161 lines
4.1 KiB
C++
161 lines
4.1 KiB
C++
/*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
* Copyright 2010-2014 Danny Robson <danny@nerdcruft.net>
|
|
*/
|
|
|
|
#ifndef __UTIL_IO_HPP
|
|
#define __UTIL_IO_HPP
|
|
|
|
#include "types.hpp"
|
|
#include "memory.hpp"
|
|
#include "platform.hpp"
|
|
#include "nocopy.hpp"
|
|
|
|
#include <cstdio>
|
|
#include <cstdint>
|
|
#include <memory>
|
|
#include <boost/filesystem/path.hpp>
|
|
|
|
#ifdef PLATFORM_WIN32
|
|
#include <windows.h>
|
|
#endif
|
|
|
|
namespace util {
|
|
/// Specifies bitwise combinations of IO access rights.
|
|
enum access_t {
|
|
ACCESS_READ = 1 << 0,
|
|
ACCESS_WRITE = 1 << 1,
|
|
ACCESS_READWRITE = ACCESS_READ | ACCESS_WRITE
|
|
};
|
|
|
|
|
|
///------------------------------------------------------------------------
|
|
/// A simple RAII wrapper for file descriptors
|
|
struct fd {
|
|
public:
|
|
explicit fd (int);
|
|
explicit fd (const boost::filesystem::path&, access_t);
|
|
|
|
~fd ();
|
|
|
|
operator int (void) const { return m_fd; }
|
|
|
|
private:
|
|
int m_fd;
|
|
};
|
|
|
|
|
|
//-------------------------------------------------------------------------
|
|
#ifdef PLATFORM_WIN32
|
|
struct handle : util::nocopy {
|
|
public:
|
|
explicit handle (HANDLE);
|
|
explicit handle ();
|
|
~handle ();
|
|
|
|
void reset (HANDLE);
|
|
|
|
operator HANDLE (void) const;
|
|
|
|
HANDLE fd;
|
|
};
|
|
#endif
|
|
|
|
|
|
/// Reads an entire file into memory. Caller frees the result. Guarantees a
|
|
/// null trailing byte.
|
|
std::vector<char>
|
|
slurp [[gnu::warn_unused_result]] (const boost::filesystem::path&);
|
|
|
|
|
|
template <typename T>
|
|
void write (const fd&, const T *restrict data, size_t count);
|
|
|
|
template <typename T>
|
|
void write (const fd&, const T *restrict first, const T *restrict last);
|
|
|
|
template <typename T>
|
|
void write (const boost::filesystem::path &, const T *restrict first, const T *restrict last);
|
|
|
|
|
|
//-------------------------------------------------------------------------
|
|
class indenter : public std::streambuf {
|
|
protected:
|
|
std::streambuf* m_dest;
|
|
bool m_line_start;
|
|
std::string m_indent;
|
|
std::ostream* m_owner;
|
|
|
|
protected:
|
|
virtual int overflow (int ch) override;
|
|
|
|
public:
|
|
explicit indenter (std::streambuf* _dest, size_t _indent = 4);
|
|
explicit indenter (std::ostream& _dest, size_t _indent = 4);
|
|
|
|
virtual ~indenter ();
|
|
};
|
|
|
|
//-------------------------------------------------------------------------
|
|
template <typename T>
|
|
struct indented {
|
|
indented (const T &_data);
|
|
const T &data;
|
|
};
|
|
|
|
|
|
//-------------------------------------------------------------------------
|
|
template <typename T>
|
|
indented<T>
|
|
make_indented (const T &_data);
|
|
|
|
|
|
//-------------------------------------------------------------------------
|
|
template <typename T>
|
|
std::ostream&
|
|
operator<< (std::ostream &os, const util::indented<T> &v);
|
|
|
|
|
|
//-------------------------------------------------------------------------
|
|
class scoped_cwd {
|
|
public:
|
|
scoped_cwd ();
|
|
~scoped_cwd ();
|
|
|
|
protected:
|
|
boost::filesystem::path m_original;
|
|
};
|
|
|
|
|
|
void set_cwd (const boost::filesystem::path &);
|
|
|
|
//-------------------------------------------------------------------------
|
|
class path_error : public std::runtime_error {
|
|
public:
|
|
path_error (const boost::filesystem::path &path):
|
|
runtime_error ("Invalid path " + path.string ())
|
|
{ ; }
|
|
};
|
|
}
|
|
|
|
#ifdef PLATFORM_WIN32
|
|
#include "io_win32.hpp"
|
|
#else
|
|
#include "io_posix.hpp"
|
|
#endif
|
|
|
|
#include "io.ipp"
|
|
|
|
#endif
|