[TD-1785]<fix>: taos_close may fail

This commit is contained in:
yihaoDeng 2020-11-14 16:05:46 +00:00
parent 4868c62c94
commit 590682391b
2 changed files with 4 additions and 26 deletions

View File

@ -37,7 +37,7 @@ extern "C" {
#endif
#ifndef TAOS_OS_DEF_EPOLL
#define TAOS_EPOLL_WAIT_TIME -1
#define TAOS_EPOLL_WAIT_TIME 500
#endif
#ifdef TAOS_RANDOM_NETWORK_FAIL

View File

@ -171,40 +171,18 @@ void *taosInitTcpServer(uint32_t ip, uint16_t port, char *label, int numOfThread
}
static void taosStopTcpThread(SThreadObj* pThreadObj) {
pThreadObj->stop = true;
eventfd_t fd = -1;
// save thread into local variable since pThreadObj is freed when thread exits
// save thread into local variable and signal thread to stop
pthread_t thread = pThreadObj->thread;
pThreadObj->stop = true;
if (taosComparePthread(pThreadObj->thread, pthread_self())) {
if (taosComparePthread(thread, pthread_self())) {
pthread_detach(pthread_self());
return;
}
if (taosCheckPthreadValid(pThreadObj->thread)) {
// signal the thread to stop, try graceful method first,
// and use pthread_cancel when failed
struct epoll_event event = { .events = EPOLLIN };
fd = eventfd(1, 0);
if (fd == -1) {
// failed to create eventfd, call pthread_cancel instead, which may result in data corruption:
tError("%s, failed to create eventfd(%s)", pThreadObj->label, strerror(errno));
pThreadObj->stop = true;
pthread_cancel(pThreadObj->thread);
} else if (epoll_ctl(pThreadObj->pollFd, EPOLL_CTL_ADD, fd, &event) < 0) {
// failed to call epoll_ctl, call pthread_cancel instead, which may result in data corruption:
tError("%s, failed to call epoll_ctl(%s)", pThreadObj->label, strerror(errno));
pthread_cancel(pThreadObj->thread);
}
}
// at this step, pThreadObj has already been released
if (taosCheckPthreadValid(thread)) {
pthread_join(thread, NULL);
}
if (fd != -1) taosCloseSocket(fd);
}
void taosStopTcpServer(void *handle) {