Angelscript/angelscript/source/as_thread.h

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2021-04-12 18:25:02 +00:00
/*
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_array.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