04-09-2011
Using socket to test a TCP port
Hello,
I'm trying to write a small c application to test a tcp port. This works fine for the most part but the default timeout on the connect is very long. I have been reading many posts but and it looks like I need to set the socket to be non-blocking and poll for a result. I have been totally unable to make this work.
Does anyone have a quick example on setting up a timeout on a socket connect?
Thanks,
tom
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LEARN ABOUT DEBIAN
shevek_socket
shevek::socket(3) Library Functions Manual shevek::socket(3)
NAME
shevek::socket -
Use a unix-domain, tcp or avahi network connection with shevek::fd.
SYNOPSIS
#include <socket.hh>
Inherits shevek::fd.
Inherited by shevek::telnet.
Public Types
typedef sigc::signal0< void > disconnect_t
Disconnect signal type.
typedef sigc::slot0< void > listen_t
New connection callback type.
Public Member Functions
void listen_unix (std::string const &file, listen_t cb, unsigned queue=10)
Listen for new connections on a UNIX socket. Use listen instead.
void listen_tcp (std::string const &service, listen_t cb, unsigned queue=10)
Listen for new connections on a TCP socket. Use listen instead.
void listen_avahi (std::string const &service, Glib::ustring const &protocol, Glib::ustring const &name, listen_t cb, unsigned queue=10)
Listen for new connections on a TCP socket, and register it with avahi. Use listen instead.
void listen (std::string const &port, listen_t cb, unsigned queue=10)
Listen for new connections.
void connect_unix (std::string const &unix_name)
Connect to a UNIX socket. Use connect instead.
void connect_tcp (std::string const &host, std::string const &service)
Connect to a TCP socket. Use connect instead.
void connect_avahi (avahi::browser::owner const &target, avahi::browser::details const &details=avahi::browser::details())
Connect to an avahi TCP socket. Use connect instead.
void connect (std::string const &port)
Connect to a socket.
void accept (Glib::RefPtr< socket > sock)
Accept a connection (only allowed on a listening socket).
std::string get_peer_info (bool numeric=false) const
Get information about the other side of a connection.
std::string get_own_info (bool numeric=false) const
Get info about our side of the connection.
disconnect_t signal_disconnect ()
Schedule a function to be called when the socket is disconnected.
void disconnect ()
Disconnect the socket without reconnecting.
Static Public Member Functions
static Glib::RefPtr< socket > create (Glib::RefPtr< Glib::MainContext > main=Glib::MainContext::get_default())
Create a new socket.
Protected Member Functions
socket (Glib::RefPtr< Glib::MainContext > main)
Constructor.
virtual ~socket ()
Destructor.
Detailed Description
Use a unix-domain, tcp or avahi network connection with shevek::fd.
Member Function Documentation
void shevek::socket::connect (std::string const &port)
Connect to a socket. This is the preferred function to use. Format: UNIX domain sockets: anything with at least one / in it. TCP:
hostname:port, where the hostname and colon may be omitted, and the port may be a service or number. Avahi: name|protocol, where name is
the application name, and protocol the connection type.
void shevek::socket::listen (std::string const &port, listen_tcb, unsignedqueue = 10)
Listen for new connections. This is the preferred function to use. Format: UNIX domain sockets: anything with at least one / in it. TCP
services: the name. TCP port numbers: the number. For TCP, appending |name|protocol, where name is the application name and protocol the
connection type.
Author
Generated automatically by Doxygen for libshevek from the source code.
libshevek Fri May 11 2012 shevek::socket(3)