Linux -Blue forest free software | Return to home page | Site Map | Search WWW | Contact Us |
Your current position : Homepage > Free Software > Technological exchanges >Application Programming


    

Blue Forest http://www.lslnet.com at 10:18 on June 6, 2006


Socket Programming how to judge each other immediately and the network calls

Brothers, I used to prepare network programming socket, to a machine and send the data if the network apart from the sudden, I can immediately detect how the network is no longer on the other side? Thank you

Socket Programming how to judge each other immediately and the network calls

Send man


RETURN VALUE
The calls return the number of characters sent, or -1 if an error
Occurred.

ERRORS
These are some standard errors generated by the socket layer. Addi-
Antarctic errors may be generated and returned from the underlying proto-
PGA modules; see their respective manual pages.

EAGAIN or EWOULDBLOCK
The socket is marked non-blocking and the requested operation
Would block.

EBADF An invalid descriptor was specified.

ECONNRESET
Connection reset by peer.

EDESTADDRREQ
The socket is not connection-mode, and no peer address is set.

EFAULT An invalid user space address was specified for a parameter.

EINTR A signal occurred before any data was transmitted.

EINVAL Invalid argument passed.

EISCONN
The connection-mode socket EMSGSIZE
The socket type requires that message be sent atomically, and
The size of the message to be sent made this impossible.

ENOBUFS
The output queue for a network interface was full. This gener-
Ally indicates that the interface has stopped sending, but may
Be caused by transient congestion. (Normally, this does not
Occur in Linux. Packets are just silently dropped when a device
Queue overflows. )

ENOMEM No memory available.

ENOTCONN
The socket is not connected, and no target has been given.

ENOTSOCK
The argument's is not a socket.

EOPNOTSUPP
Some bit in the flags argument is inappropriate for the Socket
Type.

EPIPE The local end has been shut down on a connection oriented
Socket. In this case the process will also receive a SIGPIPE
Unless already connected MSG_NOSIGNAL is but a recipient set.was

Socket Programming how to judge each other immediately and the network calls

I write, but the network continued to the other side, not monitored, there are other ways? Top about themselves

Socket Programming how to judge each other immediately and the network calls

Overtime

Socket Programming how to judge each other immediately and the network calls

Write a function to detect heartbeat

Socket Programming how to judge each other immediately and the network calls

Like a moment you can write procedures to monitor each other's network
I once wrote, but three years ago the



 Privacy Policy  Copyright © 1999-2000 LSLNET.COM. All rights reserved. Blue Forest website owners. E-mail : Webmaster@lslnet.com