From 2e7405b76c4165de8dd22f9de2315d4888489723 Mon Sep 17 00:00:00 2001 From: erorcun Date: Fri, 29 Jan 2021 16:25:32 +0300 Subject: CdStreamPosix fixes --- src/core/CdStreamPosix.cpp | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/src/core/CdStreamPosix.cpp b/src/core/CdStreamPosix.cpp index 8a27665a..e18280e5 100644 --- a/src/core/CdStreamPosix.cpp +++ b/src/core/CdStreamPosix.cpp @@ -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) { @@ -102,7 +102,7 @@ CdStreamInitThread(void) #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) { @@ -171,6 +171,7 @@ CdStreamInit(int32 numChannels) gNumImages = 0; gNumChannels = numChannels; + ASSERT( gNumChannels != 0 ); gpReadInfo = (CdReadInfo *)calloc(numChannels, sizeof(CdReadInfo)); ASSERT( gpReadInfo != nil ); @@ -398,7 +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){ -- cgit v1.2.3