FS-4064 mod_posix_timer workaround of CentOS 5 glibc problem

src/mod/timers/mod_posix_timer/test/Makefile

 all:
-	gcc ../mod_posix_timer.c main.c switch.c -I. -o timer_test -lpthread -lrt -g -DLOG_LEVEL=-1
+	gcc ../mod_posix_timer.c main.c switch.c -I. -o timer_test -lpthread -lrt -lm -g -DLOG_LEVEL=-1
 
 clean:
 	-rm timer_test

src/mod/timers/mod_posix_timer/test/switch.c

@@ -42,13 +42,17 @@ switch_status_t switch_thread_cond_create(switch_thread_cond_t **cond, switch_me
 	return pthread_cond_init(*cond, NULL);
 }
 
-switch_status_t switch_thread_cond_timedwait(switch_thread_cond_t *cond, switch_mutex_t *mutex, int wait)
+switch_status_t switch_thread_cond_timedwait(switch_thread_cond_t *cond, switch_mutex_t *mutex, long wait)
 {
-	struct timespec dur = { 0, 0 };
-	clock_gettime(CLOCK_REALTIME, &dur);
-	dur.tv_sec = wait / 1000000000;
-	dur.tv_nsec = wait % 1000000000; 
-	return pthread_cond_timedwait(cond, mutex, &dur);
+	struct timespec abs_time = { 0, 0 };
+	/* add wait duration to current time (wait is in microseconds, pthreads wants nanosecond resolution) */
+	clock_gettime(CLOCK_REALTIME, &abs_time);
+	abs_time.tv_sec += wait / 1000000;
+	abs_time.tv_nsec += (wait % 1000000) * 1000;
+	/* handle overflow of tv_nsec */
+	abs_time.tv_sec += abs_time.tv_nsec / 1000000000;
+	abs_time.tv_nsec = abs_time.tv_nsec % 1000000000;
+	return pthread_cond_timedwait(cond, mutex, &abs_time);
 }
 
 switch_status_t switch_thread_cond_broadcast(switch_thread_cond_t *cond)

src/mod/timers/mod_posix_timer/test/switch.h

@@ -9,12 +9,15 @@
 #define SWITCH_STATUS_SUCCESS 0
 #define SWITCH_STATUS_GENERR 1
 #define SWITCH_STATUS_FALSE 2
+#define SWITCH_STATUS_TERM 3
 
 #define SWITCH_MUTEX_NESTED 1
 
 #define SWITCH_CHANNEL_LOG 0
 
+#define SWITCH_LOG_DEBUG 0
 #define SWITCH_LOG_INFO 0
+#define SWITCH_LOG_ERROR 1
 
 typedef int switch_status_t;
 typedef size_t switch_size_t;
@@ -113,7 +116,7 @@ switch_status_t switch_mutex_init(switch_mutex_t **mutex, int flags, switch_memo
 
 switch_status_t switch_thread_cond_create(switch_thread_cond_t **cond, switch_memory_pool_t *pool);
 
-switch_status_t switch_thread_cond_timedwait(switch_thread_cond_t *cond, switch_mutex_t *mutex, int wait);
+switch_status_t switch_thread_cond_timedwait(switch_thread_cond_t *cond, switch_mutex_t *mutex, long wait);
 
 switch_status_t switch_thread_cond_broadcast(switch_thread_cond_t *cond);