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NN_FREEMSG(3)                   nanomsg manual                   NN_FREEMSG(3)


NAME

       nn_freemsg - deallocate a message


SYNOPSIS

       #include <nanomsg/nn.h>

       int nn_freemsg (void *msg);


DESCRIPTION

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


RETURN VALUE

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


ERRORS

       EFAULT
           The message pointer is invalid.


EXAMPLE

           void *buf;
           nn_recv (s, &buf, NN_MSG, 0);
           nn_freemsg (buf);


SEE ALSO

       nn_allocmsg(3) nn_reallocmsg(3) nn_recv(3) nn_recvmsg(3) nanomsg(7)


AUTHORS

       Martin Sustrik <sustrik@250bpm.com[1]>


NOTES

        1. sustrik@250bpm.com
           mailto:sustrik@250bpm.com

nanomsg Unknown                   12/23/2015                     NN_FREEMSG(3)

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