1NN_TERM(3)                       nanomsg 1.1.5                      NN_TERM(3)
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NAME

6       nn_term - notify all sockets about process termination
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SYNOPSIS

9       #include <nanomsg/nn.h>
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11       void nn_term (void);
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DESCRIPTION

14       To help with shutdown of multi-threaded programs nanomsg provides the
15       nn_term() function which closes all open sockets, and releases all
16       related resources.
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18       If a socket is blocked inside a blocking function, such as nn_recv(3),
19       it will be unblocked  and EBADF error will be returned to the user.
20       Subsequent calls on such sockets will also return EBADF.
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22       Attempting to open a new socket with nn_socket(3) will result in an
23       ETERM error.
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25       If waiting for NN_SNDFD or NN_RCVFD using a polling function, such as
26       poll() or select(), the call will unblock with both NN_SNDFD and
27       NN_RCVFD signaled.
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EXAMPLE

30           s = nn_socket (AF_SP, NN_PAIR);
31           nn_term ();
32           rc = nn_send (s, "ABC", 3, 0);
33           assert (rc == -1 && errno == EBADF);
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SEE ALSO

36       nn_close(3) nn_send(3) nn_socket(3) nn_recv(3) nanomsg(7)
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AUTHORS

39       Martin Sustrik <sustrik@250bpm.com> Garrett D’Amore
40       <garrett@damore.org>
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44                                  2021-01-26                        NN_TERM(3)