slouken@0
|
1 |
/*
|
slouken@0
|
2 |
SDL - Simple DirectMedia Layer
|
slouken@1312
|
3 |
Copyright (C) 1997-2006 Sam Lantinga
|
slouken@0
|
4 |
|
slouken@0
|
5 |
This library is free software; you can redistribute it and/or
|
slouken@1312
|
6 |
modify it under the terms of the GNU Lesser General Public
|
slouken@0
|
7 |
License as published by the Free Software Foundation; either
|
slouken@1312
|
8 |
version 2.1 of the License, or (at your option) any later version.
|
slouken@0
|
9 |
|
slouken@0
|
10 |
This library is distributed in the hope that it will be useful,
|
slouken@0
|
11 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
slouken@0
|
12 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
slouken@1312
|
13 |
Lesser General Public License for more details.
|
slouken@0
|
14 |
|
slouken@1312
|
15 |
You should have received a copy of the GNU Lesser General Public
|
slouken@1312
|
16 |
License along with this library; if not, write to the Free Software
|
slouken@1312
|
17 |
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
slouken@0
|
18 |
|
slouken@0
|
19 |
Sam Lantinga
|
slouken@251
|
20 |
slouken@libsdl.org
|
slouken@0
|
21 |
*/
|
slouken@0
|
22 |
|
slouken@0
|
23 |
#ifndef _SDL_thread_h
|
slouken@0
|
24 |
#define _SDL_thread_h
|
slouken@0
|
25 |
|
slouken@0
|
26 |
/* Header for the SDL thread management routines
|
slouken@0
|
27 |
|
slouken@0
|
28 |
These are independent of the other SDL routines.
|
slouken@0
|
29 |
*/
|
slouken@0
|
30 |
|
slouken@1356
|
31 |
#include "SDL_stdinc.h"
|
slouken@1358
|
32 |
#include "SDL_error.h"
|
slouken@0
|
33 |
|
slouken@0
|
34 |
/* Thread synchronization primitives */
|
slouken@0
|
35 |
#include "SDL_mutex.h"
|
slouken@0
|
36 |
|
slouken@0
|
37 |
#include "begin_code.h"
|
slouken@0
|
38 |
/* Set up for C function definitions, even when using C++ */
|
slouken@0
|
39 |
#ifdef __cplusplus
|
slouken@0
|
40 |
extern "C" {
|
slouken@0
|
41 |
#endif
|
slouken@0
|
42 |
|
slouken@0
|
43 |
/* The SDL thread structure, defined in SDL_thread.c */
|
slouken@0
|
44 |
struct SDL_Thread;
|
slouken@0
|
45 |
typedef struct SDL_Thread SDL_Thread;
|
slouken@0
|
46 |
|
slouken@0
|
47 |
/* Create a thread */
|
slouken@1402
|
48 |
#if defined(__WIN32__) || defined(__OS2__)
|
icculus@1190
|
49 |
/*
|
icculus@1190
|
50 |
We compile SDL into a DLL on OS/2. This means, that it's the DLL which
|
icculus@1190
|
51 |
creates a new thread for the calling process with the SDL_CreateThread()
|
icculus@1190
|
52 |
API. There is a problem with this, that only the RTL of the SDL.DLL will
|
icculus@1190
|
53 |
be initialized for those threads, and not the RTL of the calling application!
|
icculus@1190
|
54 |
To solve this, we make a little hack here.
|
icculus@1190
|
55 |
We'll always use the caller's _beginthread() and _endthread() APIs to
|
slouken@1330
|
56 |
start a new thread. This way, if it's the SDL.DLL which uses this API,
|
icculus@1190
|
57 |
then the RTL of SDL.DLL will be used to create the new thread, and if it's
|
icculus@1190
|
58 |
the application, then the RTL of the application will be used.
|
icculus@1190
|
59 |
So, in short:
|
icculus@1190
|
60 |
Always use the _beginthread() and _endthread() of the calling runtime library!
|
icculus@1190
|
61 |
*/
|
icculus@1190
|
62 |
#include <process.h> // This has _beginthread() and _endthread() defined!
|
icculus@1190
|
63 |
#ifdef __EMX__
|
icculus@1190
|
64 |
#include <stdlib.h> // This has _beginthread() and _endthread() defined, if -Zmt flag is used!
|
icculus@1190
|
65 |
#endif
|
icculus@1190
|
66 |
|
slouken@1330
|
67 |
#ifdef __OS2__
|
slouken@1442
|
68 |
typedef int (*pfnSDL_CurrentBeginThread)(void (*func)(void *), void *, unsigned, void *arg);
|
slouken@1442
|
69 |
typedef void (*pfnSDL_CurrentEndThread)(void);
|
slouken@1330
|
70 |
#else
|
slouken@1330
|
71 |
#ifdef __GNUC__
|
slouken@1330
|
72 |
#include <stdint.h>
|
slouken@1330
|
73 |
#endif
|
slouken@1330
|
74 |
typedef uintptr_t (__cdecl *pfnSDL_CurrentBeginThread) (void *, unsigned,
|
slouken@1330
|
75 |
unsigned (__stdcall *func)(void *), void *arg,
|
slouken@1330
|
76 |
unsigned, unsigned *threadID);
|
slouken@1330
|
77 |
typedef void (__cdecl *pfnSDL_CurrentEndThread)(unsigned code);
|
slouken@1330
|
78 |
#endif
|
icculus@1190
|
79 |
|
slouken@1330
|
80 |
extern DECLSPEC SDL_Thread * SDLCALL SDL_CreateThread(int (*fn)(void *), void *data, pfnSDL_CurrentBeginThread pfnBeginThread, pfnSDL_CurrentEndThread pfnEndThread);
|
icculus@1190
|
81 |
|
slouken@1330
|
82 |
#ifdef __OS2__
|
slouken@1330
|
83 |
#define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, _beginthread, _endthread)
|
slouken@1330
|
84 |
#elif defined(_WIN32_WCE)
|
slouken@1330
|
85 |
#define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, NULL, NULL)
|
slouken@1330
|
86 |
#else
|
slouken@1330
|
87 |
#define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, _beginthreadex, _endthreadex)
|
slouken@1330
|
88 |
#endif
|
icculus@1190
|
89 |
#else
|
slouken@930
|
90 |
extern DECLSPEC SDL_Thread * SDLCALL SDL_CreateThread(int (SDLCALL *fn)(void *), void *data);
|
icculus@1190
|
91 |
#endif
|
slouken@0
|
92 |
|
slouken@0
|
93 |
/* Get the 32-bit thread identifier for the current thread */
|
slouken@337
|
94 |
extern DECLSPEC Uint32 SDLCALL SDL_ThreadID(void);
|
slouken@0
|
95 |
|
slouken@0
|
96 |
/* Get the 32-bit thread identifier for the specified thread,
|
slouken@0
|
97 |
equivalent to SDL_ThreadID() if the specified thread is NULL.
|
slouken@0
|
98 |
*/
|
slouken@337
|
99 |
extern DECLSPEC Uint32 SDLCALL SDL_GetThreadID(SDL_Thread *thread);
|
slouken@0
|
100 |
|
slouken@0
|
101 |
/* Wait for a thread to finish.
|
slouken@0
|
102 |
The return code for the thread function is placed in the area
|
slouken@0
|
103 |
pointed to by 'status', if 'status' is not NULL.
|
slouken@0
|
104 |
*/
|
slouken@337
|
105 |
extern DECLSPEC void SDLCALL SDL_WaitThread(SDL_Thread *thread, int *status);
|
slouken@0
|
106 |
|
slouken@0
|
107 |
/* Forcefully kill a thread without worrying about its state */
|
slouken@337
|
108 |
extern DECLSPEC void SDLCALL SDL_KillThread(SDL_Thread *thread);
|
slouken@0
|
109 |
|
slouken@0
|
110 |
|
slouken@0
|
111 |
/* Ends C function definitions when using C++ */
|
slouken@0
|
112 |
#ifdef __cplusplus
|
slouken@0
|
113 |
}
|
slouken@0
|
114 |
#endif
|
slouken@0
|
115 |
#include "close_code.h"
|
slouken@0
|
116 |
|
slouken@0
|
117 |
#endif /* _SDL_thread_h */
|