ovs-thread: Add support for various thread-related assertions.

[sliver-openvswitch.git] / lib / command-line.c

diff --git a/lib/command-line.c b/lib/command-line.c
index 76a4e74..7800c0b 100644 (file)
--- a/lib/command-line.c
+++ b/lib/command-line.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010, 2011 Nicira, Inc.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2013 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,6 +19,7 @@
 #include <getopt.h>
 #include <limits.h>
 #include <stdlib.h>
+#include "ovs-thread.h"
 #include "util.h"
 #include "vlog.h"
 
@@ -110,6 +111,7 @@ proctitle_init(int argc, char **argv)
 {
     int i;
 
+    assert_single_threaded();
     if (!argc || !argv[0]) {
         /* This situation should never occur, but... */
         return;
@@ -140,8 +142,8 @@ proctitle_init(int argc, char **argv)
     }
 }
 
-/* Changes the name of the process, as shown by "ps", to 'format', which is
- * formatted as if by printf(). */
+/* Changes the name of the process, as shown by "ps", to the program name
+ * followed by 'format', which is formatted as if by printf(). */
 void
 proctitle_set(const char *format, ...)
 {
@@ -157,7 +159,10 @@ proctitle_set(const char *format, ...)
     }
 
     va_start(args, format);
-    n = vsnprintf(argv_start, argv_size, format, args);
+    n = snprintf(argv_start, argv_size, "%s: ", program_name);
+    if (n < argv_size) {
+        n += vsnprintf(argv_start + n, argv_size - n, format, args);
+    }
     if (n >= argv_size) {
         /* The name is too long, so add an ellipsis at the end. */
         strcpy(&argv_start[argv_size - 4], "...");
@@ -187,10 +192,13 @@ proctitle_init(int argc OVS_UNUSED, char **argv OVS_UNUSED)
 {
 }
 
+#if !(defined(__FreeBSD__) || defined(__NetBSD__))
+/* On these platforms we #define this to setproctitle. */
 void
 proctitle_set(const char *format OVS_UNUSED, ...)
 {
 }
+#endif
 
 void
 proctitle_restore(void)