREG)
+ {
+ if (statb.st_size == 0)
+ {
+ if (lseek (fd, map_size, SEEK_SET) == (off_t) - 1)
+ {
+ clib_unix_warning ("seek region size");
+ close (fd);
+ return -3;
+ }
+ if (write (fd, &junk, 1) != 1)
+ {
+ clib_unix_warning ("set region size");
+ close (fd);
+ return -3;
+ }
+ }
+ else
+ {
+ map_size = rnd_pagesize (statb.st_size);
+ }
+ }
+ else
+ {
+ map_size = a->backing_mmap_size;
+ }
+
+ ASSERT (map_size <= rp->virtual_size
+ - (MMAP_PAGESIZE + SVM_PVT_MHEAP_SIZE));
+
+ if (mmap (rp->data_base, map_size, PROT_READ | PROT_WRITE,
+ MAP_SHARED | MAP_FIXED, fd, 0) == MAP_FAILED)
+ {
+ clib_unix_warning ("mmap");
+ close (fd);
+ return -3;
+ }
+ close (fd);
}
- return 0;
+ return 0;
}
-u8 *shm_name_from_svm_map_region_args (svm_map_region_args_t *a)
+u8 *
+shm_name_from_svm_map_region_args (svm_map_region_args_t * a)
{
- u8 *path;
- u8 *shm_name;
- u8 *split_point;
- u8 *mkdir_arg = 0;
- int root_path_offset = 0;
- int name_offset = 0;
-
- if (a->root_path) {
- /* Tolerate present or absent slashes */
- if (a->root_path[0] == '/')
- root_path_offset++;
-
- /* create the root_path under /dev/shm
- iterate through path creating directories */
-
- path = format (0, "/dev/shm/%s%c", &a->root_path[root_path_offset], 0);
- split_point = path+1;
- vec_add1(mkdir_arg, '-');
-
- while (*split_point) {
- while (*split_point && *split_point != '/') {
- vec_add1 (mkdir_arg, *split_point);
- split_point++;
- }
- vec_add1 (mkdir_arg, 0);
-
- /* ready to descend another level */
- mkdir_arg[vec_len(mkdir_arg)-1] = '-';
- split_point++;
- }
- vec_free(mkdir_arg);
- vec_free(path);
-
- if (a->name[0] == '/')
- name_offset = 1;
-
- shm_name = format (0, "/%s-%s%c", a->root_path,
- &a->name[name_offset], 0);
+ u8 *path;
+ u8 *shm_name;
+ u8 *split_point;
+ u8 *mkdir_arg = 0;
+ int root_path_offset = 0;
+ int name_offset = 0;
+
+ if (a->root_path)
+ {
+ /* Tolerate present or absent slashes */
+ if (a->root_path[0] == '/')
+ root_path_offset++;
+
+ /* create the root_path under /dev/shm
+ iterate through path creating directories */
+
+ path = format (0, "/dev/shm/%s%c", &a->root_path[root_path_offset], 0);
+ split_point = path + 1;
+ vec_add1 (mkdir_arg, '-');
+
+ while (*split_point)
+ {
+ while (*split_point && *split_point != '/')
+ {
+ vec_add1 (mkdir_arg, *split_point);
+ split_point++;
+ }
+ vec_add1 (mkdir_arg, 0);
+
+ /* ready to descend another level */
+ mkdir_arg[vec_len (mkdir_arg) - 1] = '-';
+ split_point++;
+ }
+ vec_free (mkdir_arg);
+ vec_free (path);
+
+ if (a->name[0] == '/')
+ name_offset = 1;
+
+ shm_name = format (0, "/%s-%s%c", a->root_path,
+ &a->name[name_offset], 0);
}
- else
- shm_name = format (0, "%s%c", a->name, 0);
- return (shm_name);
+ else
+ shm_name = format (0, "%s%c", a->name, 0);
+ return (shm_name);
}
/*
* svm_map_region
*/
-void *svm_map_region (svm_map_region_args_t *a)
+void *
+svm_map_region (svm_map_region_args_t * a)
{
- int svm_fd;
- svm_region_t *rp;
- pthread_mutexattr_t attr;
- pthread_condattr_t cattr;
- int deadman=0;
- u8 junk = 0;
- void *oldheap;
- int overhead_space;
- int rv;
- uword data_base;
- int nbits, words, bit;
- int pid_holding_region_lock;
- u8 *shm_name;
- int dead_region_recovery = 0;
- int time_left;
- struct stat stat;
- struct timespec ts, tsrem;
-
- if (CLIB_DEBUG > 1)
- clib_warning ("[%d] map region %s", getpid(), a->name);
-
- ASSERT((a->size & ~(MMAP_PAGESIZE-1)) == a->size);
- ASSERT(a->name);
-
- shm_name = shm_name_from_svm_map_region_args (a);
-
- svm_fd = shm_open((char *) shm_name, O_RDWR | O_CREAT | O_EXCL, 0777);
-
- if (svm_fd >= 0) {
- if (fchmod (svm_fd, 0770) < 0)
- clib_unix_warning ("segment chmod");
- /* This turns out to fail harmlessly if the client starts first */
- if (fchown (svm_fd, a->uid, a->gid) < 0)
- clib_unix_warning ("segment chown [ok if client starts first]");
-
- vec_free(shm_name);
-
- if (lseek(svm_fd, a->size, SEEK_SET) == (off_t) -1) {
- clib_warning ("seek region size");
- close (svm_fd);
- return (0);
- }
- if (write(svm_fd, &junk, 1) != 1) {
- clib_warning ("set region size");
- close (svm_fd);
- return (0);
- }
-
- rp = mmap((void *)a->baseva, a->size,
- PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, svm_fd, 0);
-
- if (rp == (svm_region_t *) MAP_FAILED) {
- clib_unix_warning ("mmap create");
- close (svm_fd);
- return (0);
- }
- close(svm_fd);
- memset(rp, 0, sizeof(*rp));
-
- if (pthread_mutexattr_init(&attr))
- clib_unix_warning("mutexattr_init");
-
- if (pthread_mutexattr_setpshared(&attr, PTHREAD_PROCESS_SHARED))
- clib_unix_warning("mutexattr_setpshared");
-
- if (pthread_mutex_init(&rp->mutex, &attr))
- clib_unix_warning("mutex_init");
-
- if (pthread_mutexattr_destroy(&attr))
- clib_unix_warning("mutexattr_destroy");
-
- if (pthread_condattr_init(&cattr))
- clib_unix_warning("condattr_init");
-
- if (pthread_condattr_setpshared(&cattr, PTHREAD_PROCESS_SHARED))
- clib_unix_warning("condattr_setpshared");
-
- if (pthread_cond_init(&rp->condvar, &cattr))
- clib_unix_warning("cond_init");
-
- if(pthread_condattr_destroy(&cattr))
- clib_unix_warning("condattr_destroy");
-
- region_lock (rp, 1);
-
- rp->virtual_base = a->baseva;
- rp->virtual_size = a->size;
-
- rp->region_heap =
- mheap_alloc_with_flags ((void *)(a->baseva+MMAP_PAGESIZE),
- SVM_PVT_MHEAP_SIZE,
- MHEAP_FLAG_DISABLE_VM);
- oldheap = svm_push_pvt_heap(rp);
-
- rp->region_name = (char *)format (0, "%s%c", a->name, 0);
- vec_add1(rp->client_pids, getpid());
-
- nbits = rp->virtual_size / MMAP_PAGESIZE;
-
- ASSERT (nbits > 0);
- rp->bitmap_size = nbits;
- words = (nbits + BITS(uword)-1) / BITS(uword);
- vec_validate (rp->bitmap, words-1);
-
- overhead_space = MMAP_PAGESIZE /* header */ +
- SVM_PVT_MHEAP_SIZE;
-
- bit = 0;
- data_base = (uword)rp->virtual_base;
-
- if (a->flags & SVM_FLAGS_NODATA)
- rp->flags |= SVM_FLAGS_NEED_DATA_INIT;
-
- do {
- clib_bitmap_set_no_check (rp->bitmap, bit, 1);
- bit++;
- overhead_space -= MMAP_PAGESIZE;
- data_base += MMAP_PAGESIZE;
- } while (overhead_space > 0);
-
- rp->data_base = (void *)data_base;
-
- /*
- * Note: although the POSIX spec guarantees that only one
- * process enters this block, we have to play games
- * to hold off clients until e.g. the mutex is ready
- */
- rp->version = SVM_VERSION;
-
- /* setup the data portion of the region */
-
- rv = svm_data_region_create (a, rp);
- if (rv) {
- clib_warning ("data_region_create: %d", rv);
- }
-
- region_unlock(rp);
-
- svm_pop_heap(oldheap);
-
- return ((void *) rp);
- } else {
- svm_fd = shm_open((char *)shm_name, O_RDWR, 0777);
-
- vec_free(shm_name);
-
- if (svm_fd < 0) {
- perror("svm_region_map(mmap open)");
- return (0);
- }
-
- time_left = 20;
- while (1) {
- if (0 != fstat(svm_fd, &stat)) {
- clib_warning("fstat failed: %d", errno);
- close (svm_fd);
- return (0);
- }
- if (stat.st_size > 0) {
- break;
- }
- if (0 == time_left) {
- clib_warning("waiting for resize of shm file timed out");
- close (svm_fd);
- return (0);
- }
- ts.tv_sec = 0;
- ts.tv_nsec = 100000000;
- while (nanosleep(&ts, &tsrem) < 0)
- ts = tsrem;
- time_left--;
- }
-
- rp = mmap(0, MMAP_PAGESIZE,
- PROT_READ | PROT_WRITE, MAP_SHARED, svm_fd, 0);
-
- if (rp == (svm_region_t *) MAP_FAILED) {
- close(svm_fd);
- clib_warning("mmap");
- return (0);
- }
- /*
- * We lost the footrace to create this region; make sure
- * the winner has crossed the finish line.
- */
- while (rp->version == 0 && deadman++ < 5) {
- sleep(1);
- }
-
- /*
- * <bleep>-ed?
- */
- if (rp->version == 0) {
- clib_warning("rp->version %d not %d", rp->version,
- SVM_VERSION);
- close(svm_fd);
- munmap(rp, a->size);
- return (0);
- }
- /* Remap now that the region has been placed */
- a->baseva = rp->virtual_base;
- a->size = rp->virtual_size;
- munmap(rp, MMAP_PAGESIZE);
-
- rp = (void *) mmap ((void *)a->baseva, a->size,
- PROT_READ | PROT_WRITE,
- MAP_SHARED | MAP_FIXED, svm_fd, 0);
- if ((uword)rp == (uword)MAP_FAILED) {
- clib_unix_warning ("mmap");
- close (svm_fd);
- return (0);
- }
-
- if ((uword) rp != rp->virtual_base) {
- clib_warning("mmap botch");
- }
-
- /*
- * Try to fix the region mutex if it is held by
- * a dead process
- */
- pid_holding_region_lock = rp->mutex_owner_pid;
- if (pid_holding_region_lock &&
- kill (pid_holding_region_lock, 0) < 0) {
- clib_warning (
- "region %s mutex held by dead pid %d, tag %d, force unlock",
- rp->region_name, pid_holding_region_lock, rp->mutex_owner_tag);
- /* owner pid is nonexistent */
- rp->mutex.__data.__owner = 0;
- rp->mutex.__data.__lock = 0;
- dead_region_recovery = 1;
- }
-
- if (dead_region_recovery)
- clib_warning ("recovery: attempt to re-lock region");
-
- region_lock(rp, 2);
- oldheap = svm_push_pvt_heap (rp);
- vec_add1(rp->client_pids, getpid());
-
- if (dead_region_recovery)
- clib_warning ("recovery: attempt svm_data_region_map");
-
- rv = svm_data_region_map (a, rp);
- if (rv) {
- clib_warning ("data_region_map: %d", rv);
- }
-
- if (dead_region_recovery)
- clib_warning ("unlock and continue");
-
- region_unlock(rp);
-
- svm_pop_heap(oldheap);
-
- return ((void *) rp);
+ int svm_fd;
+ svm_region_t *rp;
+ pthread_mutexattr_t attr;
+ pthread_condattr_t cattr;
+ int deadman = 0;
+ u8 junk = 0;
+ void *oldheap;
+ int overhead_space;
+ int rv;
+ uword data_base;
+ int nbits, words, bit;
+ int pid_holding_region_lock;
+ u8 *shm_name;
+ int dead_region_recovery = 0;
+ int time_left;
+ struct stat stat;
+ struct timespec ts, tsrem;
+
+ if (CLIB_DEBUG > 1)
+ clib_warning ("[%d] map region %s", getpid (), a->name);
+
+ ASSERT ((a->size & ~(MMAP_PAGESIZE - 1)) == a->size);
+ ASSERT (a->name);
+
+ shm_name = shm_name_from_svm_map_region_args (a);
+
+ svm_fd = shm_open ((char *) shm_name, O_RDWR | O_CREAT | O_EXCL, 0777);
+
+ if (svm_fd >= 0)
+ {
+ if (fchmod (svm_fd, 0770) < 0)
+ clib_unix_warning ("segment chmod");
+ /* This turns out to fail harmlessly if the client starts first */
+ if (fchown (svm_fd, a->uid, a->gid) < 0)
+ clib_unix_warning ("segment chown [ok if client starts first]");
+
+ vec_free (shm_name);
+
+ if (lseek (svm_fd, a->size, SEEK_SET) == (off_t) - 1)
+ {
+ clib_warning ("seek region size");
+ close (svm_fd);
+ return (0);
+ }
+ if (write (svm_fd, &junk, 1) != 1)
+ {
+ clib_warning ("set region size");
+ close (svm_fd);
+ return (0);
+ }
+
+ rp = mmap ((void *) a->baseva, a->size,
+ PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, svm_fd, 0);
+
+ if (rp == (svm_region_t *) MAP_FAILED)
+ {
+ clib_unix_warning ("mmap create");
+ close (svm_fd);
+ return (0);
+ }
+ close (svm_fd);
+ memset (rp, 0, sizeof (*rp));
+
+ if (pthread_mutexattr_init (&attr))
+ clib_unix_warning ("mutexattr_init");
+
+ if (pthread_mutexattr_setpshared (&attr, PTHREAD_PROCESS_SHARED))
+ clib_unix_warning ("mutexattr_setpshared");
+
+ if (pthread_mutex_init (&rp->mutex, &attr))
+ clib_unix_warning ("mutex_init");
+
+ if (pthread_mutexattr_destroy (&attr))
+ clib_unix_warning ("mutexattr_destroy");
+
+ if (pthread_condattr_init (&cattr))
+ clib_unix_warning ("condattr_init");
+
+ if (pthread_condattr_setpshared (&cattr, PTHREAD_PROCESS_SHARED))
+ clib_unix_warning ("condattr_setpshared");
+
+ if (pthread_cond_init (&rp->condvar, &cattr))
+ clib_unix_warning ("cond_init");
+
+ if (pthread_condattr_destroy (&cattr))
+ clib_unix_warning ("condattr_destroy");
+
+ region_lock (rp, 1);
+
+ rp->virtual_base = a->baseva;
+ rp->virtual_size = a->size;
+
+ rp->region_heap =
+ mheap_alloc_with_flags ((void *) (a->baseva + MMAP_PAGESIZE),
+ SVM_PVT_MHEAP_SIZE, MHEAP_FLAG_DISABLE_VM);
+ oldheap = svm_push_pvt_heap (rp);
+
+ rp->region_name = (char *) format (0, "%s%c", a->name, 0);
+ vec_add1 (rp->client_pids, getpid ());
+
+ nbits = rp->virtual_size / MMAP_PAGESIZE;
+
+ ASSERT (nbits > 0);
+ rp->bitmap_size = nbits;
+ words = (nbits + BITS (uword) - 1) / BITS (uword);
+ vec_validate (rp->bitmap, words - 1);
+
+ overhead_space = MMAP_PAGESIZE /* header */ +
+ SVM_PVT_MHEAP_SIZE;
+
+ bit = 0;
+ data_base = (uword) rp->virtual_base;
+
+ if (a->flags & SVM_FLAGS_NODATA)
+ rp->flags |= SVM_FLAGS_NEED_DATA_INIT;
+
+ do
+ {
+ clib_bitmap_set_no_check (rp->bitmap, bit, 1);
+ bit++;
+ overhead_space -= MMAP_PAGESIZE;
+ data_base += MMAP_PAGESIZE;
+ }
+ while (overhead_space > 0);
+
+ rp->data_base = (void *) data_base;
+
+ /*
+ * Note: although the POSIX spec guarantees that only one
+ * process enters this block, we have to play games
+ * to hold off clients until e.g. the mutex is ready
+ */
+ rp->version = SVM_VERSION;
+
+ /* setup the data portion of the region */
+
+ rv = svm_data_region_create (a, rp);
+ if (rv)
+ {
+ clib_warning ("data_region_create: %d", rv);
+ }
+
+ region_unlock (rp);
+
+ svm_pop_heap (oldheap);
+
+ return ((void *) rp);
+ }
+ else
+ {
+ svm_fd = shm_open ((char *) shm_name, O_RDWR, 0777);
+
+ vec_free (shm_name);
+
+ if (svm_fd < 0)
+ {
+ perror ("svm_region_map(mmap open)");
+ return (0);
+ }
+
+ time_left = 20;
+ while (1)
+ {
+ if (0 != fstat (svm_fd, &stat))
+ {
+ clib_warning ("fstat failed: %d", errno);
+ close (svm_fd);
+ return (0);
+ }
+ if (stat.st_size > 0)
+ {
+ break;
+ }
+ if (0 == time_left)
+ {
+ clib_warning ("waiting for resize of shm file timed out");
+ close (svm_fd);
+ return (0);
+ }
+ ts.tv_sec = 0;
+ ts.tv_nsec = 100000000;
+ while (nanosleep (&ts, &tsrem) < 0)
+ ts = tsrem;
+ time_left--;
+ }
+
+ rp = mmap (0, MMAP_PAGESIZE,
+ PROT_READ | PROT_WRITE, MAP_SHARED, svm_fd, 0);
+
+ if (rp == (svm_region_t *) MAP_FAILED)
+ {
+ close (svm_fd);
+ clib_warning ("mmap");
+ return (0);
+ }
+ /*
+ * We lost the footrace to create this region; make sure
+ * the winner has crossed the finish line.
+ */
+ while (rp->version == 0 && deadman++ < 5)
+ {
+ sleep (1);
+ }
+
+ /*
+ * <bleep>-ed?
+ */
+ if (rp->version == 0)
+ {
+ clib_warning ("rp->version %d not %d", rp->version, SVM_VERSION);
+ close (svm_fd);
+ munmap (rp, a->size);
+ return (0);
+ }
+ /* Remap now that the region has been placed */
+ a->baseva = rp->virtual_base;
+ a->size = rp->virtual_size;
+ munmap (rp, MMAP_PAGESIZE);
+
+ rp = (void *) mmap ((void *) a->baseva, a->size,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED | MAP_FIXED, svm_fd, 0);
+ if ((uword) rp == (uword) MAP_FAILED)
+ {
+ clib_unix_warning ("mmap");
+ close (svm_fd);
+ return (0);
+ }
+
+ if ((uword) rp != rp->virtual_base)
+ {
+ clib_warning ("mmap botch");
+ }
+
+ /*
+ * Try to fix the region mutex if it is held by
+ * a dead process
+ */
+ pid_holding_region_lock = rp->mutex_owner_pid;
+ if (pid_holding_region_lock && kill (pid_holding_region_lock, 0) < 0)
+ {
+ clib_warning
+ ("region %s mutex held by dead pid %d, tag %d, force unlock",
+ rp->region_name, pid_holding_region_lock, rp->mutex_owner_tag);
+ /* owner pid is nonexistent */
+ rp->mutex.__data.__owner = 0;
+ rp->mutex.__data.__lock = 0;
+ dead_region_recovery = 1;
+ }
+
+ if (dead_region_recovery)
+ clib_warning ("recovery: attempt to re-lock region");
+
+ region_lock (rp, 2);
+ oldheap = svm_push_pvt_heap (rp);
+ vec_add1 (rp->client_pids, getpid ());
+
+ if (dead_region_recovery)
+ clib_warning ("recovery: attempt svm_data_region_map");
+
+ rv = svm_data_region_map (a, rp);
+ if (rv)
+ {
+ clib_warning ("data_region_map: %d", rv);
+ }
+
+ if (dead_region_recovery)
+ clib_warning ("unlock and continue");
+
+ region_unlock (rp);
+
+ svm_pop_heap (oldheap);
+
+ return ((void *) rp);
}
- return 0; /* NOTREACHED */
+ return 0; /* NOTREACHED */
}
-static void svm_mutex_cleanup (void)
+static void
+svm_mutex_cleanup (void)
{
- int i;
- for (i = 0; i < nheld; i++) {
- pthread_mutex_unlock (mutexes_held[i]);
+ int i;
+ for (i = 0; i < nheld; i++)
+ {
+ pthread_mutex_unlock (mutexes_held[i]);
}
}
-static void svm_region_init_internal (char *root_path, int uid, int gid)
+static void
+svm_region_init_internal (char *root_path, int uid, int gid)
{
- svm_region_t *rp;
- svm_map_region_args_t _a, *a=&_a;
- u64 ticks = clib_cpu_time_now();
- uword randomize_baseva;
-
- /* guard against klutz calls */
- if (root_rp)
- return;
-
- root_rp_refcount++;
-
- atexit(svm_mutex_cleanup);
-
- /* Randomize the shared-VM base at init time */
- if (MMAP_PAGESIZE <= (4<<10))
- randomize_baseva = (ticks & 15) * MMAP_PAGESIZE;
- else
- randomize_baseva = (ticks & 3) * MMAP_PAGESIZE;
-
- memset (a, 0, sizeof (*a));
- a->root_path = root_path;
- a->name = SVM_GLOBAL_REGION_NAME;
- a->baseva = SVM_GLOBAL_REGION_BASEVA + randomize_baseva;
- a->size = SVM_GLOBAL_REGION_SIZE;
- a->flags = SVM_FLAGS_NODATA;
- a->uid = uid;
- a->gid = gid;
-
- rp = svm_map_region (a);
- ASSERT(rp);
-
- region_lock(rp, 3);
-
- /* Set up the main region data structures */
- if (rp->flags & SVM_FLAGS_NEED_DATA_INIT) {
- svm_main_region_t *mp = 0;
- void *oldheap;
-
- rp->flags &= ~(SVM_FLAGS_NEED_DATA_INIT);
-
- oldheap = svm_push_pvt_heap (rp);
- vec_validate (mp, 0);
- mp->name_hash = hash_create_string (0, sizeof(uword));
- mp->root_path = root_path
- ? format (0, "%s%c", root_path, 0) : 0 ;
- rp->data_base = mp;
- svm_pop_heap (oldheap);
+ svm_region_t *rp;
+ svm_map_region_args_t _a, *a = &_a;
+ u64 ticks = clib_cpu_time_now ();
+ uword randomize_baseva;
+
+ /* guard against klutz calls */
+ if (root_rp)
+ return;
+
+ root_rp_refcount++;
+
+ atexit (svm_mutex_cleanup);
+
+ /* Randomize the shared-VM base at init time */
+ if (MMAP_PAGESIZE <= (4 << 10))
+ randomize_baseva = (ticks & 15) * MMAP_PAGESIZE;
+ else
+ randomize_baseva = (ticks & 3) * MMAP_PAGESIZE;
+
+ memset (a, 0, sizeof (*a));
+ a->root_path = root_path;
+ a->name = SVM_GLOBAL_REGION_NAME;
+ a->baseva = SVM_GLOBAL_REGION_BASEVA + randomize_baseva;
+ a->size = SVM_GLOBAL_REGION_SIZE;
+ a->flags = SVM_FLAGS_NODATA;
+ a->uid = uid;
+ a->gid = gid;
+
+ rp = svm_map_region (a);
+ ASSERT (rp);
+
+ region_lock (rp, 3);
+
+ /* Set up the main region data structures */
+ if (rp->flags & SVM_FLAGS_NEED_DATA_INIT)
+ {
+ svm_main_region_t *mp = 0;
+ void *oldheap;
+
+ rp->flags &= ~(SVM_FLAGS_NEED_DATA_INIT);
+
+ oldheap = svm_push_pvt_heap (rp);
+ vec_validate (mp, 0);
+ mp->name_hash = hash_create_string (0, sizeof (uword));
+ mp->root_path = root_path ? format (0, "%s%c", root_path, 0) : 0;
+ rp->data_base = mp;
+ svm_pop_heap (oldheap);
}
- region_unlock(rp);
- root_rp = rp;
+ region_unlock (rp);
+ root_rp = rp;
}
-void svm_region_init (void)
+void
+svm_region_init (void)
{
- svm_region_init_internal (0, 0 /* uid */, 0 /* gid */);
+ svm_region_init_internal (0, 0 /* uid */ , 0 /* gid */ );
}
-void svm_region_init_chroot (char *root_path)
+void
+svm_region_init_chroot (char *root_path)
{
- svm_region_init_internal (root_path, 0 /* uid */, 0 /* gid */);
+ svm_region_init_internal (root_path, 0 /* uid */ , 0 /* gid */ );
}
-void svm_region_init_chroot_uid_gid (char *root_path, int uid, int gid)
+void
+svm_region_init_chroot_uid_gid (char *root_path, int uid, int gid)
{
- svm_region_init_internal (root_path, uid, gid);
+ svm_region_init_internal (root_path, uid, gid);
}
-void *svm_region_find_or_create (svm_map_region_args_t *a)
+void *
+svm_region_find_or_create (svm_map_region_args_t * a)
{
- svm_main_region_t *mp;
- svm_region_t *rp;
- uword need_nbits;
- int index, i;
- void *oldheap;
- uword *p;
- u8 *name;
- svm_subregion_t *subp;
-
- ASSERT(root_rp);
-
- a->size += MMAP_PAGESIZE + SVM_PVT_MHEAP_SIZE;
- a->size = rnd_pagesize(a->size);
-
- region_lock (root_rp, 4);
- oldheap = svm_push_pvt_heap(root_rp);
- mp = root_rp->data_base;
-
- ASSERT(mp);
-
- /* Map the named region from the correct chroot environment */
- a->root_path = (char *) mp->root_path;
-
- /*
- * See if this region is already known. If it is, we're
- * almost done...
- */
- p = hash_get_mem (mp->name_hash, a->name);
-
- if (p) {
- rp = svm_map_region (a);
- region_unlock(root_rp);
- svm_pop_heap (oldheap);
- return rp;
+ svm_main_region_t *mp;
+ svm_region_t *rp;
+ uword need_nbits;
+ int index, i;
+ void *oldheap;
+ uword *p;
+ u8 *name;
+ svm_subregion_t *subp;
+
+ ASSERT (root_rp);
+
+ a->size += MMAP_PAGESIZE + SVM_PVT_MHEAP_SIZE;
+ a->size = rnd_pagesize (a->size);
+
+ region_lock (root_rp, 4);
+ oldheap = svm_push_pvt_heap (root_rp);
+ mp = root_rp->data_base;
+
+ ASSERT (mp);
+
+ /* Map the named region from the correct chroot environment */
+ a->root_path = (char *) mp->root_path;
+
+ /*
+ * See if this region is already known. If it is, we're
+ * almost done...
+ */
+ p = hash_get_mem (mp->name_hash, a->name);
+
+ if (p)
+ {
+ rp = svm_map_region (a);
+ region_unlock (root_rp);
+ svm_pop_heap (oldheap);
+ return rp;
}
-
- /* Create the region. */
- ASSERT((a->size & ~(MMAP_PAGESIZE-1)) == a->size);
-
- need_nbits = a->size / MMAP_PAGESIZE;
-
- index = 1; /* $$$ fixme, figure out how many bit to really skip */
-
- /*
- * Scan the virtual space allocation bitmap, looking for a large
- * enough chunk
- */
- do {
- if (clib_bitmap_get_no_check(root_rp->bitmap, index) == 0) {
- for (i = 0; i < (need_nbits-1); i++) {
- if (clib_bitmap_get_no_check(root_rp->bitmap,
- index+i) == 1) {
- index = index + i;
- goto next;
- }
- }
- break;
- }
- index++;
+
+ /* Create the region. */
+ ASSERT ((a->size & ~(MMAP_PAGESIZE - 1)) == a->size);
+
+ need_nbits = a->size / MMAP_PAGESIZE;
+
+ index = 1; /* $$$ fixme, figure out how many bit to really skip */
+
+ /*
+ * Scan the virtual space allocation bitmap, looking for a large
+ * enough chunk
+ */
+ do
+ {
+ if (clib_bitmap_get_no_check (root_rp->bitmap, index) == 0)
+ {
+ for (i = 0; i < (need_nbits - 1); i++)
+ {
+ if (clib_bitmap_get_no_check (root_rp->bitmap, index + i) == 1)
+ {
+ index = index + i;
+ goto next;
+ }
+ }
+ break;
+ }
+ index++;
next:;
- } while (index < root_rp->bitmap_size);
-
- /* Completely out of VM? */
- if (index >= root_rp->bitmap_size) {
- clib_warning("region %s: not enough VM to allocate 0x%x",
- root_rp->region_name, a->size);
- svm_pop_heap (oldheap);
- region_unlock (root_rp);
- return 0;
}
-
- /*
- * Mark virtual space allocated
- */
+ while (index < root_rp->bitmap_size);
+
+ /* Completely out of VM? */
+ if (index >= root_rp->bitmap_size)
+ {
+ clib_warning ("region %s: not enough VM to allocate 0x%x",
+ root_rp->region_name, a->size);
+ svm_pop_heap (oldheap);
+ region_unlock (root_rp);
+ return 0;
+ }
+
+ /*
+ * Mark virtual space allocated
+ */
#if CLIB_DEBUG > 1
- clib_warning ("set %d bits at index %d", need_nbits, index);
+ clib_warning ("set %d bits at index %d", need_nbits, index);
#endif
- for (i = 0; i < need_nbits; i++) {
- clib_bitmap_set_no_check (root_rp->bitmap, index+i, 1);
+ for (i = 0; i < need_nbits; i++)
+ {
+ clib_bitmap_set_no_check (root_rp->bitmap, index + i, 1);
}
- /* Place this region where it goes... */
- a->baseva = root_rp->virtual_base + index*MMAP_PAGESIZE;
+ /* Place this region where it goes... */
+ a->baseva = root_rp->virtual_base + index * MMAP_PAGESIZE;
+
+ rp = svm_map_region (a);
- rp = svm_map_region (a);
-
- pool_get (mp->subregions, subp);
- name = format (0, "%s%c", a->name, 0);
- subp->subregion_name = name;
+ pool_get (mp->subregions, subp);
+ name = format (0, "%s%c", a->name, 0);
+ subp->subregion_name = name;
- hash_set_mem (mp->name_hash, name, subp - mp->subregions);
+ hash_set_mem (mp->name_hash, name, subp - mp->subregions);
- svm_pop_heap (oldheap);
+ svm_pop_heap (oldheap);
- region_unlock (root_rp);
+ region_unlock (root_rp);
- return (rp);
+ return (rp);
}
/*
* The root region mutex guarantees atomicity with respect to
* a new region client showing up at the wrong moment.
*/
-void svm_region_unmap (void *rp_arg)
+void
+svm_region_unmap (void *rp_arg)
{
- int i, mypid = getpid();
- int nclients_left;
- void *oldheap;
- uword virtual_base, virtual_size;
- svm_region_t *rp = rp_arg;
- char *name;
-
- /*
- * If we take a signal while holding one or more shared-memory
- * mutexes, we may end up back here from an otherwise
- * benign exit handler. Bail out to avoid a recursive
- * mutex screw-up.
- */
- if (nheld)
- return;
-
- ASSERT(rp);
- ASSERT(root_rp);
-
- if (CLIB_DEBUG > 1)
- clib_warning ("[%d] unmap region %s", getpid(), rp->region_name);
-
- region_lock (root_rp, 5);
- region_lock (rp, 6);
-
- oldheap = svm_push_pvt_heap (rp); /* nb vec_delete() in the loop */
-
- /* Remove the caller from the list of mappers */
- for (i = 0; i < vec_len(rp->client_pids); i++) {
- if (rp->client_pids[i] == mypid) {
- vec_delete (rp->client_pids, 1, i);
- goto found;
- }
+ int i, mypid = getpid ();
+ int nclients_left;
+ void *oldheap;
+ uword virtual_base, virtual_size;
+ svm_region_t *rp = rp_arg;
+ char *name;
+
+ /*
+ * If we take a signal while holding one or more shared-memory
+ * mutexes, we may end up back here from an otherwise
+ * benign exit handler. Bail out to avoid a recursive
+ * mutex screw-up.
+ */
+ if (nheld)
+ return;
+
+ ASSERT (rp);
+ ASSERT (root_rp);
+
+ if (CLIB_DEBUG > 1)
+ clib_warning ("[%d] unmap region %s", getpid (), rp->region_name);
+
+ region_lock (root_rp, 5);
+ region_lock (rp, 6);
+
+ oldheap = svm_push_pvt_heap (rp); /* nb vec_delete() in the loop */
+
+ /* Remove the caller from the list of mappers */
+ for (i = 0; i < vec_len (rp->client_pids); i++)
+ {
+ if (rp->client_pids[i] == mypid)
+ {
+ vec_delete (rp->client_pids, 1, i);
+ goto found;
+ }
}
- clib_warning("pid %d AWOL", mypid);
+ clib_warning ("pid %d AWOL", mypid);
- found:
+found:
- svm_pop_heap (oldheap);
+ svm_pop_heap (oldheap);
- nclients_left = vec_len(rp->client_pids);
- virtual_base = rp->virtual_base;
- virtual_size = rp->virtual_size;
+ nclients_left = vec_len (rp->client_pids);
+ virtual_base = rp->virtual_base;
+ virtual_size = rp->virtual_size;
- if (nclients_left == 0) {
- int index, nbits, i;
- svm_main_region_t *mp;
- uword *p;
- svm_subregion_t *subp;
+ if (nclients_left == 0)
+ {
+ int index, nbits, i;
+ svm_main_region_t *mp;
+ uword *p;
+ svm_subregion_t *subp;
- /* Kill the region, last guy on his way out */
+ /* Kill the region, last guy on his way out */
- oldheap = svm_push_pvt_heap (root_rp);
- name = vec_dup (rp->region_name);
+ oldheap = svm_push_pvt_heap (root_rp);
+ name = vec_dup (rp->region_name);
- virtual_base = rp->virtual_base;
- virtual_size = rp->virtual_size;
+ virtual_base = rp->virtual_base;
+ virtual_size = rp->virtual_size;
- /* Figure out which bits to clear in the root region bitmap */
- index = (virtual_base - root_rp->virtual_base)
- / MMAP_PAGESIZE;
+ /* Figure out which bits to clear in the root region bitmap */
+ index = (virtual_base - root_rp->virtual_base) / MMAP_PAGESIZE;
- nbits = (virtual_size + MMAP_PAGESIZE - 1)
- / MMAP_PAGESIZE;
+ nbits = (virtual_size + MMAP_PAGESIZE - 1) / MMAP_PAGESIZE;
#if CLIB_DEBUG > 1
- clib_warning ("clear %d bits at index %d", nbits, index);
+ clib_warning ("clear %d bits at index %d", nbits, index);
#endif
- /* Give back the allocated VM */
- for (i = 0; i < nbits; i++) {
- clib_bitmap_set_no_check (root_rp->bitmap, index+i, 0);
- }
-
- mp = root_rp->data_base;
-
- p = hash_get_mem (mp->name_hash, name);
-
- /* Better never happen ... */
- if (p == NULL) {
- region_unlock (rp);
- region_unlock (root_rp);
- svm_pop_heap (oldheap);
- clib_warning ("Region name '%s' not found?", name);
- return;
- }
-
- /* Remove from the root region subregion pool */
- subp = mp->subregions + p[0];
- pool_put (mp->subregions, subp);
-
- hash_unset_mem (mp->name_hash, name);
-
- vec_free(name);
-
- region_unlock (rp);
- shm_unlink(rp->region_name);
- munmap ((void *)virtual_base, virtual_size);
- region_unlock (root_rp);
- svm_pop_heap (oldheap);
- return;
+ /* Give back the allocated VM */
+ for (i = 0; i < nbits; i++)
+ {
+ clib_bitmap_set_no_check (root_rp->bitmap, index + i, 0);
+ }
+
+ mp = root_rp->data_base;
+
+ p = hash_get_mem (mp->name_hash, name);
+
+ /* Better never happen ... */
+ if (p == NULL)
+ {
+ region_unlock (rp);
+ region_unlock (root_rp);
+ svm_pop_heap (oldheap);
+ clib_warning ("Region name '%s' not found?", name);
+ return;
+ }
+
+ /* Remove from the root region subregion pool */
+ subp = mp->subregions + p[0];
+ pool_put (mp->subregions, subp);
+
+ hash_unset_mem (mp->name_hash, name);
+
+ vec_free (name);
+
+ region_unlock (rp);
+ shm_unlink (rp->region_name);
+ munmap ((void *) virtual_base, virtual_size);
+ region_unlock (root_rp);
+ svm_pop_heap (oldheap);
+ return;
}
- region_unlock(rp);
- region_unlock(root_rp);
+ region_unlock (rp);
+ region_unlock (root_rp);
- munmap ((void *)virtual_base, virtual_size);
+ munmap ((void *) virtual_base, virtual_size);
}
/*
* svm_region_exit
* There is no clean way to unlink the
- * root region when all clients go away,
+ * root region when all clients go away,
* so remove the pid entry and call it a day.
- */
-void svm_region_exit ()
+ */
+void
+svm_region_exit ()
{
- void *oldheap;
- int i, mypid = getpid();
- uword virtual_base, virtual_size;
-
- /* It felt so nice we did it twice... */
- if (root_rp == 0)
- return;
-
- if (--root_rp_refcount > 0)
- return;
-
- /*
- * If we take a signal while holding one or more shared-memory
- * mutexes, we may end up back here from an otherwise
- * benign exit handler. Bail out to avoid a recursive
- * mutex screw-up.
- */
- if (nheld)
- return;
-
- region_lock(root_rp, 7);
- oldheap = svm_push_pvt_heap (root_rp);
-
- virtual_base = root_rp->virtual_base;
- virtual_size = root_rp->virtual_size;
-
- for (i = 0; i < vec_len(root_rp->client_pids); i++) {
- if (root_rp->client_pids[i] == mypid) {
- vec_delete (root_rp->client_pids, 1, i);
- goto found;
- }
+ void *oldheap;
+ int i, mypid = getpid ();
+ uword virtual_base, virtual_size;
+
+ /* It felt so nice we did it twice... */
+ if (root_rp == 0)
+ return;
+
+ if (--root_rp_refcount > 0)
+ return;
+
+ /*
+ * If we take a signal while holding one or more shared-memory
+ * mutexes, we may end up back here from an otherwise
+ * benign exit handler. Bail out to avoid a recursive
+ * mutex screw-up.
+ */
+ if (nheld)
+ return;
+
+ region_lock (root_rp, 7);
+ oldheap = svm_push_pvt_heap (root_rp);
+
+ virtual_base = root_rp->virtual_base;
+ virtual_size = root_rp->virtual_size;
+
+ for (i = 0; i < vec_len (root_rp->client_pids); i++)
+ {
+ if (root_rp->client_pids[i] == mypid)
+ {
+ vec_delete (root_rp->client_pids, 1, i);
+ goto found;
+ }
}
- clib_warning("pid %d AWOL", mypid);
+ clib_warning ("pid %d AWOL", mypid);
- found:
+found:
- region_unlock(root_rp);
- svm_pop_heap (oldheap);
+ region_unlock (root_rp);
+ svm_pop_heap (oldheap);
- root_rp = 0;
- munmap ((void *)virtual_base, virtual_size);
+ root_rp = 0;
+ munmap ((void *) virtual_base, virtual_size);
}
-void svm_client_scan_this_region_nolock (svm_region_t *rp)
+void
+svm_client_scan_this_region_nolock (svm_region_t * rp)
{
- int j;
- int mypid = getpid();
- void *oldheap;
-
- for (j = 0; j < vec_len(rp->client_pids); j++) {
- if (mypid == rp->client_pids[j])
- continue;
- if (rp->client_pids[j] && (kill (rp->client_pids[j], 0) < 0)) {
- clib_warning ("%s: cleanup ghost pid %d",
- rp->region_name, rp->client_pids[j]);
- /* nb: client vec in rp->region_heap */
- oldheap = svm_push_pvt_heap (rp);
- vec_delete (rp->client_pids, 1, j);
- j--;
- svm_pop_heap (oldheap);
- }
+ int j;
+ int mypid = getpid ();
+ void *oldheap;
+
+ for (j = 0; j < vec_len (rp->client_pids); j++)
+ {
+ if (mypid == rp->client_pids[j])
+ continue;
+ if (rp->client_pids[j] && (kill (rp->client_pids[j], 0) < 0))
+ {
+ clib_warning ("%s: cleanup ghost pid %d",
+ rp->region_name, rp->client_pids[j]);
+ /* nb: client vec in rp->region_heap */
+ oldheap = svm_push_pvt_heap (rp);
+ vec_delete (rp->client_pids, 1, j);
+ j--;
+ svm_pop_heap (oldheap);
+ }
}
}
-/*
+/*
* Scan svm regions for dead clients
*/
-void svm_client_scan(char *root_path)
+void
+svm_client_scan (char *root_path)
{
- int i, j;
- svm_main_region_t *mp;
- svm_map_region_args_t *a = 0;
- svm_region_t *root_rp;
- svm_region_t *rp;
- svm_subregion_t *subp;
- u8 *name=0;
- u8 ** svm_names=0;
- void *oldheap;
- int mypid = getpid();
-
- vec_validate (a, 0);
-
- svm_region_init_chroot(root_path);
-
- root_rp = svm_get_root_rp();
-
- pthread_mutex_lock (&root_rp->mutex);
-
- mp = root_rp->data_base;
-
- for (j = 0; j < vec_len (root_rp->client_pids); j++) {
- if (mypid == root_rp->client_pids[j])
- continue;
- if (root_rp->client_pids[j]
- && (kill (root_rp->client_pids[j], 0) < 0)) {
- clib_warning ("%s: cleanup ghost pid %d",
- root_rp->region_name, root_rp->client_pids[j]);
- /* nb: client vec in root_rp->region_heap */
- oldheap = svm_push_pvt_heap (root_rp);
- vec_delete (root_rp->client_pids, 1, j);
- j--;
- svm_pop_heap (oldheap);
- }
+ int i, j;
+ svm_main_region_t *mp;
+ svm_map_region_args_t *a = 0;
+ svm_region_t *root_rp;
+ svm_region_t *rp;
+ svm_subregion_t *subp;
+ u8 *name = 0;
+ u8 **svm_names = 0;
+ void *oldheap;
+ int mypid = getpid ();
+
+ vec_validate (a, 0);
+
+ svm_region_init_chroot (root_path);
+
+ root_rp = svm_get_root_rp ();
+
+ pthread_mutex_lock (&root_rp->mutex);
+
+ mp = root_rp->data_base;
+
+ for (j = 0; j < vec_len (root_rp->client_pids); j++)
+ {
+ if (mypid == root_rp->client_pids[j])
+ continue;
+ if (root_rp->client_pids[j] && (kill (root_rp->client_pids[j], 0) < 0))
+ {
+ clib_warning ("%s: cleanup ghost pid %d",
+ root_rp->region_name, root_rp->client_pids[j]);
+ /* nb: client vec in root_rp->region_heap */
+ oldheap = svm_push_pvt_heap (root_rp);
+ vec_delete (root_rp->client_pids, 1, j);
+ j--;
+ svm_pop_heap (oldheap);
+ }
}
- /*
- * Snapshoot names, can't hold root rp mutex across
- * find_or_create.
- */
- pool_foreach (subp, mp->subregions, ({
- name = vec_dup (subp->subregion_name);
- vec_add1(svm_names, name);
- }));
-
- pthread_mutex_unlock (&root_rp->mutex);
-
- for (i = 0; i < vec_len(svm_names); i++) {
- vec_validate(a, 0);
- a->root_path = root_path;
- a->name = (char *) svm_names[i];
- rp = svm_region_find_or_create (a);
- if (rp) {
- pthread_mutex_lock (&rp->mutex);
-
- svm_client_scan_this_region_nolock (rp);
-
- pthread_mutex_unlock (&rp->mutex);
- svm_region_unmap (rp);
- vec_free(svm_names[i]);
- }
- vec_free (a);
+ /*
+ * Snapshoot names, can't hold root rp mutex across
+ * find_or_create.
+ */
+ /* *INDENT-OFF* */
+ pool_foreach (subp, mp->subregions, ({
+ name = vec_dup (subp->subregion_name);
+ vec_add1(svm_names, name);
+ }));
+ /* *INDENT-ON* */
+
+ pthread_mutex_unlock (&root_rp->mutex);
+
+ for (i = 0; i < vec_len (svm_names); i++)
+ {
+ vec_validate (a, 0);
+ a->root_path = root_path;
+ a->name = (char *) svm_names[i];
+ rp = svm_region_find_or_create (a);
+ if (rp)
+ {
+ pthread_mutex_lock (&rp->mutex);
+
+ svm_client_scan_this_region_nolock (rp);
+
+ pthread_mutex_unlock (&rp->mutex);
+ svm_region_unmap (rp);
+ vec_free (svm_names[i]);
+ }
+ vec_free (a);
}
- vec_free(svm_names);
+ vec_free (svm_names);
- svm_region_exit ();
+ svm_region_exit ();
- vec_free (a);
+ vec_free (a);
}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
-/*
+/*
*------------------------------------------------------------------
- * svm.h - shared VM allocation, mmap(...MAP_FIXED...)
+ * svm.h - shared VM allocation, mmap(...MAP_FIXED...)
* brain police
*
* Copyright (c) 2009 Cisco and/or its affiliates.
#define MMAP_PAGESIZE (clib_mem_get_page_size())
-#define SVM_VERSION ((1<<16) | 1) /* set to declare region ready. */
-
-#define SVM_FLAGS_MHEAP (1<<0) /* region contains an mheap */
-#define SVM_FLAGS_FILE (1<<1) /* region backed by one or more files */
-#define SVM_FLAGS_NODATA (1<<2) /* region will be further subdivided */
-#define SVM_FLAGS_NEED_DATA_INIT (1<<3)
-
-#define SVM_PVT_MHEAP_SIZE (128<<10) /* region's private mheap (128k) */
-
-typedef struct svm_region_ {
- volatile uword version;
- pthread_mutex_t mutex;
- pthread_cond_t condvar;
- int mutex_owner_pid; /* in case of trouble */
- int mutex_owner_tag;
- uword flags;
- uword virtual_base; /* base of the region object */
- uword virtual_size;
- void *region_heap;
- void *data_base; /* data portion base address */
- void *data_heap; /* data heap, if any */
- volatile void *user_ctx; /* user context pointer */
- /* stuff allocated in the region's heap */
- uword bitmap_size; /* nbits in virtual alloc bitmap */
- uword *bitmap; /* the bitmap */
- char *region_name;
- char *backing_file;
- char **filenames;
- uword *client_pids;
- /* pad */
-
- /* next page:
- * (64K) clib heap for the region itself
- *
- * data_base -> whatever is in this region
- */
+#define SVM_VERSION ((1<<16) | 1) /* set to declare region ready. */
+
+#define SVM_FLAGS_MHEAP (1<<0) /* region contains an mheap */
+#define SVM_FLAGS_FILE (1<<1) /* region backed by one or more files */
+#define SVM_FLAGS_NODATA (1<<2) /* region will be further subdivided */
+#define SVM_FLAGS_NEED_DATA_INIT (1<<3)
+
+#define SVM_PVT_MHEAP_SIZE (128<<10) /* region's private mheap (128k) */
+
+typedef struct svm_region_
+{
+ volatile uword version;
+ pthread_mutex_t mutex;
+ pthread_cond_t condvar;
+ int mutex_owner_pid; /* in case of trouble */
+ int mutex_owner_tag;
+ uword flags;
+ uword virtual_base; /* base of the region object */
+ uword virtual_size;
+ void *region_heap;
+ void *data_base; /* data portion base address */
+ void *data_heap; /* data heap, if any */
+ volatile void *user_ctx; /* user context pointer */
+ /* stuff allocated in the region's heap */
+ uword bitmap_size; /* nbits in virtual alloc bitmap */
+ uword *bitmap; /* the bitmap */
+ char *region_name;
+ char *backing_file;
+ char **filenames;
+ uword *client_pids;
+ /* pad */
+
+ /* next page:
+ * (64K) clib heap for the region itself
+ *
+ * data_base -> whatever is in this region
+ */
} svm_region_t;
-typedef struct svm_map_region_args_ {
- char *root_path; /* NULL means use the truly global arena */
- char *name;
- uword baseva;
- uword size;
- uword flags;
- char *backing_file;
- uword backing_mmap_size;
- /* uid, gid to own the svm region(s) */
- int uid;
- int gid;
+typedef struct svm_map_region_args_
+{
+ char *root_path; /* NULL means use the truly global arena */
+ char *name;
+ uword baseva;
+ uword size;
+ uword flags;
+ char *backing_file;
+ uword backing_mmap_size;
+ /* uid, gid to own the svm region(s) */
+ int uid;
+ int gid;
} svm_map_region_args_t;
/*
- * Memory shared across all router instances. Packet buffers, etc
- * Base should be "out of the way," and size should be big enough to
+ * Memory shared across all router instances. Packet buffers, etc
+ * Base should be "out of the way," and size should be big enough to
* cover everything we plan to put here.
*/
#define SVM_GLOBAL_REGION_BASEVA 0x30000000
-#define SVM_GLOBAL_REGION_SIZE (64<<20)
+#define SVM_GLOBAL_REGION_SIZE (64<<20)
#define SVM_GLOBAL_REGION_NAME "/global_vm"
/*
- * Memory shared across individual router instances.
+ * Memory shared across individual router instances.
*/
#define SVM_OVERLAY_REGION_BASEVA \
(SVM_GLOBAL_REGION_BASEVA + SVM_GLOBAL_REGION_SIZE)
-#define SVM_OVERLAY_REGION_SIZE (1<<20)
+#define SVM_OVERLAY_REGION_SIZE (1<<20)
#define SVM_OVERLAY_REGION_BASENAME "/overlay_vm"
-typedef struct {
- u8 *subregion_name;
+typedef struct
+{
+ u8 *subregion_name;
} svm_subregion_t;
-typedef struct {
- svm_subregion_t *subregions; /* subregion pool */
- uword *name_hash;
- u8 *root_path;
+typedef struct
+{
+ svm_subregion_t *subregions; /* subregion pool */
+ uword *name_hash;
+ u8 *root_path;
} svm_main_region_t;
-void *svm_region_find_or_create (svm_map_region_args_t *a);
-void svm_region_init(void);
-void svm_region_init_chroot(char *root_path);
-void svm_region_init_chroot_uid_gid(char *root_path, int uid, int gid);
+void *svm_region_find_or_create (svm_map_region_args_t * a);
+void svm_region_init (void);
+void svm_region_init_chroot (char *root_path);
+void svm_region_init_chroot_uid_gid (char *root_path, int uid, int gid);
void svm_region_exit (void);
-void svm_region_unmap(void *rp_arg);
+void svm_region_unmap (void *rp_arg);
void svm_client_scan (char *root_path);
-void svm_client_scan_this_region_nolock (svm_region_t *rp);
-u8 *shm_name_from_svm_map_region_args (svm_map_region_args_t *a);
+void svm_client_scan_this_region_nolock (svm_region_t * rp);
+u8 *shm_name_from_svm_map_region_args (svm_map_region_args_t * a);
-static inline void *svm_mem_alloc (svm_region_t *rp, uword size)
+static inline void *
+svm_mem_alloc (svm_region_t * rp, uword size)
{
- u8 *oldheap;
- ASSERT(rp->flags & SVM_FLAGS_MHEAP);
- u8 *rv;
-
- pthread_mutex_lock(&rp->mutex);
- oldheap = clib_mem_set_heap(rp->data_heap);
- rv = clib_mem_alloc (size);
- clib_mem_set_heap(oldheap);
- pthread_mutex_unlock(&rp->mutex);
- return (rv);
+ u8 *oldheap;
+ ASSERT (rp->flags & SVM_FLAGS_MHEAP);
+ u8 *rv;
+
+ pthread_mutex_lock (&rp->mutex);
+ oldheap = clib_mem_set_heap (rp->data_heap);
+ rv = clib_mem_alloc (size);
+ clib_mem_set_heap (oldheap);
+ pthread_mutex_unlock (&rp->mutex);
+ return (rv);
}
-static inline void *svm_mem_alloc_aligned_at_offset (svm_region_t *rp,
- uword size,
- uword align,
- uword offset)
+static inline void *
+svm_mem_alloc_aligned_at_offset (svm_region_t * rp,
+ uword size, uword align, uword offset)
{
- u8 *oldheap;
- ASSERT(rp->flags & SVM_FLAGS_MHEAP);
- u8 *rv;
-
- pthread_mutex_lock(&rp->mutex);
- oldheap = clib_mem_set_heap(rp->data_heap);
- rv = clib_mem_alloc_aligned_at_offset (size, align, offset);
- clib_mem_set_heap(oldheap);
- pthread_mutex_unlock(&rp->mutex);
- return (rv);
+ u8 *oldheap;
+ ASSERT (rp->flags & SVM_FLAGS_MHEAP);
+ u8 *rv;
+
+ pthread_mutex_lock (&rp->mutex);
+ oldheap = clib_mem_set_heap (rp->data_heap);
+ rv = clib_mem_alloc_aligned_at_offset (size, align, offset);
+ clib_mem_set_heap (oldheap);
+ pthread_mutex_unlock (&rp->mutex);
+ return (rv);
}
-static inline void svm_mem_free (svm_region_t *rp, void *ptr)
+static inline void
+svm_mem_free (svm_region_t * rp, void *ptr)
{
- u8 *oldheap;
- ASSERT(rp->flags & SVM_FLAGS_MHEAP);
+ u8 *oldheap;
+ ASSERT (rp->flags & SVM_FLAGS_MHEAP);
- pthread_mutex_lock(&rp->mutex);
- oldheap = clib_mem_set_heap(rp->data_heap);
- clib_mem_free (ptr);
- clib_mem_set_heap(oldheap);
- pthread_mutex_unlock(&rp->mutex);
+ pthread_mutex_lock (&rp->mutex);
+ oldheap = clib_mem_set_heap (rp->data_heap);
+ clib_mem_free (ptr);
+ clib_mem_set_heap (oldheap);
+ pthread_mutex_unlock (&rp->mutex);
}
-static inline void *svm_push_pvt_heap (svm_region_t *rp)
+static inline void *
+svm_push_pvt_heap (svm_region_t * rp)
{
- u8 *oldheap;
- oldheap = clib_mem_set_heap(rp->region_heap);
- return ((void *) oldheap);
+ u8 *oldheap;
+ oldheap = clib_mem_set_heap (rp->region_heap);
+ return ((void *) oldheap);
}
-static inline void *svm_push_data_heap (svm_region_t *rp)
+static inline void *
+svm_push_data_heap (svm_region_t * rp)
{
- u8 *oldheap;
- oldheap = clib_mem_set_heap(rp->data_heap);
- return ((void *) oldheap);
+ u8 *oldheap;
+ oldheap = clib_mem_set_heap (rp->data_heap);
+ return ((void *) oldheap);
}
-static inline void svm_pop_heap (void *oldheap)
+static inline void
+svm_pop_heap (void *oldheap)
{
- clib_mem_set_heap(oldheap);
+ clib_mem_set_heap (oldheap);
}
-u8 * format_svm_region (u8 * s, va_list * args);
+u8 *format_svm_region (u8 * s, va_list * args);
svm_region_t *svm_get_root_rp (void);
#endif /* __included_svm_h__ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-/*
+/*
*------------------------------------------------------------------
* svm_test.c -- brain police
*------------------------------------------------------------------
#include "svm.h"
-int main (int argc, char **argv)
+int
+main (int argc, char **argv)
{
- svm_region_t *root_rp, *rp;
- svm_map_region_args_t *a = 0;
+ svm_region_t *root_rp, *rp;
+ svm_map_region_args_t *a = 0;
- vec_validate (a, 0);
+ vec_validate (a, 0);
- root_rp = svm_region_init();
+ root_rp = svm_region_init ();
- ASSERT (root_rp);
+ ASSERT (root_rp);
- a->name = "/qvnet";
- a->size = (4<<10);
+ a->name = "/qvnet";
+ a->size = (4 << 10);
- rp = svm_region_find_or_create (root_rp, a);
+ rp = svm_region_find_or_create (root_rp, a);
- ASSERT (rp);
+ ASSERT (rp);
- *((u32 *)rp->data_base) = 0xdeadbeef;
- svm_region_unmap (root_rp, rp);
+ *((u32 *) rp->data_base) = 0xdeadbeef;
+ svm_region_unmap (root_rp, rp);
- fformat(stdout, "exiting...\n");
+ fformat (stdout, "exiting...\n");
- exit (0);
+ exit (0);
}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
-/*
+/*
*------------------------------------------------------------------
* svmdb.c -- simple shared memory database
*
#include "svmdb.h"
-static void local_set_variable_nolock (svmdb_client_t *client,
- svmdb_namespace_t namespace,
- u8 * var, u8 * val, u32 elsize);
+static void local_set_variable_nolock (svmdb_client_t * client,
+ svmdb_namespace_t namespace,
+ u8 * var, u8 * val, u32 elsize);
-always_inline void region_lock(svm_region_t *rp, int tag)
+always_inline void
+region_lock (svm_region_t * rp, int tag)
{
- pthread_mutex_lock(&rp->mutex);
+ pthread_mutex_lock (&rp->mutex);
#ifdef MUTEX_DEBUG
- rp->mutex_owner_pid = getpid();
- rp->mutex_owner_tag = tag;
-#endif
+ rp->mutex_owner_pid = getpid ();
+ rp->mutex_owner_tag = tag;
+#endif
}
-always_inline void region_unlock(svm_region_t *rp)
+always_inline void
+region_unlock (svm_region_t * rp)
{
#ifdef MUTEX_DEBUG
- rp->mutex_owner_pid = 0;
- rp->mutex_owner_tag = 0;
-#endif
- pthread_mutex_unlock(&rp->mutex);
+ rp->mutex_owner_pid = 0;
+ rp->mutex_owner_tag = 0;
+#endif
+ pthread_mutex_unlock (&rp->mutex);
}
-static svmdb_client_t *svmdb_map_internal (char *root_path, uword size)
+static svmdb_client_t *
+svmdb_map_internal (char *root_path, uword size)
{
- svmdb_client_t *client = 0;
- svm_map_region_args_t *a = 0;
- svm_region_t *db_rp;
- void *oldheap;
- svmdb_shm_hdr_t *hp = 0;
-
- vec_validate (client, 0);
- vec_validate (a, 0);
-
- svm_region_init_chroot(root_path);
-
- a->root_path = root_path;
- a->name = "/db";
- a->size = size ? size : SVMDB_DEFAULT_SIZE;
- a->flags = SVM_FLAGS_MHEAP;
-
- db_rp = client->db_rp = svm_region_find_or_create (a);
-
- ASSERT(db_rp);
-
- vec_free (a);
-
- region_lock (client->db_rp, 10);
- /* Has someone else set up the shared-memory variable table? */
- if (db_rp->user_ctx) {
- client->shm = (void *) db_rp->user_ctx;
- client->pid = getpid();
- region_unlock (client->db_rp);
- ASSERT (client->shm->version == SVMDB_SHM_VERSION);
- return (client);
+ svmdb_client_t *client = 0;
+ svm_map_region_args_t *a = 0;
+ svm_region_t *db_rp;
+ void *oldheap;
+ svmdb_shm_hdr_t *hp = 0;
+
+ vec_validate (client, 0);
+ vec_validate (a, 0);
+
+ svm_region_init_chroot (root_path);
+
+ a->root_path = root_path;
+ a->name = "/db";
+ a->size = size ? size : SVMDB_DEFAULT_SIZE;
+ a->flags = SVM_FLAGS_MHEAP;
+
+ db_rp = client->db_rp = svm_region_find_or_create (a);
+
+ ASSERT (db_rp);
+
+ vec_free (a);
+
+ region_lock (client->db_rp, 10);
+ /* Has someone else set up the shared-memory variable table? */
+ if (db_rp->user_ctx)
+ {
+ client->shm = (void *) db_rp->user_ctx;
+ client->pid = getpid ();
+ region_unlock (client->db_rp);
+ ASSERT (client->shm->version == SVMDB_SHM_VERSION);
+ return (client);
}
- /* Nope, it's our problem... */
-
- /* Add a bogus client (pid=0) so the svm won't be deallocated */
- oldheap = svm_push_pvt_heap (db_rp);
- vec_add1(client->db_rp->client_pids, 0);
- svm_pop_heap (oldheap);
-
- oldheap = svm_push_data_heap (db_rp);
-
- vec_validate(hp, 0);
- hp->version = SVMDB_SHM_VERSION;
- hp->namespaces[SVMDB_NAMESPACE_STRING]
- = hash_create_string(0, sizeof(uword));
- hp->namespaces[SVMDB_NAMESPACE_VEC]
- = hash_create_string(0, sizeof(uword));
-
- db_rp->user_ctx = hp;
- client->shm = hp;
-
- svm_pop_heap (oldheap);
- region_unlock (client->db_rp);
- client->pid = getpid();
-
- return (client);
+ /* Nope, it's our problem... */
+
+ /* Add a bogus client (pid=0) so the svm won't be deallocated */
+ oldheap = svm_push_pvt_heap (db_rp);
+ vec_add1 (client->db_rp->client_pids, 0);
+ svm_pop_heap (oldheap);
+
+ oldheap = svm_push_data_heap (db_rp);
+
+ vec_validate (hp, 0);
+ hp->version = SVMDB_SHM_VERSION;
+ hp->namespaces[SVMDB_NAMESPACE_STRING]
+ = hash_create_string (0, sizeof (uword));
+ hp->namespaces[SVMDB_NAMESPACE_VEC]
+ = hash_create_string (0, sizeof (uword));
+
+ db_rp->user_ctx = hp;
+ client->shm = hp;
+
+ svm_pop_heap (oldheap);
+ region_unlock (client->db_rp);
+ client->pid = getpid ();
+
+ return (client);
}
-svmdb_client_t *svmdb_map (void)
+
+svmdb_client_t *
+svmdb_map (void)
{
- return svmdb_map_internal (0, 0);
+ return svmdb_map_internal (0, 0);
}
-svmdb_client_t *svmdb_map_size (uword size)
+svmdb_client_t *
+svmdb_map_size (uword size)
{
- return svmdb_map_internal (0, size);
+ return svmdb_map_internal (0, size);
}
-svmdb_client_t *svmdb_map_chroot (char *root_path)
+svmdb_client_t *
+svmdb_map_chroot (char *root_path)
{
- return svmdb_map_internal (root_path, 0);
+ return svmdb_map_internal (root_path, 0);
}
-svmdb_client_t *svmdb_map_chroot_size (char *root_path, uword size)
+svmdb_client_t *
+svmdb_map_chroot_size (char *root_path, uword size)
{
- return svmdb_map_internal (root_path, size);
+ return svmdb_map_internal (root_path, size);
}
-void svmdb_unmap (svmdb_client_t *client)
+void
+svmdb_unmap (svmdb_client_t * client)
{
- ASSERT(client);
+ ASSERT (client);
- if (! svm_get_root_rp())
- return;
+ if (!svm_get_root_rp ())
+ return;
- svm_region_unmap ((void *) client->db_rp);
- svm_region_exit ();
- vec_free(client);
+ svm_region_unmap ((void *) client->db_rp);
+ svm_region_exit ();
+ vec_free (client);
}
-static void notify_value (svmdb_value_t * v, svmdb_action_t a)
+static void
+notify_value (svmdb_value_t * v, svmdb_action_t a)
{
- int i;
- int rv;
- union sigval sv;
- u32 value;
- u32 *dead_registrations = 0;
-
- svmdb_notify_t *np;
-
- for (i = 0; i < vec_len (v->notifications); i++) {
- np = vec_elt_at_index (v->notifications, i);
- if (np->action == a) {
- value = (np->action<<28) | (np->opaque);
- sv.sival_ptr = (void *)(uword)value;
- do {
- rv = 0;
- if (sigqueue (np->pid, np->signum, sv) == 0)
- break;
- rv = errno;
- } while (rv == EAGAIN);
- if (rv == 0)
- continue;
- vec_add1 (dead_registrations, i);
- }
+ int i;
+ int rv;
+ union sigval sv;
+ u32 value;
+ u32 *dead_registrations = 0;
+
+ svmdb_notify_t *np;
+
+ for (i = 0; i < vec_len (v->notifications); i++)
+ {
+ np = vec_elt_at_index (v->notifications, i);
+ if (np->action == a)
+ {
+ value = (np->action << 28) | (np->opaque);
+ sv.sival_ptr = (void *) (uword) value;
+ do
+ {
+ rv = 0;
+ if (sigqueue (np->pid, np->signum, sv) == 0)
+ break;
+ rv = errno;
+ }
+ while (rv == EAGAIN);
+ if (rv == 0)
+ continue;
+ vec_add1 (dead_registrations, i);
+ }
}
- for (i = 0; i < vec_len (dead_registrations); i++) {
- np = vec_elt_at_index (v->notifications, dead_registrations[i]);
- clib_warning ("dead reg pid %d sig %d action %d opaque %x",
- np->pid, np->signum, np->action, np->opaque);
- vec_delete (v->notifications, 1, dead_registrations[i]);
+ for (i = 0; i < vec_len (dead_registrations); i++)
+ {
+ np = vec_elt_at_index (v->notifications, dead_registrations[i]);
+ clib_warning ("dead reg pid %d sig %d action %d opaque %x",
+ np->pid, np->signum, np->action, np->opaque);
+ vec_delete (v->notifications, 1, dead_registrations[i]);
}
- vec_free (dead_registrations);
+ vec_free (dead_registrations);
}
-int svmdb_local_add_del_notification (svmdb_client_t *client,
- svmdb_notification_args_t *a)
+int
+svmdb_local_add_del_notification (svmdb_client_t * client,
+ svmdb_notification_args_t * a)
{
- uword *h;
- void *oldheap;
- hash_pair_t *hp;
- svmdb_shm_hdr_t * shm;
- u8 *dummy_value = 0;
- svmdb_value_t *value;
- svmdb_notify_t *np;
- int i;
- int rv = 0;
-
- ASSERT (a->elsize);
-
- region_lock (client->db_rp, 18);
- shm = client->shm;
- oldheap = svm_push_data_heap (client->db_rp);
-
- h = shm->namespaces[a->nspace];
-
- hp = hash_get_pair_mem (h, a->var);
- if (hp == 0) {
- local_set_variable_nolock (client, a->nspace, (u8 *)a->var,
- dummy_value, a->elsize);
- /* might have moved */
- h = shm->namespaces[a->nspace];
- hp = hash_get_pair_mem (h, a->var);
- ASSERT(hp);
+ uword *h;
+ void *oldheap;
+ hash_pair_t *hp;
+ svmdb_shm_hdr_t *shm;
+ u8 *dummy_value = 0;
+ svmdb_value_t *value;
+ svmdb_notify_t *np;
+ int i;
+ int rv = 0;
+
+ ASSERT (a->elsize);
+
+ region_lock (client->db_rp, 18);
+ shm = client->shm;
+ oldheap = svm_push_data_heap (client->db_rp);
+
+ h = shm->namespaces[a->nspace];
+
+ hp = hash_get_pair_mem (h, a->var);
+ if (hp == 0)
+ {
+ local_set_variable_nolock (client, a->nspace, (u8 *) a->var,
+ dummy_value, a->elsize);
+ /* might have moved */
+ h = shm->namespaces[a->nspace];
+ hp = hash_get_pair_mem (h, a->var);
+ ASSERT (hp);
}
-
- value = pool_elt_at_index (shm->values, hp->value[0]);
-
- for (i = 0; i < vec_len (value->notifications); i++) {
- np = vec_elt_at_index (value->notifications, i);
- if ((np->pid == client->pid)
- && (np->signum == a->signum)
- && (np->action == a->action)
- && (np->opaque == a->opaque)) {
- if (a->add_del == 0 /* delete */) {
- vec_delete (value->notifications, 1, i);
- goto out;
- } else { /* add */
- clib_warning (
- "%s: ignore dup reg pid %d signum %d action %d opaque %x",
- a->var, client->pid, a->signum, a->action, a->opaque);
- rv = -2;
- goto out;
- }
- }
+
+ value = pool_elt_at_index (shm->values, hp->value[0]);
+
+ for (i = 0; i < vec_len (value->notifications); i++)
+ {
+ np = vec_elt_at_index (value->notifications, i);
+ if ((np->pid == client->pid)
+ && (np->signum == a->signum)
+ && (np->action == a->action) && (np->opaque == a->opaque))
+ {
+ if (a->add_del == 0 /* delete */ )
+ {
+ vec_delete (value->notifications, 1, i);
+ goto out;
+ }
+ else
+ { /* add */
+ clib_warning
+ ("%s: ignore dup reg pid %d signum %d action %d opaque %x",
+ a->var, client->pid, a->signum, a->action, a->opaque);
+ rv = -2;
+ goto out;
+ }
+ }
}
- if (a->add_del == 0) {
- rv = -3;
- goto out;
+ if (a->add_del == 0)
+ {
+ rv = -3;
+ goto out;
}
-
- vec_add2 (value->notifications, np, 1);
- np->pid = client->pid;
- np->signum = a->signum;
- np->action = a->action;
- np->opaque = a->opaque;
+
+ vec_add2 (value->notifications, np, 1);
+ np->pid = client->pid;
+ np->signum = a->signum;
+ np->action = a->action;
+ np->opaque = a->opaque;
out:
- svm_pop_heap(oldheap);
- region_unlock (client->db_rp);
- return rv;
+ svm_pop_heap (oldheap);
+ region_unlock (client->db_rp);
+ return rv;
}
-static void local_unset_variable_nolock (svmdb_client_t *client,
- svmdb_namespace_t namespace,
- char * var)
+static void
+local_unset_variable_nolock (svmdb_client_t * client,
+ svmdb_namespace_t namespace, char *var)
{
- uword *h;
- svmdb_value_t *oldvalue;
- hash_pair_t *hp;
-
- h = client->shm->namespaces[namespace];
- hp = hash_get_pair_mem (h, var);
- if (hp) {
- oldvalue = pool_elt_at_index (client->shm->values, hp->value[0]);
- if (vec_len (oldvalue->notifications))
- notify_value (oldvalue, SVMDB_ACTION_UNSET);
- /* zero length value means unset */
- _vec_len (oldvalue->value) = 0;
+ uword *h;
+ svmdb_value_t *oldvalue;
+ hash_pair_t *hp;
+
+ h = client->shm->namespaces[namespace];
+ hp = hash_get_pair_mem (h, var);
+ if (hp)
+ {
+ oldvalue = pool_elt_at_index (client->shm->values, hp->value[0]);
+ if (vec_len (oldvalue->notifications))
+ notify_value (oldvalue, SVMDB_ACTION_UNSET);
+ /* zero length value means unset */
+ _vec_len (oldvalue->value) = 0;
}
- client->shm->namespaces[namespace] = h;
+ client->shm->namespaces[namespace] = h;
}
-void svmdb_local_unset_string_variable (svmdb_client_t *client, char *var)
+void
+svmdb_local_unset_string_variable (svmdb_client_t * client, char *var)
{
- void *oldheap;
+ void *oldheap;
- region_lock (client->db_rp, 11);
- oldheap = svm_push_data_heap (client->db_rp);
- local_unset_variable_nolock (client, SVMDB_NAMESPACE_STRING, var);
- svm_pop_heap(oldheap);
- region_unlock (client->db_rp);
+ region_lock (client->db_rp, 11);
+ oldheap = svm_push_data_heap (client->db_rp);
+ local_unset_variable_nolock (client, SVMDB_NAMESPACE_STRING, var);
+ svm_pop_heap (oldheap);
+ region_unlock (client->db_rp);
}
-static void local_set_variable_nolock (svmdb_client_t *client,
- svmdb_namespace_t namespace,
- u8 * var, u8 * val, u32 elsize)
+static void
+local_set_variable_nolock (svmdb_client_t * client,
+ svmdb_namespace_t namespace,
+ u8 * var, u8 * val, u32 elsize)
{
- uword *h;
- hash_pair_t *hp;
- u8 *name;
- svmdb_shm_hdr_t * shm;
-
- shm = client->shm;
- h = shm->namespaces[namespace];
- hp = hash_get_pair_mem (h, var);
- if (hp) {
- svmdb_value_t * oldvalue;
- oldvalue = pool_elt_at_index (client->shm->values, hp->value[0]);
- vec_alloc (oldvalue->value, vec_len(val)*elsize);
- clib_memcpy (oldvalue->value, val, vec_len(val)*elsize);
- _vec_len (oldvalue->value) = vec_len(val);
- notify_value (oldvalue, SVMDB_ACTION_SET);
- } else {
- svmdb_value_t * newvalue;
- pool_get (shm->values, newvalue);
- memset (newvalue, 0, sizeof (*newvalue));
- newvalue->elsize = elsize;
- vec_alloc (newvalue->value, vec_len(val)*elsize);
- clib_memcpy (newvalue->value, val, vec_len(val)*elsize);
- _vec_len (newvalue->value) = vec_len(val);
- name = format (0, "%s%c", var, 0);
- hash_set_mem (h, name, newvalue - shm->values);
+ uword *h;
+ hash_pair_t *hp;
+ u8 *name;
+ svmdb_shm_hdr_t *shm;
+
+ shm = client->shm;
+ h = shm->namespaces[namespace];
+ hp = hash_get_pair_mem (h, var);
+ if (hp)
+ {
+ svmdb_value_t *oldvalue;
+ oldvalue = pool_elt_at_index (client->shm->values, hp->value[0]);
+ vec_alloc (oldvalue->value, vec_len (val) * elsize);
+ clib_memcpy (oldvalue->value, val, vec_len (val) * elsize);
+ _vec_len (oldvalue->value) = vec_len (val);
+ notify_value (oldvalue, SVMDB_ACTION_SET);
+ }
+ else
+ {
+ svmdb_value_t *newvalue;
+ pool_get (shm->values, newvalue);
+ memset (newvalue, 0, sizeof (*newvalue));
+ newvalue->elsize = elsize;
+ vec_alloc (newvalue->value, vec_len (val) * elsize);
+ clib_memcpy (newvalue->value, val, vec_len (val) * elsize);
+ _vec_len (newvalue->value) = vec_len (val);
+ name = format (0, "%s%c", var, 0);
+ hash_set_mem (h, name, newvalue - shm->values);
}
- shm->namespaces[namespace] = h;
+ shm->namespaces[namespace] = h;
}
-void svmdb_local_set_string_variable (svmdb_client_t *client,
- char *var, char *val)
+void
+svmdb_local_set_string_variable (svmdb_client_t * client,
+ char *var, char *val)
{
- void *oldheap;
+ void *oldheap;
- region_lock (client->db_rp, 12);
- oldheap = svm_push_data_heap (client->db_rp);
+ region_lock (client->db_rp, 12);
+ oldheap = svm_push_data_heap (client->db_rp);
- local_unset_variable_nolock (client, SVMDB_NAMESPACE_STRING, var);
+ local_unset_variable_nolock (client, SVMDB_NAMESPACE_STRING, var);
- local_set_variable_nolock (client, SVMDB_NAMESPACE_STRING,
- (u8 *) var, (u8 *) val, 1 /* elsize */);
- svm_pop_heap(oldheap);
- region_unlock (client->db_rp);
+ local_set_variable_nolock (client, SVMDB_NAMESPACE_STRING,
+ (u8 *) var, (u8 *) val, 1 /* elsize */ );
+ svm_pop_heap (oldheap);
+ region_unlock (client->db_rp);
}
-static u8 * local_get_variable_nolock (svmdb_client_t *client,
- svmdb_namespace_t namespace,
- u8 * var)
+static u8 *
+local_get_variable_nolock (svmdb_client_t * client,
+ svmdb_namespace_t namespace, u8 * var)
{
- uword *h;
- uword *p;
- svmdb_shm_hdr_t * shm;
- svmdb_value_t *oldvalue;
-
- shm = client->shm;
- h = shm->namespaces[namespace];
- p = hash_get_mem (h, var);
- if (p) {
- oldvalue = pool_elt_at_index (shm->values, p[0]);
- notify_value (oldvalue, SVMDB_ACTION_GET);
- return (oldvalue->value);
+ uword *h;
+ uword *p;
+ svmdb_shm_hdr_t *shm;
+ svmdb_value_t *oldvalue;
+
+ shm = client->shm;
+ h = shm->namespaces[namespace];
+ p = hash_get_mem (h, var);
+ if (p)
+ {
+ oldvalue = pool_elt_at_index (shm->values, p[0]);
+ notify_value (oldvalue, SVMDB_ACTION_GET);
+ return (oldvalue->value);
}
- return 0;
+ return 0;
}
-void *svmdb_local_get_variable_reference (svmdb_client_t *client,
- svmdb_namespace_t namespace,
- char *var)
+void *
+svmdb_local_get_variable_reference (svmdb_client_t * client,
+ svmdb_namespace_t namespace, char *var)
{
- u8 *rv;
+ u8 *rv;
- region_lock (client->db_rp, 19);
- rv = local_get_variable_nolock (client, namespace, (u8 *)var);
- region_unlock (client->db_rp);
- return (void *)rv;
+ region_lock (client->db_rp, 19);
+ rv = local_get_variable_nolock (client, namespace, (u8 *) var);
+ region_unlock (client->db_rp);
+ return (void *) rv;
}
-char *svmdb_local_get_string_variable (svmdb_client_t *client, char *var)
+char *
+svmdb_local_get_string_variable (svmdb_client_t * client, char *var)
{
- u8 *rv = 0;
+ u8 *rv = 0;
- region_lock (client->db_rp, 13);
- rv = local_get_variable_nolock (client, SVMDB_NAMESPACE_STRING, (u8 *) var);
+ region_lock (client->db_rp, 13);
+ rv = local_get_variable_nolock (client, SVMDB_NAMESPACE_STRING, (u8 *) var);
- if (rv && vec_len (rv)) {
- rv = format (0, "%s", rv);
- vec_add1(rv, 0);
+ if (rv && vec_len (rv))
+ {
+ rv = format (0, "%s", rv);
+ vec_add1 (rv, 0);
}
- region_unlock (client->db_rp);
- return ((char *) rv);
+ region_unlock (client->db_rp);
+ return ((char *) rv);
}
-void svmdb_local_dump_strings (svmdb_client_t *client)
+void
+svmdb_local_dump_strings (svmdb_client_t * client)
{
- uword *h;
- u8 *key;
- u32 value;
- svmdb_shm_hdr_t *shm = client->shm;
-
- region_lock (client->db_rp, 14);
-
- h = client->shm->namespaces [SVMDB_NAMESPACE_STRING];
-
- hash_foreach_mem(key, value, h,
- ({
- svmdb_value_t *v = pool_elt_at_index (shm->values, value);
-
- fformat(stdout, "%s: %s\n", key,
- vec_len(v->value) ? v->value : (u8 *)"(nil)");
- }));
- region_unlock (client->db_rp);
+ uword *h;
+ u8 *key;
+ u32 value;
+ svmdb_shm_hdr_t *shm = client->shm;
+
+ region_lock (client->db_rp, 14);
+
+ h = client->shm->namespaces[SVMDB_NAMESPACE_STRING];
+
+ /* *INDENT-OFF* */
+ hash_foreach_mem(key, value, h,
+ ({
+ svmdb_value_t *v = pool_elt_at_index (shm->values, value);
+
+ fformat(stdout, "%s: %s\n", key,
+ vec_len(v->value) ? v->value : (u8 *)"(nil)");
+ }));
+ /* *INDENT-ON* */
+ region_unlock (client->db_rp);
}
-void svmdb_local_unset_vec_variable (svmdb_client_t *client, char *var)
+void
+svmdb_local_unset_vec_variable (svmdb_client_t * client, char *var)
{
- void *oldheap;
+ void *oldheap;
- region_lock (client->db_rp, 15);
- oldheap = svm_push_data_heap (client->db_rp);
- local_unset_variable_nolock (client, SVMDB_NAMESPACE_VEC, var);
- svm_pop_heap(oldheap);
- region_unlock (client->db_rp);
+ region_lock (client->db_rp, 15);
+ oldheap = svm_push_data_heap (client->db_rp);
+ local_unset_variable_nolock (client, SVMDB_NAMESPACE_VEC, var);
+ svm_pop_heap (oldheap);
+ region_unlock (client->db_rp);
}
-void svmdb_local_set_vec_variable (svmdb_client_t *client,
- char *var, void *val_arg, u32 elsize)
+void
+svmdb_local_set_vec_variable (svmdb_client_t * client,
+ char *var, void *val_arg, u32 elsize)
{
- u8 *val = (u8 *)val_arg;
- void *oldheap;
+ u8 *val = (u8 *) val_arg;
+ void *oldheap;
- region_lock (client->db_rp, 16);
- oldheap = svm_push_data_heap (client->db_rp);
+ region_lock (client->db_rp, 16);
+ oldheap = svm_push_data_heap (client->db_rp);
- local_unset_variable_nolock (client, SVMDB_NAMESPACE_VEC, var);
- local_set_variable_nolock (client, SVMDB_NAMESPACE_VEC, (u8 *) var,
- val, elsize);
+ local_unset_variable_nolock (client, SVMDB_NAMESPACE_VEC, var);
+ local_set_variable_nolock (client, SVMDB_NAMESPACE_VEC, (u8 *) var,
+ val, elsize);
- svm_pop_heap(oldheap);
- region_unlock (client->db_rp);
+ svm_pop_heap (oldheap);
+ region_unlock (client->db_rp);
}
-void *svmdb_local_get_vec_variable (svmdb_client_t *client, char *var,
- u32 elsize)
+void *
+svmdb_local_get_vec_variable (svmdb_client_t * client, char *var, u32 elsize)
{
- u8 *rv = 0;
- u8 *copy = 0;
+ u8 *rv = 0;
+ u8 *copy = 0;
- region_lock (client->db_rp, 17);
+ region_lock (client->db_rp, 17);
- rv = local_get_variable_nolock (client, SVMDB_NAMESPACE_VEC, (u8 *) var);
+ rv = local_get_variable_nolock (client, SVMDB_NAMESPACE_VEC, (u8 *) var);
- if (rv && vec_len(rv)) {
- /* Make a copy in process-local memory */
- vec_alloc (copy, vec_len(rv)*elsize);
- clib_memcpy (copy, rv, vec_len(rv)*elsize);
- _vec_len(copy) = vec_len(rv);
- region_unlock (client->db_rp);
- return (copy);
+ if (rv && vec_len (rv))
+ {
+ /* Make a copy in process-local memory */
+ vec_alloc (copy, vec_len (rv) * elsize);
+ clib_memcpy (copy, rv, vec_len (rv) * elsize);
+ _vec_len (copy) = vec_len (rv);
+ region_unlock (client->db_rp);
+ return (copy);
}
- region_unlock (client->db_rp);
- return (0);
+ region_unlock (client->db_rp);
+ return (0);
}
-void svmdb_local_dump_vecs (svmdb_client_t *client)
+void
+svmdb_local_dump_vecs (svmdb_client_t * client)
{
- uword *h;
- u8 *key;
- u32 value;
- svmdb_shm_hdr_t *shm;
-
- region_lock (client->db_rp, 17);
- shm = client->shm;
+ uword *h;
+ u8 *key;
+ u32 value;
+ svmdb_shm_hdr_t *shm;
+
+ region_lock (client->db_rp, 17);
+ shm = client->shm;
+
+ h = client->shm->namespaces[SVMDB_NAMESPACE_VEC];
+
+ /* *INDENT-OFF* */
+ hash_foreach_mem(key, value, h,
+ ({
+ svmdb_value_t *v = pool_elt_at_index (shm->values, value);
+ (void) fformat(stdout, "%s:\n %U (%.2f)\n", key,
+ format_hex_bytes, v->value,
+ vec_len(v->value)*v->elsize, ((f64 *)(v->value))[0]);
+ }));
+ /* *INDENT-ON* */
+
+ region_unlock (client->db_rp);
+}
- h = client->shm->namespaces [SVMDB_NAMESPACE_VEC];
+void *
+svmdb_local_find_or_add_vec_variable (svmdb_client_t * client,
+ char *var, u32 nbytes)
+{
+ void *oldheap;
+ u8 *rv = 0;
- hash_foreach_mem(key, value, h,
- ({
- svmdb_value_t *v = pool_elt_at_index (shm->values, value);
- (void) fformat(stdout, "%s:\n %U (%.2f)\n", key,
- format_hex_bytes, v->value,
- vec_len(v->value)*v->elsize, ((f64 *)(v->value))[0]);
- }));
+ region_lock (client->db_rp, 18);
+ oldheap = svm_push_data_heap (client->db_rp);
- region_unlock (client->db_rp);
-}
+ rv = local_get_variable_nolock (client, SVMDB_NAMESPACE_VEC, (u8 *) var);
-void *svmdb_local_find_or_add_vec_variable (svmdb_client_t *client,
- char *var, u32 nbytes)
-{
- void *oldheap;
- u8 *rv = 0;
-
- region_lock (client->db_rp, 18);
- oldheap = svm_push_data_heap (client->db_rp);
-
- rv = local_get_variable_nolock (client, SVMDB_NAMESPACE_VEC, (u8 *)var);
-
- if (rv) {
- goto out;
- } else {
- uword *h;
- u8 *name;
- svmdb_shm_hdr_t * shm;
- svmdb_value_t * newvalue;
-
- shm = client->shm;
- h = shm->namespaces[SVMDB_NAMESPACE_VEC];
-
- pool_get (shm->values, newvalue);
- memset (newvalue, 0, sizeof (*newvalue));
- newvalue->elsize = 1;
- vec_alloc (newvalue->value, nbytes);
- _vec_len (newvalue->value) = nbytes;
- name = format (0, "%s%c", var, 0);
- hash_set_mem (h, name, newvalue - shm->values);
- shm->namespaces[SVMDB_NAMESPACE_VEC] = h;
- rv = newvalue->value;
+ if (rv)
+ {
+ goto out;
+ }
+ else
+ {
+ uword *h;
+ u8 *name;
+ svmdb_shm_hdr_t *shm;
+ svmdb_value_t *newvalue;
+
+ shm = client->shm;
+ h = shm->namespaces[SVMDB_NAMESPACE_VEC];
+
+ pool_get (shm->values, newvalue);
+ memset (newvalue, 0, sizeof (*newvalue));
+ newvalue->elsize = 1;
+ vec_alloc (newvalue->value, nbytes);
+ _vec_len (newvalue->value) = nbytes;
+ name = format (0, "%s%c", var, 0);
+ hash_set_mem (h, name, newvalue - shm->values);
+ shm->namespaces[SVMDB_NAMESPACE_VEC] = h;
+ rv = newvalue->value;
}
out:
- svm_pop_heap(oldheap);
- region_unlock (client->db_rp);
- return (rv);
+ svm_pop_heap (oldheap);
+ region_unlock (client->db_rp);
+ return (rv);
}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
-/*
+/*
*------------------------------------------------------------------
* svmdb.h - shared VM database
*
#include "svm.h"
-typedef enum {
- SVMDB_ACTION_ILLEGAL=0,
- SVMDB_ACTION_GET, /* not clear why anyone would care */
- SVMDB_ACTION_SET,
- SVMDB_ACTION_UNSET,
+typedef enum
+{
+ SVMDB_ACTION_ILLEGAL = 0,
+ SVMDB_ACTION_GET, /* not clear why anyone would care */
+ SVMDB_ACTION_SET,
+ SVMDB_ACTION_UNSET,
} svmdb_action_t;
-typedef struct {
- int pid;
- int signum;
- u32 action:4;
- u32 opaque:28;
+typedef struct
+{
+ int pid;
+ int signum;
+ u32 action:4;
+ u32 opaque:28;
} svmdb_notify_t;
-typedef struct {
- u8 *value;
- svmdb_notify_t *notifications;
- u32 elsize;
+typedef struct
+{
+ u8 *value;
+ svmdb_notify_t *notifications;
+ u32 elsize;
} svmdb_value_t;
-typedef enum {
- SVMDB_NAMESPACE_STRING=0,
- SVMDB_NAMESPACE_VEC,
- SVMDB_N_NAMESPACES,
+typedef enum
+{
+ SVMDB_NAMESPACE_STRING = 0,
+ SVMDB_NAMESPACE_VEC,
+ SVMDB_N_NAMESPACES,
} svmdb_namespace_t;
-typedef struct {
- uword version;
- /* pool of values */
- svmdb_value_t *values;
- uword *namespaces [SVMDB_N_NAMESPACES];
+typedef struct
+{
+ uword version;
+ /* pool of values */
+ svmdb_value_t *values;
+ uword *namespaces[SVMDB_N_NAMESPACES];
} svmdb_shm_hdr_t;
#define SVMDB_SHM_VERSION 2
-typedef struct {
- int flags;
- int pid;
- svm_region_t *db_rp;
- svmdb_shm_hdr_t *shm;
-} svmdb_client_t;
-
-typedef struct {
- int add_del;
- svmdb_namespace_t nspace;
- char *var;
- u32 elsize;
- int signum;
- u32 action:4;
- u32 opaque:28;
+typedef struct
+{
+ int flags;
+ int pid;
+ svm_region_t *db_rp;
+ svmdb_shm_hdr_t *shm;
+} svmdb_client_t;
+
+typedef struct
+{
+ int add_del;
+ svmdb_namespace_t nspace;
+ char *var;
+ u32 elsize;
+ int signum;
+ u32 action:4;
+ u32 opaque:28;
} svmdb_notification_args_t;
-/*
- * Must be a reasonable number, several mb smaller than
+/*
+ * Must be a reasonable number, several mb smaller than
* SVM_GLOBAL_REGION_SIZE, or no donut for you...
*/
#define SVMDB_DEFAULT_SIZE (4<<20)
svmdb_client_t *svmdb_map_chroot_size (char *root_path, uword size);
-void svmdb_unmap (svmdb_client_t *client);
-void svmdb_local_unset_string_variable (svmdb_client_t *client, char *var);
-void svmdb_local_set_string_variable (svmdb_client_t *client,
- char *var, char *val);
-char *svmdb_local_get_string_variable (svmdb_client_t *client, char *var);
-void *svmdb_local_get_variable_reference (svmdb_client_t *client,
- svmdb_namespace_t ns,
- char *var);
+void svmdb_unmap (svmdb_client_t * client);
+void svmdb_local_unset_string_variable (svmdb_client_t * client, char *var);
+void svmdb_local_set_string_variable (svmdb_client_t * client,
+ char *var, char *val);
+char *svmdb_local_get_string_variable (svmdb_client_t * client, char *var);
+void *svmdb_local_get_variable_reference (svmdb_client_t * client,
+ svmdb_namespace_t ns, char *var);
-void svmdb_local_dump_strings (svmdb_client_t *client);
+void svmdb_local_dump_strings (svmdb_client_t * client);
-void svmdb_local_unset_vec_variable (svmdb_client_t *client, char *var);
-void svmdb_local_set_vec_variable (svmdb_client_t *client,
- char *var, void *val, u32 elsize);
-void *svmdb_local_get_vec_variable (svmdb_client_t *client, char *var,
- u32 elsize);
-void svmdb_local_dump_vecs (svmdb_client_t *client);
+void svmdb_local_unset_vec_variable (svmdb_client_t * client, char *var);
+void svmdb_local_set_vec_variable (svmdb_client_t * client,
+ char *var, void *val, u32 elsize);
+void *svmdb_local_get_vec_variable (svmdb_client_t * client, char *var,
+ u32 elsize);
+void svmdb_local_dump_vecs (svmdb_client_t * client);
-int svmdb_local_add_del_notification (svmdb_client_t *client,
- svmdb_notification_args_t *args);
+int svmdb_local_add_del_notification (svmdb_client_t * client,
+ svmdb_notification_args_t * args);
-void *svmdb_local_find_or_add_vec_variable (svmdb_client_t *client,
- char *var, u32 nbytes);
+void *svmdb_local_find_or_add_vec_variable (svmdb_client_t * client,
+ char *var, u32 nbytes);
#endif /* __included_svmdb_h__ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
#include <vppinfra/serialize.h>
#include "svmdb.h"
-static void get_string (char *chroot_path, u8 *vbl)
+static void
+get_string (char *chroot_path, u8 * vbl)
{
- svmdb_client_t *c;
- char *rv;
+ svmdb_client_t *c;
+ char *rv;
- c = svmdb_map_chroot(chroot_path);
+ c = svmdb_map_chroot (chroot_path);
- rv = svmdb_local_get_string_variable (c, (char *)vbl);
-
- fformat(stdout, "%s\n", rv ? rv : "UNSET");
- vec_free(rv);
- svmdb_unmap (c);
+ rv = svmdb_local_get_string_variable (c, (char *) vbl);
+
+ fformat (stdout, "%s\n", rv ? rv : "UNSET");
+ vec_free (rv);
+ svmdb_unmap (c);
}
-static void set_string (char *chroot_path, u8 *vbl, u8 *value)
+static void
+set_string (char *chroot_path, u8 * vbl, u8 * value)
{
- svmdb_client_t *c;
+ svmdb_client_t *c;
- c = svmdb_map_chroot(chroot_path);
- svmdb_local_set_string_variable (c, (char *)vbl, (char *)value);
- svmdb_unmap (c);
+ c = svmdb_map_chroot (chroot_path);
+ svmdb_local_set_string_variable (c, (char *) vbl, (char *) value);
+ svmdb_unmap (c);
}
-static void unset_string (char *chroot_path, u8 *vbl)
+static void
+unset_string (char *chroot_path, u8 * vbl)
{
- svmdb_client_t *c;
+ svmdb_client_t *c;
- c = svmdb_map_chroot(chroot_path);
- svmdb_local_unset_string_variable (c, (char *)vbl);
- svmdb_unmap (c);
+ c = svmdb_map_chroot (chroot_path);
+ svmdb_local_unset_string_variable (c, (char *) vbl);
+ svmdb_unmap (c);
}
-static void dump_strings(char *chroot_path)
+static void
+dump_strings (char *chroot_path)
{
- svmdb_client_t *c;
+ svmdb_client_t *c;
- c = svmdb_map_chroot(chroot_path);
- svmdb_local_dump_strings (c);
- svmdb_unmap (c);
+ c = svmdb_map_chroot (chroot_path);
+ svmdb_local_dump_strings (c);
+ svmdb_unmap (c);
}
-static void test_vlib_vec_rate (char *chroot_path, f64 vr)
+static void
+test_vlib_vec_rate (char *chroot_path, f64 vr)
{
- svmdb_client_t *c;
- f64 *tv = 0;
+ svmdb_client_t *c;
+ f64 *tv = 0;
- vec_add1 (tv, vr);
+ vec_add1 (tv, vr);
- c = svmdb_map_chroot(chroot_path);
+ c = svmdb_map_chroot (chroot_path);
- svmdb_local_set_vec_variable (c, "vlib_vector_rate", (char *)tv, sizeof (*tv));
- svmdb_unmap (c);
+ svmdb_local_set_vec_variable (c, "vlib_vector_rate", (char *) tv,
+ sizeof (*tv));
+ svmdb_unmap (c);
- vec_free(tv);
+ vec_free (tv);
}
-static void test_vec (char *chroot_path, u8 *vbl)
+static void
+test_vec (char *chroot_path, u8 * vbl)
{
- svmdb_client_t *c;
- u64 *tv = 0;
- int i;
-
- /* my amp goes to 11 */
- for (i = 0; i < 11; i++) {
- vec_add1(tv, i);
+ svmdb_client_t *c;
+ u64 *tv = 0;
+ int i;
+
+ /* my amp goes to 11 */
+ for (i = 0; i < 11; i++)
+ {
+ vec_add1 (tv, i);
}
- c = svmdb_map_chroot(chroot_path);
- svmdb_local_set_vec_variable (c, (char *)vbl, (char *)tv, sizeof (tv[0]));
- svmdb_unmap (c);
+ c = svmdb_map_chroot (chroot_path);
+ svmdb_local_set_vec_variable (c, (char *) vbl, (char *) tv, sizeof (tv[0]));
+ svmdb_unmap (c);
- vec_free(tv);
+ vec_free (tv);
}
-static void fake_install (char *chroot_path, u8 *add_value)
+static void
+fake_install (char *chroot_path, u8 * add_value)
{
- svmdb_client_t *c;
- u8 *v = 0;
- u8 **values = 0;
- u8 *oldvalue;
- u8 *value;
- int nitems = 0, i;
- serialize_main_t m;
-
- c = svmdb_map_chroot(chroot_path);
-
- oldvalue = svmdb_local_get_vec_variable (c, "installed_sw", 1);
- if (oldvalue) {
- unserialize_open_data (&m, oldvalue, vec_len (oldvalue));
- nitems = unserialize_likely_small_unsigned_integer (&m);
- for (i = 0; i < nitems; i++) {
- unserialize_cstring (&m, (char **)&value);
- vec_add1 (values, value);
- }
- vec_free (v);
+ svmdb_client_t *c;
+ u8 *v = 0;
+ u8 **values = 0;
+ u8 *oldvalue;
+ u8 *value;
+ int nitems = 0, i;
+ serialize_main_t m;
+
+ c = svmdb_map_chroot (chroot_path);
+
+ oldvalue = svmdb_local_get_vec_variable (c, "installed_sw", 1);
+ if (oldvalue)
+ {
+ unserialize_open_data (&m, oldvalue, vec_len (oldvalue));
+ nitems = unserialize_likely_small_unsigned_integer (&m);
+ for (i = 0; i < nitems; i++)
+ {
+ unserialize_cstring (&m, (char **) &value);
+ vec_add1 (values, value);
+ }
+ vec_free (v);
}
- nitems++;
- value = format (0, "%s%c", add_value, 0);
+ nitems++;
+ value = format (0, "%s%c", add_value, 0);
- vec_add1 (values, value);
+ vec_add1 (values, value);
- fformat (stdout, "Resulting installed_sw vector:\n");
+ fformat (stdout, "Resulting installed_sw vector:\n");
- serialize_open_vector (&m, v);
- serialize_likely_small_unsigned_integer (&m, vec_len (values));
- for (i = 0; i < vec_len (values); i++) {
- fformat (stdout, "%s\n", values[i]);
- serialize_cstring (&m, (char *)values[i]);
+ serialize_open_vector (&m, v);
+ serialize_likely_small_unsigned_integer (&m, vec_len (values));
+ for (i = 0; i < vec_len (values); i++)
+ {
+ fformat (stdout, "%s\n", values[i]);
+ serialize_cstring (&m, (char *) values[i]);
}
- v = serialize_close_vector (&m);
+ v = serialize_close_vector (&m);
- svmdb_local_set_vec_variable (c, "installed_sw", v, sizeof (v[0]));
- svmdb_unmap (c);
+ svmdb_local_set_vec_variable (c, "installed_sw", v, sizeof (v[0]));
+ svmdb_unmap (c);
- for (i = 0; i < vec_len (values); i++)
- vec_free (values[i]);
- vec_free (values);
+ for (i = 0; i < vec_len (values); i++)
+ vec_free (values[i]);
+ vec_free (values);
}
-static void sigaction_handler (int signum, siginfo_t *i, void *notused)
+static void
+sigaction_handler (int signum, siginfo_t * i, void *notused)
{
- u32 action, opaque;
+ u32 action, opaque;
- action = (u32)(uword) i->si_ptr;
- action >>= 28;
- opaque = (u32)(uword) i->si_ptr;
- opaque &= ~(0xF0000000);
+ action = (u32) (uword) i->si_ptr;
+ action >>= 28;
+ opaque = (u32) (uword) i->si_ptr;
+ opaque &= ~(0xF0000000);
- clib_warning ("signal %d, action %d, opaque %x",
- signum, action, opaque);
+ clib_warning ("signal %d, action %d, opaque %x", signum, action, opaque);
}
-static void test_reg (char *chroot_path, u8 *vbl)
+static void
+test_reg (char *chroot_path, u8 * vbl)
{
- svmdb_client_t *c;
- svmdb_notification_args_t args;
- svmdb_notification_args_t *a = &args;
- struct sigaction sa;
-
- memset (&sa, 0, sizeof (sa));
- sa.sa_sigaction = sigaction_handler;
- sa.sa_flags = SA_SIGINFO;
- if (sigaction (SIGUSR2, &sa, 0) < 0) {
- clib_unix_warning ("sigaction");
- return;
+ svmdb_client_t *c;
+ svmdb_notification_args_t args;
+ svmdb_notification_args_t *a = &args;
+ struct sigaction sa;
+
+ memset (&sa, 0, sizeof (sa));
+ sa.sa_sigaction = sigaction_handler;
+ sa.sa_flags = SA_SIGINFO;
+ if (sigaction (SIGUSR2, &sa, 0) < 0)
+ {
+ clib_unix_warning ("sigaction");
+ return;
}
- memset (a, 0, sizeof (*a));
+ memset (a, 0, sizeof (*a));
+
+ c = svmdb_map_chroot (chroot_path);
- c = svmdb_map_chroot(chroot_path);
+ a->add_del = 1 /* add */ ;
+ a->nspace = SVMDB_NAMESPACE_STRING;
+ a->var = (char *) vbl;
+ a->elsize = 1;
+ a->signum = SIGUSR2;
+ a->action = SVMDB_ACTION_GET;
+ a->opaque = 0x0eadbeef;
- a->add_del = 1 /* add */;
- a->nspace = SVMDB_NAMESPACE_STRING;
- a->var = (char *) vbl;
- a->elsize = 1;
- a->signum = SIGUSR2;
- a->action = SVMDB_ACTION_GET;
- a->opaque = 0x0eadbeef;
+ svmdb_local_add_del_notification (c, a);
- svmdb_local_add_del_notification (c, a);
+ (void) svmdb_local_get_string_variable (c, (char *) vbl);
- (void) svmdb_local_get_string_variable (c, (char *)vbl);
+ a->add_del = 0; /* del */
+ svmdb_local_add_del_notification (c, a);
- a->add_del = 0; /* del */
- svmdb_local_add_del_notification (c, a);
-
-
- svmdb_unmap (c);
+
+ svmdb_unmap (c);
}
-static void unset_vec (char *chroot_path, u8 *vbl)
+static void
+unset_vec (char *chroot_path, u8 * vbl)
{
- svmdb_client_t *c;
+ svmdb_client_t *c;
- c = svmdb_map_chroot(chroot_path);
- svmdb_local_unset_vec_variable (c, (char *)vbl);
- svmdb_unmap (c);
+ c = svmdb_map_chroot (chroot_path);
+ svmdb_local_unset_vec_variable (c, (char *) vbl);
+ svmdb_unmap (c);
}
-static void dump_vecs(char *chroot_path)
+static void
+dump_vecs (char *chroot_path)
{
- svmdb_client_t *c;
+ svmdb_client_t *c;
- c = svmdb_map_chroot(chroot_path);
- svmdb_local_dump_vecs (c);
- svmdb_unmap (c);
+ c = svmdb_map_chroot (chroot_path);
+ svmdb_local_dump_vecs (c);
+ svmdb_unmap (c);
}
-static void crash_test(char *chroot_path)
+static void
+crash_test (char *chroot_path)
{
- svmdb_client_t *c;
+ svmdb_client_t *c;
- c = svmdb_map_chroot(chroot_path);
+ c = svmdb_map_chroot (chroot_path);
- clib_warning ("Grab region mutex and crash deliberately!");
- c->db_rp->mutex_owner_pid = getpid();
- c->db_rp->mutex_owner_tag = -13;
- pthread_mutex_lock(&c->db_rp->mutex);
+ clib_warning ("Grab region mutex and crash deliberately!");
+ c->db_rp->mutex_owner_pid = getpid ();
+ c->db_rp->mutex_owner_tag = -13;
+ pthread_mutex_lock (&c->db_rp->mutex);
- abort();
+ abort ();
}
-static void map_with_size (char *chroot_path, uword size)
+static void
+map_with_size (char *chroot_path, uword size)
{
- svmdb_client_t *c;
- c = svmdb_map_chroot_size (chroot_path, size);
- svmdb_unmap (c);
+ svmdb_client_t *c;
+ c = svmdb_map_chroot_size (chroot_path, size);
+ svmdb_unmap (c);
}
-int main (int argc, char **argv)
+int
+main (int argc, char **argv)
{
- unformat_input_t input;
- int parsed =0;
- u8 *vbl=0, *value=0;
- char *chroot_path = 0;
- u8 *chroot_path_u8;
- uword size;
- f64 vr;
-
- unformat_init_command_line (&input, argv);
-
- while (unformat_check_input (&input) != UNFORMAT_END_OF_INPUT) {
- if (unformat (&input, "get-string %s", &vbl)) {
- get_string (chroot_path, vbl);
- vec_free(vbl);
- parsed++;
- } else if (unformat (&input, "set-string %s %s", &vbl, &value)) {
- set_string (chroot_path, vbl, value);
- vec_free(vbl);
- vec_free(value);
- parsed++;
- } else if (unformat(&input, "unset-string %s", &vbl)) {
- unset_string (chroot_path, vbl);
- vec_free(vbl);
- parsed++;
- } else if (unformat(&input, "dump-strings")) {
- dump_strings(chroot_path);
- parsed++;
- } else if (unformat(&input, "unset-vec %s", &vbl)) {
- unset_vec (chroot_path, vbl);
- vec_free(vbl);
- parsed++;
- } else if (unformat(&input, "dump-vecs")) {
- dump_vecs(chroot_path);
- parsed++;
- } else if (unformat (&input, "test-vec %s", &vbl)) {
- test_vec(chroot_path, vbl);
- // vec_free(vbl);
- parsed++;
- } else if (unformat (&input, "vlib-vec-rate %f", &vr)) {
- test_vlib_vec_rate(chroot_path, vr);
- parsed++;
- } else if (unformat (&input, "test-reg %s", &vbl)) {
- test_reg(chroot_path, vbl);
- parsed++;
- } else if (unformat (&input, "crash-test")) {
- crash_test (chroot_path);
- } else if (unformat (&input, "chroot %s", &chroot_path_u8)) {
- chroot_path = (char *) chroot_path_u8;
- } else if (unformat (&input, "fake-install %s", &value)) {
- fake_install (chroot_path, value);
- parsed++;
- } else if (unformat (&input, "size %d", &size)) {
- map_with_size (chroot_path, size);
- parsed++;
- } else {
- break;
- }
+ unformat_input_t input;
+ int parsed = 0;
+ u8 *vbl = 0, *value = 0;
+ char *chroot_path = 0;
+ u8 *chroot_path_u8;
+ uword size;
+ f64 vr;
+
+ unformat_init_command_line (&input, argv);
+
+ while (unformat_check_input (&input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (&input, "get-string %s", &vbl))
+ {
+ get_string (chroot_path, vbl);
+ vec_free (vbl);
+ parsed++;
+ }
+ else if (unformat (&input, "set-string %s %s", &vbl, &value))
+ {
+ set_string (chroot_path, vbl, value);
+ vec_free (vbl);
+ vec_free (value);
+ parsed++;
+ }
+ else if (unformat (&input, "unset-string %s", &vbl))
+ {
+ unset_string (chroot_path, vbl);
+ vec_free (vbl);
+ parsed++;
+ }
+ else if (unformat (&input, "dump-strings"))
+ {
+ dump_strings (chroot_path);
+ parsed++;
+ }
+ else if (unformat (&input, "unset-vec %s", &vbl))
+ {
+ unset_vec (chroot_path, vbl);
+ vec_free (vbl);
+ parsed++;
+ }
+ else if (unformat (&input, "dump-vecs"))
+ {
+ dump_vecs (chroot_path);
+ parsed++;
+ }
+ else if (unformat (&input, "test-vec %s", &vbl))
+ {
+ test_vec (chroot_path, vbl);
+ // vec_free(vbl);
+ parsed++;
+ }
+ else if (unformat (&input, "vlib-vec-rate %f", &vr))
+ {
+ test_vlib_vec_rate (chroot_path, vr);
+ parsed++;
+ }
+ else if (unformat (&input, "test-reg %s", &vbl))
+ {
+ test_reg (chroot_path, vbl);
+ parsed++;
+ }
+ else if (unformat (&input, "crash-test"))
+ {
+ crash_test (chroot_path);
+ }
+ else if (unformat (&input, "chroot %s", &chroot_path_u8))
+ {
+ chroot_path = (char *) chroot_path_u8;
+ }
+ else if (unformat (&input, "fake-install %s", &value))
+ {
+ fake_install (chroot_path, value);
+ parsed++;
+ }
+ else if (unformat (&input, "size %d", &size))
+ {
+ map_with_size (chroot_path, size);
+ parsed++;
+ }
+ else
+ {
+ break;
+ }
}
- unformat_free (&input);
+ unformat_free (&input);
- if (!parsed) {
- fformat(stdout, "%s: get-string <name> | set-string <name> <value>\n",
- argv[0]);
- fformat(stdout, " unset-string <name> | dump-strings\n");
- fformat(stdout, " test-vec <name> |\n");
- fformat(stdout, " unset-vec <name> | dump-vecs\n");
+ if (!parsed)
+ {
+ fformat (stdout, "%s: get-string <name> | set-string <name> <value>\n",
+ argv[0]);
+ fformat (stdout, " unset-string <name> | dump-strings\n");
+ fformat (stdout, " test-vec <name> |\n");
+ fformat (stdout, " unset-vec <name> | dump-vecs\n");
}
-
- exit (0);
+
+ exit (0);
}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
-/*
+/*
*------------------------------------------------------------------
- * svmtool.c
+ * svmtool.c
*
* Copyright (c) 2009 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* format_all_svm_regions
* Maps / unmaps regions. Do NOT call from client code!
*/
-u8 *format_all_svm_regions (u8 *s, va_list * args)
+u8 *
+format_all_svm_regions (u8 * s, va_list * args)
{
- int verbose = va_arg (*args, int);
- svm_region_t *root_rp = svm_get_root_rp();
- svm_main_region_t *mp;
- svm_subregion_t *subp;
- svm_region_t *rp;
- svm_map_region_args_t *a = 0;
- u8 ** svm_names=0;
- u8 *name=0;
- int i;
-
- ASSERT(root_rp);
-
- pthread_mutex_lock (&root_rp->mutex);
-
- s = format (s, "%U", format_svm_region, root_rp, verbose);
-
- mp = root_rp->data_base;
-
- /*
- * Snapshoot names, can't hold root rp mutex across
- * find_or_create.
- */
- pool_foreach (subp, mp->subregions, ({
- name = vec_dup (subp->subregion_name);
- vec_add1(svm_names, name);
- }));
-
- pthread_mutex_unlock (&root_rp->mutex);
-
- for (i = 0; i < vec_len(svm_names); i++) {
- vec_validate(a, 0);
- a->name = (char *) svm_names[i];
- rp = svm_region_find_or_create (a);
- if (rp) {
- pthread_mutex_lock (&rp->mutex);
- s = format (s, "%U", format_svm_region, rp, verbose);
- pthread_mutex_unlock (&rp->mutex);
- svm_region_unmap (rp);
- vec_free(svm_names[i]);
- }
- vec_free (a);
+ int verbose = va_arg (*args, int);
+ svm_region_t *root_rp = svm_get_root_rp ();
+ svm_main_region_t *mp;
+ svm_subregion_t *subp;
+ svm_region_t *rp;
+ svm_map_region_args_t *a = 0;
+ u8 **svm_names = 0;
+ u8 *name = 0;
+ int i;
+
+ ASSERT (root_rp);
+
+ pthread_mutex_lock (&root_rp->mutex);
+
+ s = format (s, "%U", format_svm_region, root_rp, verbose);
+
+ mp = root_rp->data_base;
+
+ /*
+ * Snapshoot names, can't hold root rp mutex across
+ * find_or_create.
+ */
+ /* *INDENT-OFF* */
+ pool_foreach (subp, mp->subregions, ({
+ name = vec_dup (subp->subregion_name);
+ vec_add1(svm_names, name);
+ }));
+ /* *INDENT-ON* */
+
+ pthread_mutex_unlock (&root_rp->mutex);
+
+ for (i = 0; i < vec_len (svm_names); i++)
+ {
+ vec_validate (a, 0);
+ a->name = (char *) svm_names[i];
+ rp = svm_region_find_or_create (a);
+ if (rp)
+ {
+ pthread_mutex_lock (&rp->mutex);
+ s = format (s, "%U", format_svm_region, rp, verbose);
+ pthread_mutex_unlock (&rp->mutex);
+ svm_region_unmap (rp);
+ vec_free (svm_names[i]);
+ }
+ vec_free (a);
}
- vec_free(svm_names);
- return (s);
+ vec_free (svm_names);
+ return (s);
}
-void show (char *chroot_path, int verbose)
+void
+show (char *chroot_path, int verbose)
{
- svm_map_region_args_t *a = 0;
+ svm_map_region_args_t *a = 0;
- vec_validate (a, 0);
+ vec_validate (a, 0);
- svm_region_init_chroot(chroot_path);
+ svm_region_init_chroot (chroot_path);
- fformat(stdout, "My pid is %d\n", getpid());
+ fformat (stdout, "My pid is %d\n", getpid ());
- fformat(stdout, "%U", format_all_svm_regions, verbose);
+ fformat (stdout, "%U", format_all_svm_regions, verbose);
- svm_region_exit ();
+ svm_region_exit ();
- vec_free (a);
+ vec_free (a);
}
-static void *svm_map_region_nolock (svm_map_region_args_t *a)
+static void *
+svm_map_region_nolock (svm_map_region_args_t * a)
{
- int svm_fd;
- svm_region_t *rp;
- int deadman=0;
- u8 *shm_name;
+ int svm_fd;
+ svm_region_t *rp;
+ int deadman = 0;
+ u8 *shm_name;
- ASSERT((a->size & ~(MMAP_PAGESIZE-1)) == a->size);
+ ASSERT ((a->size & ~(MMAP_PAGESIZE - 1)) == a->size);
- shm_name = shm_name_from_svm_map_region_args (a);
+ shm_name = shm_name_from_svm_map_region_args (a);
- svm_fd = shm_open((char *)shm_name, O_RDWR, 0777);
+ svm_fd = shm_open ((char *) shm_name, O_RDWR, 0777);
- if (svm_fd < 0) {
- perror("svm_region_map(mmap open)");
- return (0);
+ if (svm_fd < 0)
+ {
+ perror ("svm_region_map(mmap open)");
+ return (0);
}
- vec_free (shm_name);
-
- rp = mmap(0, MMAP_PAGESIZE,
- PROT_READ | PROT_WRITE, MAP_SHARED, svm_fd, 0);
-
- if (rp == (svm_region_t *) MAP_FAILED) {
- close(svm_fd);
- clib_warning("mmap");
- return (0);
+ vec_free (shm_name);
+
+ rp = mmap (0, MMAP_PAGESIZE, PROT_READ | PROT_WRITE, MAP_SHARED, svm_fd, 0);
+
+ if (rp == (svm_region_t *) MAP_FAILED)
+ {
+ close (svm_fd);
+ clib_warning ("mmap");
+ return (0);
}
- /*
- * We lost the footrace to create this region; make sure
- * the winner has crossed the finish line.
- */
- while (rp->version == 0 && deadman++ < 5) {
- sleep(1);
+ /*
+ * We lost the footrace to create this region; make sure
+ * the winner has crossed the finish line.
+ */
+ while (rp->version == 0 && deadman++ < 5)
+ {
+ sleep (1);
}
- /*
- * <bleep>-ed?
- */
- if (rp->version == 0) {
- clib_warning("rp->version %d not %d", rp->version,
- SVM_VERSION);
- return (0);
- }
- /* Remap now that the region has been placed */
- a->baseva = rp->virtual_base;
- a->size = rp->virtual_size;
- munmap(rp, MMAP_PAGESIZE);
-
- rp = (void *) mmap ((void *)a->baseva, a->size,
- PROT_READ | PROT_WRITE,
- MAP_SHARED | MAP_FIXED, svm_fd, 0);
- if ((uword)rp == (uword)MAP_FAILED) {
- clib_unix_warning ("mmap");
- return (0);
+ /*
+ * <bleep>-ed?
+ */
+ if (rp->version == 0)
+ {
+ clib_warning ("rp->version %d not %d", rp->version, SVM_VERSION);
+ return (0);
}
-
- if ((uword) rp != rp->virtual_base) {
- clib_warning("mmap botch");
+ /* Remap now that the region has been placed */
+ a->baseva = rp->virtual_base;
+ a->size = rp->virtual_size;
+ munmap (rp, MMAP_PAGESIZE);
+
+ rp = (void *) mmap ((void *) a->baseva, a->size,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED | MAP_FIXED, svm_fd, 0);
+ if ((uword) rp == (uword) MAP_FAILED)
+ {
+ clib_unix_warning ("mmap");
+ return (0);
}
-
- if (pthread_mutex_trylock(&rp->mutex)) {
- clib_warning ("rp->mutex LOCKED by pid %d, tag %d, cleared...",
- rp->mutex_owner_pid, rp->mutex_owner_tag);
- memset(&rp->mutex, 0, sizeof (rp->mutex));
-
- } else {
- clib_warning ("mutex OK...\n");
- pthread_mutex_unlock(&rp->mutex);
+
+ if ((uword) rp != rp->virtual_base)
+ {
+ clib_warning ("mmap botch");
}
- return ((void *) rp);
+ if (pthread_mutex_trylock (&rp->mutex))
+ {
+ clib_warning ("rp->mutex LOCKED by pid %d, tag %d, cleared...",
+ rp->mutex_owner_pid, rp->mutex_owner_tag);
+ memset (&rp->mutex, 0, sizeof (rp->mutex));
+
+ }
+ else
+ {
+ clib_warning ("mutex OK...\n");
+ pthread_mutex_unlock (&rp->mutex);
+ }
+
+ return ((void *) rp);
}
/*
* rnd_pagesize
* Round to a pagesize multiple, presumably 4k works
*/
-static unsigned int rnd_pagesize(unsigned int size)
+static unsigned int
+rnd_pagesize (unsigned int size)
{
- unsigned int rv;
+ unsigned int rv;
- rv = (size + (MMAP_PAGESIZE-1)) & ~(MMAP_PAGESIZE-1);
- return(rv);
+ rv = (size + (MMAP_PAGESIZE - 1)) & ~(MMAP_PAGESIZE - 1);
+ return (rv);
}
#define MUTEX_DEBUG
-always_inline void region_lock(svm_region_t *rp, int tag)
+always_inline void
+region_lock (svm_region_t * rp, int tag)
{
- pthread_mutex_lock(&rp->mutex);
+ pthread_mutex_lock (&rp->mutex);
#ifdef MUTEX_DEBUG
- rp->mutex_owner_pid = getpid();
- rp->mutex_owner_tag = tag;
-#endif
+ rp->mutex_owner_pid = getpid ();
+ rp->mutex_owner_tag = tag;
+#endif
}
-always_inline void region_unlock(svm_region_t *rp)
+always_inline void
+region_unlock (svm_region_t * rp)
{
#ifdef MUTEX_DEBUG
- rp->mutex_owner_pid = 0;
- rp->mutex_owner_tag = 0;
-#endif
- pthread_mutex_unlock(&rp->mutex);
+ rp->mutex_owner_pid = 0;
+ rp->mutex_owner_tag = 0;
+#endif
+ pthread_mutex_unlock (&rp->mutex);
}
-static void *svm_existing_region_map_nolock (void *root_arg,
- svm_map_region_args_t *a)
+static void *
+svm_existing_region_map_nolock (void *root_arg, svm_map_region_args_t * a)
{
- svm_region_t *root_rp = root_arg;
- svm_main_region_t *mp;
- svm_region_t *rp;
- void *oldheap;
- uword *p;
-
- a->size += MMAP_PAGESIZE + SVM_PVT_MHEAP_SIZE;
- a->size = rnd_pagesize(a->size);
-
- region_lock (root_rp, 4);
- oldheap = svm_push_pvt_heap(root_rp);
- mp = root_rp->data_base;
-
- ASSERT(mp);
-
- p = hash_get_mem (mp->name_hash, a->name);
-
- if (p) {
- rp = svm_map_region_nolock (a);
- region_unlock(root_rp);
- svm_pop_heap (oldheap);
- return rp;
+ svm_region_t *root_rp = root_arg;
+ svm_main_region_t *mp;
+ svm_region_t *rp;
+ void *oldheap;
+ uword *p;
+
+ a->size += MMAP_PAGESIZE + SVM_PVT_MHEAP_SIZE;
+ a->size = rnd_pagesize (a->size);
+
+ region_lock (root_rp, 4);
+ oldheap = svm_push_pvt_heap (root_rp);
+ mp = root_rp->data_base;
+
+ ASSERT (mp);
+
+ p = hash_get_mem (mp->name_hash, a->name);
+
+ if (p)
+ {
+ rp = svm_map_region_nolock (a);
+ region_unlock (root_rp);
+ svm_pop_heap (oldheap);
+ return rp;
}
- return 0;
+ return 0;
}
-static void trace (char *chroot_path, char *name, int enable_disable)
+static void
+trace (char *chroot_path, char *name, int enable_disable)
{
- svm_map_region_args_t *a = 0;
- svm_region_t *db_rp;
- void *oldheap;
-
- vec_validate (a, 0);
-
- svm_region_init_chroot(chroot_path);
-
- a->name = name;
- a->size = 1<<20;
- a->flags = SVM_FLAGS_MHEAP;
-
- db_rp = svm_region_find_or_create (a);
-
- ASSERT(db_rp);
-
- region_lock (db_rp, 20);
-
- oldheap = svm_push_data_heap (db_rp);
-
- mheap_trace (db_rp->data_heap, enable_disable);
-
- svm_pop_heap (oldheap);
- region_unlock (db_rp);
-
- svm_region_unmap ((void *)db_rp);
- svm_region_exit ();
- vec_free (a);
+ svm_map_region_args_t *a = 0;
+ svm_region_t *db_rp;
+ void *oldheap;
+
+ vec_validate (a, 0);
+
+ svm_region_init_chroot (chroot_path);
+
+ a->name = name;
+ a->size = 1 << 20;
+ a->flags = SVM_FLAGS_MHEAP;
+
+ db_rp = svm_region_find_or_create (a);
+
+ ASSERT (db_rp);
+
+ region_lock (db_rp, 20);
+
+ oldheap = svm_push_data_heap (db_rp);
+
+ mheap_trace (db_rp->data_heap, enable_disable);
+
+ svm_pop_heap (oldheap);
+ region_unlock (db_rp);
+
+ svm_region_unmap ((void *) db_rp);
+ svm_region_exit ();
+ vec_free (a);
}
-static void subregion_repair(char *chroot_path)
+static void
+subregion_repair (char *chroot_path)
{
- int i;
- svm_main_region_t *mp;
- svm_map_region_args_t a;
- svm_region_t *root_rp;
- svm_region_t *rp;
- svm_subregion_t *subp;
- u8 *name=0;
- u8 ** svm_names=0;
-
- svm_region_init_chroot(chroot_path);
- root_rp = svm_get_root_rp();
-
- pthread_mutex_lock (&root_rp->mutex);
-
- mp = root_rp->data_base;
-
- /*
- * Snapshoot names, can't hold root rp mutex across
- * find_or_create.
- */
- pool_foreach (subp, mp->subregions, ({
- name = vec_dup (subp->subregion_name);
- vec_add1(svm_names, name);
- }));
-
- pthread_mutex_unlock (&root_rp->mutex);
-
- for (i = 0; i < vec_len(svm_names); i++) {
- memset (&a, 0, sizeof (a));
- a.root_path = chroot_path;
- a.name = (char *) svm_names[i];
- fformat(stdout, "Checking %s region...\n",
- a.name);
- rp = svm_existing_region_map_nolock (root_rp, &a);
- if (rp) {
- svm_region_unmap (rp);
- vec_free(svm_names[i]);
- }
+ int i;
+ svm_main_region_t *mp;
+ svm_map_region_args_t a;
+ svm_region_t *root_rp;
+ svm_region_t *rp;
+ svm_subregion_t *subp;
+ u8 *name = 0;
+ u8 **svm_names = 0;
+
+ svm_region_init_chroot (chroot_path);
+ root_rp = svm_get_root_rp ();
+
+ pthread_mutex_lock (&root_rp->mutex);
+
+ mp = root_rp->data_base;
+
+ /*
+ * Snapshoot names, can't hold root rp mutex across
+ * find_or_create.
+ */
+ /* *INDENT-OFF* */
+ pool_foreach (subp, mp->subregions, ({
+ name = vec_dup (subp->subregion_name);
+ vec_add1(svm_names, name);
+ }));
+ /* *INDENT-ON* */
+
+ pthread_mutex_unlock (&root_rp->mutex);
+
+ for (i = 0; i < vec_len (svm_names); i++)
+ {
+ memset (&a, 0, sizeof (a));
+ a.root_path = chroot_path;
+ a.name = (char *) svm_names[i];
+ fformat (stdout, "Checking %s region...\n", a.name);
+ rp = svm_existing_region_map_nolock (root_rp, &a);
+ if (rp)
+ {
+ svm_region_unmap (rp);
+ vec_free (svm_names[i]);
+ }
}
- vec_free(svm_names);
+ vec_free (svm_names);
}
-void repair (char *chroot_path, int crash_root_region)
+void
+repair (char *chroot_path, int crash_root_region)
{
- svm_region_t *root_rp = 0;
- svm_map_region_args_t *a = 0;
- void *svm_map_region (svm_map_region_args_t *a);
- int svm_fd;
- u8 *shm_name;
+ svm_region_t *root_rp = 0;
+ svm_map_region_args_t *a = 0;
+ void *svm_map_region (svm_map_region_args_t * a);
+ int svm_fd;
+ u8 *shm_name;
- fformat(stdout, "our pid: %d\n", getpid());
+ fformat (stdout, "our pid: %d\n", getpid ());
- vec_validate (a, 0);
+ vec_validate (a, 0);
- a->root_path = chroot_path;
- a->name = SVM_GLOBAL_REGION_NAME;
- a->baseva = SVM_GLOBAL_REGION_BASEVA;
- a->size = SVM_GLOBAL_REGION_SIZE;
- a->flags = SVM_FLAGS_NODATA;
+ a->root_path = chroot_path;
+ a->name = SVM_GLOBAL_REGION_NAME;
+ a->baseva = SVM_GLOBAL_REGION_BASEVA;
+ a->size = SVM_GLOBAL_REGION_SIZE;
+ a->flags = SVM_FLAGS_NODATA;
- shm_name = shm_name_from_svm_map_region_args (a);
+ shm_name = shm_name_from_svm_map_region_args (a);
- svm_fd = shm_open ((char *)shm_name, O_RDWR, 0777);
+ svm_fd = shm_open ((char *) shm_name, O_RDWR, 0777);
- if (svm_fd < 0) {
- perror("svm_region_map(mmap open)");
- goto out;
+ if (svm_fd < 0)
+ {
+ perror ("svm_region_map(mmap open)");
+ goto out;
}
- vec_free(shm_name);
+ vec_free (shm_name);
- root_rp = mmap(0, MMAP_PAGESIZE,
- PROT_READ | PROT_WRITE, MAP_SHARED, svm_fd, 0);
-
- if (root_rp == (svm_region_t *) MAP_FAILED) {
- close(svm_fd);
- clib_warning("mmap");
- goto out;
+ root_rp = mmap (0, MMAP_PAGESIZE,
+ PROT_READ | PROT_WRITE, MAP_SHARED, svm_fd, 0);
+
+ if (root_rp == (svm_region_t *) MAP_FAILED)
+ {
+ close (svm_fd);
+ clib_warning ("mmap");
+ goto out;
}
-
- /* Remap now that the region has been placed */
- clib_warning ("remap to 0x%x", root_rp->virtual_base);
-
- a->baseva = root_rp->virtual_base;
- a->size = root_rp->virtual_size;
- munmap(root_rp, MMAP_PAGESIZE);
-
- root_rp = (void *) mmap ((void *)a->baseva, a->size,
- PROT_READ | PROT_WRITE,
- MAP_SHARED | MAP_FIXED, svm_fd, 0);
- if ((uword)root_rp == (uword)MAP_FAILED) {
- clib_unix_warning ("mmap");
- goto out;
+
+ /* Remap now that the region has been placed */
+ clib_warning ("remap to 0x%x", root_rp->virtual_base);
+
+ a->baseva = root_rp->virtual_base;
+ a->size = root_rp->virtual_size;
+ munmap (root_rp, MMAP_PAGESIZE);
+
+ root_rp = (void *) mmap ((void *) a->baseva, a->size,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED | MAP_FIXED, svm_fd, 0);
+ if ((uword) root_rp == (uword) MAP_FAILED)
+ {
+ clib_unix_warning ("mmap");
+ goto out;
}
-
- close(svm_fd);
- if ((uword) root_rp != root_rp->virtual_base) {
- clib_warning("mmap botch");
- goto out;
+ close (svm_fd);
+
+ if ((uword) root_rp != root_rp->virtual_base)
+ {
+ clib_warning ("mmap botch");
+ goto out;
+ }
+
+ if (pthread_mutex_trylock (&root_rp->mutex))
+ {
+ clib_warning ("root_rp->mutex LOCKED by pid %d, tag %d, cleared...",
+ root_rp->mutex_owner_pid, root_rp->mutex_owner_tag);
+ memset (&root_rp->mutex, 0, sizeof (root_rp->mutex));
+ goto out;
}
-
- if (pthread_mutex_trylock(&root_rp->mutex)) {
- clib_warning ("root_rp->mutex LOCKED by pid %d, tag %d, cleared...",
- root_rp->mutex_owner_pid, root_rp->mutex_owner_tag);
- memset(&root_rp->mutex, 0, sizeof (root_rp->mutex));
- goto out;
- } else {
- clib_warning ("root_rp->mutex OK...\n");
- pthread_mutex_unlock(&root_rp->mutex);
+ else
+ {
+ clib_warning ("root_rp->mutex OK...\n");
+ pthread_mutex_unlock (&root_rp->mutex);
}
-
- out:
- vec_free (a);
- /*
- * Now that the root region is known to be OK,
- * fix broken subregions
- */
- subregion_repair(chroot_path);
-
- if (crash_root_region) {
- clib_warning ("Leaving root region locked on purpose...");
- pthread_mutex_lock(&root_rp->mutex);
- root_rp->mutex_owner_pid = getpid();
- root_rp->mutex_owner_tag = 99;
+
+out:
+ vec_free (a);
+ /*
+ * Now that the root region is known to be OK,
+ * fix broken subregions
+ */
+ subregion_repair (chroot_path);
+
+ if (crash_root_region)
+ {
+ clib_warning ("Leaving root region locked on purpose...");
+ pthread_mutex_lock (&root_rp->mutex);
+ root_rp->mutex_owner_pid = getpid ();
+ root_rp->mutex_owner_tag = 99;
}
- svm_region_exit ();
+ svm_region_exit ();
}
-int main (int argc, char **argv)
+int
+main (int argc, char **argv)
{
- unformat_input_t input;
- int parsed =0;
- char *name;
- char *chroot_path = 0;
- u8 *chroot_u8;
-
- unformat_init_command_line (&input, argv);
-
- while (unformat_check_input (&input) != UNFORMAT_END_OF_INPUT) {
- if (unformat(&input, "show-verbose")) {
- show (chroot_path, 1);
- parsed++;
- } else if (unformat (&input, "show")) {
- show (chroot_path, 0);
- parsed++;
- } else if (unformat (&input, "client-scan")) {
- svm_client_scan(chroot_path);
- parsed++;
- } else if (unformat (&input, "repair")) {
- repair(chroot_path, 0 /* fix it */);
- parsed++;
- } else if (unformat (&input, "crash")) {
- repair (chroot_path, 1 /* crash it */);
- parsed++;
- } else if (unformat (&input, "trace-on %s", &name)) {
- trace (chroot_path, name, 1);
- parsed++;
- } else if (unformat (&input, "trace-off %s", &name)) {
- trace (chroot_path, name, 0);
- parsed++;
- } else if (unformat (&input, "chroot %s", &chroot_u8)) {
- chroot_path = (char *) chroot_u8;
- } else {
- break;
- }
+ unformat_input_t input;
+ int parsed = 0;
+ char *name;
+ char *chroot_path = 0;
+ u8 *chroot_u8;
+
+ unformat_init_command_line (&input, argv);
+
+ while (unformat_check_input (&input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (&input, "show-verbose"))
+ {
+ show (chroot_path, 1);
+ parsed++;
+ }
+ else if (unformat (&input, "show"))
+ {
+ show (chroot_path, 0);
+ parsed++;
+ }
+ else if (unformat (&input, "client-scan"))
+ {
+ svm_client_scan (chroot_path);
+ parsed++;
+ }
+ else if (unformat (&input, "repair"))
+ {
+ repair (chroot_path, 0 /* fix it */ );
+ parsed++;
+ }
+ else if (unformat (&input, "crash"))
+ {
+ repair (chroot_path, 1 /* crash it */ );
+ parsed++;
+ }
+ else if (unformat (&input, "trace-on %s", &name))
+ {
+ trace (chroot_path, name, 1);
+ parsed++;
+ }
+ else if (unformat (&input, "trace-off %s", &name))
+ {
+ trace (chroot_path, name, 0);
+ parsed++;
+ }
+ else if (unformat (&input, "chroot %s", &chroot_u8))
+ {
+ chroot_path = (char *) chroot_u8;
+ }
+ else
+ {
+ break;
+ }
}
- unformat_free (&input);
+ unformat_free (&input);
- if (!parsed) {
- fformat(stdout, "%s: show | show-verbose | client-scan | trace-on <region-name>\n", argv[0]);
- fformat(stdout, " trace-off <region-name>\n");
+ if (!parsed)
+ {
+ fformat (stdout,
+ "%s: show | show-verbose | client-scan | trace-on <region-name>\n",
+ argv[0]);
+ fformat (stdout, " trace-off <region-name>\n");
}
- exit (0);
+ exit (0);
}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / commitdiff