func Send(socket *Socket, data *byte, length int) (retval int, err error) {
retval = int(C.udt_send(socket.sock, (*C.char)(unsafe.Pointer(data)), C.int(length), C.int(0)))
if retval < 0 {
return retval, udtErrDesc("Unable to send data")
}
return
}
func (fd *udtFD) Write(buf []byte) (writecnt int, err error) {
if err = fd.writeLock(); err != nil {
return 0, err
}
defer fd.writeUnlock()
writecnt = 0
for {
n := int(C.udt_send(fd.sock, slice2cbuf(buf[writecnt:]), C.int(len(buf)-writecnt), 0))
if C.int(n) == C.ERROR {
// UDT Error?
if err = fd.udtIOError(); err != nil {
break
}
// everything's fine, proceed
}
// update our running count
if n > 0 {
writecnt += n
}
if writecnt == len(buf) { // done!
break
}
if err != nil { // bad things happened
break
}
if n == 0 { // early eof?
err = io.ErrUnexpectedEOF
break
}
}
if err != nil {
err = &net.OpError{"write", fd.net, fd.laddr, fd.raddr, err}
}
return writecnt, err
}
