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comparison include/SDL_thread.h @ 1190:173c063d4f55

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OS/2 port! This was mostly, if not entirely, written by "Doodle" and "Caetano": doodle@scenergy.dfmk.hu daniel@caetano.eng.br --ryan.
author Ryan C. Gordon <icculus@icculus.org>
date Wed, 23 Nov 2005 07:29:56 +0000
parents 02759105b989
children c9b51268668f
comparison
equal deleted inserted replaced
1189:c96b326b90ba 1190:173c063d4f55
48 /* The SDL thread structure, defined in SDL_thread.c */ 48 /* The SDL thread structure, defined in SDL_thread.c */
49 struct SDL_Thread; 49 struct SDL_Thread;
50 typedef struct SDL_Thread SDL_Thread; 50 typedef struct SDL_Thread SDL_Thread;
51 51
52 /* Create a thread */ 52 /* Create a thread */
53 #ifdef __OS2__
54 /*
55 We compile SDL into a DLL on OS/2. This means, that it's the DLL which
56 creates a new thread for the calling process with the SDL_CreateThread()
57 API. There is a problem with this, that only the RTL of the SDL.DLL will
58 be initialized for those threads, and not the RTL of the calling application!
59 To solve this, we make a little hack here.
60 We'll always use the caller's _beginthread() and _endthread() APIs to
61 start a new thread. This way, it it's the SDL.DLL which uses this API,
62 then the RTL of SDL.DLL will be used to create the new thread, and if it's
63 the application, then the RTL of the application will be used.
64 So, in short:
65 Always use the _beginthread() and _endthread() of the calling runtime library!
66 */
67
68 #ifdef __WATCOMC__
69 #include <process.h> // This has _beginthread() and _endthread() defined!
70 #endif
71 #ifdef __EMX__
72 #include <stdlib.h> // This has _beginthread() and _endthread() defined, if -Zmt flag is used!
73 #endif
74
75 typedef Uint32 SDLCALL (*pfnSDL_CurrentBeginThread)(void (*pfnThreadFn)(void *), Uint32 uiStackSize, void *pParam);
76 typedef void SDLCALL (*pfnSDL_CurrentEndThread)(void);
77
78 extern DECLSPEC SDL_Thread * SDLCALL SDL_CreateThread_Core(int (*fn)(void *), void *data, pfnSDL_CurrentBeginThread pfnBeginThread, pfnSDL_CurrentEndThread pfnEndThread);
79
80 // Disable warnings about unreferenced symbol!
81 #pragma disable_message (202)
82 static Uint32 SDLCALL SDL_CurrentBeginThread(void (*pfnThreadFn)(void *), Uint32 uiStackSize, void *pParam)
83 {
84 return _beginthread(pfnThreadFn, NULL, uiStackSize, pParam);
85 }
86
87 static void SDLCALL SDL_CurrentEndThread(void)
88 {
89 _endthread();
90 }
91
92 #define SDL_CreateThread(fn, data) SDL_CreateThread_Core(fn, data, SDL_CurrentBeginThread, SDL_CurrentEndThread)
93
94 #else
53 extern DECLSPEC SDL_Thread * SDLCALL SDL_CreateThread(int (SDLCALL *fn)(void *), void *data); 95 extern DECLSPEC SDL_Thread * SDLCALL SDL_CreateThread(int (SDLCALL *fn)(void *), void *data);
96 #endif
54 97
55 /* Get the 32-bit thread identifier for the current thread */ 98 /* Get the 32-bit thread identifier for the current thread */
56 extern DECLSPEC Uint32 SDLCALL SDL_ThreadID(void); 99 extern DECLSPEC Uint32 SDLCALL SDL_ThreadID(void);
57 100
58 /* Get the 32-bit thread identifier for the specified thread, 101 /* Get the 32-bit thread identifier for the specified thread,