1258945Sroberto/* 2258945Sroberto * Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC") 3258945Sroberto * Copyright (C) 2000, 2001, 2003 Internet Software Consortium. 4258945Sroberto * 5258945Sroberto * Permission to use, copy, modify, and/or distribute this software for any 6258945Sroberto * purpose with or without fee is hereby granted, provided that the above 7258945Sroberto * copyright notice and this permission notice appear in all copies. 8258945Sroberto * 9258945Sroberto * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 10258945Sroberto * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 11258945Sroberto * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 12258945Sroberto * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 13258945Sroberto * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 14258945Sroberto * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 15258945Sroberto * PERFORMANCE OF THIS SOFTWARE. 16258945Sroberto */ 17258945Sroberto 18258945Sroberto/* $Id: thread.c,v 1.17 2007/06/19 23:47:18 tbox Exp $ */ 19258945Sroberto 20258945Sroberto/*! \file */ 21258945Sroberto 22258945Sroberto#include <config.h> 23258945Sroberto 24258945Sroberto#include <isc/thread.h> 25258945Sroberto#include <isc/util.h> 26258945Sroberto 27258945Sroberto#ifndef THREAD_MINSTACKSIZE 28258945Sroberto#define THREAD_MINSTACKSIZE (64U * 1024) 29258945Sroberto#endif 30258945Sroberto 31258945Srobertoisc_result_t 32258945Srobertoisc_thread_create(isc_threadfunc_t func, isc_threadarg_t arg, 33258945Sroberto isc_thread_t *thread) 34258945Sroberto{ 35258945Sroberto pthread_attr_t attr; 36258945Sroberto size_t stacksize; 37258945Sroberto int ret; 38258945Sroberto 39258945Sroberto pthread_attr_init(&attr); 40258945Sroberto 41258945Sroberto#if defined(HAVE_PTHREAD_ATTR_GETSTACKSIZE) && \ 42258945Sroberto defined(HAVE_PTHREAD_ATTR_SETSTACKSIZE) 43258945Sroberto ret = pthread_attr_getstacksize(&attr, &stacksize); 44258945Sroberto if (ret != 0) 45258945Sroberto return (ISC_R_UNEXPECTED); 46258945Sroberto 47258945Sroberto if (stacksize < THREAD_MINSTACKSIZE) { 48258945Sroberto ret = pthread_attr_setstacksize(&attr, THREAD_MINSTACKSIZE); 49258945Sroberto if (ret != 0) 50258945Sroberto return (ISC_R_UNEXPECTED); 51258945Sroberto } 52258945Sroberto#endif 53258945Sroberto 54258945Sroberto#if defined(PTHREAD_SCOPE_SYSTEM) && defined(NEED_PTHREAD_SCOPE_SYSTEM) 55258945Sroberto ret = pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM); 56258945Sroberto if (ret != 0) 57258945Sroberto return (ISC_R_UNEXPECTED); 58258945Sroberto#endif 59258945Sroberto 60258945Sroberto ret = pthread_create(thread, &attr, func, arg); 61258945Sroberto if (ret != 0) 62258945Sroberto return (ISC_R_UNEXPECTED); 63258945Sroberto 64258945Sroberto pthread_attr_destroy(&attr); 65258945Sroberto 66258945Sroberto return (ISC_R_SUCCESS); 67258945Sroberto} 68258945Sroberto 69258945Srobertovoid 70258945Srobertoisc_thread_setconcurrency(unsigned int level) { 71258945Sroberto#if defined(CALL_PTHREAD_SETCONCURRENCY) 72258945Sroberto (void)pthread_setconcurrency(level); 73258945Sroberto#else 74258945Sroberto UNUSED(level); 75258945Sroberto#endif 76258945Sroberto} 77