From 7d05730ac755de804b40e6c6d33ff4ae5d229a7a Mon Sep 17 00:00:00 2001
From: Witold Filipczyk <witekfl@poczta.onet.pl>
Date: Thu, 10 Oct 2024 15:32:51 +0200
Subject: [PATCH] [spidermonkey] option change hook to not read option too
 often

---
 src/js/spidermonkey-shared.cpp |  6 ++++--
 src/js/spidermonkey-shared.h   |  1 +
 src/js/spidermonkey.cpp        | 15 +++++++++++++++
 3 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/src/js/spidermonkey-shared.cpp b/src/js/spidermonkey-shared.cpp
index 96aec94a4..8ca6cfecd 100644
--- a/src/js/spidermonkey-shared.cpp
+++ b/src/js/spidermonkey-shared.cpp
@@ -7,7 +7,6 @@
 
 #include "elinks.h"
 
-#include "config/options.h"
 #include "js/spidermonkey-shared.h"
 #include <js/Initialization.h>
 
@@ -28,6 +27,9 @@ static int spidermonkey_runtime_refcount;
  *
  * @return 1 if successful or 0 on error.  If this succeeds, the
  * caller must eventually call spidermonkey_runtime_release().  */
+
+long spidermonkey_memory_limit;
+
 int
 spidermonkey_runtime_addref(void)
 {
@@ -37,7 +39,7 @@ spidermonkey_runtime_addref(void)
 			return 0;
 		}
 
-		main_ctx = JS_NewContext(get_opt_long("ecmascript.spidermonkey.memory_limit", NULL));
+		main_ctx = JS_NewContext(spidermonkey_memory_limit);
 
 		if (!main_ctx) {
 			JS_ShutDown();
diff --git a/src/js/spidermonkey-shared.h b/src/js/spidermonkey-shared.h
index ccb812d7e..23ad09691 100644
--- a/src/js/spidermonkey-shared.h
+++ b/src/js/spidermonkey-shared.h
@@ -9,6 +9,7 @@
 
 extern JSRuntime *spidermonkey_runtime;
 extern JSContext *main_ctx;
+extern long spidermonkey_memory_limit;
 int spidermonkey_runtime_addref(void);
 void spidermonkey_runtime_release(void);
 
diff --git a/src/js/spidermonkey.cpp b/src/js/spidermonkey.cpp
index bd67cae70..81e26c165 100644
--- a/src/js/spidermonkey.cpp
+++ b/src/js/spidermonkey.cpp
@@ -134,9 +134,24 @@ reported:
 	JS_ClearPendingException(ctx);
 }
 
+static int
+change_hook_spidermonkey(struct session *ses, struct option *current, struct option *changed)
+{
+	spidermonkey_memory_limit = get_opt_long("ecmascript.spidermonkey.memory_limit", ses);
+
+	return 0;
+}
+
 static void
 spidermonkey_init(struct module *module)
 {
+	static const struct change_hook_info spidermonkey_change_hooks[] = {
+		{ "ecmascript.spidermonkey.memory_limit", change_hook_spidermonkey },
+		{ NULL,	NULL },
+	};
+	register_change_hooks(spidermonkey_change_hooks);
+	spidermonkey_memory_limit = get_opt_long("ecmascript.spidermonkey.memory_limit", NULL);
+
 	js_module_init_ok = spidermonkey_runtime_addref();
 }