--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/wmlengine/src/utils/include/nwx_psq.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,84 @@
+/*
+* Copyright (c) 1999 - 2001 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+
+/*****************************************************************
+
+  Subsystem Name: ProtectedSignaledQueue
+  Version: V1.0
+  Description:    
+    Provides interfaces to a Protected, Signaled, Queue. This is a queue that
+  can be have multiple readers and writers running in separate threads.
+  When something is added to the queue a signal is set.
+******************************************************************/
+#ifndef NWX_PSQ_H
+#define NWX_PSQ_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/*
+** Includes
+*/
+
+#include "nwx_defs.h"
+#include "nwx_datastruct.h"
+#include "nwx_osu.h"
+#include "BrsrStatusCodes.h"
+
+/*
+** Type Definitions
+*/ 
+
+typedef struct {
+  NW_Node_t       *head;    /* queue head */
+  NW_Node_t       *tail;    /* queue tail */
+  NW_Osu_Signal_t *signal;  /* signal this when adding */
+  NW_Osu_Mutex_t  *mutex;   /* mutex for locking and unlocking */
+  NW_Ucs2         *name;    /* name of queue (for debugging only) */
+  NW_Uint16          length;   /* number of nodes in queue */
+} NW_Psq_t;
+
+
+/*
+** Global Function Declarations
+*/
+
+/* create a new Protected Signaled Queue */
+NW_Psq_t  *NW_Psq_New(const char *name);
+
+/* delete a Protected Signaled Queue */
+void NW_Psq_Delete(NW_Psq_t *que);
+
+/* add a new node to the tail of the queue */
+void NW_Psq_AddTail(NW_Psq_t *que, NW_Node_t *node);
+
+/* return node from the head of the queue and remove it */
+NW_Node_t *NW_Psq_RemoveHead(NW_Psq_t *que);
+
+/* wait for node to be added to queue */
+TBrowserStatusCode NW_Psq_WaitForAdd(const NW_Psq_t *que, const NW_Int32 howLong);
+
+
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif  /* NWX_PSQ_H */