Added debug_util.h with threadsafe localtime (localtime_r does not exist on windows.)

1 files changed, 29 insertions, 1 deletions

diff --git a/debug.c b/debug.c
index 5c04b61..70a4df1 100644
--- a/debug.c
+++ b/debug.c
@@ -81,12 +81,38 @@ struct dbg_config_t {
   */
 }; 
 
+#ifdef WITH_DBG_MUTEX
+  pthread_mutex_t localtime_mutex;
+#endif
+
+struct tm *dbg_localtime(const time_t *timep, struct tm *result)
+{
+  struct tm *res = NULL;
+#ifdef WITH_DBG_MUTEX
+  pthread_mutex_lock(&localtime_mutex);
+#endif
+
+	if(timep && result) {
+    memcpy(result,localtime(timep),sizeof(*result)); 
+    res = result;
+  }
+
+#ifdef WITH_DBG_MUTEX
+  pthread_mutex_unlock(&localtime_mutex);
+#endif
+
+  return res;
+}
+
+
 static void dbg_mutex_init()
 {
 #ifdef WITH_DBG_MUTEX
   if(dbg_config.flags & DBG_FLAG_USE_MUTEX) {
     pthread_mutex_init(&dbg_config.mutex, NULL);
   }
+
+  pthread_mutex_init(&localtime_mutex, NULL);
 #endif
 }
 
@@ -117,6 +143,8 @@ static void dbg_mutex_close()
     dbg_mutex_unlock();
     pthread_mutex_destroy(&dbg_config.mutex);
   }
+  
+  pthread_mutex_destroy(&localtime_mutex);
 #endif
 }
 
@@ -206,7 +234,7 @@ static int dbg_create_header(char *hdr, size_t size)
 {
   time_t rawtime = time(NULL);
   struct tm t;
-  localtime_r(&rawtime, &t);
+  dbg_localtime(&rawtime, &t);
 
   return snprintf(hdr, size,
                   "%d-%02d-%02d %02d:%02d:%02d",