Initial commit

backends/fs/wii/wii-fs.cpp

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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(__WII__)
+
+#define FORBIDDEN_SYMBOL_EXCEPTION_time_h
+#define FORBIDDEN_SYMBOL_EXCEPTION_unistd_h
+
+#define FORBIDDEN_SYMBOL_EXCEPTION_mkdir
+
+#include "backends/fs/wii/wii-fs.h"
+#include "backends/fs/wii/wii-fs-factory.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>
+
+// 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 = ( (st->st_mode & S_IFDIR) != 0 );
+	_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) != -1)
+		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 *dp = opendir (_path.c_str());
+
+	if (dp == NULL)
+		return false;
+
+	struct dirent *pent;
+
+	while ((pent = readdir(dp)) != NULL) {
+		if (strcmp(pent->d_name, ".") == 0 || strcmp(pent->d_name, "..") == 0)
+			continue;
+
+		Common::String newPath(_path);
+		if (newPath.lastChar() != '/')
+			newPath += '/';
+		newPath += pent->d_name;
+
+		bool isDir = ( pent->d_type == DT_DIR );
+
+		if ((mode == Common::FSNode::kListFilesOnly && isDir) ||
+			(mode == Common::FSNode::kListDirectoriesOnly && !isDir))
+			continue;
+
+		struct stat st;
+		st.st_mode = 0;
+		st.st_mode |= ( isDir ? S_IFDIR : 0 );
+		st.st_mode |= S_IRUSR;
+		st.st_mode |= S_IWUSR;
+
+		list.push_back(new WiiFilesystemNode(newPath, &st));
+	}
+
+	closedir(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() {
+	StdioStream *readStream = StdioStream::makeFromPath(getPath(), StdioStream::WriteMode_Read);
+
+	// disable newlib's buffering, the device libraries handle caching
+	if (readStream) {
+		readStream->setBufferSize(0);
+	}
+
+	return readStream;
+}
+
+Common::SeekableWriteStream *WiiFilesystemNode::createWriteStream(bool atomic) {
+	StdioStream *writeStream = StdioStream::makeFromPath(getPath(), atomic ?
+			StdioStream::WriteMode_WriteAtomic : StdioStream::WriteMode_Write);
+
+	// disable newlib's buffering, the device libraries handle caching
+	if (writeStream) {
+		writeStream->setBufferSize(0);
+	}
+
+	return writeStream;
+}
+
+bool WiiFilesystemNode::createDirectory() {
+	if(!_exists) {
+ 		if (mkdir(_path.c_str(), 0755) == 0) {
+			_exists = true;
+			_isDirectory = true;
+			_isReadable = true;
+			_isWritable = true;
+		}
+	}
+
+	return _exists && _isDirectory;
+}
+
+#endif //#if defined(__WII__)