Change windows pthread_cond_timedwait to use an absolute time value

include/my_pthread.h:
  Calculate absolute time value int set_timespec_*
mysys/my_wincond.c:
  Use absolute timevalue in pthread_cond_timedwwait

1 files changed, 10 insertions, 9 deletions

diff --git a/mysys/my_wincond.c b/mysys/my_wincond.c
index 327addff2cc..b56dacc135a 100644
--- a/mysys/my_wincond.c
+++ b/mysys/my_wincond.c
@@ -37,7 +37,7 @@ int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr)
 
 int pthread_cond_destroy(pthread_cond_t *cond)
 {
-	return CloseHandle(cond->semaphore) ? 0 : EINVAL;
+  return CloseHandle(cond->semaphore) ? 0 : EINVAL;
 }
 
 
@@ -51,6 +51,7 @@ int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
   return 0 ;
 }
 
+
 int pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex,
                            struct timespec *abstime)
 {
@@ -61,26 +62,26 @@ int pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex,
   GetSystemTimeAsFileTime(&now.ft);
 
   /*
-    - subtract start time from current time(values are in 100ns units
+    Calculate time left to abstime
+    - subtract start time from current time(values are in 100ns units)
     - convert to millisec by dividing with 10000
-    - subtract time since start from max timeout
   */
-  timeout= abstime->timeout_msec - (long)((now.i64 - abstime->start.i64) / 10000);
+  timeout= (long)((abstime->tv.i64 - now.i64) / 10000);
   
   /* Don't allow the timeout to be negative */
   if (timeout < 0)
-    timeout = 0L;
+    timeout= 0L;
 
   /*
-    Make sure the calucated time does not exceed original timeout
+    Make sure the calucated timeout does not exceed original timeout
     value which could cause "wait for ever" if system time changes
   */
-  if (timeout > abstime->timeout_msec)
-    timeout= abstime->timeout_msec;
+  if (timeout > abstime->max_timeout_msec)
+    timeout= abstime->max_timeout_msec;
 
   InterlockedIncrement(&cond->waiting);
   LeaveCriticalSection(mutex);
-  result=WaitForSingleObject(cond->semaphore,timeout);
+  result= WaitForSingleObject(cond->semaphore,timeout);
   InterlockedDecrement(&cond->waiting);
   EnterCriticalSection(mutex);