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[winpr,comm] fix stopping of serial threads

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Since most unhandled threads get cancelled do not rely on
SERIAL_EV_WINPR_WAITING flag.
This commit is contained in:
akallabeth 2024-08-22 15:43:41 +02:00
parent 221dd7ce1d
commit d81dd9d9ff
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GPG Key ID: A49454A3FC909FD5
2 changed files with 4 additions and 15 deletions
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13
winpr/libwinpr/comm/comm.c
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@ -1378,19 +1378,6 @@ BOOL CommCloseHandle(HANDLE handle)
if (!CommIsHandled(handle))
return FALSE;
if (pComm->PendingEvents & SERIAL_EV_WINPR_WAITING)
{
ULONG WaitMask = 0;
DWORD BytesReturned = 0;
/* ensures to gracefully stop the WAIT_ON_MASK's loop */
if (!CommDeviceIoControl(handle, IOCTL_SERIAL_SET_WAIT_MASK, &WaitMask, sizeof(ULONG), NULL,
0, &BytesReturned, NULL))
{
CommLog_Print(WLOG_WARN, "failure to WAIT_ON_MASK's loop!");
}
}
DeleteCriticalSection(&pComm->ReadLock);
DeleteCriticalSection(&pComm->WriteLock);
DeleteCriticalSection(&pComm->EventsLock);

6
winpr/libwinpr/comm/comm_serial_sys.c
View File

@ -1075,6 +1075,10 @@ static BOOL set_wait_mask(WINPR_COMM* pComm, const ULONG* pWaitMask)
/* waiting the end of the pending wait_on_mask() */
while (is_wait_set(pComm))
Sleep(10); /* 10ms */
EnterCriticalSection(&pComm->EventsLock);
pComm->PendingEvents &= ~SERIAL_EV_WINPR_STOP;
LeaveCriticalSection(&pComm->EventsLock);
}
/* NB: ensure to leave the critical section before to return */
@ -1473,8 +1477,6 @@ static BOOL wait_on_mask(WINPR_COMM* pComm, ULONG* pOutputMask)
if (pComm->PendingEvents & SERIAL_EV_WINPR_STOP)
{
pComm->PendingEvents &= ~SERIAL_EV_WINPR_STOP;
/* pOutputMask must remain empty but should
* not have been modified.
*