| /* |
| SDL - Simple DirectMedia Layer |
| Copyright (C) 1997-2009 Sam Lantinga |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| This library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with this library; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| |
| Sam Lantinga |
| slouken@libsdl.org |
| */ |
| |
| #ifndef _SDL_thread_h |
| #define _SDL_thread_h |
| |
| /** @file SDL_thread.h |
| * Header for the SDL thread management routines |
| * |
| * @note These are independent of the other SDL routines. |
| */ |
| |
| #include "SDL_stdinc.h" |
| #include "SDL_error.h" |
| |
| /* Thread synchronization primitives */ |
| #include "SDL_mutex.h" |
| |
| #include "begin_code.h" |
| /* Set up for C function definitions, even when using C++ */ |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** The SDL thread structure, defined in SDL_thread.c */ |
| struct SDL_Thread; |
| typedef struct SDL_Thread SDL_Thread; |
| |
| /** Create a thread */ |
| #if ((defined(__WIN32__) && !defined(HAVE_LIBC)) || defined(__OS2__)) && !defined(__SYMBIAN32__) |
| /** |
| * We compile SDL into a DLL on OS/2. 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 |
| * 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 |
| * the application, then the RTL of the application will be used. |
| * So, in short: |
| * Always use the _beginthread() and _endthread() of the calling runtime library! |
| */ |
| #define SDL_PASSED_BEGINTHREAD_ENDTHREAD |
| #ifndef _WIN32_WCE |
| #include <process.h> /* This has _beginthread() and _endthread() defined! */ |
| #endif |
| |
| #ifdef __OS2__ |
| typedef int (*pfnSDL_CurrentBeginThread)(void (*func)(void *), void *, unsigned, void *arg); |
| typedef void (*pfnSDL_CurrentEndThread)(void); |
| #elif __GNUC__ |
| typedef unsigned long (__cdecl *pfnSDL_CurrentBeginThread) (void *, unsigned, |
| unsigned (__stdcall *func)(void *), void *arg, |
| unsigned, unsigned *threadID); |
| typedef void (__cdecl *pfnSDL_CurrentEndThread)(unsigned code); |
| #else |
| typedef uintptr_t (__cdecl *pfnSDL_CurrentBeginThread) (void *, unsigned, |
| unsigned (__stdcall *func)(void *), void *arg, |
| unsigned, unsigned *threadID); |
| typedef void (__cdecl *pfnSDL_CurrentEndThread)(unsigned code); |
| #endif |
| |
| extern DECLSPEC SDL_Thread * SDLCALL SDL_CreateThread(int (SDLCALL *fn)(void *), void *data, pfnSDL_CurrentBeginThread pfnBeginThread, pfnSDL_CurrentEndThread pfnEndThread); |
| |
| #ifdef __OS2__ |
| #define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, _beginthread, _endthread) |
| #elif defined(_WIN32_WCE) |
| #define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, NULL, NULL) |
| #else |
| #define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, _beginthreadex, _endthreadex) |
| #endif |
| #else |
| extern DECLSPEC SDL_Thread * SDLCALL SDL_CreateThread(int (SDLCALL *fn)(void *), void *data); |
| #endif |
| |
| /** Get the 32-bit thread identifier for the current thread */ |
| extern DECLSPEC Uint32 SDLCALL SDL_ThreadID(void); |
| |
| /** Get the 32-bit thread identifier for the specified thread, |
| * equivalent to SDL_ThreadID() if the specified thread is NULL. |
| */ |
| extern DECLSPEC Uint32 SDLCALL SDL_GetThreadID(SDL_Thread *thread); |
| |
| /** Wait for a thread to finish. |
| * The return code for the thread function is placed in the area |
| * pointed to by 'status', if 'status' is not NULL. |
| */ |
| extern DECLSPEC void SDLCALL SDL_WaitThread(SDL_Thread *thread, int *status); |
| |
| /** Forcefully kill a thread without worrying about its state */ |
| extern DECLSPEC void SDLCALL SDL_KillThread(SDL_Thread *thread); |
| |
| |
| /* Ends C function definitions when using C++ */ |
| #ifdef __cplusplus |
| } |
| #endif |
| #include "close_code.h" |
| |
| #endif /* _SDL_thread_h */ |