mirror of
https://gitlab.isc.org/isc-projects/bind9
synced 2025-09-05 17:15:31 +00:00
3608abc8fa
In a number of situations in pthreads-related code, a common sequence of
steps is taken: if the value returned by a library function is not 0,
pass errno to strerror_r(), log the string returned by the latter, and
immediately abort execution. Add an ERRNO_CHECK() preprocessor macro
which takes those exact steps and use it wherever (conveniently)
possible.
Notes:
1. The "log the return value of strerror_r() and abort" pattern is used
in a number of other places that this commit does not touch; only
"!= 0" checks followed by isc_error_fatal() calls with
non-customized error messages are replaced here.
2. This change temporarily breaks file name & line number reporting for
isc__mutex_init() errors, to prevent breaking the build. This issue
will be rectified in a subsequent change.
-
116 lines
3.1 KiB
C
116 lines
3.1 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* SPDX-License-Identifier: MPL-2.0
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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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#if defined(HAVE_SCHED_H)
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#include <sched.h>
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#endif /* if defined(HAVE_SCHED_H) */
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#if defined(HAVE_CPUSET_H)
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#include <sys/cpuset.h>
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#include <sys/param.h>
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#endif /* if defined(HAVE_CPUSET_H) */
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#if defined(HAVE_SYS_PROCSET_H)
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#include <sys/processor.h>
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#include <sys/procset.h>
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#include <sys/types.h>
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#endif /* if defined(HAVE_SYS_PROCSET_H) */
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#include <isc/strerr.h>
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#include <isc/thread.h>
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#include <isc/util.h>
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#include "trampoline_p.h"
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#ifndef THREAD_MINSTACKSIZE
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#define THREAD_MINSTACKSIZE (1024U * 1024)
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#endif /* ifndef THREAD_MINSTACKSIZE */
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void
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isc_thread_create(isc_threadfunc_t func, isc_threadarg_t arg,
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isc_thread_t *thread) {
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pthread_attr_t attr;
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isc__trampoline_t *trampoline_arg;
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trampoline_arg = isc__trampoline_get(func, arg);
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#if defined(HAVE_PTHREAD_ATTR_GETSTACKSIZE) && \
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defined(HAVE_PTHREAD_ATTR_SETSTACKSIZE)
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size_t stacksize;
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#endif /* if defined(HAVE_PTHREAD_ATTR_GETSTACKSIZE) && \
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* defined(HAVE_PTHREAD_ATTR_SETSTACKSIZE) */
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int ret;
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pthread_attr_init(&attr);
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#if defined(HAVE_PTHREAD_ATTR_GETSTACKSIZE) && \
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defined(HAVE_PTHREAD_ATTR_SETSTACKSIZE)
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ret = pthread_attr_getstacksize(&attr, &stacksize);
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ERRNO_CHECK(pthread_attr_getstacksize, ret);
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if (stacksize < THREAD_MINSTACKSIZE) {
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ret = pthread_attr_setstacksize(&attr, THREAD_MINSTACKSIZE);
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ERRNO_CHECK(pthread_attr_setstacksize, ret);
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}
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#endif /* if defined(HAVE_PTHREAD_ATTR_GETSTACKSIZE) && \
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* defined(HAVE_PTHREAD_ATTR_SETSTACKSIZE) */
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ret = pthread_create(thread, &attr, isc__trampoline_run,
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trampoline_arg);
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ERRNO_CHECK(pthread_create, ret);
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pthread_attr_destroy(&attr);
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return;
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}
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void
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isc_thread_join(isc_thread_t thread, isc_threadresult_t *result) {
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int ret = pthread_join(thread, result);
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ERRNO_CHECK(pthread_join, ret);
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}
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void
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isc_thread_setname(isc_thread_t thread, const char *name) {
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#if defined(HAVE_PTHREAD_SETNAME_NP) && !defined(__APPLE__)
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/*
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* macOS has pthread_setname_np but only works on the
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* current thread so it's not used here
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*/
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#if defined(__NetBSD__)
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(void)pthread_setname_np(thread, name, NULL);
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#else /* if defined(__NetBSD__) */
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(void)pthread_setname_np(thread, name);
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#endif /* if defined(__NetBSD__) */
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#elif defined(HAVE_PTHREAD_SET_NAME_NP)
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(void)pthread_set_name_np(thread, name);
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#else /* if defined(HAVE_PTHREAD_SETNAME_NP) && !defined(__APPLE__) */
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UNUSED(thread);
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UNUSED(name);
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#endif /* if defined(HAVE_PTHREAD_SETNAME_NP) && !defined(__APPLE__) */
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}
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void
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isc_thread_yield(void) {
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#if defined(HAVE_SCHED_YIELD)
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sched_yield();
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#elif defined(HAVE_PTHREAD_YIELD)
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pthread_yield();
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#elif defined(HAVE_PTHREAD_YIELD_NP)
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pthread_yield_np();
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#endif /* if defined(HAVE_SCHED_YIELD) */
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}
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