Function pomp_ctx_send 

pub unsafe extern "C" fn pomp_ctx_send(
    ctx: *mut pomp_ctx,
    msgid: u32,
    fmt: *const c_char,
    ...
) -> c_int

Format and send a message to a context. For server it will broadcast to all connected clients. If there is no connection, no message is sent and no error is returned. For client, if there is no connection, -ENOTCONN is returned. @param ctx : context. @param msgid : message id. @param fmt : format string. Can be NULL if no arguments given. @param … : message arguments. @return 0 in case of success, negative errno value in case of error.

@remarks the operation will be queued automatically for later processing in case the underlying socket buffer is full. Use ‘pomp_ctx_set_socket_cb’ to have more information about completion.