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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.
*
* $URL$
* $Id$
*/
#ifdef __PSP__
#include "engines/engine.h"
#include "backends/fs/abstract-fs.h"
#include <sys/stat.h>
#include <unistd.h>
#define ROOT_PATH "ms0:/"
/**
* Implementation of the ScummVM file system API based on PSPSDK API.
*
* Parts of this class are documented in the base interface class, AbstractFilesystemNode.
*/
class PSPFilesystemNode : public AbstractFilesystemNode {
protected:
String _displayName;
String _path;
bool _isDirectory;
bool _isValid;
public:
/**
* Creates a PSPFilesystemNode with the root node as path.
*/
PSPFilesystemNode();
/**
* Creates a PSPFilesystemNode for a given path.
*
* @param path String with the path the new node should point to.
* @param verify true if the isValid and isDirectory flags should be verified during the construction.
*/
PSPFilesystemNode(const Common::String &p, bool verify);
virtual bool exists() const { return access(_path.c_str(), F_OK) == 0; }
virtual String getDisplayName() const { return _displayName; }
virtual String getName() const { return _displayName; }
virtual String getPath() const { return _path; }
virtual bool isDirectory() const { return _isDirectory; }
virtual bool isReadable() const { return access(_path.c_str(), R_OK) == 0; }
virtual bool isWritable() const { return access(_path.c_str(), W_OK) == 0; }
virtual AbstractFilesystemNode *getChild(const String &n) const;
virtual bool getChildren(AbstractFSList &list, ListMode mode, bool hidden) const;
virtual AbstractFilesystemNode *getParent() const;
};
/**
* Returns the last component of a given path.
*
* Examples:
* /foo/bar.txt would return /bar.txt
* /foo/bar/ would return /bar/
*
* @param str String containing the path.
* @return Pointer to the first char of the last component inside str.
*/
const char *lastPathComponent(const Common::String &str) {
if(str.empty())
return "";
const char *start = str.c_str();
const char *cur = start + str.size() - 2;
while (cur >= start && *cur != '/') {
--cur;
}
return cur + 1;
}
PSPFilesystemNode::PSPFilesystemNode() {
_isDirectory = true;
_displayName = "Root";
_isValid = true;
_path = ROOT_PATH;
}
PSPFilesystemNode::PSPFilesystemNode(const Common::String &p, bool verify) {
assert(p.size() > 0);
_path = p;
_displayName = lastPathComponent(_path);
_isValid = true;
_isDirectory = true;
if (verify) {
struct stat st;
_isValid = (0 == stat(_path.c_str(), &st));
_isDirectory = S_ISDIR(st.st_mode);
}
}
AbstractFilesystemNode *PSPFilesystemNode::getChild(const String &n) const {
// FIXME: Pretty lame implementation! We do no error checking to speak
// of, do not check if this is a special node, etc.
assert(_isDirectory);
String newPath(_path);
if (_path.lastChar() != '/')
newPath += '/';
newPath += n;
return new PSPFilesystemNode(newPath, true);
}
bool PSPFilesystemNode::getChildren(AbstractFSList &myList, ListMode mode, bool hidden) const {
assert(_isDirectory);
//TODO: honor the hidden flag
int dfd = sceIoDopen(_path.c_str());
if (dfd > 0) {
SceIoDirent dir;
memset(&dir, 0, sizeof(dir));
while (sceIoDread(dfd, &dir) > 0) {
// Skip 'invisible files
if (dir.d_name[0] == '.')
continue;
PSPFilesystemNode entry;
entry._isValid = true;
entry._displayName = dir.d_name;
entry._path = _path;
entry._path += dir.d_name;
entry._isDirectory = dir.d_stat.st_attr & FIO_SO_IFDIR;
if (entry._isDirectory)
entry._path += "/";
// Honor the chosen mode
if ((mode == FilesystemNode::kListFilesOnly && entry._isDirectory) ||
(mode == FilesystemNode::kListDirectoriesOnly && !entry._isDirectory))
continue;
myList.push_back(new PSPFilesystemNode(entry));
}
sceIoDclose(dfd);
return true;
} else {
return false;
}
}
AbstractFilesystemNode *PSPFilesystemNode::getParent() const {
if (_path == ROOT_PATH)
return 0;
const char *start = _path.c_str();
const char *end = lastPathComponent(_path);
return new PSPFilesystemNode(String(start, end - start), false);
}
#endif //#ifdef __PSP__
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