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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 "backends/fs/psp/psp-stream.h"
#include "backends/platform/psp/powerman.h"
#include <sys/stat.h>
#include <unistd.h>
#include <pspkernel.h>
#define ROOT_PATH "ms0:/"
#include "backends/platform/psp/trace.h"
/**
* Implementation of the ScummVM file system API based on PSPSDK API.
*
* Parts of this class are documented in the base interface class, AbstractFSNode.
*/
class PSPFilesystemNode : public AbstractFSNode {
protected:
Common::String _displayName;
Common::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 Common::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 = true);
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;
virtual bool isWritable() const;
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();
};
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;
PowerMan.beginCriticalSection();
_isValid = (0 == stat(_path.c_str(), &st));
PowerMan.endCriticalSection();
_isDirectory = S_ISDIR(st.st_mode);
}
}
bool PSPFilesystemNode::exists() const {
int ret = 0;
PowerMan.beginCriticalSection(); // Make sure to block in case of suspend
ret = access(_path.c_str(), F_OK);
PowerMan.endCriticalSection();
return ret == 0;
}
bool PSPFilesystemNode::isReadable() const {
int ret = 0;
PowerMan.beginCriticalSection(); // Make sure to block in case of suspend
ret = access(_path.c_str(), R_OK);
PowerMan.endCriticalSection();
return ret == 0;
}
bool PSPFilesystemNode::isWritable() const {
int ret = 0;
PowerMan.beginCriticalSection(); // Make sure to block in case of suspend
ret = access(_path.c_str(), W_OK);
PowerMan.endCriticalSection();
return ret == 0;
}
AbstractFSNode *PSPFilesystemNode::getChild(const Common::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);
Common::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
bool ret = true;
PowerMan.beginCriticalSection(); // Make sure to block in case of suspend
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;
Common::String newPath(_path);
if (newPath.lastChar() != '/')
newPath += '/';
newPath += dir.d_name;
entry._path = newPath;
entry._isDirectory = dir.d_stat.st_attr & FIO_SO_IFDIR;
// Honor the chosen mode
if ((mode == Common::FSNode::kListFilesOnly && entry._isDirectory) ||
(mode == Common::FSNode::kListDirectoriesOnly && !entry._isDirectory))
continue;
myList.push_back(new PSPFilesystemNode(entry));
}
sceIoDclose(dfd);
ret = true;
} else { // dfd <= 0
ret = false;
}
PowerMan.endCriticalSection();
return ret;
}
AbstractFSNode *PSPFilesystemNode::getParent() const {
if (_path == ROOT_PATH)
return 0;
const char *start = _path.c_str();
const char *end = lastPathComponent(_path, '/');
return new PSPFilesystemNode(Common::String(start, end - start), false);
}
Common::SeekableReadStream *PSPFilesystemNode::createReadStream() {
return PSPIoStream::makeFromPath(getPath(), false);
}
Common::WriteStream *PSPFilesystemNode::createWriteStream() {
return PSPIoStream::makeFromPath(getPath(), true);
}
#endif //#ifdef __PSP__
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