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82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_internal.h"
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#ifdef SDL_THREAD_WINDOWS
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#include "../../core/windows/SDL_windows.h"
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#include "../SDL_thread_c.h"
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static DWORD thread_local_storage = TLS_OUT_OF_INDEXES;
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static bool generic_local_storage = false;
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void SDL_SYS_InitTLSData(void)
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{
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if (thread_local_storage == TLS_OUT_OF_INDEXES && !generic_local_storage) {
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thread_local_storage = TlsAlloc();
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if (thread_local_storage == TLS_OUT_OF_INDEXES) {
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SDL_Generic_InitTLSData();
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generic_local_storage = true;
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}
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}
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}
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SDL_TLSData *SDL_SYS_GetTLSData(void)
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{
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if (generic_local_storage) {
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return SDL_Generic_GetTLSData();
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}
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if (thread_local_storage != TLS_OUT_OF_INDEXES) {
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return (SDL_TLSData *)TlsGetValue(thread_local_storage);
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}
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return NULL;
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}
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bool SDL_SYS_SetTLSData(SDL_TLSData *data)
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{
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if (generic_local_storage) {
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return SDL_Generic_SetTLSData(data);
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}
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if (!TlsSetValue(thread_local_storage, data)) {
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return WIN_SetError("TlsSetValue()");
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}
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return true;
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}
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void SDL_SYS_QuitTLSData(void)
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{
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if (generic_local_storage) {
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SDL_Generic_QuitTLSData();
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generic_local_storage = false;
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} else {
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if (thread_local_storage != TLS_OUT_OF_INDEXES) {
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TlsFree(thread_local_storage);
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thread_local_storage = TLS_OUT_OF_INDEXES;
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}
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}
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}
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#endif // SDL_THREAD_WINDOWS
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