diff options
| author | Corinna Vinschen <corinna@vinschen.de> | 2020-03-16 12:20:16 +0300 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2020-03-16 12:20:16 +0300 |
| commit | 7947581905637b837558ae9a2f1d35b8ab433e90 (patch) | |
| tree | dcf7ca9d547064e5723a730d4d866b170ce3c372 | |
| parent | b37a3388cca2df92c204ab8693b09966dca2dad4 (diff) | |
Cygwin: serial: wait for CancelIo completion
Per https://devblogs.microsoft.com/oldnewthing/20110202-00/?p=11613
GetOverlappedResult must be called blocking, waiting for the overlapped
operation to complete.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
| -rw-r--r-- | winsup/cygwin/fhandler_serial.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/winsup/cygwin/fhandler_serial.cc b/winsup/cygwin/fhandler_serial.cc index f92fc7039..f729765e0 100644 --- a/winsup/cygwin/fhandler_serial.cc +++ b/winsup/cygwin/fhandler_serial.cc @@ -135,7 +135,7 @@ fhandler_serial::raw_read (void *ptr, size_t& ulen) PurgeComm apparently discards in-flight bytes while CancelIo only stops the overlapped IO routine. */ CancelIo (get_handle ()); - if (GetOverlappedResult (get_handle (), &io_status, &n, FALSE)) + if (GetOverlappedResult (get_handle (), &io_status, &n, TRUE)) tot = n; else if (GetLastError () != ERROR_OPERATION_ABORTED) goto err; |