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Markup changes in net branch + updates in TCP_output

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git-svn-id: svn://kolibrios.org@2362 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
hidnplayr
2012-02-21 08:44:51 +00:00
parent 8fd9581723
commit f156bb294d
5 changed files with 1652 additions and 1598 deletions
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56
kernel/branches/net/network/tcp_output.inc
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@@ -1,6 +1,6 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;;
;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; Part of the tcp/ip network stack for KolibriOS ;;
@@ -75,7 +75,7 @@ TCP_output:
test ecx, ecx
jnz .no_zero_window
cmp ebx, [eax + STREAM_SOCKET.snd + RING_BUFFER.size]
cmp ebx, [eax + STREAM_SOCKET.snd.size]
jae @f
and dl, not (TH_FIN) ; clear the FIN flag ??? how can it be set before?
@@ -93,7 +93,7 @@ TCP_output:
;--------------------------------
; Calculate how much data to send (106)
mov esi, [eax + STREAM_SOCKET.snd + RING_BUFFER.size]
mov esi, [eax + STREAM_SOCKET.snd.size]
cmp esi, ecx
jb @f
mov esi, ecx
@@ -146,7 +146,7 @@ TCP_output:
mov edi, [eax + TCP_SOCKET.SND_NXT]
add edi, esi
sub edi, [eax + TCP_SOCKET.SND_UNA]
sub edi, [eax + STREAM_SOCKET.snd + RING_BUFFER.size]
sub edi, [eax + STREAM_SOCKET.snd.size]
jns @f
and dl, not (TH_FIN)
@@ -157,7 +157,7 @@ TCP_output:
; calculate window advertisement (130)
mov ecx, SOCKET_MAXDATA
sub ecx, [eax + STREAM_SOCKET.rcv + RING_BUFFER.size]
sub ecx, [eax + STREAM_SOCKET.rcv.size]
;------------------------------
; Sender silly window avoidance (131)
@@ -168,7 +168,13 @@ TCP_output:
cmp esi, [eax + TCP_SOCKET.t_maxseg]
je .send
;;; if (idle or TF_NODELAY) && (esi + ebx >= so_snd.sb_cc), send
test [eax + TCP_SOCKET.t_flags], TF_NODELAY
jnz @f
; TODO: if not 'idle', skip to next codeblock
@@:
add ebx, esi
cmp ebx, [eax + STREAM_SOCKET.snd.size]
jae .send
test [eax + TCP_SOCKET.t_force], -1 ;;;
jnz .send
@@ -190,7 +196,23 @@ TCP_output:
test ecx, ecx
jz .no_window
;;; TODO 167-172
push ecx
mov cl, [eax + TCP_SOCKET.RCV_SCALE]
inc cl ; we want it *2
mov ebx, TCP_max_win
shl ebx, cl
pop ecx
cmp ebx, ecx
cmovb ebx, ecx
; now ebx is TWICE the amount we can increase the window
; (with TCP_max_win shl rcv_scale as the maximum)
cmp ebx, [eax + TCP_SOCKET.t_maxseg]
jae .send
;;; cmp ebx, [eax + ] ;;; TODO: check receive buffer high water mark
;;; jae .send
.no_window:
@@ -224,10 +246,18 @@ TCP_output:
.enter_persist:
cmp [eax + STREAM_SOCKET.snd.size], 0 ; Data ready to send?
jne @f
cmp [eax + TCP_SOCKET.timer_retransmission], 0
jne @f
cmp [eax + TCP_SOCKET.timer_persist], 0 ; Persist timer already expired?
jne @f
DEBUGF 1,"Entering persist state\n"
;;; 213 - 217
mov [eax + TCP_SOCKET.t_rxtshift], 0
TCP_set_persist eax
@@:
;----------------------------
; No reason to send a segment (219)
@@ -260,7 +290,7 @@ TCP_output:
DEBUGF 1,"Preparing to send a segment\n"
mov edi, sizeof.TCP_header ; edi will contain headersize
mov edi, sizeof.TCP_header ; edi will contain headersize
sub esp, 8 ; create some space on stack
push eax ; save socket pointer
@@ -463,9 +493,11 @@ TCP_output:
mov edx, [eax + TCP_SOCKET.t_rxtcur]
mov [eax + TCP_SOCKET.timer_retransmission], dx
cmp [eax + TCP_SOCKET.timer_persist], 0
jne @f
mov [eax + TCP_SOCKET.timer_persist], 0
mov [eax + TCP_SOCKET.t_rxtshift], 0 ;;; TODO: only do this if timer_persist was set
mov [eax + TCP_SOCKET.t_rxtshift], 0
@@:
.retransmit_set: