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* fhandler.cc (fhandler_base_overlapped::wait_overlapped): Make

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cancelable.  Remove test for main thread, always add signal_arrived
	to waited objects.
This commit is contained in:
Corinna Vinschen
2011-05-03 10:11:19 +00:00
parent 368ee04706
commit c402095aae
2 changed files with 12 additions and 5 deletions
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6
winsup/cygwin/ChangeLog
View File

@@ -1,3 +1,9 @@
2011-05-03 Corinna Vinschen <corinna@vinschen.de>
* fhandler.cc (fhandler_base_overlapped::wait_overlapped): Make
cancelable. Remove test for main thread, always add signal_arrived
to waited objects.
2011-05-03 Corinna Vinschen <corinna@vinschen.de>
* fhandler_tty.cc (fhandler_tty_slave::read): Set WFMO timeout to 0 for

11
winsup/cygwin/fhandler.cc
View File

@@ -1754,11 +1754,9 @@ fhandler_base_overlapped::wait_overlapped (bool inres, bool writing, DWORD *byte
if (!get_overlapped ()->hEvent)
system_printf ("hEvent is zero?");
#endif
DWORD n = 1;
HANDLE w4[2];
w4[0] = get_overlapped ()->hEvent;
if (&_my_tls == _main_tls)
w4[n++] = signal_arrived;
HANDLE w4[3] = { get_overlapped ()->hEvent, signal_arrived,
pthread::get_cancel_event () };
DWORD n = w4[2] ? 3 : 2;
HANDLE h = writing ? get_output_handle () : get_handle ();
DWORD wfres = WaitForMultipleObjects (n, w4, false, INFINITE);
if (wfres != WAIT_OBJECT_0)
@@ -1766,6 +1764,7 @@ fhandler_base_overlapped::wait_overlapped (bool inres, bool writing, DWORD *byte
*bytes = 0;
BOOL wores = GetOverlappedResult (h, get_overlapped (), bytes, false);
bool signalled = !wores && (wfres == WAIT_OBJECT_0 + 1);
bool canceled = !wores && (wfres == WAIT_OBJECT_0 + 2);
if (signalled)
{
debug_printf ("got a signal");
@@ -1779,6 +1778,8 @@ fhandler_base_overlapped::wait_overlapped (bool inres, bool writing, DWORD *byte
*bytes = (DWORD) -1;
err = 0;
}
else if (canceled)
pthread::static_cancel_self ();
else if (!wores)
{
err = GetLastError ();