/* $NetBSD: thread.c,v 1.1.1.5 2008/06/21 18:31:36 christos Exp $ */ /* * Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC") * Copyright (C) 2000, 2001, 2003 Internet Software Consortium. * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. */ /* Id: thread.c,v 1.17 2007/06/19 23:47:18 tbox Exp */ /*! \file */ #include <config.h> #include <isc/thread.h> #include <isc/util.h> #ifndef THREAD_MINSTACKSIZE #define THREAD_MINSTACKSIZE (64U * 1024) #endif isc_result_t isc_thread_create(isc_threadfunc_t func, isc_threadarg_t arg, isc_thread_t *thread) { pthread_attr_t attr; size_t stacksize; int ret; pthread_attr_init(&attr); #if defined(HAVE_PTHREAD_ATTR_GETSTACKSIZE) && \ defined(HAVE_PTHREAD_ATTR_SETSTACKSIZE) ret = pthread_attr_getstacksize(&attr, &stacksize); if (ret != 0) return (ISC_R_UNEXPECTED); if (stacksize < THREAD_MINSTACKSIZE) { ret = pthread_attr_setstacksize(&attr, THREAD_MINSTACKSIZE); if (ret != 0) return (ISC_R_UNEXPECTED); } #endif #if defined(PTHREAD_SCOPE_SYSTEM) && defined(NEED_PTHREAD_SCOPE_SYSTEM) ret = pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM); if (ret != 0) return (ISC_R_UNEXPECTED); #endif ret = pthread_create(thread, &attr, func, arg); if (ret != 0) return (ISC_R_UNEXPECTED); pthread_attr_destroy(&attr); return (ISC_R_SUCCESS); } void isc_thread_setconcurrency(unsigned int level) { #if defined(CALL_PTHREAD_SETCONCURRENCY) (void)pthread_setconcurrency(level); #else UNUSED(level); #endif }