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thread: Put all important SDL_CreateThread internal data into SDL_Thread.

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This avoids the need to malloc something extra, use a semaphore, etc, and
fixes Emscripten with pthreads support, which might not spin up a web worker
until after SDL_CreateThread returns and thus can't wait on a semaphore at
this point in any case.

Fixes Bugzilla #5064.
This commit is contained in:
Ryan C. Gordon
2020-03-26 22:14:59 -04:00
parent abdc5cbf24
commit 46bb47cf04
8 changed files with 44 additions and 97 deletions
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4
src/thread/SDL_systhread.h
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@@ -33,11 +33,11 @@
on success.
*/
#ifdef SDL_PASSED_BEGINTHREAD_ENDTHREAD
extern int SDL_SYS_CreateThread(SDL_Thread * thread, void *args,
extern int SDL_SYS_CreateThread(SDL_Thread * thread,
pfnSDL_CurrentBeginThread pfnBeginThread,
pfnSDL_CurrentEndThread pfnEndThread);
#else
extern int SDL_SYS_CreateThread(SDL_Thread * thread, void *args);
extern int SDL_SYS_CreateThread(SDL_Thread * thread);
#endif
/* This function does any necessary setup in the child thread */