internal: new shared_ptr and weak_ptr implementation (#5883)

moves std::shared_ptrs to a new implementation

Advantages:
- you can dereference a weak_ptr directly. This will obviously segfault on a nullptr deref if it's expired.
   - this is useful to avoid the .lock() hell where we are 100% sure the pointer _should_ be valid. (and if it isn't, it should throw.)
- weak_ptrs are still valid while the SP is being destroyed.
   - reasoning: while an object (e.g. CWindow) is being destroyed, its `weak_ptr self` should be accessible (the sp is still alive, and so is CWindow), but it's not because by stl it's already expired (to prevent resurrection)
   - this impl solves it differently. w_p is expired, but can still be dereferenced and used. Creating `s_p`s is not possible anymore, though.
   - this is useful in destructors and callbacks.

1 files changed, 8 insertions, 6 deletions

diff --git a/src/managers/eventLoop/EventLoopTimer.hpp b/src/managers/eventLoop/EventLoopTimer.hpp
index 8865d29f..fc0b2522 100644
--- a/src/managers/eventLoop/EventLoopTimer.hpp
+++ b/src/managers/eventLoop/EventLoopTimer.hpp
@@ -4,9 +4,11 @@
 #include <functional>
 #include <optional>
 
+#include "../../helpers/memory/SharedPtr.hpp"
+
 class CEventLoopTimer {
   public:
-    CEventLoopTimer(std::optional<std::chrono::system_clock::duration> timeout, std::function<void(std::shared_ptr<CEventLoopTimer> self, void* data)> cb_, void* data_);
+    CEventLoopTimer(std::optional<std::chrono::system_clock::duration> timeout, std::function<void(SP<CEventLoopTimer> self, void* data)> cb_, void* data_);
 
     // if not specified, disarms.
     // if specified, arms.
@@ -19,11 +21,11 @@ class CEventLoopTimer {
 
     bool  cancelled();
     // resets expires
-    void call(std::shared_ptr<CEventLoopTimer> self);
+    void call(SP<CEventLoopTimer> self);
 
   private:
-    std::function<void(std::shared_ptr<CEventLoopTimer> self, void* data)> cb;
-    void*                                                                  data = nullptr;
-    std::optional<std::chrono::system_clock::time_point>                   expires;
-    bool                                                                   wasCancelled = false;
+    std::function<void(SP<CEventLoopTimer> self, void* data)> cb;
+    void*                                                     data = nullptr;
+    std::optional<std::chrono::system_clock::time_point>      expires;
+    bool                                                      wasCancelled = false;
 };