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engines/hpl1/engine/libraries/angelscript/sources/as_thread.h

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+/*
+   AngelCode Scripting Library
+   Copyright (c) 2003-2017 Andreas Jonsson
+
+   This software is provided 'as-is', without any express or implied
+   warranty. In no event will the authors be held liable for any
+   damages arising from the use of this software.
+
+   Permission is granted to anyone to use this software for any
+   purpose, including commercial applications, and to alter it and
+   redistribute it freely, subject to the following restrictions:
+
+   1. The origin of this software must not be misrepresented; you
+      must not claim that you wrote the original software. If you use
+      this software in a product, an acknowledgment in the product
+      documentation would be appreciated but is not required.
+
+   2. Altered source versions must be plainly marked as such, and
+      must not be misrepresented as being the original software.
+
+   3. This notice may not be removed or altered from any source
+      distribution.
+
+   The original version of this library can be located at:
+   http://www.angelcode.com/angelscript/
+
+   Andreas Jonsson
+   andreas@angelcode.com
+*/
+
+
+
+//
+// as_thread.h
+//
+// Classes for multi threading support
+//
+
+#ifndef AS_THREAD_H
+#define AS_THREAD_H
+
+#include "as_config.h"
+#include "as_string.h"
+#include "as_memory.h"
+#include "as_map.h"
+#include "as_criticalsection.h"
+
+BEGIN_AS_NAMESPACE
+
+class asCThreadLocalData;
+
+class asCThreadManager : public asIThreadManager {
+public:
+	static asCThreadLocalData *GetLocalData();
+	static int CleanupLocalData();
+
+	static int  Prepare(asIThreadManager *externalThreadMgr);
+	static void Unprepare();
+
+	// This read/write lock can be used by the application to provide simple synchronization
+	DECLAREREADWRITELOCK(appRWLock)
+
+protected:
+	asCThreadManager();
+	~asCThreadManager();
+
+	// No need to use the atomic int here, as it will only be
+	// updated within the thread manager's critical section
+	int refCount;
+
+#ifndef AS_NO_THREADS
+#if defined(_MSC_VER) && defined(AS_WINDOWS_THREADS) && (WINAPI_FAMILY & WINAPI_FAMILY_PHONE_APP)
+	// On Windows Store we must use MSVC specific thread variables for thread
+	// local storage, as the TLS API isn't available. On desktop we can't use
+	// this as it may cause problems if the library is used in a dll.
+	// ref: http://msdn.microsoft.com/en-us/library/2s9wt68x.aspx
+	// ref: http://msdn.microsoft.com/en-us/library/9w1sdazb.aspx
+	__declspec(thread) static asCThreadLocalData *tld;
+#else
+	asDWORD tlsKey;
+#endif
+	DECLARECRITICALSECTION(criticalSection)
+#else
+	asCThreadLocalData *tld;
+#endif
+};
+
+//======================================================================
+
+class asIScriptContext;
+
+class asCThreadLocalData {
+public:
+	asCArray<asIScriptContext *> activeContexts;
+	asCString string;
+
+protected:
+	friend class asCThreadManager;
+
+	asCThreadLocalData();
+	~asCThreadLocalData();
+};
+
+END_AS_NAMESPACE
+
+#endif