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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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#if defined(POSIX) || defined(PSP2) || defined(__DS__)
#define FORBIDDEN_SYMBOL_ALLOW_ALL
#include "backends/fs/posix-drives/posix-drives-fs.h"
#include "backends/fs/posix/posix-iostream.h"
#include "common/algorithm.h"
#include "common/bufferedstream.h"
#include <dirent.h>
DrivePOSIXFilesystemNode::DrivePOSIXFilesystemNode(const Common::String &path, const Config &config) :
POSIXFilesystemNode(path),
_isPseudoRoot(false),
_config(config) {
if (isDrive(path)) {
_isDirectory = true;
_isValid = true;
// FIXME: Add a setting for deciding whether drive paths need to end with a slash
if (!_path.hasSuffix("/")) {
_path += "/";
}
return;
}
}
DrivePOSIXFilesystemNode::DrivePOSIXFilesystemNode(const Config &config) :
_isPseudoRoot(true),
_config(config) {
_isDirectory = true;
_isValid = false;
}
void DrivePOSIXFilesystemNode::configureStream(StdioStream *stream) {
if (!stream) {
return;
}
if (_config.bufferingMode != kBufferingModeStdio) {
// Disable stdio buffering
stream->setBufferSize(0);
} else if (_config.bufferSize) {
stream->setBufferSize(_config.bufferSize);
}
}
Common::SeekableReadStream *DrivePOSIXFilesystemNode::createReadStream() {
StdioStream *readStream = PosixIoStream::makeFromPath(getPath(), StdioStream::WriteMode_Read);
configureStream(readStream);
if (_config.bufferingMode == kBufferingModeScummVM) {
uint32 bufferSize = _config.bufferSize != 0 ? _config.bufferSize : 1024;
return Common::wrapBufferedSeekableReadStream(readStream, bufferSize, DisposeAfterUse::YES);
}
return readStream;
}
Common::SeekableWriteStream *DrivePOSIXFilesystemNode::createWriteStream(bool atomic) {
StdioStream *writeStream = PosixIoStream::makeFromPath(getPath(), atomic ?
StdioStream::WriteMode_WriteAtomic : StdioStream::WriteMode_Write);
configureStream(writeStream);
if (_config.bufferingMode == kBufferingModeScummVM) {
uint32 bufferSize = _config.bufferSize != 0 ? _config.bufferSize : 1024;
return Common::wrapBufferedWriteStream(writeStream, bufferSize);
}
return writeStream;
}
DrivePOSIXFilesystemNode *DrivePOSIXFilesystemNode::getChildWithKnownType(const Common::String &n, bool isDirectoryFlag) const {
assert(_isDirectory);
// Make sure the string contains no slashes
assert(!n.contains('/'));
Common::String newPath(_path);
if (_path.lastChar() != '/')
newPath += '/';
newPath += n;
DrivePOSIXFilesystemNode *child = reinterpret_cast<DrivePOSIXFilesystemNode *>(makeNode());
child->_path = newPath;
child->_isValid = true;
child->_isPseudoRoot = false;
child->_isDirectory = isDirectoryFlag;
child->_displayName = n;
return child;
}
AbstractFSNode *DrivePOSIXFilesystemNode::getChild(const Common::String &n) const {
DrivePOSIXFilesystemNode *child = getChildWithKnownType(n, false);
child->setFlags();
return child;
}
bool DrivePOSIXFilesystemNode::getChildren(AbstractFSList &list, AbstractFSNode::ListMode mode, bool hidden) const {
assert(_isDirectory);
if (_isPseudoRoot) {
return _config.getDrives(list, hidden);
} else {
DIR *dirp = opendir(_path.c_str());
struct dirent *dp;
if (!dirp)
return false;
while ((dp = readdir(dirp)) != nullptr) {
// Skip 'invisible' files if necessary
if (dp->d_name[0] == '.' && !hidden) {
continue;
}
// Skip '.' and '..' to avoid cycles
if ((dp->d_name[0] == '.' && dp->d_name[1] == 0) || (dp->d_name[0] == '.' && dp->d_name[1] == '.')) {
continue;
}
AbstractFSNode *child = nullptr;
#if !defined(SYSTEM_NOT_SUPPORTING_D_TYPE)
if (dp->d_type == DT_DIR || dp->d_type == DT_REG) {
child = getChildWithKnownType(dp->d_name, dp->d_type == DT_DIR);
} else
#endif
{
child = getChild(dp->d_name);
}
// Honor the chosen mode
if ((mode == Common::FSNode::kListFilesOnly && child->isDirectory()) ||
(mode == Common::FSNode::kListDirectoriesOnly && !child->isDirectory())) {
delete child;
continue;
}
list.push_back(child);
}
closedir(dirp);
return true;
}
}
AbstractFSNode *DrivePOSIXFilesystemNode::getParent() const {
if (_isPseudoRoot) {
return nullptr;
}
if (isDrive(_path)) {
return makeNode();
}
return POSIXFilesystemNode::getParent();
}
bool DrivePOSIXFilesystemNode::isDrive(const Common::String &path) const {
Common::String normalizedPath = Common::normalizePath(path, '/');
return _config.isDrive(normalizedPath);
}
#endif //#if defined(POSIX)
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