FCGI(3pm) User Contributed Perl Documentation FCGI(3pm)
NAME
FCGI - Fast CGI module
SYNOPSIS
use FCGI;
my $count = 0;
my $request = FCGI::Request();
while($request->Accept() >= 0) {
print("Content-type: text/html\r\n\r\n", ++$count);
}
DESCRIPTION
Functions:
FCGI::Request
Creates a request handle. It has the following optional parameters:
input perl file handle (default: \*STDIN)
output perl file handle (default: \*STDOUT)
error perl file handle (default: \*STDERR)
These filehandles will be setup to act as input/output/error
on successful Accept.
environment hash reference (default: \%ENV)
The hash will be populated with the environment.
socket (default: 0)
Socket to communicate with the server. Can be the result of
the OpenSocket function. For the moment, it's the file
descriptor of the socket that should be passed. This may
change in the future.
You should only use your own socket if your program is not
started by a process manager such as mod_fastcgi (except for
the FastCgiExternalServer case) or cgi-fcgi. If you use the
option, you have to let your FastCGI server know which port
(and possibly server) your program is listening on. See
remote.pl for an example.
flags (default: FCGI::FAIL_ACCEPT_ON_INTR)
Possible values:
FCGI::FAIL_ACCEPT_ON_INTR
If set, Accept will fail if interrupted. It not
set, it will just keep on waiting.
Example usage:
my $req = FCGI::Request;
or:
my %env;
my $in = new IO::Handle;
my $out = new IO::Handle;
my $err = new IO::Handle;
my $req = FCGI::Request($in, $out, $err, \%env);
FCGI::OpenSocket(path, backlog)
Creates a socket suitable to use as an argument to Request.
path Pathname of socket or colon followed by local tcp port.
Note that some systems take file permissions into account on
Unix domain sockets, so you'll have to make sure that the
server can write to the created file, by changing the umask
before the call and/or changing permissions and/or group of
the file afterwards.
backlog Maximum length of the queue of pending connections. If a
connection request arrives with the queue full the client
may receive an error with an indication of ECONNREFUSED.
FCGI::CloseSocket(socket)
Close a socket opened with OpenSocket.
$req->Accept()
Accepts a connection on $req, attaching the filehandles and
populating the environment hash. Returns 0 on success. If a
connection has been accepted before, the old one will be finished
first.
Note that unlike with the old interface, no die and warn handlers
are installed by default. This means that if you are not running an
sfio enabled perl, any warn or die message will not end up in the
server's log by default. It is advised you set up die and warn
handlers yourself. FCGI.pm contains an example of die and warn
handlers.
$req->Finish()
Finishes accepted connection. Also detaches filehandles.
$req->Flush()
Flushes accepted connection.
$req->Detach()
Temporarily detaches filehandles on an accepted connection.
$req->Attach()
Re-attaches filehandles on an accepted connection.
$req->LastCall()
Tells the library not to accept any more requests on this handle.
It should be safe to call this method from signal handlers.
Note that this method is still experimental and everything about it,
including its name, is subject to change.
$env = $req->GetEnvironment()
Returns the environment parameter passed to FCGI::Request.
($in, $out, $err) = $req->GetHandles()
Returns the file handle parameters passed to FCGI::Request.
$isfcgi = $req->IsFastCGI()
Returns whether or not the program was run as a FastCGI.
LIMITATIONS
FCGI.pm isn't Unicode aware, only characters within the range 0x00-0xFF
are supported. Attempts to output strings containing characters above
0xFF results in a exception: (F) "Wide character in %s".
Users who wants the previous (FCGI.pm <= 0.68) incorrect behavior can
disable the exception by using the "bytes" pragma.
{
use bytes;
print "\x{263A}";
}
AUTHOR
Sven Verdoolaege <skimo@kotnet.org>
COPYRIGHT AND LICENCE
This software is copyrighted (c) 1996 by by Open Market, Inc.
See the LICENSE file in this distribution for information on usage and
redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
perl v5.40.0 2024-10-15 FCGI(3pm)
Generated by dwww version 1.16 on Tue Dec 16 05:53:05 CET 2025.