progress.h

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#ifndef META_UTIL_PROGRESS_H_
#define META_UTIL_PROGRESS_H_

#include <chrono>
#include <string>

namespace meta
{
namespace printing
{

class progress
{
  public:
    progress(const std::string& prefix, uint64_t length,
             int interval = 500, uint64_t min_iters = 10);

    void print_endline(bool endline);

    ~progress();

    void operator()(uint64_t iter);

    void end();

    void clear() const;

  private:
    std::string prefix_;
    std::chrono::steady_clock::time_point start_;
    std::chrono::steady_clock::time_point last_update_;
    uint64_t last_iter_;
    uint64_t length_;
    int interval_;
    uint64_t min_iters_;
    uint64_t str_len_;
    bool finished_;
    bool endline_;
};
}
}
#endif