From 793e22ecb7a8bf092ae0c2b46bfed9e039251ad8 Mon Sep 17 00:00:00 2001
From: Julian Rother <julian@jrother.eu>
Date: Sun, 13 Mar 2022 20:28:19 +0100
Subject: mthread: reduce memory usage

mthread keeps header data of all messages in memory until it exits without
ever using it. With this change it frees the header data of each message
right after processing it.

Closes: #222 [via git-merge-pr]
---
 mthread.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/mthread.c b/mthread.c
index 9d718fc..d200879 100644
--- a/mthread.c
+++ b/mthread.c
@@ -29,7 +29,6 @@ static int optional;
 struct container {
 	char *mid;
 	char *file;
-	struct message *msg;
 	time_t date;
 	struct container *parent;
 	struct container *child;
@@ -87,7 +86,6 @@ midcont(char *mid)
 			exit(111);
 		c->mid = mid;
 		c->file = 0;
-		c->msg = 0;
 		c->date = -1;
 		c->optional = 0;
 		c->parent = c->child = c->next = 0;
@@ -104,7 +102,6 @@ store_id(char *file, struct message *msg)
 
 	c = midcont(mid(msg));
 	c->file = strdup(file);
-	c->msg = msg;
 	c->optional = optional;
 
 	return c;
@@ -239,6 +236,8 @@ out2:
 			c->child = 0;
 		}
 	}
+
+	blaze822_free(msg);
 }
 
 time_t
@@ -290,7 +289,6 @@ find_roots()
 	top = malloc(sizeof (struct container));
 	if (!top)
 		exit(111);
-	top->msg = 0;
 	top->date = -1;
 	top->file = 0;
 	top->next = top->child = top->parent = 0;
@@ -315,7 +313,6 @@ prune_tree(struct container *c, int depth)
 			// turn into child if we don't exist and only have a child
 			c->mid = c->child->mid;
 			c->file = c->child->file;
-			c->msg = c->child->msg;
 			if (c->child->date > c->date)
 				c->date = c->child->date;
 			c->optional = c->child->optional;
-- 
cgit 1.4.1