1/*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org>
4
5 This software is provided 'as-is', without any express or implied
6 warranty. In no event will the authors be held liable for any damages
7 arising from the use of this software.
8
9 Permission is granted to anyone to use this software for any purpose,
10 including commercial applications, and to alter it and redistribute it
11 freely, subject to the following restrictions:
12
13 1. The origin of this software must not be misrepresented; you must not
14 claim that you wrote the original software. If you use this software
15 in a product, an acknowledgment in the product documentation would be
16 appreciated but is not required.
17 2. Altered source versions must be plainly marked as such, and must not be
18 misrepresented as being the original software.
19 3. This notice may not be removed or altered from any source distribution.
20*/
21#include "../SDL_internal.h"
22
23#ifndef SDL_thread_c_h_
24#define SDL_thread_c_h_
25
26#include "SDL_thread.h"
27
28/* Need the definitions of SYS_ThreadHandle */
29#if SDL_THREADS_DISABLED
30#include "generic/SDL_systhread_c.h"
31#elif SDL_THREAD_PTHREAD
32#include "pthread/SDL_systhread_c.h"
33#elif SDL_THREAD_WINDOWS
34#include "windows/SDL_systhread_c.h"
35#elif SDL_THREAD_PSP
36#include "psp/SDL_systhread_c.h"
37#elif SDL_THREAD_VITA
38#include "vita/SDL_systhread_c.h"
39#elif SDL_THREAD_STDCPP
40#include "stdcpp/SDL_systhread_c.h"
41#elif SDL_THREAD_OS2
42#include "os2/SDL_systhread_c.h"
43#else
44#error Need thread implementation for this platform
45#include "generic/SDL_systhread_c.h"
46#endif
47#include "../SDL_error_c.h"
48
49typedef enum SDL_ThreadState
50{
51 SDL_THREAD_STATE_ALIVE,
52 SDL_THREAD_STATE_DETACHED,
53 SDL_THREAD_STATE_ZOMBIE,
54 SDL_THREAD_STATE_CLEANED,
55} SDL_ThreadState;
56
57/* This is the system-independent thread info structure */
58struct SDL_Thread
59{
60 SDL_threadID threadid;
61 SYS_ThreadHandle handle;
62 int status;
63 SDL_atomic_t state; /* SDL_THREAD_STATE_* */
64 SDL_error errbuf;
65 char *name;
66 size_t stacksize; /* 0 for default, >0 for user-specified stack size. */
67 int (SDLCALL * userfunc) (void *);
68 void *userdata;
69 void *data;
70 void *endfunc; /* only used on some platforms. */
71};
72
73/* This is the function called to run a thread */
74extern void SDL_RunThread(SDL_Thread *thread);
75
76/* This is the system-independent thread local storage structure */
77typedef struct {
78 unsigned int limit;
79 struct {
80 void *data;
81 void (SDLCALL *destructor)(void*);
82 } array[1];
83} SDL_TLSData;
84
85/* This is how many TLS entries we allocate at once */
86#define TLS_ALLOC_CHUNKSIZE 4
87
88/* Get cross-platform, slow, thread local storage for this thread.
89 This is only intended as a fallback if getting real thread-local
90 storage fails or isn't supported on this platform.
91 */
92extern SDL_TLSData *SDL_Generic_GetTLSData(void);
93
94/* Set cross-platform, slow, thread local storage for this thread.
95 This is only intended as a fallback if getting real thread-local
96 storage fails or isn't supported on this platform.
97 */
98extern int SDL_Generic_SetTLSData(SDL_TLSData *data);
99
100#endif /* SDL_thread_c_h_ */
101
102/* vi: set ts=4 sw=4 expandtab: */
103