nn_bind(3)

1NN_BIND(3)                       nanomsg 1.1.5                      NN_BIND(3)
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NAME

6       nn_bind - add a local endpoint to the socket
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SYNOPSIS

9       #include <nanomsg/nn.h>
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11       int nn_bind (int s, const char *addr);
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DESCRIPTION

14       Adds a local endpoint to the socket s. The endpoint can be then used by
15       other applications to connect to.
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17       The addr argument consists of two parts as follows:
18       transport://address. The transport specifies the underlying transport
19       protocol to use. The meaning of the address part is specific to the
20       underlying transport protocol.
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22       For the list of available transport protocols check the list on
23       nanomsg(7) manual page.
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25       Maximum length of the addr parameter is specified by NN_SOCKADDR_MAX
26       defined in <nanomsg/nn.h> header file.
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28       Note that nn_bind and nn_connect(3) may be called multiple times on the
29       same socket thus allowing the socket to communicate with multiple
30       heterogeneous endpoints.
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NOTE

33       Unlike with traditional BSD sockets, this function operates
34       asynchronously, and returns to the caller before the operation is
35       complete. As a result, attempts to send data or receive data on the
36       socket may not succeed until the underlying transport actually
37       establishes a connection.
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RETURN VALUE

40       If the function succeeds positive endpoint ID is returned. Endpoint ID
41       can be later used to remove the endpoint from the socket via
42       nn_shutdown(3) function.
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44       If the function fails, then -1 is returned and errno is set to to one
45       of the values defined below.
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ERRORS

48       EBADF
49           The provided socket is invalid.
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51       EMFILE
52           Maximum number of active endpoints was reached.
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54       EINVAL
55           The syntax of the supplied address is invalid.
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57       ENAMETOOLONG
58           The supplied address is too long.
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60       EPROTONOSUPPORT
61           The requested transport protocol is not supported.
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63       EADDRNOTAVAIL
64           The requested endpoint is not local.
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66       ENODEV
67           Address specifies a nonexistent interface.
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69       EADDRINUSE
70           The requested local endpoint is already in use.
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72       ETERM
73           The library is terminating.
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EXAMPLE

76           s = nn_socket (AF_SP, NN_PUB);
77           eid1 = nn_bind (s, "inproc://test");
78           eid2 = nn_bind (s, "tcp://127.0.0.1:5560");
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AUTHORS

85       Martin Sustrik <sustrik@250bpm.com> Garrett D’Amore
86       <garrett@damore.org>
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90                                  2021-07-22                        NN_BIND(3)