PAPI: Use UNIX domain sockets instead of shared memory

[vpp.git] / src / vpp-api / client / client.c

diff --git a/src/vpp-api/client/client.c b/src/vpp-api/client/client.c
index f1488e2..68269bb 100644 (file)
--- a/src/vpp-api/client/client.c
+++ b/src/vpp-api/client/client.c
@@ -62,6 +62,7 @@ typedef struct {
   pthread_cond_t suspend_cv;
   pthread_cond_t resume_cv;
   pthread_mutex_t timeout_lock;
+  u8 timeout_loop;
   pthread_cond_t timeout_cv;
   pthread_cond_t timeout_cancel_cv;
   pthread_cond_t terminate_cv;
@@ -71,6 +72,7 @@ vac_main_t vac_main;
 vac_callback_t vac_callback;
 u16 read_timeout = 0;
 bool rx_is_running = false;
+bool timeout_thread_cancelled = false;
 
 /* Set to true to enable memory tracing */
 bool mem_trace = false;
@@ -115,6 +117,7 @@ init (void)
   pthread_cond_init(&pm->suspend_cv, NULL);
   pthread_cond_init(&pm->resume_cv, NULL);
   pthread_mutex_init(&pm->timeout_lock, NULL);
+  pm->timeout_loop = 1;
   pthread_cond_init(&pm->timeout_cv, NULL);
   pthread_cond_init(&pm->timeout_cancel_cv, NULL);
   pthread_cond_init(&pm->terminate_cv, NULL);
@@ -234,7 +237,7 @@ vac_timeout_thread_fn (void *arg)
   u16 timeout;
   int rv;
 
-  while (1)
+  while (pm->timeout_loop)
     {
       /* Wait for poke */
       pthread_mutex_lock(&pm->timeout_lock);
@@ -246,7 +249,7 @@ vac_timeout_thread_fn (void *arg)
       rv = pthread_cond_timedwait (&pm->timeout_cancel_cv,
                                   &pm->timeout_lock, &ts);
       pthread_mutex_unlock(&pm->timeout_lock);
-      if (rv == ETIMEDOUT)
+      if (rv == ETIMEDOUT && !timeout_thread_cancelled)
        {
          ep = vl_msg_api_alloc (sizeof (*ep));
          ep->_vl_msg_id = ntohs(VL_API_MEMCLNT_READ_TIMEOUT);
@@ -270,7 +273,7 @@ vac_rx_suspend (void)
       ep = vl_msg_api_alloc (sizeof (*ep));
       ep->_vl_msg_id = ntohs(VL_API_MEMCLNT_RX_THREAD_SUSPEND);
       vl_msg_api_send_shmem(am->vl_input_queue, (u8 *)&ep);
-      /* Wait for RX thread to tell us it has suspendend */
+      /* Wait for RX thread to tell us it has suspended */
       pthread_cond_wait(&pm->suspend_cv, &pm->queue_lock);
       rx_is_running = false;
     }
@@ -316,7 +319,7 @@ vac_connect (char * name, char * chroot_prefix, vac_callback_t cb,
     vl_set_memory_root_path (chroot_prefix);
 
   if ((rv = vl_client_api_map("/vpe-api"))) {
-    clib_warning ("vl_client_api map rv %d", rv);
+    clib_warning ("vl_client_api_map returned %d", rv);
     return rv;
   }
 
@@ -402,7 +405,8 @@ vac_disconnect (void)
   }
   if (pm->timeout_thread_handle) {
     /* cancel, wake then join the timeout thread */
-    pthread_cancel(pm->timeout_thread_handle);
+    pm->timeout_loop = 0;
+    timeout_thread_cancelled = true;
     set_timeout(0);
     pthread_join(pm->timeout_thread_handle, (void **) &junk);
   }
@@ -448,14 +452,11 @@ vac_read (char **p, int *l, u16 timeout)
     u16 msg_id = ntohs(*((u16 *)msg));
     switch (msg_id) {
     case VL_API_RX_THREAD_EXIT:
-      printf("Received thread exit\n");
       vl_msg_api_free((void *) msg);
       return -1;
     case VL_API_MEMCLNT_RX_THREAD_SUSPEND:
-      printf("Received thread suspend\n");
       goto error;
     case VL_API_MEMCLNT_READ_TIMEOUT:
-      printf("Received read timeout %ds\n", timeout);
       goto error;
     case VL_API_MEMCLNT_KEEPALIVE:
       /* Handle an alive-check ping from vpp. */
@@ -477,7 +478,7 @@ vac_read (char **p, int *l, u16 timeout)
       msgbuf = (msgbuf_t *)(((u8 *)msg) - offsetof(msgbuf_t, data));
       *l = ntohl(msgbuf->data_len);
       if (*l == 0) {
-       printf("Unregistered API message: %d\n", msg_id);
+       fprintf(stderr, "Unregistered API message: %d\n", msg_id);
        goto error;
       }
     }
@@ -487,7 +488,7 @@ vac_read (char **p, int *l, u16 timeout)
     unset_timeout();
 
   } else {
-    printf("Read failed with %d\n", rv);
+    fprintf(stderr, "Read failed with %d\n", rv);
   }
   return (rv);
 
@@ -506,7 +507,7 @@ typedef VL_API_PACKED(struct _vl_api_header {
   u32 client_index;
 }) vl_api_header_t;
 
-static unsigned int
+static u32
 vac_client_index (void)
 {
   return (api_main.my_client_index);
@@ -529,7 +530,7 @@ vac_write (char *p, int l)
   q = am->shmem_hdr->vl_input_queue;
   rv = svm_queue_add(q, (u8 *)&mp, 0);
   if (rv != 0) {
-    clib_warning("vpe_api_write fails: %d\n", rv);
+    fprintf(stderr, "vpe_api_write fails: %d\n", rv);
     /* Clear message */
     vac_free(mp);
   }