From 771465fed0cf50ee2dd790723245fc091699c324 Mon Sep 17 00:00:00 2001
From: rpj <rpj>
Date: Mon, 17 May 2004 01:38:02 +0000
Subject: re-indentation, bug fixes, hooks for pre-emptive async cancelation

---
 pthread_cond_signal.c | 96 +++++++++++++++++++++++++--------------------------
 1 file changed, 48 insertions(+), 48 deletions(-)

(limited to 'pthread_cond_signal.c')

diff --git a/pthread_cond_signal.c b/pthread_cond_signal.c
index 156c0d0..84ace67 100644
--- a/pthread_cond_signal.c
+++ b/pthread_cond_signal.c
@@ -167,8 +167,7 @@
 
 
 static INLINE int
-ptw32_cond_unblock (pthread_cond_t * cond,
-                    int unblockAll)
+ptw32_cond_unblock (pthread_cond_t * cond, int unblockAll)
      /*
       * Notes.
       *
@@ -209,69 +208,70 @@ ptw32_cond_unblock (pthread_cond_t * cond,
       return 0;
     }
 
-  if ((result = pthread_mutex_lock(&(cv->mtxUnblockLock))) != 0)
+  if ((result = pthread_mutex_lock (&(cv->mtxUnblockLock))) != 0)
     {
       return result;
     }
 
-  if ( 0 != cv->nWaitersToUnblock )
+  if (0 != cv->nWaitersToUnblock)
     {
-      if ( 0 == cv->nWaitersBlocked )
-        {
-          return pthread_mutex_unlock( &(cv->mtxUnblockLock) );
-        }
+      if (0 == cv->nWaitersBlocked)
+	{
+	  return pthread_mutex_unlock (&(cv->mtxUnblockLock));
+	}
       if (unblockAll)
-        {
-          cv->nWaitersToUnblock += (nSignalsToIssue = cv->nWaitersBlocked);
-          cv->nWaitersBlocked = 0;
-        }
+	{
+	  cv->nWaitersToUnblock += (nSignalsToIssue = cv->nWaitersBlocked);
+	  cv->nWaitersBlocked = 0;
+	}
       else
-        {
-          nSignalsToIssue = 1;
-          cv->nWaitersToUnblock++;
-          cv->nWaitersBlocked--;
-        }
+	{
+	  nSignalsToIssue = 1;
+	  cv->nWaitersToUnblock++;
+	  cv->nWaitersBlocked--;
+	}
     }
-  else if ( cv->nWaitersBlocked > cv->nWaitersGone ) 
+  else if (cv->nWaitersBlocked > cv->nWaitersGone)
     {
-      if (sem_wait( &(cv->semBlockLock) ) != 0)
-        {
-          result = errno;
-          (void) pthread_mutex_unlock( &(cv->mtxUnblockLock) );
-          return result;
-        }
-      if ( 0 != cv->nWaitersGone )
-        {
-          cv->nWaitersBlocked -= cv->nWaitersGone;
-          cv->nWaitersGone = 0;
-        }
+      /* Use the non-cancellable version of sem_wait() */
+      if (ptw32_semwait (&(cv->semBlockLock)) != 0)
+	{
+	  result = errno;
+	  (void) pthread_mutex_unlock (&(cv->mtxUnblockLock));
+	  return result;
+	}
+      if (0 != cv->nWaitersGone)
+	{
+	  cv->nWaitersBlocked -= cv->nWaitersGone;
+	  cv->nWaitersGone = 0;
+	}
       if (unblockAll)
-        {
-          nSignalsToIssue = cv->nWaitersToUnblock = cv->nWaitersBlocked;
-          cv->nWaitersBlocked = 0;
-        }
+	{
+	  nSignalsToIssue = cv->nWaitersToUnblock = cv->nWaitersBlocked;
+	  cv->nWaitersBlocked = 0;
+	}
       else
-        {
-          nSignalsToIssue = cv->nWaitersToUnblock = 1;
-          cv->nWaitersBlocked--;
-        }
+	{
+	  nSignalsToIssue = cv->nWaitersToUnblock = 1;
+	  cv->nWaitersBlocked--;
+	}
     }
   else
     {
-      return pthread_mutex_unlock( &(cv->mtxUnblockLock) );
+      return pthread_mutex_unlock (&(cv->mtxUnblockLock));
     }
 
-  if ((result = pthread_mutex_unlock( &(cv->mtxUnblockLock) )) == 0)
+  if ((result = pthread_mutex_unlock (&(cv->mtxUnblockLock))) == 0)
     {
-      if (sem_post_multiple( &(cv->semBlockQueue), nSignalsToIssue ) != 0)
-        {
-          result = errno;
-        }
+      if (sem_post_multiple (&(cv->semBlockQueue), nSignalsToIssue) != 0)
+	{
+	  result = errno;
+	}
     }
 
   return result;
 
-}                               /* ptw32_cond_unblock */
+}				/* ptw32_cond_unblock */
 
 int
 pthread_cond_signal (pthread_cond_t * cond)
@@ -311,9 +311,9 @@ pthread_cond_signal (pthread_cond_t * cond)
   /*
    * The '0'(FALSE) unblockAll arg means unblock ONE waiter.
    */
-  return (ptw32_cond_unblock(cond, 0));
+  return (ptw32_cond_unblock (cond, 0));
 
-}                               /* pthread_cond_signal */
+}				/* pthread_cond_signal */
 
 int
 pthread_cond_broadcast (pthread_cond_t * cond)
@@ -350,6 +350,6 @@ pthread_cond_broadcast (pthread_cond_t * cond)
   /*
    * The TRUE unblockAll arg means unblock ALL waiters.
    */
-  return (ptw32_cond_unblock(cond, PTW32_TRUE));
+  return (ptw32_cond_unblock (cond, PTW32_TRUE));
 
-}                               /* pthread_cond_broadcast */
+}				/* pthread_cond_broadcast */
-- 
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