api: multiple connections per process

[vpp.git] / src / vat / main.c

diff --git a/src/vat/main.c b/src/vat/main.c
index e2c9b70..996fb1e 100644 (file)
--- a/src/vat/main.c
+++ b/src/vat/main.c
@@ -15,6 +15,7 @@
 #include "vat.h"
 #include "plugin.h"
 #include <signal.h>
+#include <limits.h>
 
 vat_main_t vat_main;
 
@@ -26,22 +27,11 @@ vat_suspend (vlib_main_t * vm, f64 interval)
   /* do nothing in the standalone version, just return */
 }
 
-void
-fformat_append_cr (FILE * ofp, const char *fmt, ...)
-{
-  va_list va;
-
-  va_start (va, fmt);
-  (void) va_fformat (ofp, (char *) fmt, &va);
-  va_end (va);
-  fformat (ofp, "\n");
-}
-
 int
 connect_to_vpe (char *name)
 {
   vat_main_t *vam = &vat_main;
-  api_main_t *am = &api_main;
+  api_main_t *am = vlibapi_get_main ();
 
   if (vl_client_connect_to_vlib ("/vpe-api", name, 32) < 0)
     return -1;
@@ -117,7 +107,7 @@ do_one_file (vat_main_t * vam)
       vec_free (this_cmd);
 
       this_cmd =
-       (u8 *) clib_macro_eval (&vam->macro_main, (char *) vam->inbuf,
+       (u8 *) clib_macro_eval (&vam->macro_main, (i8 *) vam->inbuf,
                                1 /* complain */ );
 
       if (vam->exec_mode == 0)
@@ -195,7 +185,7 @@ do_one_file (vat_main_t * vam)
       if (vam->client_index_invalid)
        {
          vat_main_t *vam = &vat_main;
-         api_main_t *am = &api_main;
+         api_main_t *am = vlibapi_get_main ();
 
          vam->vl_input_queue = am->shmem_hdr->vl_input_queue;
          vam->my_client_index = am->my_client_index;
@@ -264,7 +254,7 @@ setup_signal_handlers (void)
 
   for (i = 1; i < 32; i++)
     {
-      memset (&sa, 0, sizeof (sa));
+      clib_memset (&sa, 0, sizeof (sa));
       sa.sa_sigaction = (void *) signal_handler;
       sa.sa_flags = SA_SIGINFO;
 
@@ -281,6 +271,7 @@ setup_signal_handlers (void)
          /* ignore SIGPIPE, SIGCHLD */
        case SIGPIPE:
        case SIGCHLD:
+       case SIGWINCH:
          sa.sa_sigaction = (void *) SIG_IGN;
          break;
 
@@ -294,6 +285,36 @@ setup_signal_handlers (void)
     }
 }
 
+static void
+vat_find_plugin_path ()
+{
+  char *p, path[PATH_MAX];
+  int rv;
+  u8 *s;
+
+  /* find executable path */
+  if ((rv = readlink ("/proc/self/exe", path, PATH_MAX - 1)) == -1)
+    return;
+
+  /* readlink doesn't provide null termination */
+  path[rv] = 0;
+
+  /* strip filename */
+  if ((p = strrchr (path, '/')) == 0)
+    return;
+  *p = 0;
+
+  /* strip bin/ */
+  if ((p = strrchr (path, '/')) == 0)
+    return;
+  *p = 0;
+
+  s = format (0, "%s/lib/" CLIB_TARGET_TRIPLET "/vpp_api_test_plugins:"
+             "%s/lib/vpp_api_test_plugins", path, path);
+  vec_add1 (s, 0);
+  vat_plugin_path = (char *) s;
+}
+
 int
 main (int argc, char **argv)
 {
@@ -305,17 +326,10 @@ main (int argc, char **argv)
   u8 *this_input_file;
   u8 interactive = 1;
   u8 json_output = 0;
-  u8 *heap;
-  mheap_t *h;
   int i;
+  f64 timeout;
 
-  clib_mem_init (0, 128 << 20);
-
-  heap = clib_mem_get_per_cpu_heap ();
-  h = mheap_header (heap);
-
-  /* make the main heap thread-safe */
-  h->flags |= MHEAP_FLAG_THREAD_SAFE;
+  clib_mem_init_thread_safe (0, 128 << 20);
 
   clib_macro_init (&vam->macro_main);
   clib_macro_add_builtin (&vam->macro_main, "current_file",
@@ -327,6 +341,8 @@ main (int argc, char **argv)
   vec_validate (vam->cmd_reply, 0);
   vec_reset_length (vam->cmd_reply);
 
+  vat_find_plugin_path ();
+
   unformat_init_command_line (a, argv);
 
   while (unformat_check_input (a) != UNFORMAT_END_OF_INPUT)
@@ -388,7 +404,7 @@ main (int argc, char **argv)
   if (vam->socket_name && vat_socket_connect (vam))
     fformat (stderr, "WARNING: socket connection failed");
 
-  if (vam->socket_client_main.socket_fd == 0
+  if ((!vam->socket_client_main || vam->socket_client_main->socket_fd == 0)
       && connect_to_vpe ("vpp_api_test") < 0)
     {
       svm_region_exit ();
@@ -432,6 +448,18 @@ main (int argc, char **argv)
       fclose (vam->ifp);
     }
 
+  /*
+   * Particularly when running a script, don't be in a hurry to leave.
+   * A reply message queued to this process will end up constipating
+   * the allocation rings.
+   */
+  timeout = vat_time_now (vam) + 2.0;
+  while (vam->result_ready == 0 && vat_time_now (vam) < timeout)
+    ;
+
+  if (vat_time_now (vam) > timeout)
+    clib_warning ("BUG: message reply spin-wait timeout");
+
   vl_client_disconnect_from_vlib ();
   exit (0);
 }