/*
Simple DirectMedia Layer
- Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
+ Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
3. This notice may not be removed or altered from any source distribution.
*/
-#ifndef _SDL_thread_h
-#define _SDL_thread_h
+#ifndef SDL_thread_h_
+#define SDL_thread_h_
/**
* \file SDL_thread.h
/**
* The SDL thread priority.
*
- * \note On many systems you require special privileges to set high priority.
+ * \note On many systems you require special privileges to set high or time critical priority.
*/
typedef enum {
SDL_THREAD_PRIORITY_LOW,
SDL_THREAD_PRIORITY_NORMAL,
- SDL_THREAD_PRIORITY_HIGH
+ SDL_THREAD_PRIORITY_HIGH,
+ SDL_THREAD_PRIORITY_TIME_CRITICAL
} SDL_ThreadPriority;
/**
*
* We compile SDL into a DLL. This means, that it's the DLL which
* creates a new thread for the calling process with the SDL_CreateThread()
- * API. There is a problem with this, that only the RTL of the SDL.DLL will
+ * API. There is a problem with this, that only the RTL of the SDL2.DLL will
* be initialized for those threads, and not the RTL of the calling
* application!
*
* To solve this, we make a little hack here.
*
* We'll always use the caller's _beginthread() and _endthread() APIs to
- * start a new thread. This way, if it's the SDL.DLL which uses this API,
- * then the RTL of SDL.DLL will be used to create the new thread, and if it's
+ * start a new thread. This way, if it's the SDL2.DLL which uses this API,
+ * then the RTL of SDL2.DLL will be used to create the new thread, and if it's
* the application, then the RTL of the application will be used.
*
* So, in short:
* library!
*/
#define SDL_PASSED_BEGINTHREAD_ENDTHREAD
-#include <process.h> /* This has _beginthread() and _endthread() defined! */
-
-typedef uintptr_t(__cdecl * pfnSDL_CurrentBeginThread) (void *, unsigned,
- unsigned (__stdcall *
- func) (void
- *),
- void *arg, unsigned,
- unsigned *threadID);
+#include <process.h> /* _beginthreadex() and _endthreadex() */
+
+typedef uintptr_t(__cdecl * pfnSDL_CurrentBeginThread)
+ (void *, unsigned, unsigned (__stdcall *func)(void *),
+ void * /*arg*/, unsigned, unsigned * /* threadID */);
typedef void (__cdecl * pfnSDL_CurrentEndThread) (unsigned code);
/**
pfnSDL_CurrentBeginThread pfnBeginThread,
pfnSDL_CurrentEndThread pfnEndThread);
+extern DECLSPEC SDL_Thread *SDLCALL
+SDL_CreateThreadWithStackSize(int (SDLCALL * fn) (void *),
+ const char *name, const size_t stacksize, void *data,
+ pfnSDL_CurrentBeginThread pfnBeginThread,
+ pfnSDL_CurrentEndThread pfnEndThread);
+
+
/**
* Create a thread.
*/
#if defined(SDL_CreateThread) && SDL_DYNAMIC_API
#undef SDL_CreateThread
#define SDL_CreateThread(fn, name, data) SDL_CreateThread_REAL(fn, name, data, (pfnSDL_CurrentBeginThread)_beginthreadex, (pfnSDL_CurrentEndThread)_endthreadex)
+#undef SDL_CreateThreadWithStackSize
+#define SDL_CreateThreadWithStackSize(fn, name, stacksize, data) SDL_CreateThreadWithStackSize_REAL(fn, name, stacksize, data, (pfnSDL_CurrentBeginThread)_beginthreadex, (pfnSDL_CurrentEndThread)_endthreadex)
#else
#define SDL_CreateThread(fn, name, data) SDL_CreateThread(fn, name, data, (pfnSDL_CurrentBeginThread)_beginthreadex, (pfnSDL_CurrentEndThread)_endthreadex)
+#define SDL_CreateThreadWithStackSize(fn, name, stacksize, data) SDL_CreateThreadWithStackSize(fn, name, data, (pfnSDL_CurrentBeginThread)_beginthreadex, (pfnSDL_CurrentEndThread)_endthreadex)
+#endif
+
+#elif defined(__OS2__)
+/*
+ * just like the windows case above: We compile SDL2
+ * into a dll with Watcom's runtime statically linked.
+ */
+#define SDL_PASSED_BEGINTHREAD_ENDTHREAD
+#ifndef __EMX__
+#include <process.h>
+#else
+#include <stdlib.h>
+#endif
+typedef int (*pfnSDL_CurrentBeginThread)(void (*func)(void *), void *, unsigned, void * /*arg*/);
+typedef void (*pfnSDL_CurrentEndThread)(void);
+extern DECLSPEC SDL_Thread *SDLCALL
+SDL_CreateThread(SDL_ThreadFunction fn, const char *name, void *data,
+ pfnSDL_CurrentBeginThread pfnBeginThread,
+ pfnSDL_CurrentEndThread pfnEndThread);
+extern DECLSPEC SDL_Thread *SDLCALL
+SDL_CreateThreadWithStackSize(SDL_ThreadFunction fn, const char *name, const size_t stacksize, void *data,
+ pfnSDL_CurrentBeginThread pfnBeginThread,
+ pfnSDL_CurrentEndThread pfnEndThread);
+#if defined(SDL_CreateThread) && SDL_DYNAMIC_API
+#undef SDL_CreateThread
+#define SDL_CreateThread(fn, name, data) SDL_CreateThread_REAL(fn, name, data, (pfnSDL_CurrentBeginThread)_beginthread, (pfnSDL_CurrentEndThread)_endthread)
+#undef SDL_CreateThreadWithStackSize
+#define SDL_CreateThreadWithStackSize(fn, name, stacksize, data) SDL_CreateThreadWithStackSize_REAL(fn, name, data, (pfnSDL_CurrentBeginThread)_beginthread, (pfnSDL_CurrentEndThread)_endthread)
+#else
+#define SDL_CreateThread(fn, name, data) SDL_CreateThread(fn, name, data, (pfnSDL_CurrentBeginThread)_beginthread, (pfnSDL_CurrentEndThread)_endthread)
+#define SDL_CreateThreadWithStackSize(fn, name, stacksize, data) SDL_CreateThreadWithStackSize(fn, name, stacksize, data, (pfnSDL_CurrentBeginThread)_beginthread, (pfnSDL_CurrentEndThread)_endthread)
#endif
#else
+/**
+ * Create a thread with a default stack size.
+ *
+ * This is equivalent to calling:
+ * SDL_CreateThreadWithStackSize(fn, name, 0, data);
+ */
+extern DECLSPEC SDL_Thread *SDLCALL
+SDL_CreateThread(SDL_ThreadFunction fn, const char *name, void *data);
+
/**
* Create a thread.
*
* If a system imposes requirements, SDL will try to munge the string for
* it (truncate, etc), but the original string contents will be available
* from SDL_GetThreadName().
+ *
+ * The size (in bytes) of the new stack can be specified. Zero means "use
+ * the system default" which might be wildly different between platforms
+ * (x86 Linux generally defaults to eight megabytes, an embedded device
+ * might be a few kilobytes instead).
+ *
+ * In SDL 2.1, stacksize will be folded into the original SDL_CreateThread
+ * function.
*/
extern DECLSPEC SDL_Thread *SDLCALL
-SDL_CreateThread(SDL_ThreadFunction fn, const char *name, void *data);
+SDL_CreateThreadWithStackSize(SDL_ThreadFunction fn, const char *name, const size_t stacksize, void *data);
#endif
* \sa SDL_TLSCreate()
* \sa SDL_TLSGet()
*/
-extern DECLSPEC int SDLCALL SDL_TLSSet(SDL_TLSID id, const void *value, void (*destructor)(void*));
+extern DECLSPEC int SDLCALL SDL_TLSSet(SDL_TLSID id, const void *value, void (SDLCALL *destructor)(void*));
/* Ends C function definitions when using C++ */
#endif
#include "close_code.h"
-#endif /* _SDL_thread_h */
+#endif /* SDL_thread_h_ */
/* vi: set ts=4 sw=4 expandtab: */
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