thread.c revision 70e5a7403f0e0a3bd292b8287c5fed5772c15270
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt/*
99bbb58ce7c172798fecb21d2d12756c159cff14Tinderbox User * Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC")
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt * Copyright (C) 2000, 2001, 2003 Internet Software Consortium.
0c27b3fe77ac1d5094ba3521e8142d9e7973133fMark Andrews *
0c27b3fe77ac1d5094ba3521e8142d9e7973133fMark Andrews * Permission to use, copy, modify, and/or distribute this software for any
0c27b3fe77ac1d5094ba3521e8142d9e7973133fMark Andrews * purpose with or without fee is hereby granted, provided that the above
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt * copyright notice and this permission notice appear in all copies.
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt *
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt * PERFORMANCE OF THIS SOFTWARE.
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt */
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt/* $Id: thread.c,v 1.17 2007/06/19 23:47:18 tbox Exp $ */
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt/*! \file */
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt#include <config.h>
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt#include <isc/thread.h>
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt#include <isc/util.h>
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt#ifndef THREAD_MINSTACKSIZE
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt#define THREAD_MINSTACKSIZE (64U * 1024)
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt#endif
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Huntisc_result_t
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Huntisc_thread_create(isc_threadfunc_t func, isc_threadarg_t arg,
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt isc_thread_t *thread)
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt{
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt pthread_attr_t attr;
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt size_t stacksize;
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt int ret;
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt pthread_attr_init(&attr);
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt#if defined(HAVE_PTHREAD_ATTR_GETSTACKSIZE) && \
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt defined(HAVE_PTHREAD_ATTR_SETSTACKSIZE)
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt ret = pthread_attr_getstacksize(&attr, &stacksize);
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt if (ret != 0)
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt return (ISC_R_UNEXPECTED);
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt if (stacksize < THREAD_MINSTACKSIZE) {
75e5062bc524bbd1067cd42d5725e8bbe9f2134aMark Andrews ret = pthread_attr_setstacksize(&attr, THREAD_MINSTACKSIZE);
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt if (ret != 0)
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt return (ISC_R_UNEXPECTED);
699f790c49d03a9ef3c3234a72d272bb469203e8Evan Hunt }
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt#endif
dbb012765c735ee0d82dedb116cdc7cf18957814Evan Hunt
acbb301e648b82fcc38b876a44403cf0fe539cc9Evan Hunt#if defined(PTHREAD_SCOPE_SYSTEM) && defined(NEED_PTHREAD_SCOPE_SYSTEM)
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt ret = pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM);
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt if (ret != 0)
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt return (ISC_R_UNEXPECTED);
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt#endif
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt ret = pthread_create(thread, &attr, func, arg);
699f790c49d03a9ef3c3234a72d272bb469203e8Evan Hunt if (ret != 0)
699f790c49d03a9ef3c3234a72d272bb469203e8Evan Hunt return (ISC_R_UNEXPECTED);
699f790c49d03a9ef3c3234a72d272bb469203e8Evan Hunt
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt pthread_attr_destroy(&attr);
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt return (ISC_R_SUCCESS);
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt}
699f790c49d03a9ef3c3234a72d272bb469203e8Evan Hunt
699f790c49d03a9ef3c3234a72d272bb469203e8Evan Huntvoid
699f790c49d03a9ef3c3234a72d272bb469203e8Evan Huntisc_thread_setconcurrency(unsigned int level) {
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt#if defined(CALL_PTHREAD_SETCONCURRENCY)
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt (void)pthread_setconcurrency(level);
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt#else
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt UNUSED(level);
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt#endif
699f790c49d03a9ef3c3234a72d272bb469203e8Evan Hunt}
699f790c49d03a9ef3c3234a72d272bb469203e8Evan Hunt