libcruft-util/posix/dir.hpp
Danny Robson 0e3fa05f05 build: migrate from ipp files to pure hpp files
ipp files weren't a great way of keeping things clean, and IDEs have a
little trouble dealing with the split configuration. this simplifies
debugging a great deal.
2018-02-28 11:49:13 +11:00

61 lines
1.5 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 2015 Danny Robson <danny@nerdcruft.net>
*/
#ifndef __UTIL_POSIX_DIR_HPP
#define __UTIL_POSIX_DIR_HPP
#include "except.hpp"
#include <cerrno>
#include <dirent.h>
#include <functional>
#include <experimental/filesystem>
namespace util::posix {
struct dir {
public:
explicit dir (const std::experimental::filesystem::path&);
~dir ();
operator DIR* (void);
// run a callback for each entry in the provided directory
template <typename FunctionT, typename ...Args>
void
scan (FunctionT &&func, Args&&...args)
{
rewind ();
for (dirent *cursor; errno = 0, cursor = readdir (m_handle); )
func (cursor->d_name, args...);
error::try_code ();
}
//entry begin (void) { rewind (); return { readdir (m_handle), m_handle }; }
//entry end (void) { return { nullptr, m_handle }; }
void rewind (void);
private:
DIR *m_handle;
};
}
#endif