From 45d6379135504814ab723b57f0eb8be23393a51d Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 09:24:22 +0200 Subject: Adding upstream version 1:9.16.44. Signed-off-by: Daniel Baumann --- lib/isc/pthreads/condition.c | 72 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 lib/isc/pthreads/condition.c (limited to 'lib/isc/pthreads/condition.c') diff --git a/lib/isc/pthreads/condition.c b/lib/isc/pthreads/condition.c new file mode 100644 index 0000000..7657b18 --- /dev/null +++ b/lib/isc/pthreads/condition.c @@ -0,0 +1,72 @@ +/* + * 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 + +isc_result_t +isc_condition_waituntil(isc_condition_t *c, isc_mutex_t *m, isc_time_t *t) { + int presult; + isc_result_t result; + struct timespec ts; + char strbuf[ISC_STRERRORSIZE]; + + REQUIRE(c != NULL && m != NULL && t != NULL); + + /* + * POSIX defines a timespec's tv_sec as time_t. + */ + result = isc_time_secondsastimet(t, &ts.tv_sec); + + /* + * If we have a range error ts.tv_sec is most probably a signed + * 32 bit value. Set ts.tv_sec to INT_MAX. This is a kludge. + */ + if (result == ISC_R_RANGE) { + ts.tv_sec = INT_MAX; + } else if (result != ISC_R_SUCCESS) { + return (result); + } + + /*! + * POSIX defines a timespec's tv_nsec as long. isc_time_nanoseconds + * ensures its return value is < 1 billion, which will fit in a long. + */ + ts.tv_nsec = (long)isc_time_nanoseconds(t); + + do { +#if ISC_MUTEX_PROFILE + presult = pthread_cond_timedwait(c, &m->mutex, &ts); +#else /* if ISC_MUTEX_PROFILE */ + presult = pthread_cond_timedwait(c, m, &ts); +#endif /* if ISC_MUTEX_PROFILE */ + if (presult == 0) { + return (ISC_R_SUCCESS); + } + if (presult == ETIMEDOUT) { + return (ISC_R_TIMEDOUT); + } + } while (presult == EINTR); + + strerror_r(presult, strbuf, sizeof(strbuf)); + UNEXPECTED_ERROR(__FILE__, __LINE__, + "pthread_cond_timedwait() returned %s", strbuf); + return (ISC_R_UNEXPECTED); +} -- cgit v1.2.3