From fbd92a913e1cf59593bfc18c6ca43081a86b9b41 Mon Sep 17 00:00:00 2001
From: Karl Heyes <karl@xiph.org>
Date: Mon, 26 Jan 2004 21:49:07 +0000
Subject: [PATCH] add localtime_r checks, useful the threads

svn path=/trunk/icecast/; revision=5785
---
 configure.in |  2 +-
 src/util.c   | 20 ++++++++++++++++++++
 src/util.h   |  5 +++++
 3 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/configure.in b/configure.in
index bb5a709c..e68471a8 100644
--- a/configure.in
+++ b/configure.in
@@ -62,7 +62,7 @@ dnl Checks for typedefs, structures, and compiler characteristics.
 dnl Check for types
 
 dnl Checks for library functions.
-AC_CHECK_FUNCS(nanosleep poll)
+AC_CHECK_FUNCS(localtime_r nanosleep poll)
 XIPH_NET
 
 dnl -- configure options --
diff --git a/src/util.c b/src/util.c
index 5c36fd72..9d586568 100644
--- a/src/util.c
+++ b/src/util.c
@@ -24,6 +24,7 @@
 #endif
 
 #include "net/sock.h"
+#include "thread/thread.h"
 
 #include "cfgfile.h"
 #include "util.h"
@@ -587,3 +588,22 @@ char *util_dict_urlencode(util_dict *dict, char delim)
     return res;
 }
 
+#ifndef HAVE_LOCALTIME_R
+struct tm *localtime_r (const time_t *timep, struct tm *result)
+{
+     static mutex_t localtime_lock;
+     static int initialised = 0;
+     struct tm *tm;
+
+     if (initialised == 0)
+     {
+         thread_mutex_create (&localtime_lock);
+         initialised = 1;
+     }
+     thread_mutex_lock (&localtime_lock);
+     tm = localtime (timep);
+     memcpy (result, tm, sizeof (*result));
+     thread_mutex_unlock (&localtime_lock);
+     return result;
+}
+#endif
diff --git a/src/util.h b/src/util.h
index a41d6b92..820df714 100644
--- a/src/util.h
+++ b/src/util.h
@@ -32,4 +32,9 @@ void util_dict_free(util_dict *dict);
 int util_dict_set(util_dict *dict, const char *key, const char *val);
 const char *util_dict_get(util_dict *dict, const char *key);
 char *util_dict_urlencode(util_dict *dict, char delim);
+
+#ifndef HAVE_LOCALTIME_R
+struct tm *localtime_r (const time_t *timep, struct tm *result);
+#endif
+
 #endif  /* __UTIL_H__ */