Set up a network server using shevek::telnet.
#include <server.hh>
Inherits shevek::refbase.
struct connection
Base of the client class which is implemented by the calling program.
typedef std::list
< Glib::RefPtr< client >
>::iterator iterator"
Iterator for looping over all current connections. typedef std::list
< Glib::RefPtr< client >
>::const_iterator const_iterator"
Iterator for looping over all current connections.
void open (std::string const &port, bool use_stdio=true)
Open a port and start running. serverdata & data ()
Get the corresponding serverdata structure. serverdata const & data () const
Get the corresponding serverdata structure. iterator begin ()
Loop over all current connections. iterator end ()
Loop over all current connections. const_iterator begin () const
Loop over all current connections. const_iterator end () const
Loop over all current connections. void shutdown ()
Stop running this server, closing all current connections. ~server ()
The destructor shuts down the server.
static Glib::RefPtr< server > create ()
Create a new server object.
Set up a network server using shevek::telnet.
New connections are accepted, and callbacks to the program are made when a line of data is received.
An example file showing how to use the server:
#include <shevek/server.hh>
#include <shevek/mainloop.hh>
// per-server data structure
struct serverdata
{
// Put in here whatever you like, possibly nothing. There is one
// instantiation of this class per server.
// In most cases, global variables can be used instead of this class, but
// this way allows programs to run more than one server of the same kind,
// each with its own settings. That is a Good Thing.
// It is available from server.data (), and therefore from
// client->get_server ()->data ()
};
// Each object of this class is a connection. Add any members that are
// needed on a per-connection basis in this class. Below is a very minimal
// example, which implements an echo server (everything you write to it is
// echoed back).
class client : public shevek::server <client, serverdata>::connection<BR> {
// Allow the server to call pickup and read.
friend class shevek::server <client, serverdata>;
void pickup (bool is_stdio)
{
out->write ('Welcome to the echo server.\\n');
}
void read (std::string const &line)
{
// An echo server should echo.
out->write (line + '\n');
}
static Glib::RefPtr <client> create ()
{ return Glib::RefPtr <client> (new client () ); }
// Make sure it cannot be constructed other than with create.
// Don't use the constructor for initialising, use pickup () instead.
// The connection is not initialised when the constructor is called.
client () {}
};
int main ()
{
Glib::RefPtr <shevek::server <client, serverdata> >
s = shevek::server <client, serverdata>::create ();
// '1234' is the port to listen on. It may be a name from
// /etc/services, such as 'telnet' (although you need to be root to claim
// that one). It can also be a filename, which will be created as a unix
// domain socket. Debugging is a little harder then, as netcat cannot
// connect to such sockets.
s->open ('1234');
shevek::loop ();
return 0;
}
Open a port and start running. If use_stdio is true, there will be an initial connection from standard input/standard output.
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