diff options
Diffstat (limited to 'erts/emulator')
| -rw-r--r-- | erts/emulator/drivers/common/inet_drv.c | 44 |
1 files changed, 31 insertions, 13 deletions
diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c index c93966d24f..42f08cdc89 100644 --- a/erts/emulator/drivers/common/inet_drv.c +++ b/erts/emulator/drivers/common/inet_drv.c @@ -1077,6 +1077,7 @@ typedef struct { long forced_events; /* Mask of events that are forcefully signalled on windows see winsock_event_select for details */ + int err; /* Keeps error code for closed socket */ int send_would_block; /* Last send attempt failed with "WOULDBLOCK" */ #endif ErlDrvPort port; /* the port identifier */ @@ -9063,6 +9064,7 @@ static ErlDrvData inet_start(ErlDrvPort port, int size, int protocol) desc->event_mask = 0; #ifdef __WIN32__ desc->forced_events = 0; + desc->err = 0; desc->send_would_block = 0; #endif desc->port = port; @@ -10914,7 +10916,7 @@ static int winsock_event_select(inet_descriptor *desc, int flags, int on) { int save_event_mask = desc->event_mask; - desc->forced_events = 0; + desc->forced_events &= FD_CLOSE; if (on) desc->event_mask |= flags; else @@ -10966,7 +10968,7 @@ static int winsock_event_select(inet_descriptor *desc, int flags, int on) TIMEVAL tmo = {0,0}; FD_SET fds; int ret; - + FD_ZERO(&fds); FD_SET(desc->s,&fds); do_force = (select(desc->s+1,0,&fds,0,&tmo) > 0); @@ -10983,7 +10985,7 @@ static int winsock_event_select(inet_descriptor *desc, int flags, int on) FD_SET fds; int ret; unsigned long arg; - + FD_ZERO(&fds); FD_SET(desc->s,&fds); ret = select(desc->s+1,&fds,0,0,&tmo); @@ -11022,13 +11024,16 @@ static void tcp_inet_event(ErlDrvData e, ErlDrvEvent event) goto error; } - DEBUGF((" => event=%02X, mask=%02X\r\n", - netEv.lNetworkEvents, desc->inet.event_mask)); + DEBUGF((" => event=%02X, mask=%02X, forced=%02X\r\n", + netEv.lNetworkEvents, desc->inet.event_mask, + desc->inet.forced_events)); /* Add the forced events. */ - netEv.lNetworkEvents |= desc->inet.forced_events; + if (desc->inet.forced_events & FD_CLOSE) + netEv.iErrorCode[FD_CLOSE_BIT] = desc->inet.err; + /* * Calling WSAEventSelect() with a mask of 0 doesn't always turn off * all events. To avoid acting on events we don't want, we mask @@ -11048,16 +11053,29 @@ static void tcp_inet_event(ErlDrvData e, ErlDrvEvent event) goto error; } if (netEv.lNetworkEvents & FD_CLOSE) { - /* + + /* We may not get any more FD_CLOSE events so we + keep this event and always signal it from + this moment on. */ + if ((desc->inet.forced_events & FD_CLOSE) == 0) { + desc->inet.forced_events |= FD_CLOSE; + desc->inet.err = netEv.iErrorCode[FD_CLOSE_BIT]; + } + + /* * We must loop to read out the remaining packets (if any). */ for (;;) { - DEBUGF(("Retrying read due to closed port\r\n")); - /* XXX The buffer will be thrown away on error (empty que). - Possible SMP FIXME. */ - if (!desc->inet.active && (desc->inet.opt) == NULL) { - goto error; - } + + /* if passive and no subscribers, break loop */ + if (!desc->inet.active && desc->inet.opt == NULL) { + /* do not trigger close event when socket is + transitioned to passive */ + netEv.lNetworkEvents &= ~FD_CLOSE; + break; + } + + DEBUGF(("Retrying read due to FD_CLOSE\r\n")); if (tcp_inet_input(desc, event) < 0) { goto error; } |