| getpriority.2 (108087) | getpriority.2 (131504) |
|---|---|
| 1.\" Copyright (c) 1980, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)getpriority.2 8.1 (Berkeley) 6/4/93 | 1.\" Copyright (c) 1980, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)getpriority.2 8.1 (Berkeley) 6/4/93 |
| 33.\" $FreeBSD: head/lib/libc/sys/getpriority.2 108087 2002-12-19 09:40:28Z ru $ | 33.\" $FreeBSD: head/lib/libc/sys/getpriority.2 131504 2004-07-02 23:52:20Z ru $ |
| 34.\" 35.Dd June 4, 1993 36.Dt GETPRIORITY 2 37.Os 38.Sh NAME 39.Nm getpriority , 40.Nm setpriority 41.Nd get/set program scheduling priority --- 37 unchanged lines hidden (view full) --- 79and a user ID for 80.Dv PRIO_USER ) . 81A zero value of 82.Fa who 83denotes the current process, process group, or user. 84The 85.Fa prio 86argument | 34.\" 35.Dd June 4, 1993 36.Dt GETPRIORITY 2 37.Os 38.Sh NAME 39.Nm getpriority , 40.Nm setpriority 41.Nd get/set program scheduling priority --- 37 unchanged lines hidden (view full) --- 79and a user ID for 80.Dv PRIO_USER ) . 81A zero value of 82.Fa who 83denotes the current process, process group, or user. 84The 85.Fa prio 86argument |
| 87is a value in the range -20 to 20. The default priority is 0; | 87is a value in the range -20 to 20. 88The default priority is 0; |
| 88lower priorities cause more favorable scheduling. 89.Pp 90The 91.Fn getpriority 92system call returns the highest priority (lowest numerical value) | 89lower priorities cause more favorable scheduling. 90.Pp 91The 92.Fn getpriority 93system call returns the highest priority (lowest numerical value) |
| 93enjoyed by any of the specified processes. The | 94enjoyed by any of the specified processes. 95The |
| 94.Fn setpriority 95system call sets the priorities of all of the specified processes | 96.Fn setpriority 97system call sets the priorities of all of the specified processes |
| 96to the specified value. Only the super-user may lower priorities. | 98to the specified value. 99Only the super-user may lower priorities. |
| 97.Sh RETURN VALUES 98Since 99.Fn getpriority 100can legitimately return the value -1, it is necessary 101to clear the external variable 102.Va errno 103prior to the 104call, then check it afterward to determine --- 47 unchanged lines hidden --- | 100.Sh RETURN VALUES 101Since 102.Fn getpriority 103can legitimately return the value -1, it is necessary 104to clear the external variable 105.Va errno 106prior to the 107call, then check it afterward to determine --- 47 unchanged lines hidden --- |