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view src/thread/win32/win_ce_semaphore.h @ 4357:a10dac5858fe SDL-1.2

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Recommendation from Lennart Poettering: In ALSA_OpenAudio(): instead of setting period_size+n_periods OR buffer_size I'd recommend copying the hwparams stuff before you do this, then first try period_size+n_periods, and then apply it with snd_pcm_hw_params() and check if that works. If it didn't you should take the copy of hwparams and try setting buffer_size and apply that via snd_pcm_hw_params() and check if that worked. And if that failed too, then take the copy and don't apply neither period nor buffer settings and see if that works.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 19 Oct 2009 02:23:21 +0000
parents 13ee9f4834ea
children 782fd950bd46 c121d94672cb
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/* win_ce_semaphore.h - header file to go with win_ce_semaphore.c */

typedef struct _SYNCH_HANDLE_STRUCTURE {
   HANDLE hEvent;
   HANDLE hMutex;
   HANDLE hSemph;
   LONG MaxCount;
   volatile LONG CurCount;
   LPCTSTR lpName;
} SYNCH_HANDLE_STRUCTURE, *SYNCHHANDLE;

#define SYNCH_HANDLE_SIZE sizeof (SYNCH_HANDLE_STRUCTURE)

        /* Error codes - all must have bit 29 set */
#define SYNCH_ERROR 0X20000000   /* EXERCISE - REFINE THE ERROR NUMBERS */

extern SYNCHHANDLE CreateSemaphoreCE (LPSECURITY_ATTRIBUTES, LONG, LONG, LPCTSTR);

extern BOOL ReleaseSemaphoreCE (SYNCHHANDLE, LONG, LPLONG);
extern DWORD WaitForSemaphoreCE (SYNCHHANDLE, DWORD);

extern BOOL CloseSynchHandle (SYNCHHANDLE);