Mercurial > sdl-ios-xcode
annotate include/SDL_thread.h @ 1356:67114343400d
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| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 10 Feb 2006 03:19:02 +0000 |
| parents | 450721ad5436 |
| children | c71e05b4dc2e |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 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 |
| 0 | 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. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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13 Lesser General Public License for more details. |
| 0 | 14 |
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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 |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifndef _SDL_thread_h | |
| 24 #define _SDL_thread_h | |
| 25 | |
| 26 /* Header for the SDL thread management routines | |
| 27 | |
| 28 These are independent of the other SDL routines. | |
| 29 */ | |
| 30 | |
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31 #include "SDL_stdinc.h" |
| 0 | 32 |
| 33 /* Thread synchronization primitives */ | |
| 34 #include "SDL_mutex.h" | |
| 35 | |
| 36 #include "begin_code.h" | |
| 37 /* Set up for C function definitions, even when using C++ */ | |
| 38 #ifdef __cplusplus | |
| 39 extern "C" { | |
| 40 #endif | |
| 41 | |
| 42 /* The SDL thread structure, defined in SDL_thread.c */ | |
| 43 struct SDL_Thread; | |
| 44 typedef struct SDL_Thread SDL_Thread; | |
| 45 | |
| 46 /* Create a thread */ | |
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47 #if defined(_WIN32) || defined(__OS2__) |
| 1190 | 48 /* |
| 49 We compile SDL into a DLL on OS/2. This means, that it's the DLL which | |
| 50 creates a new thread for the calling process with the SDL_CreateThread() | |
| 51 API. There is a problem with this, that only the RTL of the SDL.DLL will | |
| 52 be initialized for those threads, and not the RTL of the calling application! | |
| 53 To solve this, we make a little hack here. | |
| 54 We'll always use the caller's _beginthread() and _endthread() APIs to | |
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55 start a new thread. This way, if it's the SDL.DLL which uses this API, |
| 1190 | 56 then the RTL of SDL.DLL will be used to create the new thread, and if it's |
| 57 the application, then the RTL of the application will be used. | |
| 58 So, in short: | |
| 59 Always use the _beginthread() and _endthread() of the calling runtime library! | |
| 60 */ | |
| 61 #include <process.h> // This has _beginthread() and _endthread() defined! | |
| 62 #ifdef __EMX__ | |
| 63 #include <stdlib.h> // This has _beginthread() and _endthread() defined, if -Zmt flag is used! | |
| 64 #endif | |
| 65 | |
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66 #ifdef __OS2__ |
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67 typedef int (__cdecl *pfnSDL_CurrentBeginThread)(void (*func)(void *), void *, unsigned, void *arg); |
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68 typedef void (__cdecl *pfnSDL_CurrentEndThread)(void); |
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69 #else |
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70 #ifdef __GNUC__ |
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71 #include <stdint.h> |
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72 #endif |
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73 typedef uintptr_t (__cdecl *pfnSDL_CurrentBeginThread) (void *, unsigned, |
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74 unsigned (__stdcall *func)(void *), void *arg, |
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75 unsigned, unsigned *threadID); |
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76 typedef void (__cdecl *pfnSDL_CurrentEndThread)(unsigned code); |
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parents:
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77 #endif |
| 1190 | 78 |
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79 extern DECLSPEC SDL_Thread * SDLCALL SDL_CreateThread(int (*fn)(void *), void *data, pfnSDL_CurrentBeginThread pfnBeginThread, pfnSDL_CurrentEndThread pfnEndThread); |
| 1190 | 80 |
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81 #ifdef __OS2__ |
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82 #define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, _beginthread, _endthread) |
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parents:
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83 #elif defined(_WIN32_WCE) |
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Sam Lantinga <slouken@libsdl.org>
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84 #define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, NULL, NULL) |
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450721ad5436
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Sam Lantinga <slouken@libsdl.org>
parents:
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85 #else |
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450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
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86 #define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, _beginthreadex, _endthreadex) |
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parents:
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87 #endif |
| 1190 | 88 #else |
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89 extern DECLSPEC SDL_Thread * SDLCALL SDL_CreateThread(int (SDLCALL *fn)(void *), void *data); |
| 1190 | 90 #endif |
| 0 | 91 |
| 92 /* Get the 32-bit thread identifier for the current thread */ | |
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93 extern DECLSPEC Uint32 SDLCALL SDL_ThreadID(void); |
| 0 | 94 |
| 95 /* Get the 32-bit thread identifier for the specified thread, | |
| 96 equivalent to SDL_ThreadID() if the specified thread is NULL. | |
| 97 */ | |
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98 extern DECLSPEC Uint32 SDLCALL SDL_GetThreadID(SDL_Thread *thread); |
| 0 | 99 |
| 100 /* Wait for a thread to finish. | |
| 101 The return code for the thread function is placed in the area | |
| 102 pointed to by 'status', if 'status' is not NULL. | |
| 103 */ | |
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104 extern DECLSPEC void SDLCALL SDL_WaitThread(SDL_Thread *thread, int *status); |
| 0 | 105 |
| 106 /* Forcefully kill a thread without worrying about its state */ | |
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107 extern DECLSPEC void SDLCALL SDL_KillThread(SDL_Thread *thread); |
| 0 | 108 |
| 109 | |
| 110 /* Ends C function definitions when using C++ */ | |
| 111 #ifdef __cplusplus | |
| 112 } | |
| 113 #endif | |
| 114 #include "close_code.h" | |
| 115 | |
| 116 #endif /* _SDL_thread_h */ |