FileNodeRef FileSystemRedirect::create(const Path& path,FileNode::Mode mode)
{
Path p = _merge(path);
FileSystemRef fs = mMFS->getFileSystem(p);
if (fs != NULL)
return fs->create(p,mode);
return NULL;
}
Path FileSystemRedirect::mapFrom(const Path& path)
{
Path p = _merge(path);
FileSystemRef fs = mMFS->getFileSystem(p);
if (fs != NULL)
return fs->mapFrom(p);
return NULL;
}
bool FileSystemRedirect::remove(const Path& path)
{
Path p = _merge(path);
FileSystemRef fs = mMFS->getFileSystem(p);
if (fs != NULL)
return fs->remove(p);
return false;
}
FileNodeRef FileSystemRedirect::resolve(const Path& path)
{
Path p = _merge(path);
FileSystemRef fs = mMFS->getFileSystem(p);
if (fs != NULL)
return fs->resolve(p);
return NULL;
}
FileNodeRef MountSystem::getFileNode(const Path& path)
{
Path np = _normalize(path);
FileSystemRef fs = _getFileSystemFromList(np);
if (fs != NULL)
return fs->resolve(np);
return NULL;
}
/// Makes sure paths going in and out of the notifier will have the same format
String FileSystemChangeNotifier::cleanPath(const Path& dir)
{
// This "cleans up" the path, if we don't do this we can get mismatches on the path
// coming from the notifier
FileSystemRef fs = Torque::FS::GetFileSystem(dir);
if (!fs)
return String::EmptyString;
return fs->mapFrom(fs->mapTo(dir));
}
bool FileSystemRedirect::rename(const Path& a,const Path& b)
{
Path na = _merge(a);
Path nb = _merge(b);
FileSystemRef fsa = mMFS->getFileSystem(na);
FileSystemRef fsb = mMFS->getFileSystem(nb);
if (fsa.getPointer() == fsb.getPointer())
return fsa->rename(na,nb);
return false;
}
bool GetFSPath( const Path &inPath, Path &outPath )
{
FileSystemRef sys = GetFileSystem( inPath );
if ( sys )
{
outPath = sys->mapTo( inPath );
return true;
}
return false;
}
bool FileSystemRedirectChangeNotifier::removeNotification( const Path &path, ChangeDelegate callback )
{
FileSystemRedirect *rfs = (FileSystemRedirect*)mFS;
Path redirectPath = rfs->_merge( path );
FileSystemRef fs = rfs->mMFS->getFileSystem( redirectPath );
if ( !fs || !fs->getChangeNotifier() )
return false;
return fs->getChangeNotifier()->removeNotification( redirectPath, callback );
}
bool MountSystem::remove(const Path& path)
{
Path np = _normalize(path);
FileSystemRef fs = _getFileSystemFromList(np);
if (fs && fs->isReadOnly())
{
_log(String::ToString("Cannot remove path %s, filesystem is read-only", path.getFullPath().c_str()));
return false;
}
if (fs != NULL)
return fs->remove(np);
return false;
}
bool MountSystem::mapFSPath( const String &inRoot, const Path &inPath, Path &outPath )
{
FileSystemRef fs = _getFileSystemFromList(inRoot);
if ( fs == NULL )
{
outPath = Path();
return false;
}
outPath = fs->mapFrom( inPath );
return outPath.getFullPath() != String();
}
FileRef MountSystem::createFile(const Path& path)
{
Path np = _normalize(path);
FileSystemRef fs = _getFileSystemFromList(np);
if (fs && fs->isReadOnly())
{
_log(String::ToString("Cannot create file %s, filesystem is read-only", path.getFullPath().c_str()));
return NULL;
}
if (fs != NULL)
return static_cast<File*>(fs->create(np,FileNode::File).getPointer());
return NULL;
}
DirectoryRef MountSystem::createDirectory(const Path& path, FileSystemRef fs)
{
Path np = _normalize(path);
if (fs.isNull())
fs = _getFileSystemFromList(np);
if (fs && fs->isReadOnly())
{
_log(String::ToString("Cannot create directory %s, filesystem is read-only", path.getFullPath().c_str()));
return NULL;
}
if (fs != NULL)
return static_cast<Directory*>(fs->create(np,FileNode::Directory).getPointer());
return NULL;
}
bool MountSystem::isReadOnly(const Path& path)
{
// first check to see if filesystem is read only
FileSystemRef fs = getFileSystem(path);
if ( fs.isNull() )
// no filesystem owns this file...oh well, return false
return false;
if (fs->isReadOnly())
return true;
// check the file attributes, note that if the file does not exist,
// this function returns false. that should be ok since we know
// the file system is writable at this point.
FileNode::Attributes attr;
if (getFileAttributes(path,&attr))
return attr.flags & FileNode::ReadOnly;
return false;
}
bool MountSystem::unmount(FileSystemRef fs)
{
if (fs.isNull())
return false;
// iterate back to front in case FS is in list multiple times.
// also check that fs is not null each time since its a strong ref
// so it could be nulled during removal.
bool unmounted = false;
for (S32 i = mMountList.size() - 1; !fs.isNull() && i >= 0; --i)
{
if (mMountList[i].fileSystem.getPointer() == fs.getPointer())
{
mMountList.erase(i);
unmounted = true;
}
}
return unmounted;
}
bool MountSystem::isDirectory(const Path& path, FileSystemRef fsRef)
{
FileNode::Attributes attr;
if (fsRef.isNull())
{
if (getFileAttributes(path,&attr))
return attr.flags & FileNode::Directory;
return false;
}
else
{
FileNodeRef fnRef = fsRef->resolve(path);
if (fnRef.isNull())
return false;
FileNode::Attributes attr;
if (fnRef->getAttributes(&attr))
return attr.flags & FileNode::Directory;
return false;
}
}
bool MountSystem::rename(const Path& from,const Path& to)
{
// Will only rename files on the same filesystem
Path pa = _normalize(from);
Path pb = _normalize(to);
FileSystemRef fsa = _getFileSystemFromList(pa);
FileSystemRef fsb = _getFileSystemFromList(pb);
if (!fsa || !fsb)
return false;
if (fsa.getPointer() != fsb.getPointer())
{
_log(String::ToString("Cannot rename path %s to a different filesystem", from.getFullPath().c_str()));
return false;
}
if (fsa->isReadOnly() || fsb->isReadOnly())
{
_log(String::ToString("Cannot rename path %s; source or target filesystem is read-only", from.getFullPath().c_str()));
return false;
}
return fsa->rename(pa,pb);
}
bool VirtualMountSystem::unmount(FileSystemRef fs)
{
bool unmounted = Parent::unmount(fs);
if (!unmounted)
return false;
// this is a linear time operation, because we have to search every path in all roots
// to remove references to the fs.
// contant time operation can be achieved be using the unmount(string) version, which unmounts all
// filesystems for a given root and so doesn't need to do any searching.
U32 start = Platform::GetPlatform()->getRealMilliseconds();
for (RootToPathFSMap::Iterator riter = mMountMap.begin();
riter != mMountMap.end();
++riter)
{
PathFSMap* rootDict = (*riter).value;
for (PathFSMap::Iterator piter = rootDict->begin();
piter != rootDict->end();
++piter)
{
Vector<FileSystemRef>& plist = (*piter).value;
for (S32 i = plist.size() - 1;
i >= 0;
i--)
{
if (plist[i].getPointer() == fs.getPointer())
plist.erase(i);
}
}
}
if (gVMSVerboseLog)
_log(String::ToString("Unmounted virtual file system in %ums", Platform::GetPlatform()->getRealMilliseconds() - start));
return true;
}
