/* * pthread_detach.c * * Description: * This translation unit implements functions related to thread * synchronisation. * * -------------------------------------------------------------------------- * * Pthreads-win32 - POSIX Threads Library for Win32 * Copyright(C) 1998 John E. Bossom * Copyright(C) 1999,2005 Pthreads-win32 contributors * * Contact Email: rpj@callisto.canberra.edu.au * * The current list of contributors is contained * in the file CONTRIBUTORS included with the source * code distribution. The list can also be seen at the * following World Wide Web location: * http://sources.redhat.com/pthreads-win32/contributors.html * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library in the file COPYING.LIB; * if not, write to the Free Software Foundation, Inc., * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA */ #include "pthread.h" #include "implement.h" /* * Not needed yet, but defining it should indicate clashes with build target * environment that should be fixed. */ #include <signal.h> int pthread_detach (pthread_t thread) /* * ------------------------------------------------------ * DOCPUBLIC * This function detaches the given thread. * * PARAMETERS * thread * an instance of a pthread_t * * * DESCRIPTION * This function detaches the given thread. You may * detach the main thread or to detach a joinable thread * (You should have used pthread_attr_t to create the * thread as detached!) * NOTE: detached threads cannot be joined nor canceled; * storage is freed immediately on termination. * * RESULTS * 0 successfully detached the thread, * EINVAL thread is not a joinable thread, * ENOSPC a required resource has been exhausted, * ESRCH no thread could be found for 'thread', * * ------------------------------------------------------ */ { int result; ptw32_thread_t * tp = (ptw32_thread_t *) thread.p; result = pthread_kill (thread, 0); if (0 != result) { return result; } if (tp->detachState == PTHREAD_CREATE_DETACHED) { result = EINVAL; } else { result = 0; tp->detachState = PTHREAD_CREATE_DETACHED; } return (result); } /* pthread_detach */