From 8d052ecf24849a13f3d8bc6c723ebc7005785825 Mon Sep 17 00:00:00 2001
From: likewise <likewise>
Date: Mon, 12 Jul 2004 20:42:16 +0000
Subject: [PATCH] Source documentation added.

---
 doc/contrib.txt |  2 +-
 src/api/tcpip.c | 10 ++++++++--
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/doc/contrib.txt b/doc/contrib.txt
index 00fffa65..8620e751 100644
--- a/doc/contrib.txt
+++ b/doc/contrib.txt
@@ -6,7 +6,7 @@ in lwIP development.
 2 How to contribute to lwIP
 
 Here is a short list of suggestions to anybody working with lwIP and 
-trying to contribute bugreports, fixes, enhancements, platform ports etc.
+trying to contribute bug reports, fixes, enhancements, platform ports etc.
 First of all as you may already know lwIP is a volunteer project so feedback
 to fixes or questions might often come late. Hopefully the bug and patch tracking 
 features of Savannah help us not lose users' input.
diff --git a/src/api/tcpip.c b/src/api/tcpip.c
index bdd35932..622d8b5d 100644
--- a/src/api/tcpip.c
+++ b/src/api/tcpip.c
@@ -56,19 +56,25 @@ tcpip_tcp_timer(void *arg)
 {
   (void)arg;
 
+  /* call TCP timer handler */
   tcp_tmr();
+  /* timer still needed? */
   if (tcp_active_pcbs || tcp_tw_pcbs) {
+    /* restart timer */
     sys_timeout(TCP_TMR_INTERVAL, tcpip_tcp_timer, NULL);
   } else {
-  tcpip_tcp_timer_active = 0;
+    /* disable timer */
+    tcpip_tcp_timer_active = 0;
   }
 }
 
 void
 tcp_timer_needed(void)
 {
+  /* timer is off but needed again? */
   if (!tcpip_tcp_timer_active && (tcp_active_pcbs || tcp_tw_pcbs)) {
-  tcpip_tcp_timer_active = 1;
+    /* enable and start timer */
+    tcpip_tcp_timer_active = 1;
     sys_timeout(TCP_TMR_INTERVAL, tcpip_tcp_timer, NULL);
   }
 }