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diff --git a/src/libs/xpcom18a4/ipc/ipcd/extensions/transmngr/module/tmIPCModule.h b/src/libs/xpcom18a4/ipc/ipcd/extensions/transmngr/module/tmIPCModule.h
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+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla Transaction Manager.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corp.
+ * Portions created by the Initial Developer are Copyright (C) 2003
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * John Gaunt <jgaunt@netscape.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef _tmIPCModule_H_
+#define _tmIPCModule_H_
+
+#include "ipcModuleUtil.h"
+#include "tmUtils.h"
+
+// forward declarations
+class tmTransaction;
+class tmTransactionManager;
+
+/**
+ * Basically an interface between the tmTransactionManager and the IPC
+ * daemon. Does little else than format the data from one party into
+ * a format understandable to the other.
+ *
+ * The reason for this class is to try and abstract the transportation
+ * layer the transaction service uses. By using this class the Transaction
+ * Manager itself only needs to know that clients are identified by
+ * PRUint32 IDs.
+ */
+class tmIPCModule
+{
+public:
+
+ ////////////////////////////////////////////////////////////////////////////
+ // ipcModule API - called from IPC daemon
+
+ /**
+ * Clean up the TM
+ */
+ static void Shutdown();
+
+ /**
+ * Check the TM, create it if neccessary.
+ */
+ static void Init();
+
+ /**
+ * Receives a message from the IPC daemon, creates a transaction and sends
+ * it to the TM to deal with.
+ */
+ static void HandleMsg(ipcClientHandle client,
+ const nsID &target,
+ const void *data,
+ PRUint32 dataLen);
+
+ ////////////////////////////////////////////////////////////////////////////
+ // tmIPCModule API - called from tmTransactionManager
+
+ /**
+ * Sends the message to the IPC daemon to be deliverd to the client arg.
+ */
+ static void SendMsg(PRUint32 aDestClientIPCID, tmTransaction *aTransaction);
+
+protected:
+
+ /**
+ * tm should be null coming into this method. This does NOT delete tm
+ * first.
+ *
+ * @returns NS_OK if everything succeeds
+ * @returns -1 if initialization fails
+ */
+ static PRInt32 InitInternal();
+
+ static tmTransactionManager *tm;
+
+};
+
+#endif
+
+