/* $NetBSD: timer.c,v 1.1.4.2 2024/02/29 11:38:42 martin Exp $ */ /* * Copyright (C) Internet Systems Consortium, Inc. ("ISC") * * SPDX-License-Identifier: MPL-2.0 * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, you can obtain one at https://mozilla.org/MPL/2.0/. * * See the COPYRIGHT file distributed with this work for additional * information regarding copyright ownership. */ /*! \file */ #include #include #include #include #include #include #define CHECK(op) \ do { \ result = (op); \ if (result != ISC_R_SUCCESS) \ goto failure; \ } while (0) isc_result_t dns_timer_setidle(isc_timer_t *timer, unsigned int maxtime, unsigned int idletime, bool purge) { isc_result_t result; isc_interval_t maxinterval, idleinterval; isc_time_t expires; /* Compute the time of expiry. */ isc_interval_set(&maxinterval, maxtime, 0); CHECK(isc_time_nowplusinterval(&expires, &maxinterval)); /* * Compute the idle interval, and add a spare nanosecond to * work around the silly limitation of the ISC timer interface * that you cannot specify an idle interval of zero. */ isc_interval_set(&idleinterval, idletime, 1); CHECK(isc_timer_reset(timer, isc_timertype_once, &expires, &idleinterval, purge)); failure: return (result); }