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.
This commit is contained in:
Vaxry 2024-05-05 17:16:00 +01:00 committed by GitHub
parent 589f758d94
commit 1ed1ce9506
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88 changed files with 899 additions and 414 deletions

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@ -1,11 +1,12 @@
#pragma once
#include <memory>
#include <chrono>
#include <any>
#include <unordered_map>
#include <string>
#include "../helpers/memory/SharedPtr.hpp"
class CUUIDToken {
public:
CUUIDToken(const std::string& uuid_, std::any data_, std::chrono::system_clock::duration expires);
@ -24,14 +25,14 @@ class CUUIDToken {
class CTokenManager {
public:
std::string registerNewToken(std::any data, std::chrono::system_clock::duration expires);
std::string getRandomUUID();
std::string registerNewToken(std::any data, std::chrono::system_clock::duration expires);
std::string getRandomUUID();
std::shared_ptr<CUUIDToken> getToken(const std::string& uuid);
void removeToken(std::shared_ptr<CUUIDToken> token);
SP<CUUIDToken> getToken(const std::string& uuid);
void removeToken(SP<CUUIDToken> token);
private:
std::unordered_map<std::string, std::shared_ptr<CUUIDToken>> m_mTokens;
std::unordered_map<std::string, SP<CUUIDToken>> m_mTokens;
};
inline std::unique_ptr<CTokenManager> g_pTokenManager;