From c8c3f208405e6ceb2d608bdb9e6d9d4377d9aee6 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Wed, 5 Feb 2014 19:24:59 +0100
Subject: storage/local: move to src/storage/plugins/
---
src/storage/plugins/LocalStorage.cxx | 146 +++++++++++++++++++++++++++++++++++
src/storage/plugins/LocalStorage.hxx | 76 ++++++++++++++++++
2 files changed, 222 insertions(+)
create mode 100644 src/storage/plugins/LocalStorage.cxx
create mode 100644 src/storage/plugins/LocalStorage.hxx
(limited to 'src/storage/plugins')
diff --git a/src/storage/plugins/LocalStorage.cxx b/src/storage/plugins/LocalStorage.cxx
new file mode 100644
index 000000000..f06e447b5
--- /dev/null
+++ b/src/storage/plugins/LocalStorage.cxx
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2003-2014 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.
+ */
+
+#include "config.h"
+#include "LocalStorage.hxx"
+#include "storage/FileInfo.hxx"
+#include "util/Error.hxx"
+#include "fs/FileSystem.hxx"
+
+static bool
+Stat(Path path, bool follow, FileInfo &info, Error &error)
+{
+ struct stat st;
+ if (!StatFile(path, st, follow)) {
+ error.SetErrno();
+
+ const auto path_utf8 = path.ToUTF8();
+ error.FormatPrefix("Failed to stat %s: ", path_utf8.c_str());
+ return false;
+ }
+
+ if (S_ISREG(st.st_mode))
+ info.type = FileInfo::Type::REGULAR;
+ else if (S_ISDIR(st.st_mode))
+ info.type = FileInfo::Type::DIRECTORY;
+ else
+ info.type = FileInfo::Type::OTHER;
+
+ info.size = st.st_size;
+ info.mtime = st.st_mtime;
+ info.device = st.st_dev;
+ info.inode = st.st_ino;
+ return true;
+}
+
+std::string
+LocalStorage::MapUTF8(const char *uri_utf8) const
+{
+ assert(uri_utf8 != nullptr);
+
+ if (*uri_utf8 == 0)
+ return base_utf8;
+
+ return PathTraitsUTF8::Build(base_utf8.c_str(), uri_utf8);
+}
+
+AllocatedPath
+LocalStorage::MapFS(const char *uri_utf8, Error &error) const
+{
+ assert(uri_utf8 != nullptr);
+
+ if (*uri_utf8 == 0)
+ return base_fs;
+
+ AllocatedPath path_fs = AllocatedPath::FromUTF8(uri_utf8, error);
+ if (!path_fs.IsNull())
+ path_fs = AllocatedPath::Build(base_fs, path_fs);
+
+ return path_fs;
+}
+
+AllocatedPath
+LocalStorage::MapFS(const char *uri_utf8) const
+{
+ return MapFS(uri_utf8, IgnoreError());
+}
+
+bool
+LocalStorage::GetInfo(const char *uri_utf8, bool follow, FileInfo &info,
+ Error &error)
+{
+ AllocatedPath path_fs = MapFS(uri_utf8, error);
+ if (path_fs.IsNull())
+ return false;
+
+ return Stat(path_fs, follow, info, error);
+}
+
+LocalDirectoryReader *
+LocalStorage::OpenDirectory(const char *uri_utf8, Error &error)
+{
+ AllocatedPath path_fs = MapFS(uri_utf8, error);
+ if (path_fs.IsNull())
+ return nullptr;
+
+ LocalDirectoryReader *reader =
+ new LocalDirectoryReader(std::move(path_fs));
+ if (reader->HasFailed()) {
+ error.FormatErrno("Failed to open '%s'", uri_utf8);
+ delete reader;
+ return nullptr;
+ }
+
+ return reader;
+}
+
+gcc_pure
+static bool
+SkipNameFS(const char *name_fs)
+{
+ return name_fs[0] == '.' &&
+ (name_fs[1] == 0 ||
+ (name_fs[1] == '.' && name_fs[2] == 0));
+}
+
+const char *
+LocalDirectoryReader::Read()
+{
+ while (reader.ReadEntry()) {
+ const Path name_fs = reader.GetEntry();
+ if (SkipNameFS(name_fs.c_str()))
+ continue;
+
+ name_utf8 = name_fs.ToUTF8();
+ if (name_utf8.empty())
+ continue;
+
+ return name_utf8.c_str();
+ }
+
+ return nullptr;
+}
+
+bool
+LocalDirectoryReader::GetInfo(bool follow, FileInfo &info, Error &error)
+{
+ const AllocatedPath path_fs =
+ AllocatedPath::Build(base_fs, reader.GetEntry());
+ return Stat(path_fs, follow, info, error);
+}
diff --git a/src/storage/plugins/LocalStorage.hxx b/src/storage/plugins/LocalStorage.hxx
new file mode 100644
index 000000000..d9c2fcb64
--- /dev/null
+++ b/src/storage/plugins/LocalStorage.hxx
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2003-2014 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_STORAGE_LOCAL_HXX
+#define MPD_STORAGE_LOCAL_HXX
+
+#include "check.h"
+#include "storage/StorageInterface.hxx"
+#include "fs/AllocatedPath.hxx"
+#include "fs/DirectoryReader.hxx"
+
+#include <string>
+
+class LocalDirectoryReader final : public StorageDirectoryReader {
+ AllocatedPath base_fs;
+
+ DirectoryReader reader;
+
+ std::string name_utf8;
+
+public:
+ LocalDirectoryReader(AllocatedPath &&_base_fs)
+ :base_fs(std::move(_base_fs)), reader(base_fs) {}
+
+ bool HasFailed() {
+ return reader.HasFailed();
+ }
+
+ /* virtual methods from class StorageDirectoryReader */
+ virtual const char *Read() override;
+ virtual bool GetInfo(bool follow, FileInfo &info,
+ Error &error) override;
+};
+
+class LocalStorage final : public Storage {
+ const std::string base_utf8;
+ const AllocatedPath base_fs;
+
+public:
+ LocalStorage(const char *_base_utf8, Path _base_fs)
+ :base_utf8(_base_utf8), base_fs(_base_fs) {}
+
+ LocalStorage(const LocalStorage &) = delete;
+
+ /* virtual methods from class Storage */
+ virtual bool GetInfo(const char *uri_utf8, bool follow, FileInfo &info,
+ Error &error) override;
+
+ virtual LocalDirectoryReader *OpenDirectory(const char *uri_utf8,
+ Error &error) override;
+
+ virtual std::string MapUTF8(const char *uri_utf8) const override;
+
+ virtual AllocatedPath MapFS(const char *uri_utf8) const override;
+
+private:
+ AllocatedPath MapFS(const char *uri_utf8, Error &error) const;
+};
+
+#endif
--
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