430 lines
13 KiB
C
430 lines
13 KiB
C
/*
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* Copyright (c) 1995-1997 John Birrell <jb@cimlogic.com.au>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by John Birrell.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Copyright (c) 2003 Craig Rodrigues <rodrigc@attbi.com>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Craig Rodrigues.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY CRAIG RODRIGUES AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/*
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* Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>.
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* Copyright (C) 2001 Jason Evans <jasone@freebsd.org>.
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* Copyright (c) 2002,2003 Alexey Zelkin <phantom@FreeBSD.org>
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* Copyright (c) 2003 Jeff Roberson <jeff@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice(s), this list of conditions and the following disclaimer
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* unmodified other than the allowable addition of one or more
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* copyright notices.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice(s), this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* XXXTHR I rewrote the entire file, can we lose some of the copyrights? */
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#include <sys/param.h>
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#include <errno.h>
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#include <pthread.h>
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#include <pthread_np.h>
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#include <stdlib.h>
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#include <string.h>
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#include "thr_private.h"
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__weak_reference(_pthread_attr_destroy, pthread_attr_destroy);
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__weak_reference(_pthread_attr_init, pthread_attr_init);
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__weak_reference(_pthread_attr_setcreatesuspend_np,
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pthread_attr_setcreatesuspend_np);
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__weak_reference(_pthread_attr_setdetachstate, pthread_attr_setdetachstate);
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__weak_reference(_pthread_attr_setguardsize, pthread_attr_setguardsize);
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__weak_reference(_pthread_attr_setinheritsched, pthread_attr_setinheritsched);
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__weak_reference(_pthread_attr_setschedparam, pthread_attr_setschedparam);
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__weak_reference(_pthread_attr_setschedpolicy, pthread_attr_setschedpolicy);
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__weak_reference(_pthread_attr_setscope, pthread_attr_setscope);
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__weak_reference(_pthread_attr_setstack, pthread_attr_setstack);
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__weak_reference(_pthread_attr_setstackaddr, pthread_attr_setstackaddr);
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__weak_reference(_pthread_attr_setstacksize, pthread_attr_setstacksize);
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__weak_reference(_pthread_attr_get_np, pthread_attr_get_np);
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__weak_reference(_pthread_attr_getdetachstate, pthread_attr_getdetachstate);
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__weak_reference(_pthread_attr_getguardsize, pthread_attr_getguardsize);
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__weak_reference(_pthread_attr_getinheritsched, pthread_attr_getinheritsched);
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__weak_reference(_pthread_attr_getschedparam, pthread_attr_getschedparam);
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__weak_reference(_pthread_attr_getschedpolicy, pthread_attr_getschedpolicy);
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__weak_reference(_pthread_attr_getscope, pthread_attr_getscope);
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__weak_reference(_pthread_attr_getstack, pthread_attr_getstack);
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__weak_reference(_pthread_attr_getstackaddr, pthread_attr_getstackaddr);
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__weak_reference(_pthread_attr_getstacksize, pthread_attr_getstacksize);
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int
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_pthread_attr_init(pthread_attr_t *attr)
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{
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pthread_attr_t pattr;
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if ((pattr = (pthread_attr_t)
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malloc(sizeof(struct pthread_attr))) == NULL)
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return (ENOMEM);
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memcpy(pattr, &pthread_attr_default, sizeof(struct pthread_attr));
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*attr = pattr;
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return (0);
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}
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int
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_pthread_attr_destroy(pthread_attr_t *attr)
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{
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if (attr == NULL || *attr == NULL)
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return (EINVAL);
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free(*attr);
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*attr = NULL;
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return (0);
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}
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int
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_pthread_attr_setcreatesuspend_np(pthread_attr_t *attr)
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{
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if (attr == NULL || *attr == NULL) {
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errno = EINVAL;
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return (-1);
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}
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(*attr)->suspend = PTHREAD_CREATE_SUSPENDED;
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return (0);
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}
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int
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_pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate)
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{
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if (attr == NULL || *attr == NULL ||
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(detachstate != PTHREAD_CREATE_DETACHED &&
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detachstate != PTHREAD_CREATE_JOINABLE))
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return (EINVAL);
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if (detachstate == PTHREAD_CREATE_DETACHED)
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(*attr)->flags |= PTHREAD_DETACHED;
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else
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(*attr)->flags &= ~PTHREAD_DETACHED;
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return (0);
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}
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int
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_pthread_attr_setguardsize(pthread_attr_t *attr, size_t guardsize)
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{
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if (attr == NULL || *attr == NULL)
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return (EINVAL);
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(*attr)->guardsize_attr = roundup(guardsize, _pthread_page_size);
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return (0);
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}
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int
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_pthread_attr_setinheritsched(pthread_attr_t *attr, int sched_inherit)
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{
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if (attr == NULL || *attr == NULL)
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return (EINVAL);
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(*attr)->sched_inherit = sched_inherit;
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return (0);
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}
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int
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_pthread_attr_setschedparam(pthread_attr_t *attr,
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const struct sched_param *param)
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{
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if (attr == NULL || *attr == NULL)
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return (EINVAL);
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if (param == NULL)
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return (ENOTSUP);
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if (param->sched_priority < PTHREAD_MIN_PRIORITY ||
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param->sched_priority > PTHREAD_MAX_PRIORITY)
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return (ENOTSUP);
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(*attr)->prio = param->sched_priority;
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return (0);
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}
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int
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_pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy)
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{
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if (attr == NULL || *attr == NULL)
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return (EINVAL);
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if (policy < SCHED_FIFO || policy > SCHED_RR)
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return (ENOTSUP);
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(*attr)->sched_policy = policy;
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return (0);
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}
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int
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_pthread_attr_setscope(pthread_attr_t *attr, int contentionscope)
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{
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if (attr == NULL || *attr == NULL)
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return (EINVAL);
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if (contentionscope != PTHREAD_SCOPE_PROCESS ||
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contentionscope == PTHREAD_SCOPE_SYSTEM)
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/* We don't support PTHREAD_SCOPE_SYSTEM. */
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return (ENOTSUP);
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(*attr)->flags |= contentionscope;
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return (0);
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}
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int
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_pthread_attr_setstack(pthread_attr_t *attr, void *stackaddr,
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size_t stacksize)
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{
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if (attr == NULL || *attr == NULL || stackaddr == NULL
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|| stacksize < PTHREAD_STACK_MIN)
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return (EINVAL);
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(*attr)->stackaddr_attr = stackaddr;
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(*attr)->stacksize_attr = stacksize;
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return (0);
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}
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int
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_pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr)
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{
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if (attr == NULL || *attr == NULL || stackaddr == NULL)
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return (EINVAL);
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(*attr)->stackaddr_attr = stackaddr;
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return (0);
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}
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int
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_pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize)
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{
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if (attr == NULL || *attr == NULL || stacksize < PTHREAD_STACK_MIN)
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return (EINVAL);
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(*attr)->stacksize_attr = stacksize;
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return (0);
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}
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int
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_pthread_attr_get_np(pthread_t pid, pthread_attr_t *dst)
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{
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int ret;
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if (pid == NULL || dst == NULL || *dst == NULL)
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return (EINVAL);
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if ((ret = _find_thread(pid)) != 0)
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return (ret);
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memcpy(*dst, &pid->attr, sizeof(struct pthread_attr));
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/*
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* Special case, if stack address was not provided by caller
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* of pthread_create(), then return address allocated internally
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*/
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if ((*dst)->stackaddr_attr == NULL)
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(*dst)->stackaddr_attr = pid->stack;
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return (0);
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}
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int
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_pthread_attr_getdetachstate(const pthread_attr_t *attr, int *detachstate)
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{
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if (attr == NULL || *attr == NULL || detachstate == NULL)
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return (EINVAL);
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/* Check if the detached flag is set: */
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if ((*attr)->flags & PTHREAD_DETACHED)
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*detachstate = PTHREAD_CREATE_DETACHED;
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else
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*detachstate = PTHREAD_CREATE_JOINABLE;
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return (0);
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}
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int
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_pthread_attr_getguardsize(const pthread_attr_t *attr, size_t *guardsize)
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{
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if (attr == NULL || *attr == NULL || guardsize == NULL)
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return (EINVAL);
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*guardsize = (*attr)->guardsize_attr;
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return (0);
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}
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int
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_pthread_attr_getinheritsched(const pthread_attr_t *attr, int *sched_inherit)
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{
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if (attr == NULL || *attr == NULL)
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return (EINVAL);
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*sched_inherit = (*attr)->sched_inherit;
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return (0);
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}
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int
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_pthread_attr_getschedparam(const pthread_attr_t *attr, struct sched_param *param)
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{
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if (attr == NULL || *attr == NULL || param == NULL)
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return (EINVAL);
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param->sched_priority = (*attr)->prio;
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return (0);
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}
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int
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_pthread_attr_getschedpolicy(const pthread_attr_t *attr, int *policy)
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{
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if (attr == NULL || *attr == NULL || policy == NULL)
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return (EINVAL);
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*policy = (*attr)->sched_policy;
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return (0);
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}
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int
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_pthread_attr_getscope(const pthread_attr_t *attr, int *contentionscope)
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{
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if (attr == NULL || *attr == NULL || contentionscope == NULL)
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return (EINVAL);
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*contentionscope = (*attr)->flags & PTHREAD_SCOPE_SYSTEM ?
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PTHREAD_SCOPE_SYSTEM : PTHREAD_SCOPE_PROCESS;
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return (0);
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}
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int
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_pthread_attr_getstack(const pthread_attr_t * __restrict attr,
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void ** __restrict stackaddr,
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size_t * __restrict stacksize)
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{
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if (attr == NULL || *attr == NULL || stackaddr == NULL
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|| stacksize == NULL)
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return (EINVAL);
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*stackaddr = (*attr)->stackaddr_attr;
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*stacksize = (*attr)->stacksize_attr;
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return (0);
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}
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int
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_pthread_attr_getstackaddr(const pthread_attr_t *attr, void **stackaddr)
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{
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if (attr == NULL || *attr == NULL || stackaddr == NULL)
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return (EINVAL);
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*stackaddr = (*attr)->stackaddr_attr;
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return (0);
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}
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int
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_pthread_attr_getstacksize(const pthread_attr_t *attr, size_t *stacksize)
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{
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if (attr == NULL || *attr == NULL || stacksize == NULL)
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return (EINVAL);
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*stacksize = (*attr)->stacksize_attr;
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return (0);
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}
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