aboutsummaryrefslogtreecommitdiffstats
path: root/src/fs/FileSystem.hxx
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--src/fs/FileSystem.hxx163
1 files changed, 163 insertions, 0 deletions
diff --git a/src/fs/FileSystem.hxx b/src/fs/FileSystem.hxx
new file mode 100644
index 000000000..2e1701c87
--- /dev/null
+++ b/src/fs/FileSystem.hxx
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2003-2013 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_FILESYSTEM_HXX
+#define MPD_FS_FILESYSTEM_HXX
+
+#include "check.h"
+#include "fd_util.h"
+
+#include "Path.hxx"
+
+#include <sys/stat.h>
+#include <unistd.h>
+#include <assert.h>
+#include <stdio.h>
+
+namespace FOpenMode {
+/**
+ * Open mode for reading text files.
+ */
+constexpr Path::const_pointer ReadText = "r";
+
+/**
+ * Open mode for reading binary files.
+ */
+constexpr Path::const_pointer ReadBinary = "rb";
+
+/**
+ * Open mode for writing text files.
+ */
+constexpr Path::const_pointer WriteText = "w";
+
+/**
+ * Open mode for writing binary files.
+ */
+constexpr Path::const_pointer WriteBinary = "wb";
+
+/**
+ * Open mode for appending text files.
+ */
+constexpr Path::const_pointer AppendText = "a";
+
+/**
+ * Open mode for appending binary files.
+ */
+constexpr Path::const_pointer AppendBinary = "ab";
+}
+
+/**
+ * Wrapper for fopen() that uses #Path names.
+ */
+static inline FILE *FOpen(const Path &file, Path::const_pointer mode)
+{
+ return fopen(file.c_str(), mode);
+}
+
+/**
+ * Wrapper for open_cloexec() that uses #Path names.
+ */
+static inline int OpenFile(const Path &file, int flags, int mode)
+{
+ return open_cloexec(file.c_str(), flags, mode);
+}
+
+/**
+ * Wrapper for rename() that uses #Path names.
+ */
+static inline bool RenameFile(const Path &oldpath, const Path &newpath)
+{
+ return rename(oldpath.c_str(), newpath.c_str()) == 0;
+}
+
+/**
+ * Wrapper for stat() that uses #Path names.
+ */
+static inline bool StatFile(const Path &file, struct stat &buf,
+ bool follow_symlinks = true)
+{
+#ifdef WIN32
+ (void)follow_symlinks;
+ return stat(file.c_str(), &buf) == 0;
+#else
+ int ret = follow_symlinks
+ ? stat(file.c_str(), &buf)
+ : lstat(file.c_str(), &buf);
+ return ret == 0;
+#endif
+}
+
+/**
+ * Wrapper for unlink() that uses #Path names.
+ */
+static inline bool RemoveFile(const Path &file)
+{
+ return unlink(file.c_str()) == 0;
+}
+
+/**
+ * Wrapper for readlink() that uses #Path names.
+ */
+Path ReadLink(const Path &path);
+
+/**
+ * Wrapper for access() that uses #Path names.
+ */
+static inline bool CheckAccess(const Path &path, int mode)
+{
+#ifdef WIN32
+ (void)path;
+ (void)mode;
+ return true;
+#else
+ return access(path.c_str(), mode) == 0;
+#endif
+}
+
+/**
+ * Checks if #Path exists and is a regular file.
+ */
+static inline bool FileExists(const Path &path,
+ bool follow_symlinks = true)
+{
+ struct stat buf;
+ return StatFile(path, buf, follow_symlinks) && S_ISREG(buf.st_mode);
+}
+
+/**
+ * Checks if #Path exists and is a directory.
+ */
+static inline bool DirectoryExists(const Path &path,
+ bool follow_symlinks = true)
+{
+ struct stat buf;
+ return StatFile(path, buf, follow_symlinks) && S_ISDIR(buf.st_mode);
+}
+
+/**
+ * Checks if #Path exists.
+ */
+static inline bool PathExists(const Path &path,
+ bool follow_symlinks = true)
+{
+ struct stat buf;
+ return StatFile(path, buf, follow_symlinks);
+}
+
+#endif