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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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.
*
*/
#if defined(__WII__)
#include "backends/fs/abstract-fs.h"
#include "backends/fs/stdiostream.h"
#include <sys/iosupport.h>
#include <sys/dir.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <unistd.h>
#include <gctypes.h>
/**
* Implementation of the ScummVM file system API based on Wii.
*
* Parts of this class are documented in the base interface class, AbstractFSNode.
*/
class WiiFilesystemNode : public AbstractFSNode {
protected:
Common::String _displayName;
Common::String _path;
bool _exists, _isDirectory, _isReadable, _isWritable;
virtual void initRootNode();
virtual bool getDevopChildren(AbstractFSList &list, ListMode mode, bool hidden) const;
virtual void setFlags(const struct stat *st);
virtual void clearFlags();
public:
/**
* Creates a WiiFilesystemNode with the root node as path.
*/
WiiFilesystemNode();
/**
* Creates a WiiFilesystemNode for a given path.
*
* @param path Common::String with the path the new node should point to.
*/
WiiFilesystemNode(const Common::String &path);
WiiFilesystemNode(const Common::String &p, const struct stat *st);
virtual bool exists() const;
virtual Common::String getDisplayName() const { return _displayName; }
virtual Common::String getName() const { return _displayName; }
virtual Common::String getPath() const { return _path; }
virtual bool isDirectory() const { return _isDirectory; }
virtual bool isReadable() const { return _isReadable; }
virtual bool isWritable() const { return _isWritable; }
virtual AbstractFSNode *getChild(const Common::String &n) const;
virtual bool getChildren(AbstractFSList &list, ListMode mode, bool hidden) const;
virtual AbstractFSNode *getParent() const;
virtual Common::SeekableReadStream *createReadStream();
virtual Common::WriteStream *createWriteStream();
};
// gets all registered devoptab devices
bool WiiFilesystemNode::getDevopChildren(AbstractFSList &list, ListMode mode, bool hidden) const {
u8 i;
const devoptab_t* dt;
if (mode == Common::FSNode::kListFilesOnly)
return true;
// skip in, out and err
for (i = 3; i < STD_MAX; ++i) {
dt = devoptab_list[i];
if (!dt || !dt->name || !dt->open_r || !dt->diropen_r)
continue;
list.push_back(new WiiFilesystemNode(Common::String(dt->name) + ":/"));
}
return true;
}
void WiiFilesystemNode::initRootNode() {
_path.clear();
_displayName = "<devices>";
_exists = true;
_isDirectory = true;
_isReadable = false;
_isWritable = false;
}
void WiiFilesystemNode::clearFlags() {
_exists = false;
_isDirectory = false;
_isReadable = false;
_isWritable = false;
}
void WiiFilesystemNode::setFlags(const struct stat *st) {
_exists = true;
_isDirectory = S_ISDIR(st->st_mode);
_isReadable = (st->st_mode & S_IRUSR) > 0;
_isWritable = (st->st_mode & S_IWUSR) > 0;
}
WiiFilesystemNode::WiiFilesystemNode() {
initRootNode();
}
WiiFilesystemNode::WiiFilesystemNode(const Common::String &p) {
if (p.empty()) {
initRootNode();
return;
}
_path = Common::normalizePath(p, '/');
WiiFilesystemFactory::instance().mountByPath(_path);
// "sd:" is not a valid directory, but "sd:/" is
if (_path.lastChar() == ':')
_path += '/';
_displayName = lastPathComponent(_path, '/');
struct stat st;
if (!stat(_path.c_str(), &st))
setFlags(&st);
else
clearFlags();
}
WiiFilesystemNode::WiiFilesystemNode(const Common::String &p, const struct stat *st) {
if (p.empty()) {
initRootNode();
return;
}
_path = Common::normalizePath(p, '/');
// "sd:" is not a valid directory, but "sd:/" is
if (_path.lastChar() == ':')
_path += '/';
_displayName = lastPathComponent(_path, '/');
setFlags(st);
}
bool WiiFilesystemNode::exists() const {
return _exists;
}
AbstractFSNode *WiiFilesystemNode::getChild(const Common::String &n) const {
assert(_isDirectory);
assert(!n.contains('/'));
Common::String newPath(_path);
if (newPath.lastChar() != '/')
newPath += '/';
newPath += n;
return new WiiFilesystemNode(newPath);
}
bool WiiFilesystemNode::getChildren(AbstractFSList &list, ListMode mode, bool hidden) const {
assert(_isDirectory);
if (_path.empty())
return getDevopChildren(list, mode, hidden);
DIR_ITER* dp = diropen (_path.c_str());
if (dp == NULL)
return false;
char filename[MAXPATHLEN];
struct stat st;
while (dirnext(dp, filename, &st) == 0) {
if (strcmp(filename, ".") == 0 || strcmp(filename, "..") == 0)
continue;
Common::String newPath(_path);
if (newPath.lastChar() != '/')
newPath += '/';
newPath += filename;
bool isDir = S_ISDIR(st.st_mode);
if ((mode == Common::FSNode::kListFilesOnly && isDir) ||
(mode == Common::FSNode::kListDirectoriesOnly && !isDir))
continue;
list.push_back(new WiiFilesystemNode(newPath, &st));
}
dirclose(dp);
return true;
}
AbstractFSNode *WiiFilesystemNode::getParent() const {
if (_path.empty())
return NULL;
const char *start = _path.c_str();
const char *end = lastPathComponent(_path, '/');
return new WiiFilesystemNode(Common::String(start, end - start));
}
Common::SeekableReadStream *WiiFilesystemNode::createReadStream() {
return StdioStream::makeFromPath(getPath().c_str(), false);
}
Common::WriteStream *WiiFilesystemNode::createWriteStream() {
return StdioStream::makeFromPath(getPath().c_str(), true);
}
#endif //#if defined(__WII__)
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