libcruft-util/posix/map.hpp

53 lines
1.3 KiB
C++

/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* Copyright 2016 Danny Robson <danny@nerdcruft.net>
*/
#pragma once
#include "fd.hpp"
#include <sys/mman.h>
#include <cstdint>
namespace cruft::posix {
class map {
public:
map (const map&) = delete;
map (map&&) noexcept;
map (size_t size, int prot, int flags);
map (size_t size, int prot, int flags, const fd&, off_t offset = 0);
~map ();
map& operator= (const map&) = delete;
map& operator= (map&&) noexcept;
uint8_t* begin (void);
uint8_t* end (void);
const uint8_t* begin (void) const;
const uint8_t* end (void) const;
const uint8_t* cbegin (void) const;
const uint8_t* cend (void) const;
void* data (void);
const void* data (void) const;
void sync (void *addr, size_t len, int flags);
bool empty (void) const;
size_t size (void) const;
enum class resize_t { MOVE, NOMOVE };
void resize (size_t newsize, resize_t = resize_t::NOMOVE);
private:
void *m_addr;
size_t m_size;
};
}