libcruft-util/io_win32.hpp
Danny Robson b60aaccf6f build; fix compilation errors under win32
win32 builds are still totally unsupported, untested, and functionally
broken.
2018-08-13 14:52:40 +10:00

118 lines
3.3 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 2014-2018 Danny Robson <danny@nerdcruft.net>
*/
#pragma once
#include "std.hpp"
#include "pointer.hpp"
#include "io.hpp"
#include "win32/handle.hpp"
#include "view.hpp"
#include <cstdint>
#include <experimental/filesystem>
#include <windows.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
///////////////////////////////////////////////////////////////////////////////
// compatibility definitions
enum : int {
PROT_NONE = 0,
PROT_READ = 1 << 0,
PROT_EXEC = 1 << 1,
PROT_WRITE = 1 << 2
};
//-----------------------------------------------------------------------------
enum : int {
MAP_SHARED,
MAP_PRIVATE,
MAP_ANONYMOUS
};
///////////////////////////////////////////////////////////////////////////////
// implementation definitions
namespace cruft {
namespace detail::win32 {
class mapped_file {
public:
using value_type = u08;
using reference = value_type&;
using const_reference = const value_type&;
using iterator = value_type*;
using const_iterator = const value_type*;
using difference_type = std::iterator_traits<iterator>::difference_type;
using size_type = std::size_t;
mapped_file (::cruft::win32::handle &&,
int fflags = O_RDONLY,
int mflags = PROT_READ);
mapped_file (const std::experimental::filesystem::path &path,
int fflags = O_RDONLY,
int mflags = PROT_READ);
mapped_file (const cruft::posix::fd&,
int fflag = O_RDONLY,
int mflags = PROT_READ);
mapped_file (const mapped_file&) = delete;
mapped_file& operator= (const mapped_file&) = delete;
size_t size (void) const;
bool empty (void) const;
const uint8_t* data (void) const &;
uint8_t* data (void) &;
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 &;
template <typename T>
cruft::view<std::add_const_t<T>*>
as_view () const &
{
return {
reinterpret_cast<const T*> (cbegin ()),
reinterpret_cast<const T*> (align (cend (), alignof (T)))
};
}
template <typename T>
cruft::view<T*>
as_view () &
{
return {
reinterpret_cast<T *> (begin ()),
reinterpret_cast<T *> (align (end (), alignof(T)))
};
}
private:
::cruft::win32::handle m_file;
::cruft::win32::handle m_mapping;
std::unique_ptr<uint8_t,BOOL(*)(LPCVOID)> m_data;
uint64_t m_size;
};
}
typedef detail::win32::mapped_file mapped_file;
}