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/*
* Copyright (C) 2009 Internet Systems Consortium, Inc. ("ISC")
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: timer_api.c,v 1.4 2009/09/02 23:48:02 tbox Exp $ */
#include <config.h>
#include <unistd.h>
#include <isc/app.h>
#include <isc/magic.h>
#include <isc/mutex.h>
#include <isc/once.h>
#include <isc/timer.h>
#include <isc/util.h>
static isc_mutex_t createlock;
static isc_once_t once = ISC_ONCE_INIT;
static isc_timermgrcreatefunc_t timermgr_createfunc = NULL;
static void
initialize(void) {
RUNTIME_CHECK(isc_mutex_init(&createlock) == ISC_R_SUCCESS);
}
isc_result_t
isc_timer_register(isc_timermgrcreatefunc_t createfunc) {
isc_result_t result = ISC_R_SUCCESS;
RUNTIME_CHECK(isc_once_do(&once, initialize) == ISC_R_SUCCESS);
LOCK(&createlock);
if (timermgr_createfunc == NULL)
timermgr_createfunc = createfunc;
else
result = ISC_R_EXISTS;
UNLOCK(&createlock);
return (result);
}
isc_result_t
isc_timermgr_createinctx(isc_mem_t *mctx, isc_appctx_t *actx,
isc_timermgr_t **managerp)
{
isc_result_t result;
LOCK(&createlock);
REQUIRE(timermgr_createfunc != NULL);
result = (*timermgr_createfunc)(mctx, managerp);
UNLOCK(&createlock);
if (result == ISC_R_SUCCESS)
isc_appctx_settimermgr(actx, *managerp);
return (result);
}
isc_result_t
isc_timermgr_create(isc_mem_t *mctx, isc_timermgr_t **managerp) {
isc_result_t result;
LOCK(&createlock);
REQUIRE(timermgr_createfunc != NULL);
result = (*timermgr_createfunc)(mctx, managerp);
UNLOCK(&createlock);
return (result);
}
void
isc_timermgr_destroy(isc_timermgr_t **managerp) {
REQUIRE(*managerp != NULL && ISCAPI_TIMERMGR_VALID(*managerp));
(*managerp)->methods->destroy(managerp);
ENSURE(*managerp == NULL);
}
isc_result_t
isc_timer_create(isc_timermgr_t *manager, isc_timertype_t type,
isc_time_t *expires, isc_interval_t *interval,
isc_task_t *task, isc_taskaction_t action, const void *arg,
isc_timer_t **timerp)
{
REQUIRE(ISCAPI_TIMERMGR_VALID(manager));
return (manager->methods->timercreate(manager, type, expires,
interval, task, action, arg,
timerp));
}
void
isc_timer_attach(isc_timer_t *timer, isc_timer_t **timerp) {
REQUIRE(ISCAPI_TIMER_VALID(timer));
REQUIRE(timerp != NULL && *timerp == NULL);
timer->methods->attach(timer, timerp);
ENSURE(*timerp == timer);
}
void
isc_timer_detach(isc_timer_t **timerp) {
REQUIRE(timerp != NULL && ISCAPI_TIMER_VALID(*timerp));
(*timerp)->methods->detach(timerp);
ENSURE(*timerp == NULL);
}
isc_result_t
isc_timer_reset(isc_timer_t *timer, isc_timertype_t type,
isc_time_t *expires, isc_interval_t *interval,
isc_boolean_t purge)
{
REQUIRE(ISCAPI_TIMER_VALID(timer));
return (timer->methods->reset(timer, type, expires, interval, purge));
}
isc_result_t
isc_timer_touch(isc_timer_t *timer) {
REQUIRE(ISCAPI_TIMER_VALID(timer));
return (timer->methods->touch(timer));
}
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