initial commit, 4.5 stable

thirdparty/sdl/thread/SDL_thread_c.h

@@ -0,0 +1,92 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#ifndef SDL_thread_c_h_
+#define SDL_thread_c_h_
+
+// Need the definitions of SYS_ThreadHandle
+#ifdef SDL_THREADS_DISABLED
+#include "generic/SDL_systhread_c.h"
+#elif defined(SDL_THREAD_PTHREAD)
+#include "pthread/SDL_systhread_c.h"
+#elif defined(SDL_THREAD_WINDOWS)
+#include "windows/SDL_systhread_c.h"
+#elif defined(SDL_THREAD_PS2)
+#include "ps2/SDL_systhread_c.h"
+#elif defined(SDL_THREAD_PSP)
+#include "psp/SDL_systhread_c.h"
+#elif defined(SDL_THREAD_VITA)
+#include "vita/SDL_systhread_c.h"
+#elif defined(SDL_THREAD_N3DS)
+#include "n3ds/SDL_systhread_c.h"
+#else
+#error Need thread implementation for this platform
+#include "generic/SDL_systhread_c.h"
+#endif
+#include "../SDL_error_c.h"
+
+// This is the system-independent thread info structure
+struct SDL_Thread
+{
+    SDL_ThreadID threadid;
+    SYS_ThreadHandle handle;
+    int status;
+    SDL_AtomicInt state; /* SDL_ThreadState */
+    SDL_error errbuf;
+    char *name;
+    size_t stacksize; // 0 for default, >0 for user-specified stack size.
+    int(SDLCALL *userfunc)(void *);
+    void *userdata;
+    void *data;
+    SDL_FunctionPointer endfunc; // only used on some platforms.
+};
+
+// This is the function called to run a thread
+extern void SDL_RunThread(SDL_Thread *thread);
+
+// This is the system-independent thread local storage structure
+typedef struct
+{
+    int limit;
+    struct
+    {
+        void *data;
+        void(SDLCALL *destructor)(void *);
+    } array[1];
+} SDL_TLSData;
+
+// This is how many TLS entries we allocate at once
+#define TLS_ALLOC_CHUNKSIZE 4
+
+extern void SDL_InitTLSData(void);
+extern void SDL_QuitTLSData(void);
+
+/* Generic TLS support.
+   This is only intended as a fallback if getting real thread-local
+   storage fails or isn't supported on this platform.
+ */
+extern void SDL_Generic_InitTLSData(void);
+extern SDL_TLSData *SDL_Generic_GetTLSData(void);
+extern bool SDL_Generic_SetTLSData(SDL_TLSData *data);
+extern void SDL_Generic_QuitTLSData(void);
+
+#endif // SDL_thread_c_h_