int nn_shutdown (int s, int how);
Removes an endpoint from socket s. how parameter specifies the ID of the endpoint to remove as returned by prior call to nn_bind(3) or nn_connect(3). nn_shutdown() call will return immediately, however, the library will try to deliver any outstanding outbound messages to the endpoint for the time specified by NN_LINGER socket option.
If the function succeeds zero is returned. Otherwise, -1 is returned and errno is set to to one of the values defined below.
The provided socket is invalid.
The how parameter doesn’t correspond to an active endpoint.
Operation was interrupted by a signal. The endpoint is not fully closed yet. Operation can be re-started by calling nn_shutdown() again.
The library is terminating.
s = nn_socket (AF_SP, NN_PUB); eid = nn_bind (s, "inproc://test"); nn_shutdown (s, eid);