Function pomp_msg_readv 

pub unsafe extern "C" fn pomp_msg_readv(
    msg: *const pomp_msg,
    fmt: *const c_char,
    args: *mut __va_list_tag,
) -> c_int

Read and decode a message. If the format is shorter (less arguments) than the message written, the last arguments written will be silently ignored and only the first arguments in the read format will be filled. @param msg : message. @param fmt : format string. Can be NULL if no arguments given. @param args : message arguments. @return 0 in case of success, negative errno value in case of error.