-reduce stat calls by caching result of GNUNET_OS_installation_get_path

1 files changed, 8 insertions, 5 deletions

diff --git a/src/util/os_installation.c b/src/util/os_installation.c
index a94798d8d..30e729dc6 100644
--- a/src/util/os_installation.c
+++ b/src/util/os_installation.c
@@ -627,21 +627,24 @@ GNUNET_OS_installation_get_path (enum GNUNET_OS_InstallationPathKind dirkind)
 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;
 }