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| Rev | Author | Line No. | Line |
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| 3 | pmbaty | 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
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| 3 | Copyright (C) 1997-2009 Sam Lantinga |
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| 4 | |||
| 5 | This library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |||
| 10 | This library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |||
| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with this library; if not, write to the Free Software |
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| 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 18 | |||
| 19 | Sam Lantinga |
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| 20 | slouken@libsdl.org |
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| 21 | */ |
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| 22 | |||
| 23 | #ifndef _SDL_thread_h |
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| 24 | #define _SDL_thread_h |
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| 25 | |||
| 26 | /** @file SDL_thread.h |
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| 27 | * Header for the SDL thread management routines |
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| 28 | * |
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| 29 | * @note These are independent of the other SDL routines. |
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| 30 | */ |
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| 31 | |||
| 32 | #include "SDL_stdinc.h" |
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| 33 | #include "SDL_error.h" |
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| 34 | |||
| 35 | /* Thread synchronization primitives */ |
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| 36 | #include "SDL_mutex.h" |
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| 37 | |||
| 38 | #include "begin_code.h" |
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| 39 | /* Set up for C function definitions, even when using C++ */ |
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| 40 | #ifdef __cplusplus |
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| 41 | extern "C" { |
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| 42 | #endif |
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| 43 | |||
| 44 | /** The SDL thread structure, defined in SDL_thread.c */ |
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| 45 | struct SDL_Thread; |
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| 46 | typedef struct SDL_Thread SDL_Thread; |
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| 47 | |||
| 48 | /** Create a thread */ |
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| 49 | #if ((defined(__WIN32__) && !defined(HAVE_LIBC)) || defined(__OS2__)) && !defined(__SYMBIAN32__) |
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| 50 | /** |
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| 51 | * We compile SDL into a DLL on OS/2. This means, that it's the DLL which |
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| 52 | * creates a new thread for the calling process with the SDL_CreateThread() |
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| 53 | * API. There is a problem with this, that only the RTL of the SDL.DLL will |
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| 54 | * be initialized for those threads, and not the RTL of the calling application! |
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| 55 | * To solve this, we make a little hack here. |
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| 56 | * We'll always use the caller's _beginthread() and _endthread() APIs to |
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| 57 | * start a new thread. This way, if it's the SDL.DLL which uses this API, |
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| 58 | * then the RTL of SDL.DLL will be used to create the new thread, and if it's |
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| 59 | * the application, then the RTL of the application will be used. |
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| 60 | * So, in short: |
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| 61 | * Always use the _beginthread() and _endthread() of the calling runtime library! |
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| 62 | */ |
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| 63 | #define SDL_PASSED_BEGINTHREAD_ENDTHREAD |
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| 64 | #ifndef _WIN32_WCE |
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| 65 | #include <process.h> /* This has _beginthread() and _endthread() defined! */ |
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| 66 | #endif |
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| 67 | |||
| 68 | #ifdef __OS2__ |
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| 69 | typedef int (*pfnSDL_CurrentBeginThread)(void (*func)(void *), void *, unsigned, void *arg); |
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| 70 | typedef void (*pfnSDL_CurrentEndThread)(void); |
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| 71 | #elif __GNUC__ |
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| 72 | typedef unsigned long (__cdecl *pfnSDL_CurrentBeginThread) (void *, unsigned, |
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| 73 | unsigned (__stdcall *func)(void *), void *arg, |
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| 74 | unsigned, unsigned *threadID); |
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| 75 | typedef void (__cdecl *pfnSDL_CurrentEndThread)(unsigned code); |
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| 76 | #else |
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| 77 | typedef uintptr_t (__cdecl *pfnSDL_CurrentBeginThread) (void *, unsigned, |
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| 78 | unsigned (__stdcall *func)(void *), void *arg, |
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| 79 | unsigned, unsigned *threadID); |
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| 80 | typedef void (__cdecl *pfnSDL_CurrentEndThread)(unsigned code); |
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| 81 | #endif |
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| 82 | |||
| 83 | extern DECLSPEC SDL_Thread * SDLCALL SDL_CreateThread(int (SDLCALL *fn)(void *), void *data, pfnSDL_CurrentBeginThread pfnBeginThread, pfnSDL_CurrentEndThread pfnEndThread); |
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| 84 | |||
| 85 | #ifdef __OS2__ |
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| 86 | #define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, _beginthread, _endthread) |
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| 87 | #elif defined(_WIN32_WCE) |
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| 88 | #define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, NULL, NULL) |
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| 89 | #else |
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| 90 | #define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, _beginthreadex, _endthreadex) |
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| 91 | #endif |
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| 92 | #else |
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| 93 | extern DECLSPEC SDL_Thread * SDLCALL SDL_CreateThread(int (SDLCALL *fn)(void *), void *data); |
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| 94 | #endif |
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| 95 | |||
| 96 | /** Get the 32-bit thread identifier for the current thread */ |
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| 97 | extern DECLSPEC Uint32 SDLCALL SDL_ThreadID(void); |
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| 98 | |||
| 99 | /** Get the 32-bit thread identifier for the specified thread, |
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| 100 | * equivalent to SDL_ThreadID() if the specified thread is NULL. |
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| 101 | */ |
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| 102 | extern DECLSPEC Uint32 SDLCALL SDL_GetThreadID(SDL_Thread *thread); |
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| 103 | |||
| 104 | /** Wait for a thread to finish. |
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| 105 | * The return code for the thread function is placed in the area |
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| 106 | * pointed to by 'status', if 'status' is not NULL. |
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| 107 | */ |
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| 108 | extern DECLSPEC void SDLCALL SDL_WaitThread(SDL_Thread *thread, int *status); |
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| 109 | |||
| 110 | /** Forcefully kill a thread without worrying about its state */ |
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| 111 | extern DECLSPEC void SDLCALL SDL_KillThread(SDL_Thread *thread); |
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| 112 | |||
| 113 | |||
| 114 | /* Ends C function definitions when using C++ */ |
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| 115 | #ifdef __cplusplus |
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| 116 | } |
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| 117 | #endif |
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| 118 | #include "close_code.h" |
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| 119 | |||
| 120 | #endif /* _SDL_thread_h */ |