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64 lines
2.0 KiB
C++
64 lines
2.0 KiB
C++
/*
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* PROGRAM: JRD Access Method
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* MODULE: loiter.c
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* DESCRIPTION: Waits for the lock to become free
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*
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* The contents of this file are subject to the Interbase Public
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* License Version 1.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy
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* of the License at http://www.Inprise.com/IPL.html
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*
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* Software distributed under the License is distributed on an
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* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
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* or implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code was created by Inprise Corporation
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* and its predecessors. Portions created by Inprise Corporation are
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* Copyright (C) Inprise Corporation.
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*
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* All Rights Reserved.
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* Contributor(s): ______________________________________.
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*/
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#include "firebird.h"
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#include <windows.h>
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#include "../jrd/common.h"
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#include "../jrd/thd.h"
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#include "../jrd/thd_prot.h"
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#include "../jrd/loiter.h"
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/**************************************************************
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* LOITER_loiter yields control to the Windows non-pre-emptive
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* "operating system." It returns TRUE if the calling function is
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* to continue its processing, and FALSE if the calling function
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* is to break out of what-ever it was doing and return to the
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* master Executable.
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**************************************************************/
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BOOLEAN API_ROUTINE LOITER_loiter(void)
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{
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MSG msg;
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/* save the context */
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THDD save_context;
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save_context = THD_get_specific();
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THD_restore_specific();
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/* Empty the message queue and in the process yield control */
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while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
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if (msg.message == WM_QUIT) {
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/*
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* Reintroduce the message so it can be processed at the
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* right level, and break out of this low level message loop.
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*/
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PostMessage(msg.hwnd, msg.message, msg.wParam, msg.lParam);
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return FALSE;
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}
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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/* restore the context */
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THD_put_specific(save_context);
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return TRUE;
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}
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