#include <nng/nng.h> typedef struct nng_socket_s nng_socket;
nng_socket - socket handle
nng_socket is a handle to an underlying socket object.
All communication between the application and remote Scalability Protocol
peers is done through sockets.
A given socket can have multiple dialers (
and/or listeners (
nng_listener), and multiple
may be connected to multiple transports at the same time.
However, a given socket will have exactly one protocol associated with it,
and is responsible for any state machines or other protocol-specific logic.
A socket may be initialized using the macro
before it is opened, to prevent confusion with valid open sockets.
nng_socket s = NNG_SOCKET_INITIALIZER;