changeset 198:01294ed877f6

Directory: support of Windows complete
author David Demelier <markand@malikania.fr>
date Sat, 30 Nov 2013 09:41:21 +0100
parents 0b029b53ff55
children 08eb7b00b950
files C++/Directory.cpp C++/Directory.h
diffstat 2 files changed, 248 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/C++/Directory.cpp	Sat Nov 30 09:41:21 2013 +0100
@@ -0,0 +1,132 @@
+/*
+ * Directory.cpp -- open and read directories
+ *
+ * Copyright (c) 2013 David Demelier <markand@malikania.fr>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sstream>
+
+#include "Directory.h"
+
+#if defined(_MSC_VER)
+#  include <Windows.h>
+#endif
+
+#if defined(_MSC_VER)
+
+namespace {
+
+std::string systemError()
+{
+	LPSTR error = nullptr;
+	std::string errmsg = "Unknown error";
+
+	FormatMessageA(
+		FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
+		NULL,
+		GetLastError(),
+		MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+		(LPSTR)&error, 0, NULL);
+
+	if (error) {
+		errmsg = std::string(error);
+		LocalFree(error);
+	}
+
+	return errmsg;
+}
+
+}
+
+void Directory::systemLoad(const std::string &path, int flags)
+{
+	std::ostringstream oss;
+	HANDLE handle;
+	WIN32_FIND_DATA fdata;
+
+	oss << path << "\\*";
+	handle = FindFirstFile(oss.str().c_str(), &fdata);
+
+	if (handle == nullptr)
+		throw std::runtime_error(systemError());
+
+	do {
+		Entry entry;
+
+		entry.name = fdata.cFileName;
+		if ((flags & Directory::NotDot) && entry.name == ".")
+			continue;
+		if ((flags & Directory::NotDotDot) && entry.name == "..")
+			continue;
+
+		switch (fdata.dwFileAttributes) {
+		case FILE_ATTRIBUTE_DIRECTORY:
+			entry.type = Dir;
+			break;
+		case FILE_ATTRIBUTE_NORMAL:
+			entry.type = File;
+			break;
+		case FILE_ATTRIBUTE_REPARSE_POINT:
+			entry.type = Link;
+			break;
+		default:
+			break;
+		}
+
+		m_list.push_back(entry);
+	} while (FindNextFile(handle, &fdata) != 0);
+
+	FindClose(handle);
+}
+
+#else
+
+// UNIX STUFF
+
+#endif
+
+Directory::Entry::Entry()
+	: type(Unknown)
+{
+}
+
+Directory::Directory()
+{
+}
+
+Directory::Directory(const std::string &path, int flags)
+{
+	systemLoad(path, flags);
+}
+
+Directory::List::iterator Directory::begin()
+{
+	return m_list.begin();
+}
+
+Directory::List::const_iterator Directory::cbegin() const
+{
+	return m_list.cbegin();
+}
+
+Directory::List::iterator Directory::end()
+{
+	return m_list.end();
+}
+
+Directory::List::const_iterator Directory::cend() const
+{
+	return m_list.cend();
+}
\ No newline at end of file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/C++/Directory.h	Sat Nov 30 09:41:21 2013 +0100
@@ -0,0 +1,116 @@
+/*
+ * Directory.h -- open and read directories
+ *
+ * Copyright (c) 2013 David Demelier <markand@malikania.fr>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _DIRECTORY_H_
+#define _DIRECTORY_H_
+
+#include <cstddef>
+#include <string>
+#include <vector>
+
+/**
+ * @class Directory
+ * @brief class to manipulate directories
+ *
+ * This class allow the user to iterate directories in a for range based
+ * loop using iterators.
+ */
+class Directory {
+public:
+	/**
+	 * @enum Flags
+	 * @brief optional flags to read directories
+	 */
+	enum Flags {
+		NotDot		= (1 << 0),
+		NotDotDot	= (1 << 1)
+	};
+
+	/**
+	 * @enum Type
+	 * @brief Describe the type of an entry
+	 */
+	enum Type {
+		Unknown		= 0,
+		File,
+		Dir,
+		Link
+	};
+
+	/**
+	 * @struct Entry
+	 * @brief entry in the directory list
+	 */
+	struct Entry {
+		std::string	name;		//! name of entry (base name)
+		Type		type;		//! type of file
+
+		Entry();
+	};
+
+	using List = std::vector<Entry>;
+
+private:
+	List m_list;
+
+	void systemLoad(const std::string &path, int flags);
+
+public:
+	/**
+	 * Default constructor, does nothing.
+	 */
+	Directory();
+
+	/**
+	 * Open a directory and read all its content.
+	 * @param path the path
+	 * @param flags the optional flags
+	 */
+	Directory(const std::string &path, int flags = 0);
+
+	/**
+	 * Return an iterator the beginning.
+	 *
+	 * @return the iterator
+	 */
+	List::iterator begin();
+
+	/**
+	 * Return a const iterator the beginning.
+	 *
+	 * @return the iterator
+	 */
+	List::const_iterator cbegin() const;
+
+	/**
+	 * Return an iterator to past the end.
+	 *
+	 * @return the iterator
+	 */
+	List::iterator end();
+
+	/**
+	 * Return a const iterator to past the end.
+	 *
+	 * @return the iterator
+	 */
+	List::const_iterator cend() const;
+};
+
+#endif // !_DIRECTORY_H_
+