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lock event_callback against lwip_accept for data that arrives right away after an accept (before lwip_accept has processed the new conn)

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goldsimon 2007-11-25 16:04:38 +00:00
parent 77d9233427
commit 9343b767f8
1 changed files with 16 additions and 5 deletions
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21
src/api/sockets.c
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@ -989,16 +989,24 @@ event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len)
* Just count down (or up) if that's the case and we * Just count down (or up) if that's the case and we
* will use the data later. Note that only receive events * will use the data later. Note that only receive events
* can happen before the new socket is set up. */ * can happen before the new socket is set up. */
if (evt == NETCONN_EVT_RCVPLUS) sys_sem_wait(socksem);
conn->socket--; if (conn->socket < 0) {
return; if (evt == NETCONN_EVT_RCVPLUS) {
conn->socket--;
}
sys_sem_signal(socksem);
return;
}
sys_sem_signal(socksem);
} }
sock = get_socket(s); sock = get_socket(s);
if (!sock) if (!sock) {
return; return;
} else }
} else {
return; return;
}
sys_sem_wait(selectsem); sys_sem_wait(selectsem);
/* Set event as required */ /* Set event as required */
@ -1015,6 +1023,9 @@ event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len)
case NETCONN_EVT_SENDMINUS: case NETCONN_EVT_SENDMINUS:
sock->sendevent = 0; sock->sendevent = 0;
break; break;
default:
LWIP_ASSERT("unknown event", 0);
break;
} }
sys_sem_signal(selectsem); sys_sem_signal(selectsem);