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authorJared Yanovich <jaredy@cvs.openbsd.org>2005-08-10 01:29:27 +0000
committerJared Yanovich <jaredy@cvs.openbsd.org>2005-08-10 01:29:27 +0000
commit7be66a7795fe092101cfccee32152784a8b72959 (patch)
tree09fc464cab2d068342fab50d05983bf9466526fd /lib
parentb8127b3c3d0b0c4d9d9db5b2ef392833ae30d6f2 (diff)
- layout, macro, and punctuation tweaks
- refer to formal parameters consistently - kill a duplicate description of EMFILE in ERRORS ok jmc
Diffstat (limited to 'lib')
-rw-r--r--lib/libc/sys/fcntl.251
1 files changed, 24 insertions, 27 deletions
diff --git a/lib/libc/sys/fcntl.2 b/lib/libc/sys/fcntl.2
index 2324babd6f4..a4589c806f0 100644
--- a/lib/libc/sys/fcntl.2
+++ b/lib/libc/sys/fcntl.2
@@ -1,4 +1,4 @@
-.\" $OpenBSD: fcntl.2,v 1.26 2005/05/25 05:23:24 pascoe Exp $
+.\" $OpenBSD: fcntl.2,v 1.27 2005/08/10 01:29:26 jaredy Exp $
.\" $NetBSD: fcntl.2,v 1.6 1995/02/27 12:32:29 cgd Exp $
.\"
.\" Copyright (c) 1983, 1993
@@ -64,7 +64,7 @@ The commands are:
.It Dv F_DUPFD
Return a new descriptor as follows:
.Pp
-.Bl -bullet -compact -offset 4n
+.Bl -bullet -compact
.It
Lowest numbered available descriptor greater than or equal to
.Fa arg
@@ -229,11 +229,11 @@ taken as a pointer to a
(see above).
.Dv F_SETLK
is used to establish shared (or read) locks
-.Dv (F_RDLCK)
-or exclusive (or write) locks,
-.Dv (F_WRLCK) ,
+.Pq Dv F_RDLCK
+or exclusive (or write) locks
+.Pq Dv F_WRLCK ,
as well as remove either type of lock
-.Dv (F_UNLCK) .
+.Pq Dv F_UNLCK .
If a shared or exclusive lock cannot be set,
.Fn fcntl
returns immediately with
@@ -333,7 +333,9 @@ locks conflicts with the type specified in the request.
This interface follows the completely stupid semantics of System V and
.St -p1003.1-88
that require that all locks associated with a file for a given process are
-removed when \fIany\fP file descriptor for that file is closed by that process.
+removed when
+.Em any
+file descriptor for that file is closed by that process.
This semantic means that applications must be aware of any files that
a subroutine library may access.
For example if an application for updating the password file locks the
@@ -403,18 +405,18 @@ The argument
is
.Dv F_SETLK ,
the type of lock
-.Fa (l_type)
+.Pq Fa l_type
is a shared lock
-.Dv (F_RDLCK)
+.Pq Dv F_RDLCK
or exclusive lock
-.Dv (F_WRLCK) ,
+.Pq Dv F_WRLCK ,
and the segment of a file to be locked is already
exclusive-locked by another process;
or the type is an exclusive lock and some portion of the
segment of a file to be locked is already shared-locked or
exclusive-locked by another process.
.It Bq Er EBADF
-.Fa fildes
+.Fa fd
is not a valid open file descriptor.
.Pp
The argument
@@ -424,11 +426,11 @@ is
or
.Dv F_SETLKW ,
the type of lock
-.Fa (l_type)
+.Pq Fa l_type
is a shared lock
-.Dv (F_RDLCK) ,
+.Pq Dv F_RDLCK ,
and
-.Fa fildes
+.Fa fd
is not a valid file descriptor open for reading.
.Pp
The argument
@@ -438,18 +440,12 @@ is
or
.Dv F_SETLKW ,
the type of lock
-.Fa (l_type)
+.Pq Fa l_type
is an exclusive lock
-.Dv (F_WRLCK) ,
+.Pq Dv F_WRLCK ,
and
-.Fa fildes
+.Fa fd
is not a valid file descriptor open for writing.
-.It Bq Er EMFILE
-.Fa cmd
-is
-.Dv F_DUPFD
-and the maximum allowed number of file descriptors are currently
-open.
.It Bq Er EDEADLK
The argument
.Fa cmd
@@ -482,14 +478,14 @@ or
and the data to which
.Fa arg
points is not valid, or
-.Fa fildes
+.Fa fd
refers to a file that does not support locking.
.It Bq Er EMFILE
The argument
.Fa cmd
is
.Dv F_DUPFD
-and the maximum number of file descriptors permitted for the
+and the maximum number of open file descriptors permitted for the
process are already in use,
or no file descriptors greater than or equal to
.Fa arg
@@ -507,8 +503,9 @@ number of locked regions in the system exceeding a system-imposed limit.
.Fa cmd
is
.Dv F_SETOWN
-and
-the process ID given as argument is not in use.
+and the process ID given in
+.Fa arg
+is not in use.
.El
.Sh SEE ALSO
.Xr close 2 ,