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Added release/acquire memory barriers to the atomic API

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* Added a destructor to clean up TLS memory at thread shutdown
* Refactored the TLS code to have platform independent code and a small platform dependent core with a fallback to generic code if platform dependent functions fail.
* Fixed recursion issues with SDL_GetErrBuf()
This commit is contained in:
Sam Lantinga 2013-07-10 18:31:17 -07:00
parent 086ecc9949
commit 557bbf3fe6
10 changed files with 334 additions and 319 deletions
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7
include/SDL_thread.h
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@ -48,8 +48,8 @@ typedef struct SDL_Thread SDL_Thread;
/* The SDL thread ID */
typedef unsigned long SDL_threadID;
/* Thread local storage ID */
typedef int SDL_TLSID;
/* Thread local storage ID, 0 is the invalid ID */
typedef unsigned SDL_TLSID;
/* The SDL thread priority
*
@ -219,13 +219,14 @@ extern DECLSPEC void * SDLCALL SDL_TLSGet(SDL_TLSID id);
*
* \param id The thread local storage ID
* \param value The value to associate with the ID for the current thread
* \param destructor A function called when the thread exits, to free the value.
*
* \return 0 on success, -1 on error
*
* \sa SDL_TLSCreate()
* \sa SDL_TLSGet()
*/
extern DECLSPEC int SDLCALL SDL_TLSSet(SDL_TLSID id, const void *value);
extern DECLSPEC int SDLCALL SDL_TLSSet(SDL_TLSID id, const void *value, void (*destructor)(void*));
/* Ends C function definitions when using C++ */