api: multiple connections per process

[vpp.git] / src / vlibapi / api_common.h

diff --git a/src/vlibapi/api_common.h b/src/vlibapi/api_common.h
index 324b260..c3ef573 100644 (file)
--- a/src/vlibapi/api_common.h
+++ b/src/vlibapi/api_common.h
@@ -25,8 +25,10 @@
  */
 
 #include <vppinfra/clib_error.h>
+#include <vppinfra/elog.h>
+#include <vlibapi/api_types.h>
 #include <svm/svm_common.h>
-#include <vlibmemory/unix_shared_memory_queue.h>
+#include <svm/queue.h>
 
 /** API registration types
  */
@@ -56,7 +58,7 @@ typedef struct vl_api_registration_
   int unanswered_pings;
 
   /** shared memory only: pointer to client input queue */
-  unix_shared_memory_queue_t *vl_input_queue;
+  svm_queue_t *vl_input_queue;
   svm_region_t *vlib_rp;
   void *shmem_hdr;
 
@@ -64,7 +66,7 @@ typedef struct vl_api_registration_
   u32 clib_file_index;         /**< Socket only: file index */
   i8 *unprocessed_input;       /**< Socket only: pending input */
   u32 unprocessed_msg_length;  /**< Socket only: unprocssed length */
-  u8 *output_vector;           /**< Socket only: output vecto  */
+  u8 *output_vector;           /**< Socket only: output vector */
   int *additional_fds_to_close;
 
   /* socket client only */
@@ -72,6 +74,7 @@ typedef struct vl_api_registration_
   u32 server_index;            /**< Socket client only: server index */
 } vl_api_registration_t;
 
+#define VL_API_INVALID_FI ((u32)~0)
 
 /** Trace configuration for a single message */
 typedef struct
@@ -133,12 +136,32 @@ typedef struct
 /** Message header structure */
 typedef struct msgbuf_
 {
-  unix_shared_memory_queue_t *q; /**< message allocated in this shmem ring  */
+  svm_queue_t *q; /**< message allocated in this shmem ring  */
   u32 data_len;                         /**< message length not including header  */
   u32 gc_mark_timestamp;        /**< message garbage collector mark TS  */
   u8 data[0];                   /**< actual message begins here  */
 } msgbuf_t;
 
+CLIB_NOSANITIZE_ADDR static inline void
+VL_MSG_API_UNPOISON (const void *a)
+{
+  const msgbuf_t *m = &((const msgbuf_t *) a)[-1];
+  CLIB_MEM_UNPOISON (m, sizeof (*m) + ntohl (m->data_len));
+}
+
+CLIB_NOSANITIZE_ADDR static inline void
+VL_MSG_API_SVM_QUEUE_UNPOISON (const svm_queue_t * q)
+{
+  CLIB_MEM_UNPOISON (q, sizeof (*q) + q->elsize * q->maxsize);
+}
+
+static inline void
+VL_MSG_API_POISON (const void *a)
+{
+  const msgbuf_t *m = &((const msgbuf_t *) a)[-1];
+  CLIB_MEM_POISON (m, sizeof (*m) + ntohl (m->data_len));
+}
+
 /* api_shared.c prototypes */
 void vl_msg_api_handler (void *the_msg);
 void vl_msg_api_handler_no_free (void *the_msg);
@@ -155,7 +178,7 @@ void vl_msg_api_set_handlers (int msg_id, char *msg_name,
 void vl_msg_api_clean_handlers (int msg_id);
 void vl_msg_api_config (vl_msg_api_msg_config_t *);
 void vl_msg_api_set_cleanup_handler (int msg_id, void *fp);
-void vl_msg_api_queue_handler (unix_shared_memory_queue_t * q);
+void vl_msg_api_queue_handler (svm_queue_t * q);
 
 void vl_msg_api_barrier_sync (void) __attribute__ ((weak));
 void vl_msg_api_barrier_release (void) __attribute__ ((weak));
@@ -176,7 +199,9 @@ int vl_msg_api_pd_handler (void *mp, int rv);
 
 void vl_msg_api_set_first_available_msg_id (u16 first_avail);
 u16 vl_msg_api_get_msg_ids (const char *name, int n);
-u32 vl_api_get_msg_index (u8 * name_and_crc);
+u32 vl_msg_api_get_msg_index (u8 * name_and_crc);
+void *vl_msg_push_heap (void);
+void vl_msg_pop_heap (void *oldheap);
 
 typedef clib_error_t *(vl_msg_api_init_function_t) (u32 client_index);
 
@@ -186,6 +211,14 @@ typedef struct _vl_msg_api_init_function_list_elt
   vl_msg_api_init_function_t *f;
 } _vl_msg_api_function_list_elt_t;
 
+typedef struct
+{
+  u32 major;
+  u32 minor;
+  u32 patch;
+  char name[64];
+} api_version_t;
+
 /** API main structure, used by both vpp and binary API clients */
 typedef struct
 {
@@ -239,9 +272,12 @@ typedef struct
   /** Current process PID */
   int our_pid;
 
-  /** Binary api segment descriptor */
+  /** Current binary api segment descriptor */
   svm_region_t *vlib_rp;
 
+  /** Primary api segment descriptor */
+  svm_region_t *vlib_primary_rp;
+
   /** Vector of all mapped shared-VM segments */
   svm_region_t **vlib_private_rps;
   svm_region_t **mapped_shmem_regions;
@@ -286,7 +322,7 @@ typedef struct
   u64 api_pvt_heap_size;
 
   /** Peer input queue pointer */
-  unix_shared_memory_queue_t *vl_input_queue;
+  svm_queue_t *vl_input_queue;
 
   /**
    * All VLIB-side message handlers use my_client_index to identify
@@ -300,15 +336,15 @@ typedef struct
    */
   vl_api_registration_t *my_registration;
 
-  /** (Historical) signal-based queue non-empty signal, to be removed */
-  i32 vlib_signal;
-
   /** vpp/vlib input queue length */
   u32 vlib_input_queue_length;
 
   /** client message index hash table */
   uword *msg_index_by_name_and_crc;
 
+  /** api version list */
+  api_version_t *api_version_list;
+
   /** Shared VM binary API region name */
   const char *region_name;
 
@@ -324,9 +360,23 @@ typedef struct
   /** List of API client reaper functions */
   _vl_msg_api_function_list_elt_t *reaper_function_registrations;
 
+  /** Bin API thread handle */
+  pthread_t rx_thread_handle;
+
+  /** event log */
+  elog_main_t *elog_main;
+  int elog_trace_api_messages;
+
 } api_main_t;
 
-extern api_main_t api_main;
+extern __thread api_main_t *my_api_main;
+extern api_main_t api_global_main;
+
+always_inline api_main_t *
+vlibapi_get_main (void)
+{
+  return my_api_main;
+}
 
 #endif /* included_api_common_h */