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| author | Marc Hoersken <info@marc-hoersken.de> | 2020-07-15 20:53:21 +0200 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2020-07-16 10:50:51 +0200 |
| commit | aa86784937ec7868c358dd90ea5e5324f0be750d (patch) | |
| tree | d4dbc2768285d0727d5fe0a34c40f35a1d1853b1 | |
| parent | b1237e64fd03a3b802b9fedde298505e22b3f07f (diff) | |
| download | cygnal-aa86784937ec7868c358dd90ea5e5324f0be750d.tar.gz cygnal-aa86784937ec7868c358dd90ea5e5324f0be750d.tar.bz2 cygnal-aa86784937ec7868c358dd90ea5e5324f0be750d.zip | |
Cygwin: make sure failed sockets always signal writability
Since FD_CONNECT is only given once, we manually need to set
FD_WRITE for connection failed sockets to have consistent
behaviour in programs calling poll/select multiple times.
Example test to non-listening port: curl -v 127.0.0.1:47
| -rw-r--r-- | winsup/cygwin/fhandler_socket_inet.cc | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/winsup/cygwin/fhandler_socket_inet.cc b/winsup/cygwin/fhandler_socket_inet.cc index 74c415d60..e5b0d2d14 100644 --- a/winsup/cygwin/fhandler_socket_inet.cc +++ b/winsup/cygwin/fhandler_socket_inet.cc @@ -376,6 +376,12 @@ fhandler_socket_wsock::evaluate_events (const long event_mask, long &events, if (erase) wsock_events->events &= ~(events & ~(FD_WRITE | FD_CLOSE)); } + /* Since FD_CONNECT is only given once, we manually need to set + FD_WRITE for connection failed sockets to have consistent + behaviour in programs calling poll/select multiple times. + Example test to non-listening port: curl -v 127.0.0.1:47 */ + if ((connect_state () == connect_failed) && (event_mask & FD_WRITE)) + wsock_events->events |= FD_WRITE; UNLOCK_EVENTS; return ret; |