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, 175 insertions, 0 deletions

diff --git a/vcl/inc/osx/runinmain.hxx b/vcl/inc/osx/runinmain.hxx
new file mode 100644
index 000000000..e68bc4d35
--- /dev/null
+++ b/vcl/inc/osx/runinmain.hxx
@@ -0,0 +1,175 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_VCL_INC_OSX_RUNINMAIN_HXX
+#define INCLUDED_VCL_INC_OSX_RUNINMAIN_HXX
+
+/**
+ * Runs a command in the main thread.
+ *
+ * These macros are always used like a recursive calls, so they work like
+ * a closure.
+ *
+ * Uses two conditionals for a two way communication.
+ * The data (code block + result) is protected by the SolarMutex.
+ *
+ * There are three main macros, which act as function initializers:
+ *  - OSX_RUNINMAIN - for all functions without return values
+ *  - OSX_RUNINMAIN_POINTER - for all functions returning a pointer
+ *  - OSX_RUNINMAIN_UNION - for all other return types
+ *
+ * All types used via OSX_RUNINMAIN_UNION must implement a move constructor,
+ * so there is no memory leak!
+ */
+
+#include <unordered_map>
+
+#include <Block.h>
+
+#include <osl/thread.h>
+
+#include "saltimer.h"
+#include <salframe.hxx>
+#include <tools/debug.hxx>
+
+union RuninmainResult
+{
+    void*                            pointer;
+    bool                             boolean;
+    struct SalFrame::SalPointerState state;
+
+    RuninmainResult() {}
+};
+
+#define OSX_RUNINMAIN_MEMBERS \
+    std::mutex              m_runInMainMutex; \
+    std::condition_variable m_aInMainCondition; \
+    std::condition_variable m_aResultCondition; \
+    bool                    m_wakeUpMain = false; \
+    bool                    m_resultReady = false; \
+    RuninmainBlock          m_aCodeBlock; \
+    RuninmainResult         m_aResult;
+
+#define OSX_RUNINMAIN( instance, command ) \
+    if ( !instance->IsMainThread() ) \
+    { \
+        DBG_TESTSOLARMUTEX(); \
+        SalYieldMutex *aMutex = static_cast<SalYieldMutex*>(instance->GetYieldMutex()); \
+        { \
+            std::scoped_lock<std::mutex> g(aMutex->m_runInMainMutex); \
+            assert( !aMutex->m_aCodeBlock ); \
+            aMutex->m_aCodeBlock = Block_copy(^{ \
+                command; \
+            }); \
+            aMutex->m_wakeUpMain = true; \
+            aMutex->m_aInMainCondition.notify_all(); \
+        } \
+        dispatch_async(dispatch_get_main_queue(),^{ \
+            ImplNSAppPostEvent( AquaSalInstance::YieldWakeupEvent, NO ); \
+            }); \
+        { \
+            std::unique_lock<std::mutex> g(aMutex->m_runInMainMutex); \
+            aMutex->m_aResultCondition.wait( \
+                g, [&aMutex]() { return aMutex->m_resultReady; }); \
+            aMutex->m_resultReady = false; \
+        } \
+        return; \
+    }
+
+#define OSX_RUNINMAIN_POINTER( instance, command, type ) \
+    if ( !instance->IsMainThread() ) \
+    { \
+        DBG_TESTSOLARMUTEX(); \
+        SalYieldMutex *aMutex = static_cast<SalYieldMutex*>(instance->GetYieldMutex()); \
+        { \
+            std::scoped_lock<std::mutex> g(aMutex->m_runInMainMutex); \
+            assert( !aMutex->m_aCodeBlock ); \
+            aMutex->m_aCodeBlock = Block_copy(^{ \
+                aMutex->m_aResult.pointer = static_cast<void*>( command ); \
+            }); \
+            aMutex->m_wakeUpMain = true; \
+            aMutex->m_aInMainCondition.notify_all(); \
+        } \
+        dispatch_async(dispatch_get_main_queue(),^{ \
+            ImplNSAppPostEvent( AquaSalInstance::YieldWakeupEvent, NO ); \
+            }); \
+        { \
+            std::unique_lock<std::mutex> g(aMutex->m_runInMainMutex); \
+            aMutex->m_aResultCondition.wait( \
+                g, [&aMutex]() { return aMutex->m_resultReady; }); \
+            aMutex->m_resultReady = false; \
+        } \
+        return static_cast<type>( aMutex->m_aResult.pointer ); \
+    }
+
+#define OSX_RUNINMAIN_UNION( instance, command, member ) \
+    if ( !instance->IsMainThread() ) \
+    { \
+        DBG_TESTSOLARMUTEX(); \
+        SalYieldMutex *aMutex = static_cast<SalYieldMutex*>(instance->GetYieldMutex()); \
+        { \
+            std::scoped_lock<std::mutex> g(aMutex->m_runInMainMutex); \
+            assert( !aMutex->m_aCodeBlock ); \
+            aMutex->m_aCodeBlock = Block_copy(^{ \
+                aMutex->m_aResult.member = command; \
+            }); \
+            aMutex->m_wakeUpMain = true; \
+            aMutex->m_aInMainCondition.notify_all(); \
+        } \
+        dispatch_async(dispatch_get_main_queue(),^{ \
+            ImplNSAppPostEvent( AquaSalInstance::YieldWakeupEvent, NO ); \
+            }); \
+        { \
+            std::unique_lock<std::mutex> g(aMutex->m_runInMainMutex); \
+            aMutex->m_aResultCondition.wait( \
+                g, [&aMutex]() { return aMutex->m_resultReady; }); \
+            aMutex->m_resultReady = false; \
+        } \
+        return std::move( aMutex->m_aResult.member ); \
+    }
+
+/**
+ * convenience macros used from SalInstance
+ */
+
+#define OSX_INST_RUNINMAIN( command ) \
+    OSX_RUNINMAIN( this, command )
+
+#define OSX_INST_RUNINMAIN_POINTER( command, type ) \
+    OSX_RUNINMAIN_POINTER( this, command, type )
+
+#define OSX_INST_RUNINMAIN_UNION( command, member ) \
+    OSX_RUNINMAIN_UNION( this, command, member )
+
+/**
+ * convenience macros using global SalData
+ */
+
+#define OSX_SALDATA_RUNINMAIN( command ) \
+    OSX_RUNINMAIN( GetSalData()->mpInstance, command )
+
+#define OSX_SALDATA_RUNINMAIN_POINTER( command, type ) \
+    OSX_RUNINMAIN_POINTER( GetSalData()->mpInstance, command, type )
+
+#define OSX_SALDATA_RUNINMAIN_UNION( command, member ) \
+    OSX_RUNINMAIN_UNION( GetSalData()->mpInstance, command, member )
+
+#endif // INCLUDED_VCL_INC_OSX_RUNINMAIN_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */