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NN_FREEMSG(3) nanomsg 1.1.5 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 li- brary-allocated buffers can be more efficient for large messages as it al- lows 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> 2018-10-15 NN_FREEMSG(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLE | SEE ALSO | AUTHORS
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