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samba-mirror/source3/lib/tevent_wait.c
Volker Lendecke 3da86cc23f s3: Add tevent_wait_send/recv
To me it seems that we might have this functionality already somewere... I
just can't find it. Metze, do you have an idea?

Signed-off-by: Jeremy Allison <jra@samba.org>
2012-07-18 15:54:20 -07:00

84 lines
2.1 KiB
C

/*
Unix SMB/CIFS implementation.
Implement a send/recv interface to wait for an external trigger
Copyright (C) Volker Lendecke 2012
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "lib/replace/replace.h"
#include "talloc.h"
#include "tevent.h"
#include "tevent_wait.h"
#include "lib/util/tevent_unix.h"
struct tevent_wait_state {
struct tevent_immediate *im;
struct tevent_context *ev;
};
struct tevent_req *tevent_wait_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev)
{
struct tevent_req *req;
struct tevent_wait_state *state;
req = tevent_req_create(mem_ctx, &state, struct tevent_wait_state);
if (req == NULL) {
return NULL;
}
state->ev = ev;
state->im = tevent_create_immediate(state);
if (tevent_req_nomem(state->im, req)) {
return tevent_req_post(req, ev);
}
return req;
}
static void tevent_wait_trigger(struct tevent_context *ctx,
struct tevent_immediate *im,
void *private_data);
void tevent_wait_done(struct tevent_req *req)
{
struct tevent_wait_state *state;
if (req == NULL) {
return;
}
state = tevent_req_data(req, struct tevent_wait_state);
tevent_schedule_immediate(state->im, state->ev,
tevent_wait_trigger, req);
}
static void tevent_wait_trigger(struct tevent_context *ctx,
struct tevent_immediate *im,
void *private_data)
{
struct tevent_req *req = talloc_get_type_abort(
private_data, struct tevent_req);
tevent_req_done(req);
}
int tevent_wait_recv(struct tevent_req *req)
{
int err;
if (tevent_req_is_unix_error(req, &err)) {
return err;
}
return 0;
}