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Small select manpage update.

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manpages for sync and getpriority/setpriority system calls.
manpage for nice utility.
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Ben Gras 2005-07-01 17:57:51 +00:00
parent 7f2e7461e6
commit bfc8f08ae7
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26
man/man1/nice.1 Normal file
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@ -0,0 +1,26 @@
.TH NICE 1
.SH NAME
nice \- invoke command with higher or lower scheduling priority
.SH SYNOPSIS
\fBnice\fP [\fB\-n\fP increment] \fIutility\fP [\fIargument\fP...]
.SH DESCRIPTION
The
.B nice
utility runs \fIutility\fP at a different scheduling priority than
the default. The nicer the process is to others (the higher the
increment), the less favourable the scheduling is. Super-users
can give a negative increment, meaning scheduling is more favourable
than the default.
.SH OPTIONS
.TP
.B \-n \fIincrement
the increment value sets how nice the invoked command will be. 0 is
the same priority as regular processes. 10 is the default.
The range is -20 to 20.
.SH SEE ALSO
getpriority(2), setpriority(2)
.SH AUTHOR
This
.B nice
utility was imported from FreeBSD. This manual page was written
Ben Gras <beng@few.vu.nl>.

37
man/man2/getpriority.2 Normal file
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.TH GETPRIORITY 2 "Jul 1, 2005"
.UC 4
.SH NAME
getpriority, setpriority \- get and set scheduling priority
.SH SYNOPSIS
.nf
.ft B
#include <sys/resource.h>
int getpriority(int \fIwhich\fP, int \fIwho\fP)
int setpriority(int \fIwhich\fP, int \fIwho\fP, int \fIprio\fP)
.SH DESCRIPTION
.B Getpriority
returns the scheduling priority of the process, process group, or user
referred to in \fIwho\fP. Which of the three is indicated in
\fIwhich\fP, by PRIO_PROCESS, PRIO_PGRP and PRIO_USER, respectively.
In Minix, currently only PRIO_PROCESS is implemented.
The range of the returned value is between PRIO_MIN and PRIO_MAX,
currently between -20 and 20, and is the so-called nice value of
a process. The higher the nice value, the less favourable the scheduling
priority.
.B Setpriority
sets the priority indicated by \fIwho\fP and \fIwhich\fP to \fIprio\fP.
\fIprio\fP, which is the nice value, may only be lowered by the super-user.
.SH RETURN VALUES
These functions both return -1 on failure, and set errno in this case.
Because
.B getpriority
can return -1 as the real nice value, the caller has to reset errno
and check errno afterwards to distinguish between an error condition
and a negative nice value.
.SH SEE ALSO
nice(1)
.SH AUTHOR
Ben Gras <beng@few.vu.nl>

2
man/man2/select.2
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@ -27,7 +27,7 @@ up to and including file descriptor
, for reading, writing, or exceptional conditions, respectively.
.B Select
currently supports regular files, pipes, named pipes,
and tty file descriptors. Inet and pty fd's still to be done.
inet, and tty file descriptors. Pty fd's still to be done.
If the
.I readfds

7
man/man2/sync.2
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@ -7,13 +7,14 @@
.TH SYNC 2 "June 30, 1985"
.UC 4
.SH NAME
sync \- update super-block
sync, fsync \- update dirty buffers and super-block
.SH SYNOPSIS
.nf
.ft B
#include <unistd.h>
int sync(void)
int fsync(fd)
.ft R
.fi
.SH DESCRIPTION
@ -22,6 +23,10 @@ causes all information in the file system
buffers that should be on disk to be written out.
This includes modified super blocks,
modified i-nodes, and delayed block I/O.
.B
Fsync
does the same thing, but only for the blocks associated with a specific
file descriptor. Under minix, currently the two calls do the same thing.
.SH "SEE ALSO"
.BR reboot (2),
.BR sync (8).