mmap_file.h

Go to the documentation of this file.

#ifndef META_MMAP_FILE_H_
#define META_MMAP_FILE_H_

#include <stdexcept>
#include <string>

namespace meta
{
namespace io
{

class mmap_file
{
  public:
    mmap_file(const std::string& path);

    mmap_file(mmap_file&&);

    mmap_file& operator=(mmap_file&&);

    ~mmap_file();

    char operator[](uint64_t index) const;

    uint64_t size() const;

    std::string path() const;

    char* begin() const;

  private:
    std::string path_;

    char* start_;

    uint64_t size_;

    int file_descriptor_;

    mmap_file(const mmap_file& other) = delete;

    const mmap_file& operator=(const mmap_file& other) = delete;

  public:
    class mmap_file_exception : public std::runtime_error
    {
      public:
        using std::runtime_error::runtime_error;
    };
};
}
}

#endif