Add missing file.

1 files changed, 50 insertions, 0 deletions

diff --git a/ptw32_rwlock_cancelwrwait.c b/ptw32_rwlock_cancelwrwait.c
new file mode 100644
index 0000000..719861a
--- /dev/null
+++ b/ptw32_rwlock_cancelwrwait.c
@@ -0,0 +1,50 @@
+/*
+ * ptw32_rwlock_cancelwrwait.c
+ *
+ * Description:
+ * This translation unit implements read/write lock primitives.
+ *
+ * --------------------------------------------------------------------------
+ *
+ *      Pthreads-win32 - POSIX Threads Library for Win32
+ *      Copyright(C) 1998 John E. Bossom
+ *      Copyright(C) 1999,2002 Pthreads-win32 contributors
+ * 
+ *      Contact Email: rpj@ise.canberra.edu.au
+ * 
+ *      The current list of contributors is contained
+ *      in the file CONTRIBUTORS included with the source
+ *      code distribution. The list can also be seen at the
+ *      following World Wide Web location:
+ *      http://sources.redhat.com/pthreads-win32/contributors.html
+ * 
+ *      This library is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU Lesser General Public
+ *      License as published by the Free Software Foundation; either
+ *      version 2 of the License, or (at your option) any later version.
+ * 
+ *      This library is distributed in the hope that it will be useful,
+ *      but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *      Lesser General Public License for more details.
+ * 
+ *      You should have received a copy of the GNU Lesser General Public
+ *      License along with this library in the file COPYING.LIB;
+ *      if not, write to the Free Software Foundation, Inc.,
+ *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+#include "pthread.h"
+#include "implement.h"
+
+void
+ptw32_rwlock_cancelwrwait(void * arg)
+{
+    pthread_rwlock_t rwl = (pthread_rwlock_t) arg;
+
+    rwl->nSharedAccessCount = -rwl->nCompletedSharedAccessCount;
+    rwl->nCompletedSharedAccessCount = 0;
+
+    (void) pthread_mutex_unlock(&(rwl->mtxSharedAccessCompleted));
+    (void) pthread_mutex_unlock(&(rwl->mtxExclusiveAccess));
+}