GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages
explain_writev_or_die(3) FreeBSD Library Functions Manual explain_writev_or_die(3)

explain_writev_or_die - write data from multiple buffers and report errors

#include <libexplain/writev.h>

ssize_t explain_writev_or_die(int fildes, const struct iovec *data, int data_size);
ssize_t explain_writev_on_error(int fildes, const struct iovec *data, int data_size);

The explain_writev_or_die function is used to call the writev(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_writev(3) function, and then the process terminates by calling exit(EXIT_FAILURE).

The explain_writev_on_error function is used to call the writev(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_writev(3) function, but still returns to the caller.

fildes
The fildes, exactly as to be passed to the writev(2) system call.
data
The data, exactly as to be passed to the writev(2) system call.
data_size
The data_size, exactly as to be passed to the writev(2) system call.

The explain_writev_or_die function only returns on success, see writev(2) for more information. On failure, prints an explanation and exits, it does not return.

The explain_writev_on_error function always returns the value return by the wrapped writev(2) system call.

The explain_writev_or_die function is intended to be used in a fashion similar to the following example:
ssize_t result = explain_writev_or_die(fildes, data, data_size);

writev(2)
write data from multiple buffers
explain_writev(3)
explain writev(2) errors
exit(2)
terminate the calling process

libexplain version 1.3
Copyright (C) 2009 Peter Miller

Search for    or go to Top of page |  Section 3 |  Main Index

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.