2b15cb3d09
Thanks to roberto for providing pointers to wedge this into HEAD. Approved by: roberto
77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
/*
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* Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC")
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* Copyright (C) 2000, 2001, 2003 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: thread.c,v 1.17 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 <isc/thread.h>
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#include <isc/util.h>
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#ifndef THREAD_MINSTACKSIZE
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#define THREAD_MINSTACKSIZE (64U * 1024)
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#endif
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isc_result_t
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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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{
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pthread_attr_t attr;
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size_t stacksize;
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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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if (ret != 0)
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return (ISC_R_UNEXPECTED);
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if (stacksize < THREAD_MINSTACKSIZE) {
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ret = pthread_attr_setstacksize(&attr, THREAD_MINSTACKSIZE);
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if (ret != 0)
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return (ISC_R_UNEXPECTED);
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}
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#endif
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#if defined(PTHREAD_SCOPE_SYSTEM) && defined(NEED_PTHREAD_SCOPE_SYSTEM)
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ret = pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM);
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if (ret != 0)
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return (ISC_R_UNEXPECTED);
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#endif
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ret = pthread_create(thread, &attr, func, arg);
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if (ret != 0)
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return (ISC_R_UNEXPECTED);
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pthread_attr_destroy(&attr);
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return (ISC_R_SUCCESS);
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}
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void
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isc_thread_setconcurrency(unsigned int level) {
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#if defined(CALL_PTHREAD_SETCONCURRENCY)
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(void)pthread_setconcurrency(level);
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#else
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UNUSED(level);
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#endif
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}
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