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author | erorcun <erorcunerorcun@hotmail.com.tr> | 2021-02-08 11:23:19 +0100 |
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committer | erorcun <erorcunerorcun@hotmail.com.tr> | 2021-02-08 11:23:19 +0100 |
commit | b464bb7fd43a86264e816e950ccac1d6845b0230 (patch) | |
tree | 1070200f94f1f7adf4ae26950011884e1956576d /src/core/CdStreamPosix.cpp | |
parent | Use our synonyms for attack anims again (diff) | |
parent | reorganize shaders; use modulate flag; update librw (diff) | |
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Diffstat (limited to 'src/core/CdStreamPosix.cpp')
-rw-r--r-- | src/core/CdStreamPosix.cpp | 41 |
1 files changed, 26 insertions, 15 deletions
diff --git a/src/core/CdStreamPosix.cpp b/src/core/CdStreamPosix.cpp index 0854d850..e18280e5 100644 --- a/src/core/CdStreamPosix.cpp +++ b/src/core/CdStreamPosix.cpp @@ -21,9 +21,9 @@ #define CDDEBUG(f, ...) debug ("%s: " f "\n", "cdvd_stream", ## __VA_ARGS__) #define CDTRACE(f, ...) printf("%s: " f "\n", "cdvd_stream", ## __VA_ARGS__) -// #define ONE_THREAD_PER_CHANNEL // Don't use if you're not on SSD/Flash. (Also you may want to benefit from this via using all channels in Streaming.cpp) - +#ifdef FLUSHABLE_STREAMING bool flushStream[MAX_CDCHANNELS]; +#endif struct CdReadInfo { @@ -76,7 +76,7 @@ CdStreamInitThread(void) gChannelRequestQ.tail = 0; gChannelRequestQ.size = gNumChannels + 1; ASSERT(gChannelRequestQ.items != nil ); - gCdStreamSema = sem_open("/semaphore_cd_stream", O_CREAT, 0644, 1); + gCdStreamSema = sem_open("/semaphore_cd_stream", O_CREAT, 0644, 0); if (gCdStreamSema == SEM_FAILED) { @@ -91,7 +91,7 @@ CdStreamInitThread(void) for ( int32 i = 0; i < gNumChannels; i++ ) { sprintf(semName,"/semaphore_done%d",i); - gpReadInfo[i].pDoneSemaphore = sem_open(semName, O_CREAT, 0644, 1); + gpReadInfo[i].pDoneSemaphore = sem_open(semName, O_CREAT, 0644, 0); if (gpReadInfo[i].pDoneSemaphore == SEM_FAILED) { @@ -99,9 +99,10 @@ CdStreamInitThread(void) ASSERT(0); return; } + #ifdef ONE_THREAD_PER_CHANNEL sprintf(semName,"/semaphore_start%d",i); - gpReadInfo[i].pStartSemaphore = sem_open(semName, O_CREAT, 0644, 1); + gpReadInfo[i].pStartSemaphore = sem_open(semName, O_CREAT, 0644, 0); if (gpReadInfo[i].pStartSemaphore == SEM_FAILED) { @@ -170,6 +171,7 @@ CdStreamInit(int32 numChannels) gNumImages = 0; gNumChannels = numChannels; + ASSERT( gNumChannels != 0 ); gpReadInfo = (CdReadInfo *)calloc(numChannels, sizeof(CdReadInfo)); ASSERT( gpReadInfo != nil ); @@ -245,10 +247,12 @@ CdStreamRead(int32 channel, void *buffer, uint32 offset, uint32 size) if ( pChannel->nSectorsToRead != 0 || pChannel->bReading ) { if (pChannel->hFile == hImage - 1 && pChannel->nSectorOffset == _GET_OFFSET(offset) && pChannel->nSectorsToRead >= size) return STREAM_SUCCESS; - +#ifdef FLUSHABLE_STREAMING flushStream[channel] = 1; CdStreamSync(channel); - //return STREAM_NONE; +#else + return STREAM_NONE; +#endif } pChannel->hFile = hImage - 1; @@ -316,34 +320,34 @@ CdStreamSync(int32 channel) CdReadInfo *pChannel = &gpReadInfo[channel]; ASSERT( pChannel != nil ); +#ifdef FLUSHABLE_STREAMING if (flushStream[channel]) { -#ifdef ONE_THREAD_PER_CHANNEL pChannel->nSectorsToRead = 0; +#ifdef ONE_THREAD_PER_CHANNEL pthread_kill(pChannel->pChannelThread, SIGUSR1); if (pChannel->bReading) { pChannel->bLocked = true; - while (pChannel->bLocked) - sem_wait(pChannel->pDoneSemaphore); - } #else - pChannel->nSectorsToRead = 0; if (pChannel->bReading) { pChannel->bLocked = true; pthread_kill(_gCdStreamThread, SIGUSR1); +#endif while (pChannel->bLocked) sem_wait(pChannel->pDoneSemaphore); } -#endif pChannel->bReading = false; flushStream[channel] = false; return STREAM_NONE; } +#endif if ( pChannel->nSectorsToRead != 0 ) { pChannel->bLocked = true; - while (pChannel->bLocked) + while (pChannel->bLocked && pChannel->nSectorsToRead != 0){ sem_wait(pChannel->pDoneSemaphore); + } + pChannel->bLocked = false; } pChannel->bReading = false; @@ -395,7 +399,12 @@ void *CdStreamThread(void *param) #ifndef ONE_THREAD_PER_CHANNEL while (gCdStreamThreadStatus != 2) { sem_wait(gCdStreamSema); + int32 channel = GetFirstInQueue(&gChannelRequestQ); + + // spurious wakeup + if (channel == -1) + continue; #else int channel = *((int*)param); while (gpReadInfo[channel].nThreadStatus != 2){ @@ -447,7 +456,7 @@ void *CdStreamThread(void *param) if ( pChannel->bLocked ) { pChannel->bLocked = 0; - sem_post(pChannel->pDoneSemaphore); + sem_post(pChannel->pDoneSemaphore); } pChannel->bReading = false; } @@ -524,7 +533,9 @@ void CdStreamRemoveImages(void) { for ( int32 i = 0; i < gNumChannels; i++ ) { +#ifdef FLUSHABLE_STREAMING flushStream[i] = 1; +#endif CdStreamSync(i); } |