SeqNumStore.h

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#pragma once
 
#include <cstdint>
#include <string>
#include <mutex>
 
namespace fix_client {
 
    class SeqNumStore {
    public:
        SeqNumStore(const std::string& senderCompId, const std::string& directory = "seq_store");
 
        uint32_t getNextTargetSeqNum() const;
 
        uint32_t getNextSenderSeqNum() const;
 
        void setSeqNums(uint32_t inSeq, uint32_t outSeq);
 
        void reset();
 
    private:
        void load();
        void save() const;
 
        std::string mFilePath;
        mutable std::mutex mMutex; // Mutable to lock during const getters
        
        uint32_t mInSeqNum = 1;
        uint32_t mOutSeqNum = 1;
    };
 
} // namespace fix_client