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