#include <setjmp.h>
#include <svm/svm.h>
+#include <svm/ssvm.h>
#include <vppinfra/serialize.h>
#include <vppinfra/hash.h>
#include <vlibmemory/memory_client.h>
#include <vlibmemory/vl_memory_api_h.h>
#undef vl_printfun
-typedef struct
-{
- u8 rx_thread_jmpbuf_valid;
- u8 connected_to_vlib;
- jmp_buf rx_thread_jmpbuf;
- pthread_t rx_thread_handle;
- /* Plugin message base lookup scheme */
- volatile u8 first_msg_id_reply_ready;
- u16 first_msg_id_reply;
-} memory_client_main_t;
-
memory_client_main_t memory_client_main;
static void *
svm_queue_t *q;
memory_client_main_t *mm = &memory_client_main;
api_main_t *am = &api_main;
- int i;
q = am->vl_input_queue;
if (setjmp (mm->rx_thread_jmpbuf) == 0)
{
mm->rx_thread_jmpbuf_valid = 1;
- /*
- * Find an unused slot in the per-cpu-mheaps array,
- * and grab it for this thread. We need to be able to
- * push/pop the thread heap without affecting other thread(s).
- */
- if (__os_thread_index == 0)
- {
- for (i = 0; i < ARRAY_LEN (clib_per_cpu_mheaps); i++)
- {
- if (clib_per_cpu_mheaps[i] == 0)
- {
- /* Copy the main thread mheap pointer */
- clib_per_cpu_mheaps[i] = clib_per_cpu_mheaps[0];
- __os_thread_index = i;
- break;
- }
- }
- ASSERT (__os_thread_index > 0);
- }
+ clib_mem_set_thread_index ();
while (1)
vl_msg_api_queue_handler (q);
}
vl_api_rx_thread_exit_t_handler (vl_api_rx_thread_exit_t * mp)
{
memory_client_main_t *mm = &memory_client_main;
- vl_msg_api_free (mp);
- longjmp (mm->rx_thread_jmpbuf, 1);
+ if (mm->rx_thread_jmpbuf_valid)
+ longjmp (mm->rx_thread_jmpbuf, 1);
+}
+
+static void
+vl_api_name_and_crc_free (void)
+{
+ api_main_t *am = &api_main;
+ int i;
+ u8 **keys = 0;
+ hash_pair_t *hp;
+
+ if (!am->msg_index_by_name_and_crc)
+ return;
+
+ /* *INDENT-OFF* */
+ hash_foreach_pair (hp, am->msg_index_by_name_and_crc,
+ ({
+ vec_add1 (keys, (u8 *) hp->key);
+ }));
+ /* *INDENT-ON* */
+ for (i = 0; i < vec_len (keys); i++)
+ vec_free (keys[i]);
+ vec_free (keys);
+ hash_free (am->msg_index_by_name_and_crc);
}
static void
am->my_registration = (vl_api_registration_t *) (uword) mp->handle;
/* Clean out any previous hash table (unlikely) */
- if (am->msg_index_by_name_and_crc)
- {
- int i;
- u8 **keys = 0;
- hash_pair_t *hp;
- /* *INDENT-OFF* */
- hash_foreach_pair (hp, am->msg_index_by_name_and_crc,
- ({
- vec_add1 (keys, (u8 *) hp->key);
- }));
- /* *INDENT-ON* */
- for (i = 0; i < vec_len (keys); i++)
- vec_free (keys[i]);
- vec_free (keys);
- }
+ vl_api_name_and_crc_free ();
am->msg_index_by_name_and_crc = hash_create_string (0, sizeof (uword));
{
}
+void vl_msg_api_send_shmem (svm_queue_t * q, u8 * elem);
int
vl_client_connect (const char *name, int ctx_quota, int input_queue_size)
{
pthread_mutex_lock (&svm->mutex);
oldheap = svm_push_data_heap (svm);
- vl_input_queue =
- svm_queue_init (input_queue_size, sizeof (uword), getpid (), 0);
- pthread_mutex_unlock (&svm->mutex);
+ vl_input_queue = svm_queue_alloc_and_init (input_queue_size, sizeof (uword),
+ getpid ());
svm_pop_heap (oldheap);
+ pthread_mutex_unlock (&svm->mutex);
am->my_client_index = ~0;
am->my_registration = 0;
am->vl_input_queue = vl_input_queue;
mp = vl_msg_api_alloc (sizeof (vl_api_memclnt_create_t));
- memset (mp, 0, sizeof (*mp));
+ clib_memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = ntohs (VL_API_MEMCLNT_CREATE);
mp->ctx_quota = ctx_quota;
mp->input_queue = (uword) vl_input_queue;
for (i = 0; i < 1000; i++)
{
qstatus = svm_queue_sub (vl_input_queue, (u8 *) & rp,
- 1 /* nowait */ );
+ SVM_Q_NOWAIT, 0);
if (qstatus == 0)
goto read_one_msg;
ts.tv_sec = 0;
}
void
-vl_client_disconnect (void)
+vl_client_send_disconnect (u8 do_cleanup)
{
vl_api_memclnt_delete_t *mp;
- vl_api_memclnt_delete_reply_t *rp;
- svm_queue_t *vl_input_queue;
vl_shmem_hdr_t *shmem_hdr;
- time_t begin;
api_main_t *am = &api_main;
ASSERT (am->vlib_rp);
shmem_hdr = am->shmem_hdr;
ASSERT (shmem_hdr && shmem_hdr->vl_input_queue);
- vl_input_queue = am->vl_input_queue;
-
mp = vl_msg_api_alloc (sizeof (vl_api_memclnt_delete_t));
- memset (mp, 0, sizeof (*mp));
+ clib_memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = ntohs (VL_API_MEMCLNT_DELETE);
mp->index = am->my_client_index;
mp->handle = (uword) am->my_registration;
+ mp->do_cleanup = do_cleanup;
vl_msg_api_send_shmem (shmem_hdr->vl_input_queue, (u8 *) & mp);
+}
+
+int
+vl_client_disconnect (void)
+{
+ vl_api_memclnt_delete_reply_t *rp;
+ svm_queue_t *vl_input_queue;
+ api_main_t *am = &api_main;
+ time_t begin;
+
+ vl_input_queue = am->vl_input_queue;
+ vl_client_send_disconnect (0 /* wait for reply */ );
/*
* Have to be careful here, in case the client is disconnecting
* because e.g. the vlib process died, or is unresponsive.
*/
-
begin = time (0);
while (1)
{
am->my_client_index = ~0;
am->my_registration = 0;
am->shmem_hdr = 0;
- break;
+ return -1;
}
- if (svm_queue_sub (vl_input_queue, (u8 *) & rp, 1) < 0)
+ if (svm_queue_sub (vl_input_queue, (u8 *) & rp, SVM_Q_NOWAIT, 0) < 0)
continue;
/* drain the queue */
vl_msg_api_handler ((void *) rp);
break;
}
+
+ vl_api_name_and_crc_free ();
+ return 0;
}
/**
shmem_hdr = am->shmem_hdr;
rmp = vl_msg_api_alloc_as_if_client (sizeof (*rmp));
- memset (rmp, 0, sizeof (*rmp));
+ clib_memset (rmp, 0, sizeof (*rmp));
rmp->_vl_msg_id = ntohs (VL_API_MEMCLNT_KEEPALIVE_REPLY);
rmp->context = mp->context;
vl_msg_api_send_shmem (shmem_hdr->vl_input_queue, (u8 *) & rmp);
#undef _
}
-
int
vl_client_api_map (const char *region_name)
{
void
vl_client_api_unmap (void)
{
- vl_unmap_shmem ();
+ vl_unmap_shmem_client ();
+}
+
+u8
+vl_mem_client_is_connected (void)
+{
+ return (memory_client_main.connected_to_vlib != 0);
}
static int
connect_to_vlib_internal (const char *svm_name,
const char *client_name,
- int rx_queue_size, int want_pthread, int do_map)
+ int rx_queue_size, void *(*thread_fn) (void *),
+ int do_map)
{
int rv = 0;
memory_client_main_t *mm = &memory_client_main;
+ api_main_t *am = &api_main;
if (do_map && (rv = vl_client_api_map (svm_name)))
{
/* Start the rx queue thread */
- if (want_pthread)
+ if (thread_fn)
{
rv = pthread_create (&mm->rx_thread_handle,
- NULL /*attr */ , rx_thread_fn, 0);
+ NULL /*attr */ , thread_fn, 0);
if (rv)
- clib_warning ("pthread_create returned %d", rv);
+ {
+ clib_warning ("pthread_create returned %d", rv);
+ am->rx_thread_handle = 0;
+ }
+ else
+ {
+ am->rx_thread_handle = mm->rx_thread_handle;
+ }
}
mm->connected_to_vlib = 1;
const char *client_name, int rx_queue_size)
{
return connect_to_vlib_internal (svm_name, client_name, rx_queue_size,
- 1 /* want pthread */ ,
- 1 /* do map */ );
+ rx_thread_fn, 1 /* do map */ );
}
int
int rx_queue_size)
{
return connect_to_vlib_internal (svm_name, client_name, rx_queue_size,
- 0 /* want pthread */ ,
+ 0 /* no rx_thread_fn */ ,
1 /* do map */ );
}
const char *client_name, int rx_queue_size)
{
return connect_to_vlib_internal (svm_name, client_name, rx_queue_size,
- 1 /* want pthread */ ,
+ rx_thread_fn, 0 /* dont map */ );
+}
+
+int
+vl_client_connect_to_vlib_no_rx_pthread_no_map (const char *svm_name,
+ const char *client_name,
+ int rx_queue_size)
+{
+ return connect_to_vlib_internal (svm_name, client_name, rx_queue_size,
+ 0 /* want pthread */ ,
0 /* dont map */ );
}
-void
-vl_client_disconnect_from_vlib (void)
+int
+vl_client_connect_to_vlib_thread_fn (const char *svm_name,
+ const char *client_name,
+ int rx_queue_size,
+ void *(*thread_fn) (void *))
+{
+ return connect_to_vlib_internal (svm_name, client_name, rx_queue_size,
+ thread_fn, 1 /* do map */ );
+}
+
+
+static void
+disconnect_from_vlib_internal (u8 do_unmap)
{
memory_client_main_t *mm = &memory_client_main;
api_main_t *am = &api_main;
if (mm->connected_to_vlib)
{
vl_client_disconnect ();
- vl_client_api_unmap ();
+ if (do_unmap)
+ vl_client_api_unmap ();
}
- memset (mm, 0, sizeof (*mm));
+ clib_memset (mm, 0, sizeof (*mm));
+}
+
+void
+vl_client_disconnect_from_vlib (void)
+{
+ disconnect_from_vlib_internal (1);
+}
+
+void
+vl_client_disconnect_from_vlib_no_unmap (void)
+{
+ disconnect_from_vlib_internal (0);
}
static void vl_api_get_first_msg_id_reply_t_handler
if (strlen (plugin_name) + 1 > sizeof (mp->name))
return (rv);
- memset (&clib_time, 0, sizeof (clib_time));
+ clib_memset (&clib_time, 0, sizeof (clib_time));
clib_time_init (&clib_time);
/* Push this plugin's first_msg_id_reply handler */
if (!am->my_registration)
{
mp = vl_socket_client_msg_alloc (sizeof (*mp));
- memset (mp, 0, sizeof (*mp));
+ clib_memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = ntohs (VL_API_GET_FIRST_MSG_ID);
mp->client_index = am->my_client_index;
strncpy ((char *) mp->name, plugin_name, sizeof (mp->name) - 1);
else
{
mp = vl_msg_api_alloc (sizeof (*mp));
- memset (mp, 0, sizeof (*mp));
+ clib_memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = ntohs (VL_API_GET_FIRST_MSG_ID);
mp->client_index = am->my_client_index;
strncpy ((char *) mp->name, plugin_name, sizeof (mp->name) - 1);
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