id_tracker.h

Go to the documentation of this file.

#pragma once
 
#include "fl/hash_map.h"
#include "fl/mutex.h"
#include "fl/namespace.h"
 
namespace fl {

class IdTracker {
public:
    IdTracker() = default;

    int getOrCreateId(void* ptr);

    bool getId(void* ptr, int* outId);

    bool removeId(void* ptr);

    size_t size();

    void clear();
 
    // Non-copyable and non-movable for thread safety
    // (Each instance should have its own independent state)
    IdTracker(const IdTracker&) = delete;
    IdTracker& operator=(const IdTracker&) = delete;
    IdTracker(IdTracker&&) = delete;
    IdTracker& operator=(IdTracker&&) = delete;
 
private:
 
    // Thread synchronization
    mutable fl::mutex mMutex;
    
    // ID mapping and counter
    fl::hash_map<void*, int> mPointerToId;
    int mNextId = 0;  // Start IDs at 0 to match StripIdMap behavior
};
 
} // namespace fl