1*eabc0478Schristos /* $NetBSD: thread.c,v 1.2 2024/08/18 20:47:15 christos Exp $ */ 2897be3a4Schristos 3897be3a4Schristos /* 4897be3a4Schristos * Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC") 5897be3a4Schristos * Copyright (C) 2000, 2001, 2003 Internet Software Consortium. 6897be3a4Schristos * 7897be3a4Schristos * Permission to use, copy, modify, and/or distribute this software for any 8897be3a4Schristos * purpose with or without fee is hereby granted, provided that the above 9897be3a4Schristos * copyright notice and this permission notice appear in all copies. 10897be3a4Schristos * 11897be3a4Schristos * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 12897be3a4Schristos * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 13897be3a4Schristos * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 14897be3a4Schristos * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 15897be3a4Schristos * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 16897be3a4Schristos * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 17897be3a4Schristos * PERFORMANCE OF THIS SOFTWARE. 18897be3a4Schristos */ 19897be3a4Schristos 20897be3a4Schristos /* Id: thread.c,v 1.17 2007/06/19 23:47:18 tbox Exp */ 21897be3a4Schristos 22897be3a4Schristos /*! \file */ 23897be3a4Schristos 24897be3a4Schristos #include <config.h> 25897be3a4Schristos 26897be3a4Schristos #include <isc/thread.h> 27897be3a4Schristos #include <isc/util.h> 28897be3a4Schristos 29897be3a4Schristos #ifndef THREAD_MINSTACKSIZE 30897be3a4Schristos #define THREAD_MINSTACKSIZE (64U * 1024) 31897be3a4Schristos #endif 32897be3a4Schristos 33897be3a4Schristos isc_result_t 34897be3a4Schristos isc_thread_create(isc_threadfunc_t func, isc_threadarg_t arg, 35897be3a4Schristos isc_thread_t *thread) 36897be3a4Schristos { 37897be3a4Schristos pthread_attr_t attr; 38897be3a4Schristos size_t stacksize; 39897be3a4Schristos int ret; 40897be3a4Schristos 41897be3a4Schristos pthread_attr_init(&attr); 42897be3a4Schristos 43897be3a4Schristos #if defined(HAVE_PTHREAD_ATTR_GETSTACKSIZE) && \ 44897be3a4Schristos defined(HAVE_PTHREAD_ATTR_SETSTACKSIZE) 45897be3a4Schristos ret = pthread_attr_getstacksize(&attr, &stacksize); 46897be3a4Schristos if (ret != 0) 47897be3a4Schristos return (ISC_R_UNEXPECTED); 48897be3a4Schristos 49897be3a4Schristos if (stacksize < THREAD_MINSTACKSIZE) { 50897be3a4Schristos ret = pthread_attr_setstacksize(&attr, THREAD_MINSTACKSIZE); 51897be3a4Schristos if (ret != 0) 52897be3a4Schristos return (ISC_R_UNEXPECTED); 53897be3a4Schristos } 54897be3a4Schristos #endif 55897be3a4Schristos 56897be3a4Schristos #if defined(PTHREAD_SCOPE_SYSTEM) && defined(NEED_PTHREAD_SCOPE_SYSTEM) 57897be3a4Schristos ret = pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM); 58897be3a4Schristos if (ret != 0) 59897be3a4Schristos return (ISC_R_UNEXPECTED); 60897be3a4Schristos #endif 61897be3a4Schristos 62897be3a4Schristos ret = pthread_create(thread, &attr, func, arg); 63897be3a4Schristos if (ret != 0) 64897be3a4Schristos return (ISC_R_UNEXPECTED); 65897be3a4Schristos 66897be3a4Schristos pthread_attr_destroy(&attr); 67897be3a4Schristos 68897be3a4Schristos return (ISC_R_SUCCESS); 69897be3a4Schristos } 70897be3a4Schristos 71897be3a4Schristos void 72897be3a4Schristos isc_thread_setconcurrency(unsigned int level) { 73897be3a4Schristos #if defined(CALL_PTHREAD_SETCONCURRENCY) 74897be3a4Schristos (void)pthread_setconcurrency(level); 75897be3a4Schristos #else 76897be3a4Schristos UNUSED(level); 77897be3a4Schristos #endif 78897be3a4Schristos } 79