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0964a94ad5
Mutex profiling code (used when the ISC_MUTEX_PROFILE preprocessor macro
is set to 1) has been broken for the past 3 years (since commit
0bed9bfc28) and nobody complained, which
is a strong indication that this code is not being used these days any
more. External tools for both measuring performance and detecting
locking issues are already wired into various GitLab CI checks. Drop
all code depending on the ISC_MUTEX_PROFILE preprocessor macro being
set.
66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, you can obtain one at https://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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/*! \file */
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#include <errno.h>
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#include <isc/condition.h>
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#include <isc/strerr.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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/*
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* If we have a range error ts.tv_sec is most probably a signed
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* 32 bit value. Set ts.tv_sec to INT_MAX. This is a kludge.
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*/
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if (result == ISC_R_RANGE) {
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ts.tv_sec = INT_MAX;
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} else if (result != ISC_R_SUCCESS) {
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return (result);
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}
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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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presult = pthread_cond_timedwait(c, m, &ts);
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if (presult == 0) {
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return (ISC_R_SUCCESS);
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}
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if (presult == ETIMEDOUT) {
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return (ISC_R_TIMEDOUT);
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}
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} while (presult == EINTR);
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strerror_r(presult, strbuf, sizeof(strbuf));
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UNEXPECTED_ERROR(__FILE__, __LINE__,
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"pthread_cond_timedwait() returned %s", strbuf);
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return (ISC_R_UNEXPECTED);
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}
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