Kernel: Switch singletons to use new Singleton class

Fixes #3226
Author: https://github.com/tomuta Commit: f48feae0b2 Pull-request: https://github.com/SerenityOS/serenity/pull/3229 Issue: https://github.com/SerenityOS/serenity/issues/3226 Reviewed-by: https://github.com/awesomekling
2025-08-09 17:49:40 +00:00 · 2020-08-20 09:36:06 -06:00 · 2020-08-20 09:36:06 -06:00 · f48feae0b2 · 2024-07-19 03:23:13 +09:00
commit f48feae0b2
parent 527c8047fe
44 changed files with 184 additions and 146 deletions
--- a/Kernel/SharedBuffer.cpp
+++ b/Kernel/SharedBuffer.cpp
@ -25,16 +25,16 @@
 */

 #include <Kernel/Process.h>
+#include <Kernel/Singleton.h>
 #include <Kernel/SharedBuffer.h>

 namespace Kernel {

+static auto s_map = make_singleton<Lockable<HashMap<int, NonnullOwnPtr<SharedBuffer>>>>();
+
 Lockable<HashMap<int, NonnullOwnPtr<SharedBuffer>>>& shared_buffers()
 {
-    static Lockable<HashMap<int, NonnullOwnPtr<SharedBuffer>>>* map;
-    if (!map)
-        map = new Lockable<HashMap<int, NonnullOwnPtr<SharedBuffer>>>;
-    return *map;
+    return *s_map;
 }

 void SharedBuffer::sanity_check(const char* what)