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fix(stream): fix deadlock.

This commit is contained in:
Haojun Liao 2024-01-24 14:37:46 +08:00
parent b8856931d8
commit 1a45d40607
3 changed files with 8 additions and 2 deletions
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1
include/libs/stream/tstream.h
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@ -879,6 +879,7 @@ int32_t streamMetaGetNumOfTasks(SStreamMeta* pMeta);
SStreamTask* streamMetaAcquireTaskNoLock(SStreamMeta* pMeta, int64_t streamId, int32_t taskId);
SStreamTask* streamMetaAcquireTask(SStreamMeta* pMeta, int64_t streamId, int32_t taskId);
void streamMetaReleaseTask(SStreamMeta* pMeta, SStreamTask* pTask);
SStreamTask* streamMetaAcquireOneTask(SStreamTask* pTask);
void streamMetaClear(SStreamMeta* pMeta);
void streamMetaInitBackend(SStreamMeta* pMeta);
int32_t streamMetaCommit(SStreamMeta* pMeta);

3
source/libs/stream/src/streamExec.c
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@ -763,8 +763,7 @@ static int32_t schedTaskInFuture(SStreamTask* pTask) {
pTask->status.schedIdleTime, ref);
// add one ref count for task
// todo this may be failed, and add ref may be failed.
SStreamTask* pAddRefTask = streamMetaAcquireTask(pTask->pMeta, pTask->id.streamId, pTask->id.taskId);
/*SStreamTask* pAddRefTask = */streamMetaAcquireOneTask(pTask);
if (pTask->schedInfo.pIdleTimer == NULL) {
pTask->schedInfo.pIdleTimer = taosTmrStart(doStreamExecTaskHelper, pTask->status.schedIdleTime, pTask, streamTimer);

6
source/libs/stream/src/streamMeta.c
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@ -647,6 +647,12 @@ SStreamTask* streamMetaAcquireTask(SStreamMeta* pMeta, int64_t streamId, int32_t
return p;
}
SStreamTask* streamMetaAcquireOneTask(SStreamTask* pTask) {
int32_t ref = atomic_add_fetch_32(&pTask->refCnt, 1);
stTrace("s-task:%s acquire task, ref:%d", pTask->id.idStr, ref);
return pTask;
}
void streamMetaReleaseTask(SStreamMeta* UNUSED_PARAM(pMeta), SStreamTask* pTask) {
int32_t ref = atomic_sub_fetch_32(&pTask->refCnt, 1);
if (ref > 0) {