Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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: */