summaryrefslogtreecommitdiffstats
path: root/sal/osl/w32/conditn.cxx
diff options
context:
space:
mode:
Diffstat (limited to 'sal/osl/w32/conditn.cxx')
-rw-r--r--sal/osl/w32/conditn.cxx114
1 files changed, 114 insertions, 0 deletions
diff --git a/sal/osl/w32/conditn.cxx b/sal/osl/w32/conditn.cxx
new file mode 100644
index 000000000..6bc6d9d3e
--- /dev/null
+++ b/sal/osl/w32/conditn.cxx
@@ -0,0 +1,114 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "system.h"
+
+#include <osl/conditn.h>
+#include <osl/diagnose.h>
+#include <osl/time.h>
+
+/*
+ under WIN32, we use the void* oslCondition
+ as a WIN32 HANDLE (which is also a 32-bit value)
+*/
+
+oslCondition SAL_CALL osl_createCondition(void)
+{
+ oslCondition Condition;
+
+ Condition= reinterpret_cast<oslCondition>(CreateEventW(nullptr, /* no security */
+ true, /* manual reset */
+ false, /* initial state not signaled */
+ nullptr)); /* automatic name */
+
+ return Condition;
+
+}
+
+void SAL_CALL osl_destroyCondition(oslCondition Condition)
+{
+ if(Condition)
+ OSL_VERIFY(CloseHandle(Condition));
+}
+
+sal_Bool SAL_CALL osl_setCondition(oslCondition Condition)
+{
+ OSL_ASSERT(Condition);
+
+ return SetEvent(reinterpret_cast<HANDLE>(Condition)) != FALSE;
+}
+
+sal_Bool SAL_CALL osl_resetCondition(oslCondition Condition)
+{
+ OSL_ASSERT(Condition);
+
+ return ResetEvent(reinterpret_cast<HANDLE>(Condition)) != FALSE;
+}
+
+oslConditionResult SAL_CALL osl_waitCondition(oslCondition Condition,
+ const TimeValue* pTimeout)
+{
+ DWORD timeout;
+
+ OSL_ASSERT(Condition);
+
+ if (pTimeout)
+ timeout = pTimeout->Seconds * 1000 + pTimeout->Nanosec / 1000000L;
+ else
+ timeout = INFINITE;
+
+ /* It's necessary to process SendMessage calls to the current thread to give other threads
+ access to COM objects instantiated in this thread */
+
+ while ( true )
+ {
+ /* Only wake up if a SendMessage call to the threads message loop is detected */
+ switch( MsgWaitForMultipleObjects( 1, reinterpret_cast<HANDLE *>(&Condition), FALSE, timeout, QS_SENDMESSAGE ) )
+ {
+ case WAIT_OBJECT_0 + 1:
+ {
+ MSG msg;
+
+ /* We Must not dispatch the message. PM_NOREMOVE leaves the message queue untouched
+ but dispatches SendMessage calls automatically */
+
+ PeekMessageW( &msg, nullptr, 0, 0, PM_NOREMOVE );
+ }
+ break;
+
+ case WAIT_OBJECT_0:
+ return osl_cond_result_ok;
+
+ case WAIT_TIMEOUT:
+ return osl_cond_result_timeout;
+
+ default:
+ return osl_cond_result_error;
+ }
+ }
+}
+
+sal_Bool SAL_CALL osl_checkCondition(oslCondition Condition)
+{
+ OSL_ASSERT(Condition);
+
+ return WaitForSingleObject(reinterpret_cast<HANDLE>(Condition), 0) == WAIT_OBJECT_0;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */