CommitDetailGetter.h

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#ifndef COMMITDETAILGETTER_H
#define COMMITDETAILGETTER_H
 
#include "Git.h"
#include <QObject>
#include <condition_variable>
#include <memory>
#include <mutex>
#include <thread>
#include <map>
 
class CommitDetailGetter : public QObject {
    Q_OBJECT
public:
    struct Data {
        char sign_verify = 0;
    };
private:
    static constexpr int num_threads = 1;
 
    std::mutex mutex_;
    std::condition_variable condition_;
    std::vector<std::thread> threads_;
    bool interrupted_ = false;
 
    GitRunner git_;
 
    struct Request {
        bool done = false;
        bool busy = false;
        Git::Hash id;
        Data data;
 
        operator bool () const
        {
            return done;
        }
    };
    std::vector<Request> requests_;
    std::map<Git::Hash, Data> cache_;
public:
    CommitDetailGetter() = default;
    virtual ~CommitDetailGetter();
    void start(GitRunner git);
    void stop();
private:
    Data _query(const Git::Hash &id, bool request_if_not_found, bool lock);
public:
    Data query(const Git::Hash &id, bool request_if_not_found);
signals:
    void ready();
};
 
#endif // COMMITDETAILGETTER_H