--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicscomposition/openwfcompositionengine/adaptation/include/owfcond.h	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,99 @@
+
+/* Copyright (c) 2009 The Khronos Group Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and/or associated documentation files (the
+ * "Materials"), to deal in the Materials without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Materials, and to
+ * permit persons to whom the Materials are furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Materials.
+ *
+ * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+ */
+
+#ifndef OWFCOND_H_
+#define OWFCOND_H_
+
+#include "owftypes.h"
+#include "owfmutex.h"
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+typedef void* OWF_COND;
+
+/*! \brief Initialize a condition variable
+ *
+ *  \param cond
+ *  \param mutex mutex to be used when wait is called
+ *
+ *  \return true or false depending whether initialization
+ *  succeeded or not
+ */
+OWF_API_CALL OWFboolean
+OWF_Cond_Init(OWF_COND* cond, OWF_MUTEX mutex);
+
+/*! \brief Destroy a condition variable
+ *
+ *  \cond cond variable
+ */
+OWF_API_CALL void
+OWF_Cond_Destroy(OWF_COND* cond);
+
+/*! \brief Block on a condition variable
+ *
+ *  \param cond
+ *  \param timeout maximum time to wait in nanoseconds
+ *
+ * Cond must be initialized with OWF_Cond_Init. Caller MUST hold
+ * the mutex specified upon initialization. Call will block on
+ * the cond and release mutex until cond is signalled. After cond
+ * is signalled the mutex is regained.
+ *
+ * The call will not block if timeout equals to zero. If timeout is
+ * greater than zero, the call will not return until 'timeout'
+ * nanoseconds has elapsed or cond is signalled. It timeout equal to
+ * OWF_FOREVER, the call returns only after cond is signalled.
+ */
+OWF_API_CALL OWFboolean
+OWF_Cond_Wait(OWF_COND cond, OWFtime timeout);
+
+/*! \brief Signal a condition variable
+ *
+ *  \param cond
+ *
+ *  Only one of waiters for cond will be woke-up
+ */
+OWF_API_CALL OWFboolean
+OWF_Cond_Signal(OWF_COND cond);
+
+/*! \brief Signal a condition variable
+ *
+ *  \param cond
+ *
+ *  Wake-up all waiters of cond.
+ */
+OWF_API_CALL OWFboolean
+OWF_Cond_SignalAll(OWF_COND cond);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+
+#endif /* OWFCOND_H_ */