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r11487: thanks to make test I noticed a dead lock bug, in the last change,

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this only happens with socket_wrapper as socket_connect() returns NT_STATUS_OK
instead of NT_STATUS_MORE_PROCESSING_REQUIRED, and we missed to replace the
fde event handler...

metze
This commit is contained in:
Stefan Metzmacher
2005-11-03 18:38:41 +00:00
committed by Gerald (Jerry) Carter
parent bf0b96f057
commit f04001f280
1 changed files with 41 additions and 21 deletions
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62
source/libcli/wrepl/winsrepl.c
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@ -433,7 +433,7 @@ static NTSTATUS wrepl_request_wait(struct wrepl_request *req)
return req->status;
}
static void wrepl_request_trigger(struct wrepl_request *req);
static void wrepl_request_trigger(struct wrepl_request *req, NTSTATUS status);
/*
connect a wrepl_socket to a WINS server
@ -450,7 +450,7 @@ struct wrepl_request *wrepl_connect_send(struct wrepl_socket *wrepl_socket,
req->wrepl_socket = wrepl_socket;
req->state = WREPL_REQUEST_RECV;
DLIST_ADD(wrepl_socket->recv_queue, req);
DLIST_ADD_END(wrepl_socket->recv_queue, req, struct wrepl_request *);
talloc_set_destructor(req, wrepl_request_destructor);
@ -460,11 +460,21 @@ struct wrepl_request *wrepl_connect_send(struct wrepl_socket *wrepl_socket,
status = socket_connect(wrepl_socket->sock, our_ip, 0, peer_ip,
WINS_REPLICATION_PORT, 0);
if (NT_STATUS_IS_OK(status)) {
talloc_free(wrepl_socket->fde);
wrepl_socket->fde = event_add_fd(wrepl_socket->event_ctx, wrepl_socket,
socket_get_fd(wrepl_socket->sock),
EVENT_FD_WRITE,
wrepl_handler, wrepl_socket);
if (wrepl_socket->fde == NULL) {
status = NT_STATUS_NO_MEMORY;
}
}
if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
req->wrepl_socket = wrepl_socket;
req->state = WREPL_REQUEST_ERROR;
req->status = status;
wrepl_request_trigger(req);
wrepl_request_trigger(req, status);
return req;
}
@ -500,9 +510,6 @@ static void wrepl_request_trigger_handler(struct event_context *ev, struct timed
struct timeval t, void *ptr)
{
struct wrepl_request *req = talloc_get_type(ptr, struct wrepl_request);
struct wrepl_socket *wrepl_socket = req->wrepl_socket;
DLIST_REMOVE(wrepl_socket->send_queue, req);
DLIST_REMOVE(wrepl_socket->recv_queue, req);
if (req->async.fn) {
req->async.fn(req);
}
@ -511,8 +518,23 @@ static void wrepl_request_trigger_handler(struct event_context *ev, struct timed
/*
trigger an immediate event on a wrepl_request
*/
static void wrepl_request_trigger(struct wrepl_request *req)
static void wrepl_request_trigger(struct wrepl_request *req, NTSTATUS status)
{
if (req->state == WREPL_REQUEST_SEND) {
DLIST_REMOVE(req->wrepl_socket->send_queue, req);
}
if (req->state == WREPL_REQUEST_RECV) {
DLIST_REMOVE(req->wrepl_socket->recv_queue, req);
}
if (!NT_STATUS_IS_OK(status)) {
req->state = WREPL_REQUEST_ERROR;
} else {
req->state = WREPL_REQUEST_DONE;
}
req->status = status;
/* a zero timeout means immediate */
event_add_timed(req->wrepl_socket->event_ctx,
req, timeval_zero(),
@ -532,17 +554,19 @@ struct wrepl_request *wrepl_request_send(struct wrepl_socket *wrepl_socket,
req = talloc_zero(wrepl_socket, struct wrepl_request);
if (req == NULL) goto failed;
if (wrepl_socket->dead) {
req->wrepl_socket = wrepl_socket;
req->state = WREPL_REQUEST_ERROR;
req->status = NT_STATUS_INVALID_CONNECTION;
wrepl_request_trigger(req);
return req;
}
req->wrepl_socket = wrepl_socket;
req->state = WREPL_REQUEST_SEND;
DLIST_ADD_END(wrepl_socket->send_queue, req, struct wrepl_request *);
talloc_set_destructor(req, wrepl_request_destructor);
if (wrepl_socket->dead) {
req->wrepl_socket = wrepl_socket;
wrepl_request_trigger(req, NT_STATUS_INVALID_CONNECTION);
return req;
}
wrap.packet = *packet;
req->status = ndr_push_struct_blob(&req->buffer, req, &wrap,
(ndr_push_flags_fn_t)ndr_push_wrepl_wrap);
@ -553,10 +577,6 @@ struct wrepl_request *wrepl_request_send(struct wrepl_socket *wrepl_socket,
NDR_PRINT_DEBUG(wrepl_packet, &wrap.packet);
}
DLIST_ADD(wrepl_socket->send_queue, req);
talloc_set_destructor(req, wrepl_request_destructor);
if (wrepl_socket->request_timeout > 0) {
req->te = event_add_timed(wrepl_socket->event_ctx, req,
timeval_current_ofs(wrepl_socket->request_timeout, 0),