tail head cat sleep
QR code linking to this page
Main index Section 9
Go to:
日本語Options

Manual Pages  — ACCF_DATA

NAME

accf_data – buffer incoming connections until data arrives

CONTENTS

SYNOPSIS


options
options
kldload

DESCRIPTION

This is a filter to be placed on a socket that will be using accept() to receive incoming connections.

It prevents the application from receiving the connected descriptor via accept() until data arrives on the connection.

The ACCEPT_FILTER_DATA kernel option is also a module that can be enabled at runtime via kldload(8) if the INET option has been compiled into the kernel.

EXAMPLES

Assuming ACCEPT_FILTER_DATA has been included in the kernel config file or the accf_data module has been loaded, this will enable the data accept filter on the socket sok. 
        struct accept_filter_arg afa;


        bzero(&afa, sizeof(afa));
        strcpy(afa.af_name, "dataready");
        setsockopt(sok, SOL_SOCKET, SO_ACCEPTFILTER, &afa, sizeof(afa));

SEE ALSO

setsockopt(2), accept_filter(9), accf_dns(9), accf_http(9)

HISTORY

The accept filter mechanism and the accf_data filter were introduced in FreeBSD 4.0 .

AUTHORS

This manual page and the filter were written by Alfred Perlstein.
ACCF_DATA (9) November 15, 2000
tail head cat sleep
QR code linking to this page
Main index Section 9
Go to:
日本語Options

Please direct any comments about this manual page service to Ben Bullock. Privacy policy.

“ To err is human...to really foul up requires the root password. ”