SYNOPSIS
#include <nng/nng.h>
#include <nng/supplemental/tcp/tcp.h>
typedef struct nng_tcp_s nng_tcp;
DESCRIPTION
An nng_tcp
represents a connected stream.
TCP stream objects can be used to send or receive data.
The nng_tcp object is used for raw TCP connections, and
should not be confused with a pipe object created using the
nng_tcp(7) transport.
|
Most NNG applications should not use this, but instead use the nng_tcp(7) transport instead. |
These objects are created either establishing an outgoing connection
with nng_tcp_dialer_dial()
or by
accepting in incoming connection with
nng_tcp_listener_accept()
.
TCP connections are byte streams, and are “reliable” in that data will not be delivered out of order, or with portions missing.
Data can be sent using nng_tcp_send()
or
received with nng_tcp_recv()
.
When the connection is no longer needed, it should be freed with
nng_tcp_free()
.
It is possible to close the connection, without freeing it, by
using nng_tcp_close() .
|
Options
The following options are applicable to TCP connections, and may be
accessed using the nng_tcp_getopt()
and
nng_tcp_setopt()
functions.
Other platform specific options may be available as well.