plucky (3) lc_channel_sendmsg.3.gz

NAME

       lc_channel_send, lc_channel_sendmsg - send data on a Librecast channel

LIBRARY

       Librecast library (liblibrecast, -llibrecast)

SYNOPSIS

       #include <librecast/net.h>

       ssize_t lc_channel_send(lc_channel_t *chan, const void *buf, size_t len, int flags)
       ssize_t lc_channel_sendmsg(lc_channel_t *chan, struct msghdr *msg, int flags);

       Compile and link with -llibrecast.

DESCRIPTION

       Each  of  these functions sends data over multicast on the librecast channel chan.  They are analogous to
       the send(2) and sendmsg(2) calls.

       In addition to the usual flags used with send(2) and sendmsg(2) these  functions  support  the  following
       flags:

       MSG_DROP
              This  flag  causes the packet to be dropped instead of sending. It is used for testing. All normal
              processing, such as encoding proceeds as usual. Only the final send syscall is skipped. The return
              value will be the number of bytes that would have been sent.

RETURN VALUE

       These  calls  return the number of bytes received, or -1 if an error occurred.  In the event of an error,
       errno is set to indicate the error.

ERRORS

       See send(2).

SEE ALSO

       lc_ctx_new(3), lc_channel_new(3), send(2), sendmsg(2)