nn_freemsg(3)

1NN_FREEMSG(3)                    nanomsg 1.1.5                   NN_FREEMSG(3)
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NAME

6       nn_freemsg - deallocate a message
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SYNOPSIS

9       #include <nanomsg/nn.h>
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11       int nn_freemsg (void *msg);
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DESCRIPTION

14       Deallocates a message allocated using nn_allocmsg(3) function or
15       received via nn_recv(3) or nn_recvmsg(3) function. While nn_recv(3) and
16       nn_recvmsg(3) allow to receive data into arbitrary buffers, using
17       library-allocated buffers can be more efficient for large messages as
18       it allows for using zero-copy techniques.
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RETURN VALUE

21       If the function succeeds zero is returned. Otherwise, -1 is returned
22       and errno is set to to one of the values defined below.
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ERRORS

25       EFAULT
26           The message pointer is invalid.
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EXAMPLE

29           void *buf;
30           nn_recv (s, &buf, NN_MSG, 0);
31           nn_freemsg (buf);
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AUTHORS

37       Martin Sustrik <sustrik@250bpm.com>
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41                                  2021-07-22                     NN_FREEMSG(3)