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/*
Unix SMB/CIFS implementation.
Timed event library.
Copyright (C) Andrew Tridgell 1992-1998
Copyright (C) Volker Lendecke 2005-2007
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 "includes.h"
struct idle_event {
struct tevent_timer *te;
struct timeval interval;
char *name;
bool (*handler)(const struct timeval *now, void *private_data);
void *private_data;
};
static void smbd_idle_event_handler(struct tevent_context *ctx,
struct tevent_timer *te,
struct timeval now,
void *private_data)
{
struct idle_event *event =
talloc_get_type_abort(private_data, struct idle_event);
TALLOC_FREE(event->te);
DEBUG(10,("smbd_idle_event_handler: %s %p called\n",
event->name, event->te));
if (!event->handler(&now, event->private_data)) {
DEBUG(10,("smbd_idle_event_handler: %s %p stopped\n",
event->name, event->te));
/* Don't repeat, delete ourselves */
TALLOC_FREE(event);
return;
}
DEBUG(10,("smbd_idle_event_handler: %s %p rescheduled\n",
event->name, event->te));
event->te = tevent_add_timer(ctx, event,
timeval_sum(&now, &event->interval),
smbd_idle_event_handler, event);
/* We can't do much but fail here. */
SMB_ASSERT(event->te != NULL);
}
struct idle_event *event_add_idle(struct tevent_context *event_ctx,
TALLOC_CTX *mem_ctx,
struct timeval interval,
const char *name,
bool (*handler)(const struct timeval *now,
void *private_data),
void *private_data)
{
struct idle_event *result;
struct timeval now = timeval_current();
result = talloc(mem_ctx, struct idle_event);
if (result == NULL) {
DEBUG(0, ("talloc failed\n"));
return NULL;
}
result->interval = interval;
result->handler = handler;
result->private_data = private_data;
if (!(result->name = talloc_asprintf(result, "idle_evt(%s)", name))) {
DEBUG(0, ("talloc failed\n"));
TALLOC_FREE(result);
return NULL;
}
result->te = tevent_add_timer(event_ctx, result,
timeval_sum(&now, &interval),
smbd_idle_event_handler, result);
if (result->te == NULL) {
DEBUG(0, ("event_add_timed failed\n"));
TALLOC_FREE(result);
return NULL;
}
DEBUG(10,("event_add_idle: %s %p\n", result->name, result->te));
return result;
}
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