1*eabc0478Schristos /* $NetBSD: condition.c,v 1.2 2024/08/18 20:47:15 christos Exp $ */ 2897be3a4Schristos 3897be3a4Schristos /* 4897be3a4Schristos * Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC") 5897be3a4Schristos * Copyright (C) 1998-2001 Internet Software Consortium. 6897be3a4Schristos * 7897be3a4Schristos * Permission to use, copy, modify, and/or distribute this software for any 8897be3a4Schristos * purpose with or without fee is hereby granted, provided that the above 9897be3a4Schristos * copyright notice and this permission notice appear in all copies. 10897be3a4Schristos * 11897be3a4Schristos * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 12897be3a4Schristos * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 13897be3a4Schristos * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 14897be3a4Schristos * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 15897be3a4Schristos * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 16897be3a4Schristos * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 17897be3a4Schristos * PERFORMANCE OF THIS SOFTWARE. 18897be3a4Schristos */ 19897be3a4Schristos 20897be3a4Schristos /* Id: condition.c,v 1.36 2007/06/19 23:47:18 tbox Exp */ 21897be3a4Schristos 22897be3a4Schristos /*! \file */ 23897be3a4Schristos 24897be3a4Schristos #include <config.h> 25897be3a4Schristos 26897be3a4Schristos #include <errno.h> 27897be3a4Schristos 28897be3a4Schristos #include <isc/condition.h> 29897be3a4Schristos #include <isc/msgs.h> 30897be3a4Schristos #include <isc/strerror.h> 31897be3a4Schristos #include <isc/string.h> 32897be3a4Schristos #include <isc/time.h> 33897be3a4Schristos #include <isc/util.h> 34897be3a4Schristos 35897be3a4Schristos isc_result_t 36897be3a4Schristos isc_condition_waituntil(isc_condition_t *c, isc_mutex_t *m, isc_time_t *t) { 37897be3a4Schristos int presult; 38897be3a4Schristos isc_result_t result; 39897be3a4Schristos struct timespec ts; 40897be3a4Schristos char strbuf[ISC_STRERRORSIZE]; 41897be3a4Schristos 42897be3a4Schristos REQUIRE(c != NULL && m != NULL && t != NULL); 43897be3a4Schristos 44897be3a4Schristos /* 45897be3a4Schristos * POSIX defines a timespec's tv_sec as time_t. 46897be3a4Schristos */ 47897be3a4Schristos result = isc_time_secondsastimet(t, &ts.tv_sec); 48897be3a4Schristos if (result != ISC_R_SUCCESS) 49897be3a4Schristos return (result); 50897be3a4Schristos 51897be3a4Schristos /*! 52897be3a4Schristos * POSIX defines a timespec's tv_nsec as long. isc_time_nanoseconds 53897be3a4Schristos * ensures its return value is < 1 billion, which will fit in a long. 54897be3a4Schristos */ 55897be3a4Schristos ts.tv_nsec = (long)isc_time_nanoseconds(t); 56897be3a4Schristos 57897be3a4Schristos do { 58897be3a4Schristos #if ISC_MUTEX_PROFILE 59897be3a4Schristos presult = pthread_cond_timedwait(c, &m->mutex, &ts); 60897be3a4Schristos #else 61897be3a4Schristos presult = pthread_cond_timedwait(c, m, &ts); 62897be3a4Schristos #endif 63897be3a4Schristos if (presult == 0) 64897be3a4Schristos return (ISC_R_SUCCESS); 65897be3a4Schristos if (presult == ETIMEDOUT) 66897be3a4Schristos return (ISC_R_TIMEDOUT); 67897be3a4Schristos } while (presult == EINTR); 68897be3a4Schristos 69897be3a4Schristos isc__strerror(presult, strbuf, sizeof(strbuf)); 70897be3a4Schristos UNEXPECTED_ERROR(__FILE__, __LINE__, 71897be3a4Schristos "pthread_cond_timedwait() %s %s", 72897be3a4Schristos isc_msgcat_get(isc_msgcat, ISC_MSGSET_GENERAL, 73897be3a4Schristos ISC_MSG_RETURNED, "returned"), 74897be3a4Schristos strbuf); 75897be3a4Schristos return (ISC_R_UNEXPECTED); 76897be3a4Schristos } 77