diff options
Diffstat (limited to 'extmod/modlwip.c')
| -rw-r--r-- | extmod/modlwip.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/extmod/modlwip.c b/extmod/modlwip.c index 6a1dcaef5a..c72849cf9d 100644 --- a/extmod/modlwip.c +++ b/extmod/modlwip.c @@ -1143,8 +1143,11 @@ STATIC mp_uint_t lwip_socket_ioctl(mp_obj_t self_in, mp_uint_t request, uintptr_ ret |= MP_STREAM_POLL_WR; } - if (flags & MP_STREAM_POLL_HUP && socket->state == STATE_PEER_CLOSED) { - ret |= MP_STREAM_POLL_HUP; + if (socket->state == STATE_PEER_CLOSED) { + // Peer-closed socket is both readable and writable: read will + // return EOF, write - error. Without this poll will hang on a + // socket which was closed by peer. + ret |= flags & (MP_STREAM_POLL_RD | MP_STREAM_POLL_WR); } } else { |