1/*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2025 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// Need the definitions of SYS_ThreadHandle
27#ifdef SDL_THREADS_DISABLED
28#include "generic/SDL_systhread_c.h"
29#elif defined(SDL_THREAD_PTHREAD)
30#include "pthread/SDL_systhread_c.h"
31#elif defined(SDL_THREAD_WINDOWS)
32#include "windows/SDL_systhread_c.h"
33#elif defined(SDL_THREAD_PS2)
34#include "ps2/SDL_systhread_c.h"
35#elif defined(SDL_THREAD_PSP)
36#include "psp/SDL_systhread_c.h"
37#elif defined(SDL_THREAD_VITA)
38#include "vita/SDL_systhread_c.h"
39#elif defined(SDL_THREAD_N3DS)
40#include "n3ds/SDL_systhread_c.h"
41#else
42#error Need thread implementation for this platform
43#include "generic/SDL_systhread_c.h"
44#endif
45#include "../SDL_error_c.h"
46
47// This is the system-independent thread info structure
48struct SDL_Thread
49{
50 SDL_ThreadID threadid;
51 SYS_ThreadHandle handle;
52 int status;
53 SDL_AtomicInt state; /* SDL_ThreadState */
54 SDL_error errbuf;
55 char *name;
56 size_t stacksize; // 0 for default, >0 for user-specified stack size.
57 int(SDLCALL *userfunc)(void *);
58 void *userdata;
59 void *data;
60 SDL_FunctionPointer endfunc; // only used on some platforms.
61};
62
63// This is the function called to run a thread
64extern void SDL_RunThread(SDL_Thread *thread);
65
66// This is the system-independent thread local storage structure
67typedef struct
68{
69 int limit;
70 struct
71 {
72 void *data;
73 void(SDLCALL *destructor)(void *);
74 } array[1];
75} SDL_TLSData;
76
77// This is how many TLS entries we allocate at once
78#define TLS_ALLOC_CHUNKSIZE 4
79
80extern void SDL_InitTLSData(void);
81extern void SDL_QuitTLSData(void);
82
83/* Generic TLS support.
84 This is only intended as a fallback if getting real thread-local
85 storage fails or isn't supported on this platform.
86 */
87extern void SDL_Generic_InitTLSData(void);
88extern SDL_TLSData *SDL_Generic_GetTLSData(void);
89extern bool SDL_Generic_SetTLSData(SDL_TLSData *data);
90extern void SDL_Generic_QuitTLSData(void);
91
92#endif // SDL_thread_c_h_
93