Mercurial > sdl-ios-xcode
diff src/thread/win32/SDL_syssem.c @ 36:13ee9f4834ea
Windows CE patches contributed by Rainer Loritz
author | Sam Lantinga <slouken@lokigames.com> |
---|---|
date | Wed, 23 May 2001 23:35:10 +0000 |
parents | 74212992fb08 |
children | e8157fcb3114 |
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--- a/src/thread/win32/SDL_syssem.c Wed May 23 00:36:17 2001 +0000 +++ b/src/thread/win32/SDL_syssem.c Wed May 23 23:35:10 2001 +0000 @@ -33,56 +33,17 @@ #include "SDL_error.h" #include "SDL_thread.h" - #if defined(_WIN32_WCE) && (_WIN32_WCE < 300) - -/* No semaphores on Windows CE earlier than 3.0, hmm... */ - -/* Create a semaphore */ -SDL_sem *SDL_CreateSemaphore(Uint32 initial_value) -{ - SDL_SetError("Semaphores not supported on WinCE"); - return(NULL); -} - -/* Free the semaphore */ -void SDL_DestroySemaphore(SDL_sem *sem) -{ - return; -} - -int SDL_SemWaitTimeout(SDL_sem *sem, Uint32 timeout) -{ - SDL_SetError("Semaphores not supported on WinCE"); - return(-1); -} +#include "win_ce_semaphore.h" +#endif -int SDL_SemTryWait(SDL_sem *sem) -{ - return SDL_SemWaitTimeout(sem, 0); -} - -int SDL_SemWait(SDL_sem *sem) -{ - return SDL_SemWaitTimeout(sem, SDL_MUTEX_MAXWAIT); -} - -/* Returns the current count of the semaphore */ -Uint32 SDL_SemValue(SDL_sem *sem) -{ - return(0); -} - -int SDL_SemPost(SDL_sem *sem) -{ - SDL_SetError("Semaphores not supported on WinCE"); - return(-1); -} - -#else struct SDL_semaphore { +#if defined(_WIN32_WCE) && (_WIN32_WCE < 300) + SYNCHHANDLE id; +#else HANDLE id; +#endif Uint32 volatile count; }; @@ -96,7 +57,11 @@ sem = (SDL_sem *)malloc(sizeof(*sem)); if ( sem ) { /* Create the semaphore, with max value 32K */ +#if defined(_WIN32_WCE) && (_WIN32_WCE < 300) + sem->id = CreateSemaphoreCE(NULL, initial_value, 32*1024, NULL); +#else sem->id = CreateSemaphore(NULL, initial_value, 32*1024, NULL); +#endif sem->count = initial_value; if ( ! sem->id ) { SDL_SetError("Couldn't create semaphore"); @@ -114,7 +79,11 @@ { if ( sem ) { if ( sem->id ) { +#if defined(_WIN32_WCE) && (_WIN32_WCE < 300) + CloseSynchHandle(sem->id); +#else CloseHandle(sem->id); +#endif sem->id = 0; } free(sem); @@ -136,7 +105,11 @@ } else { dwMilliseconds = (DWORD)timeout; } +#if defined(_WIN32_WCE) && (_WIN32_WCE < 300) + switch (WaitForSemaphoreCE(sem->id, dwMilliseconds)) { +#else switch (WaitForSingleObject(sem->id, dwMilliseconds)) { +#endif case WAIT_OBJECT_0: --sem->count; retval = 0; @@ -184,12 +157,14 @@ * is waiting for this semaphore. */ ++sem->count; +#if defined(_WIN32_WCE) && (_WIN32_WCE < 300) + if ( ReleaseSemaphoreCE(sem->id, 1, NULL) == FALSE ) { +#else if ( ReleaseSemaphore(sem->id, 1, NULL) == FALSE ) { +#endif --sem->count; /* restore */ SDL_SetError("ReleaseSemaphore() failed"); return -1; } return 0; } - -#endif /* _WIN32_WCE */ \ No newline at end of file