pthread_schedparam.3 revision 1.3
$NetBSD: pthread_schedparam.3,v 1.3 2003/07/04 08:43:33 wiz Exp $
Copyright (c) 2002 The NetBSD Foundation, Inc.
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Copyright (C) 2000 Jason Evans <jasone@FreeBSD.org>.
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$FreeBSD: src/lib/libpthread/man/pthread_schedparam.3,v 1.7 2002/09/16 19:29:29 mini Exp $
.Dd January 30, 2003 .Dt PTHREAD_SCHEDPARAM 3 .Os .Sh NAME .Nm pthread_setschedparam , .Nm pthread_getschedparam .Nd thread scheduling parameter manipulation .Sh LIBRARY .Lb libpthread .Sh SYNOPSIS n pthread.h .Ft int .Fn pthread_setschedparam "pthread_t thread" "int policy" "const struct sched_param *param" .Ft int .Fn pthread_getschedparam "pthread_t thread" "int *policy" "struct sched_param *param" .Sh DESCRIPTION The .Fn pthread_setschedparam and .Fn pthread_getschedparam functions set and get the scheduling parameters of individual threads. The scheduling policy for a thread can either be .Dv SCHED_FIFO (first in, first out), .Dv SCHED_RR (round-robin), or .Dv SCHED_OTHER (system default). The thread priority (accessed via .Va param-\*[Gt]sched_priority ) must be at least .Dv PTHREAD_MIN_PRIORITY and no more than .Dv PTHREAD_MAX_PRIORITY . .Sh RETURN VALUES If successful, these functions return 0. Otherwise, an error number is returned to indicate the error. .Sh ERRORS .Fn pthread_setschedparam may fail if: l -tag -width Er t Bq Er EINVAL The value specified by .Va policy is invalid. t Bq Er ENOTSUP Invalid value for scheduling parameters. t Bq Er ESRCH Non-existent thread .Va thread . .El
Copyright (c) 2002 The NetBSD Foundation, Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of The NetBSD Foundation nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
Copyright (C) 2000 Jason Evans <jasone@FreeBSD.org>.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice(s), this list of conditions and the following disclaimer as
the first lines of this file unmodified other than the possible
addition of one or more copyright notices.
2. Redistributions in binary form must reproduce the above copyright
notice(s), this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
$FreeBSD: src/lib/libpthread/man/pthread_schedparam.3,v 1.7 2002/09/16 19:29:29 mini Exp $
.Dd January 30, 2003 .Dt PTHREAD_SCHEDPARAM 3 .Os .Sh NAME .Nm pthread_setschedparam , .Nm pthread_getschedparam .Nd thread scheduling parameter manipulation .Sh LIBRARY .Lb libpthread .Sh SYNOPSIS n pthread.h .Ft int .Fn pthread_setschedparam "pthread_t thread" "int policy" "const struct sched_param *param" .Ft int .Fn pthread_getschedparam "pthread_t thread" "int *policy" "struct sched_param *param" .Sh DESCRIPTION The .Fn pthread_setschedparam and .Fn pthread_getschedparam functions set and get the scheduling parameters of individual threads. The scheduling policy for a thread can either be .Dv SCHED_FIFO (first in, first out), .Dv SCHED_RR (round-robin), or .Dv SCHED_OTHER (system default). The thread priority (accessed via .Va param-\*[Gt]sched_priority ) must be at least .Dv PTHREAD_MIN_PRIORITY and no more than .Dv PTHREAD_MAX_PRIORITY . .Sh RETURN VALUES If successful, these functions return 0. Otherwise, an error number is returned to indicate the error. .Sh ERRORS .Fn pthread_setschedparam may fail if: l -tag -width Er t Bq Er EINVAL The value specified by .Va policy is invalid. t Bq Er ENOTSUP Invalid value for scheduling parameters. t Bq Er ESRCH Non-existent thread .Va thread . .El
p .Fn pthread_getschedparam may fail if: l -tag -width Er t Bq Er ESRCH Non-existent thread .Va thread . .El .Sh STANDARDS .Fn pthread_setschedparam and .Fn pthread_getschedparam conform to .St -p1003.1-96 .