1 files changed, 156 insertions, 0 deletions
diff --git a/src/fs/FileInfo.hxx b/src/fs/FileInfo.hxx
new file mode 100644
index 000000000..7b272568f
--- /dev/null
+++ b/src/fs/FileInfo.hxx
@@ -0,0 +1,156 @@
+/*
+ * Copyright (C) 2003-2015 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_FS_FILE_INFO_HXX
+#define MPD_FS_FILE_INFO_HXX
+
+#include "check.h"
+#include "Path.hxx"
+#include "util/Error.hxx"
+
+#include <stdint.h>
+
+#ifdef WIN32
+#include <fileapi.h>
+#else
+#include <sys/stat.h>
+#endif
+
+#ifdef WIN32
+
+static inline constexpr uint64_t
+ConstructUint64(DWORD lo, DWORD hi)
+{
+	return uint64_t(lo) | (uint64_t(hi) << 32);
+}
+
+static constexpr time_t
+FileTimeToTimeT(FILETIME ft)
+{
+	return (ConstructUint64(ft.dwLowDateTime, ft.dwHighDateTime)
+		- 116444736000000000) / 10000000;
+}
+
+#endif
+
+class FileInfo {
+	friend bool GetFileInfo(Path path, FileInfo &info,
+				bool follow_symlinks);
+	friend bool GetFileInfo(Path path, FileInfo &info,
+				Error &error);
+	friend class FileReader;
+
+#ifdef WIN32
+	WIN32_FILE_ATTRIBUTE_DATA data;
+#else
+	struct stat st;
+#endif
+
+public:
+	bool IsRegular() const {
+#ifdef WIN32
+		return (data.dwFileAttributes &
+			(FILE_ATTRIBUTE_DIRECTORY|FILE_ATTRIBUTE_DEVICE)) == 0;
+#else
+		return S_ISREG(st.st_mode);
+#endif
+	}
+
+	bool IsDirectory() const {
+#ifdef WIN32
+		return data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY;
+#else
+		return S_ISDIR(st.st_mode);
+#endif
+	}
+
+	uint64_t GetSize() const {
+#ifdef WIN32
+		return ConstructUint64(data.nFileSizeLow, data.nFileSizeHigh);
+#else
+		return st.st_size;
+#endif
+	}
+
+	time_t GetModificationTime() const {
+#ifdef WIN32
+		return FileTimeToTimeT(data.ftLastWriteTime);
+#else
+		return st.st_mtime;
+#endif
+	}
+
+#ifndef WIN32
+	uid_t GetUid() const {
+		return st.st_uid;
+	}
+
+	mode_t GetMode() const {
+		return st.st_mode;
+	}
+
+	dev_t GetDevice() const {
+		return st.st_dev;
+	}
+
+	ino_t GetInode() const {
+		return st.st_ino;
+	}
+#endif
+};
+
+inline bool
+GetFileInfo(Path path, FileInfo &info, bool follow_symlinks=true)
+{
+#ifdef WIN32
+	(void)follow_symlinks;
+	return GetFileAttributesEx(path.c_str(), GetFileExInfoStandard,
+				   &info.data);
+#else
+	int ret = follow_symlinks
+		? stat(path.c_str(), &info.st)
+		: lstat(path.c_str(), &info.st);
+	return ret == 0;
+#endif
+}
+
+inline bool
+GetFileInfo(Path path, FileInfo &info, bool follow_symlinks, Error &error)
+{
+	bool success = GetFileInfo(path, info, follow_symlinks);
+	if (!success) {
+		const auto path_utf8 = path.ToUTF8();
+#ifdef WIN32
+		error.FormatLastError("Failed to access %s",
+				      path_utf8.c_str());
+#else
+		error.FormatErrno("Failed to access %s", path_utf8.c_str());
+#endif
+	}
+
+	return success;
+}
+
+inline bool
+GetFileInfo(Path path, FileInfo &info, Error &error)
+{
+	return GetFileInfo(path, info, true, error);
+}
+
+#endif