/* * Copyright (C) 2000, 2001 Internet Software Consortium. * * Permission to use, copy, modify, and 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 INTERNET SOFTWARE CONSORTIUM * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL * INTERNET SOFTWARE CONSORTIUM 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.c,v 1.1.1.1 2003/01/10 00:48:34 bbraun Exp $ */ #include <config.h> #include <isc/result.h> #include <isc/time.h> #include <isc/timer.h> #include <dns/types.h> #include <dns/timer.h> #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, isc_boolean_t 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); }