From ff978b1ce3486088c19c31b63a4f7fc55cdf48ae Mon Sep 17 00:00:00 2001
From: Z8Griz <154282263+Z8Griz@users.noreply.github.com>
Date: Mon, 26 Aug 2024 18:34:11 -0600
Subject: [PATCH] RECEIVE WINDOW is different than RECEIVE BUFFER

The receive buffer is allocated per socket.
TCP receive buffer holds TCP data that has not yet been processed
(consumed via read/recv system calls) by the application.
---
 src/Home/Net/Protocols/TCP/TCP.HH | 2 ++
 src/Home/Net/Protocols/TCP/TCP.ZC | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/Home/Net/Protocols/TCP/TCP.HH b/src/Home/Net/Protocols/TCP/TCP.HH
index e24c7f36..f76ae553 100755
--- a/src/Home/Net/Protocols/TCP/TCP.HH
+++ b/src/Home/Net/Protocols/TCP/TCP.HH
@@ -11,6 +11,8 @@
 U16 RECEIVE_WINDOW; // gets host window size. It is not static.
 U16 SEND_WINDOW; // gets receive window size from host, then adjust accordingly. 
 
+U32 RECEIVE_BUFFER; // is 32 too much? receive_buffer holds TCP data that has not yet been processed
+
 #define TCP_MSS			536 // Max Segment Size default
 
 #define TCP_TIMEOUT		5000
diff --git a/src/Home/Net/Protocols/TCP/TCP.ZC b/src/Home/Net/Protocols/TCP/TCP.ZC
index 77bc836b..22e4edcc 100755
--- a/src/Home/Net/Protocols/TCP/TCP.ZC
+++ b/src/Home/Net/Protocols/TCP/TCP.ZC
@@ -647,8 +647,8 @@ CTCPSocket TCPSocket(U16 domain=AF_UNSPEC)
 	QueueInit(accept_queue); // init pending connection queue
 	tcp_socket->accept_queue = accept_queue;
 
-	tcp_socket->receive_buffer_size = RECEIVE_WINDOW;
-	tcp_socket->receive_buffer = CAlloc(RECEIVE_WINDOW);
+	tcp_socket->receive_buffer_size = RECEIVE_BUFFER;
+	tcp_socket->receive_buffer = CAlloc(RECEIVE_BUFFER);
 
 	tcp_socket->max_segment_size = TCP_MSS;