75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
/*
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* Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC")
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* Copyright (C) 1998-2001 Internet Software Consortium.
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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: condition.c,v 1.36 2007/06/19 23:47:18 tbox Exp $ */
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/*! \file */
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#include <config.h>
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#include <errno.h>
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#include <isc/condition.h>
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#include <isc/msgs.h>
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#include <isc/strerror.h>
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#include <isc/string.h>
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#include <isc/time.h>
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#include <isc/util.h>
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isc_result_t
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isc_condition_waituntil(isc_condition_t *c, isc_mutex_t *m, isc_time_t *t) {
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int presult;
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isc_result_t result;
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struct timespec ts;
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char strbuf[ISC_STRERRORSIZE];
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REQUIRE(c != NULL && m != NULL && t != NULL);
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/*
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* POSIX defines a timespec's tv_sec as time_t.
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*/
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result = isc_time_secondsastimet(t, &ts.tv_sec);
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if (result != ISC_R_SUCCESS)
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return (result);
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/*!
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* POSIX defines a timespec's tv_nsec as long. isc_time_nanoseconds
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* ensures its return value is < 1 billion, which will fit in a long.
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*/
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ts.tv_nsec = (long)isc_time_nanoseconds(t);
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do {
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#if ISC_MUTEX_PROFILE
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presult = pthread_cond_timedwait(c, &m->mutex, &ts);
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#else
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presult = pthread_cond_timedwait(c, m, &ts);
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#endif
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if (presult == 0)
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return (ISC_R_SUCCESS);
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if (presult == ETIMEDOUT)
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return (ISC_R_TIMEDOUT);
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} while (presult == EINTR);
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isc__strerror(presult, strbuf, sizeof(strbuf));
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UNEXPECTED_ERROR(__FILE__, __LINE__,
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"pthread_cond_timedwait() %s %s",
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isc_msgcat_get(isc_msgcat, ISC_MSGSET_GENERAL,
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ISC_MSG_RETURNED, "returned"),
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strbuf);
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return (ISC_R_UNEXPECTED);
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}
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