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_mutex_lock.c | 103 +++++++--------------------------------------------
 1 file changed, 14 insertions(+), 89 deletions(-)

(limited to 'pthread_mutex_lock.c')

diff --git a/pthread_mutex_lock.c b/pthread_mutex_lock.c
index ceeeb30..a59666a 100644
--- a/pthread_mutex_lock.c
+++ b/pthread_mutex_lock.c
@@ -35,88 +35,13 @@
  */
 
 #ifndef _UWIN
-#   include <process.h>
+//#   include <process.h>
 #endif
 #include "pthread.h"
 #include "implement.h"
 
-
-static INLINE int
-ptw32_semwait (sem_t * sem)
-     /*
-      * ------------------------------------------------------
-      * DESCRIPTION
-      *      This function waits on a POSIX semaphore. If the
-      *      semaphore value is greater than zero, it decreases
-      *      its value by one. If the semaphore value is zero, then
-      *      the calling thread (or process) is blocked until it can
-      *      successfully decrease the value.
-      *
-      *      Unlike sem_wait(), this routine is non-cancelable.
-      *
-      * RESULTS
-      * 	     0		     successfully decreased semaphore,
-      * 	     -1 	     failed, error in errno.
-      * ERRNO
-      * 	     EINVAL	     'sem' is not a valid semaphore,
-      * 	     ENOSYS	     semaphores are not supported,
-      * 	     EINTR	     the function was interrupted by a signal,
-      * 	     EDEADLK	     a deadlock condition was detected.
-      *
-      * ------------------------------------------------------
-      */
-{
-  int result = 0;
-
-  DWORD status;
-
-  if (sem == NULL)
-    {
-      result = EINVAL;
-    }
-  else
-    {
-
-#ifdef NEED_SEM
-
-      status = WaitForSingleObject( (*sem)->event, INFINITE );
-
-#else /* NEED_SEM */
-
-      status = WaitForSingleObject( (*sem)->sem, INFINITE );
-
-#endif
-
-      if (status == WAIT_OBJECT_0)
-	{
-
-#ifdef NEED_SEM
-
-	  ptw32_decrease_semaphore(sem);
-
-#endif /* NEED_SEM */
-
-	  return 0;
-	}
-      else
-	{
-	  result = EINVAL;
-	}
-    }
-
-  if (result != 0)
-    {
-      errno = result;
-      return -1;
-    }
-
-  return 0;
-
-}				/* ptw32_semwait */
-
-
 int
-pthread_mutex_lock(pthread_mutex_t *mutex)
+pthread_mutex_lock (pthread_mutex_t * mutex)
 {
   int result = 0;
   pthread_mutex_t mx;
@@ -135,29 +60,29 @@ pthread_mutex_lock(pthread_mutex_t *mutex)
    */
   if (*mutex == PTHREAD_MUTEX_INITIALIZER)
     {
-      if ((result = ptw32_mutex_check_need_init(mutex)) != 0)
+      if ((result = ptw32_mutex_check_need_init (mutex)) != 0)
 	{
-	  return(result);
+	  return (result);
 	}
     }
 
   mx = *mutex;
 
-  if ( 0 == InterlockedIncrement( &mx->lock_idx ) )
+  if (0 == InterlockedIncrement (&mx->lock_idx))
     {
       mx->recursive_count = 1;
       mx->ownerThread = (mx->kind != PTHREAD_MUTEX_FAST_NP
-			 ? pthread_self()
+			 ? pthread_self ()
 			 : (pthread_t) PTW32_MUTEX_OWNER_ANONYMOUS);
     }
   else
     {
-      if ( mx->kind != PTHREAD_MUTEX_FAST_NP &&
-	   pthread_equal( mx->ownerThread, pthread_self() ) )
+      if (mx->kind != PTHREAD_MUTEX_FAST_NP &&
+	  pthread_equal (mx->ownerThread, pthread_self ()))
 	{
-	  (void) InterlockedDecrement( &mx->lock_idx );
-	  
-	  if( mx->kind == PTHREAD_MUTEX_RECURSIVE_NP )
+	  (void) InterlockedDecrement (&mx->lock_idx);
+
+	  if (mx->kind == PTHREAD_MUTEX_RECURSIVE_NP)
 	    {
 	      mx->recursive_count++;
 	    }
@@ -168,11 +93,11 @@ pthread_mutex_lock(pthread_mutex_t *mutex)
 	}
       else
 	{
-	  if (ptw32_semwait( &mx->wait_sema ) == 0)
+	  if (ptw32_semwait (&mx->wait_sema) == 0)
 	    {
 	      mx->recursive_count = 1;
 	      mx->ownerThread = (mx->kind != PTHREAD_MUTEX_FAST_NP
-				 ? pthread_self()
+				 ? pthread_self ()
 				 : (pthread_t) PTW32_MUTEX_OWNER_ANONYMOUS);
 	    }
 	  else
@@ -182,5 +107,5 @@ pthread_mutex_lock(pthread_mutex_t *mutex)
 	}
     }
 
-  return(result);
+  return (result);
 }
-- 
cgit v1.2.3