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Bug in last version (fix to close problems): netconn thread might get active before calling its callback, so conn was already deallocated.

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This commit is contained in:
goldsimon 2007-07-03 20:20:33 +00:00
parent 9a4a5b1816
commit 2a77b9fcc7
1 changed files with 15 additions and 8 deletions
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23
src/api/api_msg.c
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@ -464,6 +464,13 @@ do_close_internal(struct netconn *conn)
conn->state = NETCONN_NONE;
conn->pcb.tcp = NULL;
conn->err = err;
/* Trigger select() in socket layer */
if (conn->callback) {
/* this should send something else so the errorfd is set,
not the read and write fd! */
(*conn->callback)(conn, NETCONN_EVT_RCVPLUS, 0);
(*conn->callback)(conn, NETCONN_EVT_SENDPLUS, 0);
}
/* wake up the application task */
sys_mbox_post(conn->mbox, NULL);
break;
@ -503,26 +510,26 @@ do_delconn(struct api_msg_msg *msg)
case NETCONN_TCP:
msg->conn->state = NETCONN_CLOSE;
do_close_internal(msg->conn);
/* conn->callback is called inside do_close_internal, before releasing
the application thread, so we can return at this point! */
return;
break;
#endif /* LWIP_TCP */
default:
break;
}
}
/* tcp netconns don't come here! */
/* Trigger select() in socket layer */
if (msg->conn->callback) {
/* this send should something else so the errorfd is set,
not the read and write fd! */
(*msg->conn->callback)(msg->conn, NETCONN_EVT_RCVPLUS, 0);
(*msg->conn->callback)(msg->conn, NETCONN_EVT_SENDPLUS, 0);
}
if ((msg->conn->mbox != SYS_MBOX_NULL)
#if LWIP_TCP
/* for tcp netconns, do_close_internal ACKs the message */
&& (NETCONNTYPE_GROUP(msg->conn->type) != NETCONN_TCP))
#else
)
#endif
{
if (msg->conn->mbox != SYS_MBOX_NULL) {
TCPIP_APIMSG_ACK(msg);
}
}