From 9ceaf50e09365ce501e679e4420bbc0c1cd2b4de Mon Sep 17 00:00:00 2001
From: milang <milan.garnier@orange.fr>
Date: Tue, 15 Oct 2019 19:35:26 +0200
Subject: [PATCH] minor changes on dynamic line gestion

---
 liblog.c | 65 ++++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 44 insertions(+), 21 deletions(-)

diff --git a/liblog.c b/liblog.c
index c1f5deb..443bb6a 100644
--- a/liblog.c
+++ b/liblog.c
@@ -9,12 +9,14 @@
 
 #ifdef FX9860G
 
+static int number_max_messages=4096;
 #define MAX_LENGHT 22
 #define WIDTH 8
 
 #endif
 #ifdef FXCG50
 
+static int number_max_messages=10000;
 #define MAX_LENGHT 132
 #define WIDTH 17
 
@@ -24,12 +26,7 @@ typedef struct log_line log_line;
 typedef struct log_line
 {
     void* previous;
-#ifdef FXCG50
     char text[MAX_LENGHT];
-#endif
-#ifdef FX9860G
-    char text[MAX_LENGHT];
-#endif
     void* next;
     int cursor;
 } log_line;
@@ -38,20 +35,53 @@ typedef struct log_line
 static log_line first_line=
 {
     0,
-    "You are at the top !",
+    "<top>",
     0,
     0
 };
 static log_line* current_line=&first_line;
 
 /// Change the following line to custom ram weight
-static int number_max_messages=2048; // 1Ko max
+ // 1Ko max
 
 
 static int number_messages=0;
 
 static int state=1;
 
+static log_line* cut_line()
+{
+	log_line* maillon = first_line.next;
+	log_line* maillon_suivant = maillon->next;
+
+	first_line.next=maillon_suivant;
+	if (maillon_suivant)
+		maillon_suivant->previous=&first_line;
+
+	return maillon;
+}
+
+static void optimize()
+{
+	while (number_messages*sizeof(log_line)>=number_max_messages)
+	{
+		log_line* line = cut_line();
+		free(line);
+		number_messages--;
+	}
+}
+
+
+void ll_set_size(int s)
+{
+	number_messages=s;
+	optimize();
+}
+
+
+int ll_get_size();
+
+
 void ll_set_state(int s)
 {
     state = s;
@@ -62,16 +92,7 @@ int ll_get_state()
     return state;
 }
 
-static log_line* cut_line()
-{
-	log_line* maillon = first_line.next;
-	log_line* maillon_suivant = maillon->next;
 
-	first_line.next=maillon_suivant;
-	maillon_suivant->previous=&first_line;
-
-	return maillon;
-}
 
 static void link_line(log_line* line)
 {
@@ -93,21 +114,23 @@ static log_line* add_line()
     int malloc_fail=0;
 
     log_line* line;
-    
+
     int test=(number_messages*sizeof(log_line)>=number_max_messages);
     if (!test)
     {
-        number_messages++;
         line = malloc(sizeof(log_line));
         if (0==line)
             malloc_fail=1;
+        else
+        	number_messages++;
     }
-    
+
     if (test || malloc_fail) // fail du malloc ou dépassement de la limite de ram imposée lors du build
         line=cut_line();
 
     link_line(line);
     clear_line(line);
+    optimize();
     return current_line;
 
 }
@@ -143,7 +166,7 @@ static void append_character(char c)
     if (c!='\0')
     {
         current_line->cursor ++;
-    
+
 
     if (current_line->cursor == MAX_LENGHT-1)
         add_line();
@@ -226,7 +249,7 @@ void ll_pause()
                 line=linet;
         }
         if (key==KEY_EXIT)
-            break; 
+            break;
     }
 }