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);AUTHORS
Martin Sustrik <sustrik@250bpm.com>