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-.\" Copyright (c) 1998 HD Associates, 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.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
-.\"
-.\" $FreeBSD$
-.\"
-.Dd March 12, 1998
-.Dt SCHED_GET_PRIORITY_MAX 2
-.Os
-.Sh NAME
-.Nm sched_get_priority_max ,
-.Nm sched_get_priority_min ,
-.Nm sched_rr_get_interval
-.Nd get scheduling parameter limits
-.Sh LIBRARY
-.Lb libc
-.Sh SYNOPSIS
-.In sched.h
-.Ft int
-.Fn sched_get_priority_max "int policy"
-.Ft int
-.Fn sched_get_priority_min "int policy"
-.Ft int
-.Fn sched_rr_get_interval "pid_t pid" "struct timespec *interval"
-.Sh DESCRIPTION
-The
-.Fn sched_get_priority_max
-and
-.Fn sched_get_priority_min
-system calls return the appropriate maximum or minimum, respectively,
-for the scheduling policy specified by
-.Fa policy .
-The
-.Fn sched_rr_get_interval
-system call updates the
-.Fa timespec
-structure referenced by the
-.Fa interval
-argument to contain the current execution time limit (i.e., time
-quantum) for the process specified by
-.Fa pid .
-If
-.Fa pid
-is zero, the current execution time limit for the calling process is
-returned.
-.Pp
-The value of
-.Fa policy
-should be one of the scheduling policy values defined in
-.Fa <sched.h> :
-.Bl -tag -width [SCHED_OTHER]
-.It Bq Er SCHED_FIFO
-First-in-first-out fixed priority scheduling with no round robin scheduling;
-.It Bq Er SCHED_OTHER
-The standard time sharing scheduler;
-.It Bq Er SCHED_RR
-Round-robin scheduling across same priority processes.
-.El
-.Sh RETURN VALUES
-If successful, the
-.Fn sched_get_priority_max
-and
-.Fn sched_get_priority_min
-system calls shall return the appropriate maximum or minimum values,
-respectively.
-If unsuccessful, they shall return a value of -1 and set
-.Fa errno
-to indicate the error.
-.Pp
-.Rv -std sched_rr_get_interval
-.Sh ERRORS
-On failure
-.Va errno
-will be set to the corresponding value:
-.Bl -tag -width Er
-.It Bq Er EINVAL
-The value of the
-.Fa policy
-argument does not represent a defined scheduling policy.
-.It Bq Er ENOSYS
-The
-.Fn sched_get_priority_max ,
-.Fn sched_get_priority_min ,
-and
-.Fn sched_rr_get_interval
-system calls are not supported by the implementation.
-.It Bq Er ESRCH
-No process can be found corresponding to that specified by
-.Fa pid .
-.El
-.Sh SEE ALSO
-.Xr sched_getparam 2 ,
-.Xr sched_getscheduler 2 ,
-.Xr sched_setparam 2 ,
-.Xr sched_setscheduler 2
-.Sh STANDARDS
-The
-.Fn sched_get_priority_max ,
-.Fn sched_get_priority_min ,
-and
-.Fn sched_rr_get_interval
-system calls conform to
-.St -p1003.1b-93 .