ring.h

Go to the documentation of this file.

#ifndef MF_RING_H_
#define MF_RING_H_

#include "../ndarray/generic/ndarray_generic.h"
#include "frame.h"

namespace mf {


class ring : public ndarray_generic<raw_ring_allocator> {
    using base = ndarray_generic<raw_ring_allocator>;
    
public:
    using section_view_type = frame_array_view;

private:
    time_unit read_position_ = 0;
    time_unit write_position_ = 0;
    bool full_ = false;
        
    static std::size_t adjust_padding_(const frame_array_properties&); 
    section_view_type section_(time_unit start, time_unit duration);

public:
    explicit ring(const frame_array_properties&);
    
    void initialize();
    
    time_unit total_duration() const noexcept { return base::shape().front(); }
    time_unit frame_length() const noexcept { return base::shape().back(); }
    
    time_unit writable_duration() const;
    time_unit readable_duration() const;
    
    section_view_type begin_write(time_unit duration);
    void end_write(time_unit written_duration);
    
    section_view_type begin_read(time_unit duration);
    void end_read(time_unit read_duration);
        
    void skip(time_unit duration);
};


}

#endif