From 0a1779867fc4b742979d8c84a429c6b8113c4eae Mon Sep 17 00:00:00 2001
From: Guus Sliepen <guus@meshlink.io>
Date: Sat, 26 Jul 2014 00:00:12 +0200
Subject: [PATCH] Remove global variables past_request_tree and
 past_request_timeout.

---
 src/event.c             |  3 +++
 src/meshlink_internal.h |  3 +++
 src/protocol.c          | 23 +++++++++--------------
 3 files changed, 15 insertions(+), 14 deletions(-)

diff --git a/src/event.c b/src/event.c
index aa451801..d1a0e256 100644
--- a/src/event.c
+++ b/src/event.c
@@ -88,6 +88,9 @@ void io_del(event_loop_t *loop, io_t *io) {
 }
 
 void timeout_add(event_loop_t *loop, timeout_t *timeout, timeout_cb_t cb, void *data, struct timeval *tv) {
+	if(!timeout->cb)
+		timeout->tv = (struct timeval){0, 0};
+
 	timeout->cb = cb;
 	timeout->data = data;
 	timeout->node.data = timeout;
diff --git a/src/meshlink_internal.h b/src/meshlink_internal.h
index 5279a63d..7c3a7d4c 100644
--- a/src/meshlink_internal.h
+++ b/src/meshlink_internal.h
@@ -85,6 +85,9 @@ struct meshlink_handle {
 
 	struct list_t *outpacketqueue;
 
+	struct splay_tree_t *past_request_tree;
+	timeout_t past_request_timeout;
+
 	int contradicting_add_edge;
 	int contradicting_del_edge;
 	int sleeptime;
diff --git a/src/protocol.c b/src/protocol.c
index a279833b..4cf35155 100644
--- a/src/protocol.c
+++ b/src/protocol.c
@@ -49,8 +49,6 @@ static char (*request_name[]) = {
 		"ADD_EDGE", "DEL_EDGE", "KEY_CHANGED", "REQ_KEY", "ANS_KEY", "PACKET", "CONTROL",
 };
 
-static splay_tree_t *past_request_tree;
-
 bool check_id(const char *id) {
 	if(!id || !*id)
 		return false;
@@ -161,15 +159,13 @@ static void free_past_request(past_request_t *r) {
 	free(r);
 }
 
-static timeout_t past_request_timeout;
-
 static void age_past_requests(event_loop_t *loop, void *data) {
 	meshlink_handle_t *mesh = loop->data;
 	int left = 0, deleted = 0;
 
-	for splay_each(past_request_t, p, past_request_tree) {
+	for splay_each(past_request_t, p, mesh->past_request_tree) {
 		if(p->firstseen + mesh->pinginterval <= mesh->loop.now.tv_sec)
-			splay_delete_node(past_request_tree, node), deleted++;
+			splay_delete_node(mesh->past_request_tree, node), deleted++;
 		else
 			left++;
 	}
@@ -178,7 +174,7 @@ static void age_past_requests(event_loop_t *loop, void *data) {
 		logger(DEBUG_SCARY_THINGS, LOG_DEBUG, "Aging past requests: deleted %d, left %d", deleted, left);
 
 	if(left)
-		timeout_set(&mesh->loop, &past_request_timeout, &(struct timeval){10, rand() % 100000});
+		timeout_set(&mesh->loop, &mesh->past_request_timeout, &(struct timeval){10, rand() % 100000});
 }
 
 bool seen_request(meshlink_handle_t *mesh, const char *request) {
@@ -186,26 +182,25 @@ bool seen_request(meshlink_handle_t *mesh, const char *request) {
 
 	p.request = request;
 
-	if(splay_search(past_request_tree, &p)) {
+	if(splay_search(mesh->past_request_tree, &p)) {
 		logger(DEBUG_SCARY_THINGS, LOG_DEBUG, "Already seen request");
 		return true;
 	} else {
 		new = xmalloc(sizeof *new);
 		new->request = xstrdup(request);
 		new->firstseen = mesh->loop.now.tv_sec;
-		splay_insert(past_request_tree, new);
-		timeout_add(&mesh->loop, &past_request_timeout, age_past_requests, NULL, &(struct timeval){10, rand() % 100000});
+		splay_insert(mesh->past_request_tree, new);
+		timeout_add(&mesh->loop, &mesh->past_request_timeout, age_past_requests, NULL, &(struct timeval){10, rand() % 100000});
 		return false;
 	}
 }
 
-// TODO: move past_request_tree to meshlink_handle_t
 void init_requests(meshlink_handle_t *mesh) {
-	past_request_tree = splay_alloc_tree((splay_compare_t) past_request_compare, (splay_action_t) free_past_request);
+	mesh->past_request_tree = splay_alloc_tree((splay_compare_t) past_request_compare, (splay_action_t) free_past_request);
 }
 
 void exit_requests(meshlink_handle_t *mesh) {
-	splay_delete_tree(past_request_tree);
+	splay_delete_tree(mesh->past_request_tree);
 
-	timeout_del(&mesh->loop, &past_request_timeout);
+	timeout_del(&mesh->loop, &mesh->past_request_timeout);
 }
-- 
2.39.2