diff options
Diffstat (limited to 'src/core/CdStreamPosix.cpp')
-rw-r--r-- | src/core/CdStreamPosix.cpp | 294 |
1 files changed, 156 insertions, 138 deletions
diff --git a/src/core/CdStreamPosix.cpp b/src/core/CdStreamPosix.cpp index e114a29a..04a5de4b 100644 --- a/src/core/CdStreamPosix.cpp +++ b/src/core/CdStreamPosix.cpp @@ -34,11 +34,11 @@ struct CdReadInfo bool bReading; int32 nStatus; #ifdef ONE_THREAD_PER_CHANNEL - int8 nThreadStatus; // 0: created 1:initalized 2:abort now - pthread_t pChannelThread; - sem_t pStartSemaphore; + int8 nThreadStatus; // 0: created 1:priority set up 2:abort now + pthread_t pChannelThread; + sem_t *pStartSemaphore; #endif - sem_t pDoneSemaphore; // used for CdStreamSync + sem_t *pDoneSemaphore; // used for CdStreamSync int32 hFile; }; @@ -51,8 +51,8 @@ char *gImgNames[MAX_CDIMAGES]; #ifndef ONE_THREAD_PER_CHANNEL pthread_t _gCdStreamThread; -sem_t gCdStreamSema; // released when we have new thing to read(so channel is set) -int8 gCdStreamThreadStatus; // 0: created 1:initalized 2:abort now +sem_t *gCdStreamSema; // released when we have new thing to read(so channel is set) +int8 gCdStreamThreadStatus; // 0: created 1:priority set up 2:abort now Queue gChannelRequestQ; bool _gbCdStreamOverlapped; #endif @@ -69,49 +69,50 @@ void CdStreamInitThread(void) { int status; - + char semName[20]; #ifndef ONE_THREAD_PER_CHANNEL gChannelRequestQ.items = (int32 *)calloc(gNumChannels + 1, sizeof(int32)); gChannelRequestQ.head = 0; gChannelRequestQ.tail = 0; gChannelRequestQ.size = gNumChannels + 1; ASSERT(gChannelRequestQ.items != nil ); - status = sem_init(&gCdStreamSema, 0, 0); -#endif + gCdStreamSema = sem_open("/semaphore_cd_stream", O_CREAT, 0644, 1); - if (status == -1) { + if (gCdStreamSema == SEM_FAILED) { CDTRACE("failed to create stream semaphore"); ASSERT(0); return; } - +#endif if ( gNumChannels > 0 ) { for ( int32 i = 0; i < gNumChannels; i++ ) { - status = sem_init(&gpReadInfo[i].pDoneSemaphore, 0, 0); + sprintf(semName,"/semaphore_done%d",i); + gpReadInfo[i].pDoneSemaphore = sem_open(semName, O_CREAT, 0644, 1); - if (status == -1) + if (gpReadInfo[i].pDoneSemaphore == SEM_FAILED) { CDTRACE("failed to create sync semaphore"); ASSERT(0); return; } #ifdef ONE_THREAD_PER_CHANNEL - status = sem_init(&gpReadInfo[i].pStartSemaphore, 0, 0); + sprintf(semName,"/semaphore_start%d",i); + gpReadInfo[i].pStartSemaphore = sem_open(semName, O_CREAT, 0644, 1); - if (status == -1) + if (gpReadInfo[i].pStartSemaphore == SEM_FAILED) { CDTRACE("failed to create start semaphore"); ASSERT(0); return; } - gpReadInfo[i].nThreadStatus = 0; + gpReadInfo[i].nThreadStatus = 0; int *channelI = (int*)malloc(sizeof(int)); *channelI = i; - status = pthread_create(&gpReadInfo[i].pChannelThread, NULL, CdStreamThread, (void*)channelI); + status = pthread_create(&gpReadInfo[i].pChannelThread, NULL, CdStreamThread, (void*)channelI); if (status == -1) { @@ -124,32 +125,32 @@ CdStreamInitThread(void) } #ifndef ONE_THREAD_PER_CHANNEL - debug("Using one streaming thread for all channels\n"); - status = pthread_create(&_gCdStreamThread, NULL, CdStreamThread, nil); - gCdStreamThreadStatus = 0; - - if (status == -1) - { - CDTRACE("failed to create sync thread"); - ASSERT(0); - return; - } + debug("Using one streaming thread for all channels\n"); + gCdStreamThreadStatus = 0; + status = pthread_create(&_gCdStreamThread, NULL, CdStreamThread, nil); + + if (status == -1) + { + CDTRACE("failed to create sync thread"); + ASSERT(0); + return; + } #else - debug("Using seperate streaming threads for each channel\n"); + debug("Using separate streaming threads for each channel\n"); #endif } void CdStreamInit(int32 numChannels) { - struct statvfs fsInfo; - - if((statvfs("models/gta3.img", &fsInfo)) < 0) - { - CDTRACE("can't get filesystem info"); - ASSERT(0); - return; - } + struct statvfs fsInfo; + + if((statvfs("models/gta3.img", &fsInfo)) < 0) + { + CDTRACE("can't get filesystem info"); + ASSERT(0); + return; + } #ifdef __linux__ _gdwCdStreamFlags = O_RDONLY | O_NOATIME; #else @@ -163,7 +164,7 @@ CdStreamInit(int32 numChannels) debug("Using no buffered loading for streaming\n"); } */ - void *pBuffer = (void *)RwMallocAlign(CDSTREAM_SECTOR_SIZE, fsInfo.f_bsize); + void *pBuffer = (void *)RwMallocAlign(CDSTREAM_SECTOR_SIZE, (RwUInt32)fsInfo.f_bsize); ASSERT( pBuffer != nil ); gNumImages = 0; @@ -185,27 +186,27 @@ uint32 GetGTA3ImgSize(void) { ASSERT( gImgFiles[0] > 0 ); - struct stat statbuf; + struct stat statbuf; - char path[PATH_MAX]; - realpath(gImgNames[0], path); - if (stat(path, &statbuf) == -1) { + char path[PATH_MAX]; + realpath(gImgNames[0], path); + if (stat(path, &statbuf) == -1) { // Try case-insensitivity char* real = casepath(gImgNames[0], false); if (real) { realpath(real, path); free(real); - if (stat(path, &statbuf) != -1) + if (stat(path, &statbuf) != -1) goto ok; } - CDTRACE("can't get size of gta3.img"); - ASSERT(0); - return 0; - } -ok: - return statbuf.st_size; + CDTRACE("can't get size of gta3.img"); + ASSERT(0); + return 0; + } + ok: + return (uint32)statbuf.st_size; } void @@ -213,15 +214,13 @@ CdStreamShutdown(void) { // Destroying semaphores and free(gpReadInfo) will be done at threads #ifndef ONE_THREAD_PER_CHANNEL - gCdStreamThreadStatus = 2; - sem_post(&gCdStreamSema); -#endif - -#ifdef ONE_THREAD_PER_CHANNEL - for ( int32 i = 0; i < gNumChannels; i++ ) { - gpReadInfo[i].nThreadStatus = 2; - sem_post(&gpReadInfo[i].pStartSemaphore); - } + gCdStreamThreadStatus = 2; + sem_post(gCdStreamSema); +#else + for ( int32 i = 0; i < gNumChannels; i++ ) { + gpReadInfo[i].nThreadStatus = 2; + sem_post(gpReadInfo[i].pStartSemaphore); + } #endif } @@ -243,25 +242,28 @@ CdStreamRead(int32 channel, void *buffer, uint32 offset, uint32 size) pChannel->hFile = hImage - 1; - if ( pChannel->nSectorsToRead != 0 || pChannel->bReading ) - return STREAM_NONE; + if ( pChannel->nSectorsToRead != 0 || pChannel->bReading ) { + flushStream[channel] = 1; + CdStreamSync(channel); + //return STREAM_NONE; + } - pChannel->nStatus = STREAM_NONE; - pChannel->nSectorOffset = _GET_OFFSET(offset); - pChannel->nSectorsToRead = size; - pChannel->pBuffer = buffer; - pChannel->bLocked = 0; + pChannel->nStatus = STREAM_NONE; + pChannel->nSectorOffset = _GET_OFFSET(offset); + pChannel->nSectorsToRead = size; + pChannel->pBuffer = buffer; + pChannel->bLocked = 0; #ifndef ONE_THREAD_PER_CHANNEL - AddToQueue(&gChannelRequestQ, channel); - if ( sem_post(&gCdStreamSema) != 0 ) - printf("Signal Sema Error\n"); + AddToQueue(&gChannelRequestQ, channel); + if ( sem_post(gCdStreamSema) != 0 ) + printf("Signal Sema Error\n"); #else - if ( sem_post(&gpReadInfo[channel].pStartSemaphore) != 0 ) - printf("Signal Sema Error\n"); + if ( sem_post(pChannel->pStartSemaphore) != 0 ) + printf("Signal Sema Error\n"); #endif - return STREAM_SUCCESS; + return STREAM_SUCCESS; } int32 @@ -272,29 +274,29 @@ CdStreamGetStatus(int32 channel) ASSERT( pChannel != nil ); #ifdef ONE_THREAD_PER_CHANNEL - if (pChannel->nThreadStatus == 2) - return STREAM_NONE; + if (pChannel->nThreadStatus == 2) + return STREAM_NONE; #else - if (gCdStreamThreadStatus == 2) - return STREAM_NONE; + if (gCdStreamThreadStatus == 2) + return STREAM_NONE; #endif - if ( pChannel->bReading ) - return STREAM_READING; + if ( pChannel->bReading ) + return STREAM_READING; - if ( pChannel->nSectorsToRead != 0 ) - return STREAM_WAITING; + if ( pChannel->nSectorsToRead != 0 ) + return STREAM_WAITING; - if ( pChannel->nStatus != STREAM_NONE ) - { - int32 status = pChannel->nStatus; + if ( pChannel->nStatus != STREAM_NONE ) + { + int32 status = pChannel->nStatus; - pChannel->nStatus = STREAM_NONE; + pChannel->nStatus = STREAM_NONE; - return status; - } + return status; + } - return STREAM_NONE; + return STREAM_NONE; } int32 @@ -314,30 +316,34 @@ CdStreamSync(int32 channel) if (flushStream[channel]) { #ifdef ONE_THREAD_PER_CHANNEL pChannel->nSectorsToRead = 0; - pthread_kill(gpReadInfo[channel].pChannelThread, SIGINT); + pthread_kill(pChannel->pChannelThread, SIGINT); + if (pChannel->bReading) { + pChannel->bLocked = true; + sem_wait(pChannel->pDoneSemaphore); + } #else + pChannel->nSectorsToRead = 0; if (pChannel->bReading) { - pChannel->nSectorsToRead = 0; + pChannel->bLocked = true; pthread_kill(_gCdStreamThread, SIGINT); - } else { - pChannel->nSectorsToRead = 0; + sem_wait(pChannel->pDoneSemaphore); } #endif pChannel->bReading = false; flushStream[channel] = false; - return STREAM_NONE; + return STREAM_NONE; } - if ( pChannel->nSectorsToRead != 0 ) - { - pChannel->bLocked = true; + if ( pChannel->nSectorsToRead != 0 ) + { + pChannel->bLocked = true; - sem_wait(&pChannel->pDoneSemaphore); - } + sem_wait(pChannel->pDoneSemaphore); + } - pChannel->bReading = false; + pChannel->bReading = false; - return pChannel->nStatus; + return pChannel->nStatus; } void @@ -382,53 +388,52 @@ void *CdStreamThread(void *param) debug("Created cdstream thread\n"); #ifndef ONE_THREAD_PER_CHANNEL - while (gCdStreamThreadStatus != 2) { - sem_wait(&gCdStreamSema); - int32 channel = GetFirstInQueue(&gChannelRequestQ); + while (gCdStreamThreadStatus != 2) { + sem_wait(gCdStreamSema); + int32 channel = GetFirstInQueue(&gChannelRequestQ); #else - int channel = *((int*)param); - while (gpReadInfo[channel].nThreadStatus != 2){ - sem_wait(&gpReadInfo[channel].pStartSemaphore); + int channel = *((int*)param); + while (gpReadInfo[channel].nThreadStatus != 2){ + sem_wait(gpReadInfo[channel].pStartSemaphore); #endif - ASSERT( channel < gNumChannels ); CdReadInfo *pChannel = &gpReadInfo[channel]; ASSERT( pChannel != nil ); -#ifdef ONE_THREAD_PER_CHANNEL - if (gpReadInfo[channel].nThreadStatus == 0){ - gpReadInfo[channel].nThreadStatus = 1; -#else - if (gCdStreamThreadStatus == 0){ - gCdStreamThreadStatus = 1; -#endif - -#ifdef __linux__ - pid_t tid = syscall(SYS_gettid); - int ret = setpriority(PRIO_PROCESS, tid, getpriority(PRIO_PROCESS, getpid()) + 1); -#endif - } - // spurious wakeup or we sent interrupt signal for flushing if(pChannel->nSectorsToRead == 0) - continue; + continue; pChannel->bReading = true; + // Not standard POSIX :shrug: +#ifdef __linux__ +#ifdef ONE_THREAD_PER_CHANNEL + if (gpReadInfo[channel].nThreadStatus == 0){ + gpReadInfo[channel].nThreadStatus = 1; +#else + if (gCdStreamThreadStatus == 0){ + gCdStreamThreadStatus = 1; +#endif + pid_t tid = syscall(SYS_gettid); + int ret = setpriority(PRIO_PROCESS, tid, getpriority(PRIO_PROCESS, getpid()) + 1); + } +#endif if ( pChannel->nStatus == STREAM_NONE ) { - ASSERT(pChannel->hFile >= 0); - ASSERT(pChannel->pBuffer != nil ); + ASSERT(pChannel->hFile >= 0); + ASSERT(pChannel->pBuffer != nil ); lseek(pChannel->hFile, pChannel->nSectorOffset * CDSTREAM_SECTOR_SIZE, SEEK_SET); - if (read(pChannel->hFile, pChannel->pBuffer, pChannel->nSectorsToRead * CDSTREAM_SECTOR_SIZE) == -1) { + if (read(pChannel->hFile, pChannel->pBuffer, pChannel->nSectorsToRead * CDSTREAM_SECTOR_SIZE) == -1) { // pChannel->nSectorsToRead == 0 at this point means we wanted to flush channel - pChannel->nStatus = pChannel->nSectorsToRead == 0 ? STREAM_NONE : STREAM_ERROR; - } else { - pChannel->nStatus = STREAM_NONE; - } + // STREAM_WAITING is a little hack to make CStreaming not process this data + pChannel->nStatus = pChannel->nSectorsToRead == 0 ? STREAM_WAITING : STREAM_ERROR; + } else { + pChannel->nStatus = STREAM_NONE; + } } - + #ifndef ONE_THREAD_PER_CHANNEL RemoveFirstInQueue(&gChannelRequestQ); #endif @@ -437,22 +442,33 @@ void *CdStreamThread(void *param) if ( pChannel->bLocked ) { - sem_post(&pChannel->pDoneSemaphore); + sem_post(pChannel->pDoneSemaphore); } pChannel->bReading = false; } + char semName[20]; #ifndef ONE_THREAD_PER_CHANNEL - for ( int32 i = 0; i < gNumChannels; i++ ) - { - sem_destroy(&gpReadInfo[i].pDoneSemaphore); - } - sem_destroy(&gCdStreamSema); + for ( int32 i = 0; i < gNumChannels; i++ ) + { + sem_close(gpReadInfo[i].pDoneSemaphore); + sprintf(semName,"/semaphore_done%d",i); + sem_unlink(semName); + } + sem_close(gCdStreamSema); + sem_unlink("/semaphore_cd_stream"); free(gChannelRequestQ.items); #else - sem_destroy(&gpReadInfo[channel].pStartSemaphore); - sem_destroy(&gpReadInfo[channel].pDoneSemaphore); + sem_close(gpReadInfo[channel].pStartSemaphore); + sprintf(semName,"/semaphore_start%d",channel); + sem_unlink(semName); + + sem_close(gpReadInfo[channel].pDoneSemaphore); + sprintf(semName,"/semaphore_done%d",channel); + sem_unlink(semName); #endif - free(gpReadInfo); + if (gpReadInfo) + free(gpReadInfo); + gpReadInfo = nil; pthread_exit(nil); } @@ -469,7 +485,7 @@ CdStreamAddImage(char const *path) char* real = casepath(path, false); if (real) { - gImgFiles[gNumImages] = open(real, _gdwCdStreamFlags); + gImgFiles[gNumImages] = open(real, _gdwCdStreamFlags); free(real); } } @@ -502,8 +518,10 @@ CdStreamGetImageName(int32 cd) void CdStreamRemoveImages(void) { - for ( int32 i = 0; i < gNumChannels; i++ ) + for ( int32 i = 0; i < gNumChannels; i++ ) { + flushStream[i] = 1; CdStreamSync(i); + } for ( int32 i = 0; i < gNumImages; i++ ) { |