[GNUnet-SVN] r31039 - gnunet/src/util

[gnunet]

Author: grothoff
Date: 2013-12-04 13:48:32 +0100 (Wed, 04 Dec 2013)
New Revision: 31039

Modified:
   gnunet/src/util/os_installation.c
Log:
-reduce stat calls by caching result of GNUNET_OS_installation_get_path

Modified: gnunet/src/util/os_installation.c
===================================================================
--- gnunet/src/util/os_installation.c   2013-12-04 12:43:48 UTC (rev 31038)
+++ gnunet/src/util/os_installation.c   2013-12-04 12:48:32 UTC (rev 31039)
@@ -627,21 +627,24 @@
 char *
 GNUNET_OS_get_libexec_binary_path (const char *progname)
 {
+  static char *cache;
   char *libexecdir;
   char *binary;
 
-  if (DIR_SEPARATOR == progname[0])
+  if ( (DIR_SEPARATOR == progname[0]) ||
+       (GNUNET_YES == GNUNET_STRINGS_path_is_absolute (progname, GNUNET_NO, 
NULL, NULL)) )
     return GNUNET_strdup (progname);
-  if (GNUNET_YES == GNUNET_STRINGS_path_is_absolute (progname, GNUNET_NO, 
NULL, NULL))
-    return GNUNET_strdup (progname);
-  libexecdir = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_LIBEXECDIR);
+  if (NULL != cache)
+    libexecdir = cache;
+  else
+    libexecdir = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_LIBEXECDIR);
   if (NULL == libexecdir)
     return GNUNET_strdup (progname);
   GNUNET_asprintf (&binary,
                   "%s%s",
                   libexecdir,
                   progname);
-  GNUNET_free (libexecdir);
+  cache = libexecdir;
   return binary;
 }