| write.2 (50476) | write.2 (57686) |
|---|---|
| 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.\" @(#)write.2 8.5 (Berkeley) 4/2/94 | 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.\" @(#)write.2 8.5 (Berkeley) 4/2/94 |
| 33.\" $FreeBSD: head/lib/libc/sys/write.2 50476 1999-08-28 00:22:10Z peter $ | 33.\" $FreeBSD: head/lib/libc/sys/write.2 57686 2000-03-02 09:14:21Z sheldonh $ |
| 34.\" 35.Dd April 2, 1994 36.Dt WRITE 2 37.Os BSD 4 38.Sh NAME 39.Nm write , 40.Nm writev , 41.Nm pwrite --- 95 unchanged lines hidden (view full) --- 137and 138.Fn write 139is implemented as a function which locks 140.Va d 141for read and write, then calls 142.Fn _thread_sys_write . 143If the call to 144.Fn _thread_sys_write | 34.\" 35.Dd April 2, 1994 36.Dt WRITE 2 37.Os BSD 4 38.Sh NAME 39.Nm write , 40.Nm writev , 41.Nm pwrite --- 95 unchanged lines hidden (view full) --- 137and 138.Fn write 139is implemented as a function which locks 140.Va d 141for read and write, then calls 142.Fn _thread_sys_write . 143If the call to 144.Fn _thread_sys_write |
| 145would block, a context switch is performed. Before returning, | 145would block, a context switch is performed. 146Before returning, |
| 146.Fn write 147unlocks 148.Va d . 149.Pp 150In the non-threaded library 151.Fn writev 152is implemented as the 153.Va writev --- 6 unchanged lines hidden (view full) --- 160and 161.Fn writev 162is implemented as a function which locks 163.Va d 164for read and write, then calls 165.Fn _thread_sys_writev . 166If the call to 167.Fn _thread_sys_writev | 147.Fn write 148unlocks 149.Va d . 150.Pp 151In the non-threaded library 152.Fn writev 153is implemented as the 154.Va writev --- 6 unchanged lines hidden (view full) --- 161and 162.Fn writev 163is implemented as a function which locks 164.Va d 165for read and write, then calls 166.Fn _thread_sys_writev . 167If the call to 168.Fn _thread_sys_writev |
| 168would block, a context switch is performed. Before returning, | 169would block, a context switch is performed. 170Before returning, |
| 169.Fn writev 170unlocks 171.Va d . 172.Sh RETURN VALUES 173Upon successful completion the number of bytes which were written 174is returned. Otherwise a -1 is returned and the global variable 175.Va errno 176is set to indicate the error. --- 113 unchanged lines hidden --- | 171.Fn writev 172unlocks 173.Va d . 174.Sh RETURN VALUES 175Upon successful completion the number of bytes which were written 176is returned. Otherwise a -1 is returned and the global variable 177.Va errno 178is set to indicate the error. --- 113 unchanged lines hidden --- |