diff options
Diffstat (limited to 'src/db/update/UpdateIO.cxx')
-rw-r--r-- | src/db/update/UpdateIO.cxx | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/src/db/update/UpdateIO.cxx b/src/db/update/UpdateIO.cxx new file mode 100644 index 000000000..73295cb02 --- /dev/null +++ b/src/db/update/UpdateIO.cxx @@ -0,0 +1,106 @@ +/* + * 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" /* must be first for large file support */ +#include "UpdateIO.hxx" +#include "UpdateDomain.hxx" +#include "db/Directory.hxx" +#include "storage/FileInfo.hxx" +#include "storage/StorageInterface.hxx" +#include "fs/Traits.hxx" +#include "fs/FileSystem.hxx" +#include "util/Error.hxx" +#include "Log.hxx" + +#include <errno.h> +#include <unistd.h> + +bool +GetInfo(Storage &storage, const char *uri_utf8, FileInfo &info) +{ + Error error; + bool success = storage.GetInfo(uri_utf8, true, info, error); + if (!success) + LogError(error); + return success; +} + +bool +GetInfo(StorageDirectoryReader &reader, FileInfo &info) +{ + Error error; + bool success = reader.GetInfo(true, info, error); + if (!success) + LogError(error); + return success; +} + +bool +DirectoryExists(Storage &storage, const Directory &directory) +{ + FileInfo info; + if (!storage.GetInfo(directory.GetPath(), true, info, IgnoreError())) + return false; + + return directory.device == DEVICE_INARCHIVE || + directory.device == DEVICE_CONTAINER + ? info.IsRegular() + : info.IsDirectory(); +} + +static bool +GetDirectoryChildInfo(Storage &storage, const Directory &directory, + const char *name_utf8, FileInfo &info, Error &error) +{ + const auto uri_utf8 = PathTraitsUTF8::Build(directory.GetPath(), + name_utf8); + return storage.GetInfo(uri_utf8.c_str(), true, info, error); +} + +bool +directory_child_is_regular(Storage &storage, const Directory &directory, + const char *name_utf8) +{ + FileInfo info; + return GetDirectoryChildInfo(storage, directory, name_utf8, info, + IgnoreError()) && + info.IsRegular(); +} + +bool +directory_child_access(Storage &storage, const Directory &directory, + const char *name, int mode) +{ +#ifdef WIN32 + /* CheckAccess() is useless on WIN32 */ + (void)storage; + (void)directory; + (void)name; + (void)mode; + return true; +#else + const auto path = storage.MapChildFS(directory.GetPath(), name); + if (path.IsNull()) + /* does not point to local file: silently ignore the + check */ + return true; + + return CheckAccess(path, mode) || errno != EACCES; +#endif +} |