github.com/geniusesgroup/libgo@v0.0.0-20220713101832-828057a9d3d4/tcp/socket-send.go (about) 1 /* For license and copyright information please see LEGAL file in repository */ 2 3 package tcp 4 5 // Send Sequence Space 6 // 7 // 1 2 3 4 8 // ----------|----------|----------|---------- 9 // SND.UNA SND.NXT SND.UNA 10 // +SND.WND 11 // 12 // 1 - old sequence numbers which have been acknowledged 13 // 2 - sequence numbers of unacknowledged data 14 // 3 - sequence numbers allowed for new data transmission 15 // 4 - future sequence numbers which are not yet allowed 16 type sendSequenceSpace struct { 17 una uint32 // send unacknowledged 18 next uint32 19 wnd uint16 // send window 20 up bool // send urgent pointer 21 wl1 uint32 // segment sequence number used for last window update 22 wl2 uint32 // segment acknowledgment number used for last window update 23 iss uint32 // initial send sequence number 24 // buf []byte Don't need it, because we don't need to copy buffer between kernel and userpspace 25 } 26 27 func (s *sendSequenceSpace) init() { 28 // TODO::: 29 }