public virtual int write(string path, int flags, string buffer, int offset, int length)
{
string workPath = "/";
FileNode aNode;
string[] pathArray = path.Split('/');
int counter = 0;
string loadPath = "";
FileNode newDir;
FileNode newfile;
while (counter <= pathArray.Length - 2)
{
if (workPath == "/")
workPath = workPath + pathArray[counter];
else
workPath = workPath + '/' + pathArray[counter];
counter++;
}
if (flags == writeFlags.DELETE)
{
//unlink a node
counter = 0;
aNode = this.walk(path);
if (aNode.getType() == fileTypes.Mount)
{
loadPath = this.parsePath(aNode, path);
return (aNode.getMount().write(loadPath, flags, buffer, offset, length));
}
if (aNode.getType() == fileTypes.Symlink)
{
string[] fileStruct = path.Split('/');
string remPath = aNode.getName() + "/" + fileStruct[fileStruct.Length - 1];
return (this.write(remPath, flags, buffer, offset, length));
}
if (aNode.getType() == fileTypes.Union)
{
string[] fileStruct = path.Split('/');
counter = 0;
while (counter < aNode.getDirList().Count)
{
string remPath = aNode.getDirList()[counter] + "/" + fileStruct[fileStruct.Length - 1];
this.write(remPath, flags, buffer, offset, length);
counter++;
}
return 0;
}
FileNode prevNode = aNode.getPrev();
FileNode nextNode = aNode.getNext();
while (aNode.getParent().getDirList()[counter].getName() != aNode.getName() && counter < aNode.getParent().getDirList().Count)
{
counter++;
}
prevNode.setNext(nextNode);
nextNode.setPrev(prevNode);
return 0;
}
if (flags == writeFlags.CREATEDIR)
{
aNode = this.walk(workPath);
if (aNode.getType() == 1 && buffer == "1")
{
newDir = new FileNode(pathArray[pathArray.Length - 1], fileTypes.Directory);
newDir.addParent(aNode);
aNode.addChild(newDir);
if (aNode.countChildren() > 0)
{
newDir.setPrev(aNode.getDirList().ElementAt(aNode.countChildren()-1));
}
if (aNode.countChildren() >= 2)
{
aNode.getDirList()[aNode.countChildren() - 2].setNext(newDir);
}
this.touched(aNode);
return 0;
}
else if (aNode.getType() == fileTypes.Symlink)
{
return (this.write(aNode.getSym() + "/" + pathArray[pathArray.Length - 1], flags, buffer, offset, length));
}
else if (aNode.getType() == fileTypes.Mount)
{
loadPath = this.parsePath(aNode, path);
return (aNode.getMount().write(loadPath, flags, buffer, offset, length));
}
else if (aNode.getType() == fileTypes.Union)
{
loadPath = this.parsePath(aNode, path);
int count = 0;
while (count < aNode.getDirList().Count)
{
this.touched(aNode);
this.write(aNode.getDirList()[count] + loadPath, flags, buffer, offset, length);
count++;
}
return (0);
}
else
return -1;
}
else if (flags == writeFlags.CREATEDATAFILE)
{
aNode = this.walk(workPath);
if (aNode.getType() == 1)
{
var count = 0;
if (aNode.getDirList().Count > 0)
{
while (count < aNode.getData().Length - 1 && aNode.getDirList()[count].getName() != pathArray[pathArray.Length - 1])
{
count++;
}
aNode.getDirList();
//Console.WriteLine("write file debug:\n count"+count+"\ndir list length"+aNode.getDirList().Count + "\npatharray" + pathArray[pathArray.Length - 1]);
if (aNode.getDirList()[count].getName() == pathArray[pathArray.Length - 1] && aNode.getDirList()[count].getName() != "")
{
aNode.getDirList()[count].putData(buffer);
this.touched(aNode);
return 0;
}
}
FileNode newFile = new FileNode(pathArray[pathArray.Length - 1], fileTypes.Text);
newFile.addParent(aNode);
aNode.addChild(newFile);
if (aNode.countChildren() > 0)
{
newFile.setPrev(aNode.getDirList().ElementAt(aNode.countChildren() - 1));
}
if (aNode.countChildren() >= 2)
{
aNode.getDirList()[aNode.countChildren() - 2].setNext(newFile);
}
newFile.putData(buffer);
this.touched(aNode);
return 0;
}
else if (aNode.getType() == fileTypes.Mount)
{
loadPath = this.parsePath(aNode, path);
return aNode.getMount().write(loadPath, flags, buffer, offset, length);
}
else if (aNode.getType() == fileTypes.Union)
{
loadPath = this.parsePath(aNode, path);
counter = 0;
while (counter < aNode.getData().Length)
{
this.touched(aNode);
this.write(aNode.getDirList()[counter] + loadPath, flags, buffer, offset, length);
counter++;
}
return 0;
}
else
return -2;
}
else if (flags == 3)
{
aNode = this.walk(workPath);
var bNode = this.walk(buffer);
if (bNode.getType() == fileTypes.Directory || bNode.getType() == fileTypes.Mount)
{
if (aNode.getType() == fileTypes.Directory)
{
newDir = aNode.getDirList()[aNode.getDirList().Count] = new FileNode(pathArray[pathArray.Length - 1], fileTypes.Symlink);
newDir.setSym(bNode);
newDir.addParent(aNode);
aNode.addChild(newDir);
if (aNode.countChildren() > 0)
{
newDir.setPrev(aNode.getDirList().ElementAt(aNode.countChildren() - 1));
}
if (aNode.countChildren() >= 2)
{
aNode.getDirList()[aNode.countChildren() - 2].setNext(newDir);
}
this.touched(aNode);
return 0;
}
else if (aNode.getType() == fileTypes.Mount)
{
loadPath = this.parsePath(aNode, path);
this.touched(aNode);
return (aNode.getMount().write(loadPath, flags, buffer, offset, length));
}
else
return -3;
}
if (bNode.getType() == fileTypes.Mount)
{
if (aNode.getType() == fileTypes.Directory)
{
newfile = aNode.getDirList()[aNode.getDirList().Count] = new FileNode(pathArray[pathArray.Length - 1], fileTypes.Symlink);
newfile.setSym(bNode);
newfile.addParent(aNode);
aNode.addChild(newfile);
if (aNode.countChildren() > 0)
{
newfile.setPrev(aNode.getDirList().ElementAt(aNode.countChildren() - 1));
}
if (aNode.countChildren() >= 2)
{
aNode.getDirList()[aNode.countChildren() - 2].setNext(newfile);
}
this.touched(aNode);
return 0;
}
if (aNode.getType() == fileTypes.Mount)
{
loadPath = this.parsePath(aNode, path);
this.touched(aNode);
return (aNode.getMount().write(loadPath, flags, buffer, offset, length));
}
else
return -3;
}
if (bNode.getType() == fileTypes.Union)
{
if (aNode.getType() == 1)
{
newfile = new FileNode(pathArray[pathArray.Length - 1], 4);
aNode.getDirList()[aNode.getDirList().Count] = newfile;
/*
newfile.Name = pathArray[pathArray.length - 1];
newfile.Type = 4;
newfile.next = 0;
newfile.Data = buffer;
newfile.prev = aNode.Data[aNode.Data.length - 1];
newfile.Parent = aNode;
if (aNode.Data.length >= 2)
{
aNode.Data[aNode.Data.length - 2].next = newfile;
}*/
this.touched(aNode);
return 0;
}
if (aNode.getType() == fileTypes.Mount)
{
loadPath = this.parsePath(aNode, path);
this.touched(aNode);
return aNode.getMount().write(loadPath, flags, buffer, offset, length);
}
else
return -4;
}
else
return bNode.getType();
}
else if (flags == fileTypes.Symlink)
{
aNode = this.walk(workPath);
if (aNode.getType() == fileTypes.Directory)
{/*
newfile = 0;
newfile = aNode.Data[aNode.Data.length] = new fileNode();
newfile.Name = pathArray[pathArray.length - 1];
newfile.Type = 3;
newfile.next = 0;
newfile.Data = buffer;
newfile.prev = aNode.Data[aNode.Data.length - 1];
newfile.Parent = aNode;
//newfile.watchers = [];
//newfile.meta = [];
//newfile.watchers = [];
//newfile.meta = ["owner:local", "perm:755", "type:type/default"];
if (aNode.Data.length >= 2)
{
aNode.Data[aNode.Data.length - 2].next = newfile;
}*/
this.touched(aNode);
return 0;
}
else if (aNode.getType() == fileTypes.Mount)
{
loadPath = this.parsePath(aNode, path);
this.touched(aNode);
return (aNode.getMount().write(loadPath, flags, buffer, offset, length));
}
else if (aNode.getType() == fileTypes.Union)
{
loadPath = this.parsePath(aNode, path);
counter = 0;
/*
while (counter < aNode.Data.length)
{
this.touched(path);
this.journal.write(path, buffer);
this.write(aNode.Data[counter] + loadPath, flags, buffer, offset, length, this.sessionKey);
counter++;
}*/
return 0;
}
else
return -2;
}
else if (flags == 5)
{
aNode = this.walk(workPath);
if (aNode.getType() == fileTypes.Directory)
{/*
aNode.Data[aNode.Data.length] = new fileNode();
newDir = 0;
newDir = aNode.Data[aNode.Data.length - 1];
newDir.Name = pathArray[pathArray.length - 1];
newDir.Type = 7;
newDir.next = 0;
newDir.Data = buffer;
newDir.prev = aNode.Data[aNode.Data.length - 1];
newDir.Parent = aNode;
//newDir.watchers = [];
//newDir.meta = ["owner:local", "perm:755", "type:type/default"];*/
this.touched(aNode);
return 0;
}
if (aNode.getType() == fileTypes.Directory)
{
loadPath = this.parsePath(aNode, path);
this.touched(aNode);
return (aNode.getMount().write(loadPath, flags, buffer, offset, length));
}
else
return -4;
}
else if (flags == fileTypes.Mount)
{
if (this.walk(path) != null)
{
aNode = this.walk(path);
if (aNode.getType() == 5)
{
return -1;
}
if (aNode.getType() == fileTypes.Union)
{
//aNode.Data[aNode.Data.length] = buffer;
this.touched(aNode);
return 0;
}
else
aNode.putData( buffer);
return 0;
}
else
return -5;
}
else
return -10;
}
public fileSystem mount(int mode, string fsTypeName, string mountPoint, string[] args)
{
string workPath = "/";
FileNode aNode;
string[] pathArray = mountPoint.Split('/');
int counter = 0;
fileSystem toMount = null;
/*
if (fsTypeName == "localfs")
toMount = new LocalFS();
if (fsTypeName == "timefs")
toMount = new ClockFS();
if (fsTypeName == "winfs")
toMount = new WinFS();
if (fsTypeName == "sysfs")
toMount = new SysFS(args[0]);
if (fsTypeName == "homefs")
toMount = new HomeFS();
if (fsTypeName == "procfs")
toMount = new ProcFS();
if (fsTypeName == "xmppfs")
toMount = new XMPPFS();
*/
while (counter <= pathArray.Length - 2)
{
if (workPath == "/")
workPath = workPath + pathArray[counter];
else
workPath = workPath + '/' + pathArray[counter];
counter++;
}
aNode = this.walk(workPath);
//parse list of available filesystems for the one we've been asked to mount
//while (counter < vfsList.length && vfsList[counter].Name != fs_type)
//{
// counter++;
//}
if (aNode.getType() == 1)//&& vfsList[counter].Name == fs_type)
{
var count = 0;
if (aNode.getDirList().Count > 0)
{
while (count < aNode.getData().Length - 1 && aNode.getDirList()[count].getName() != pathArray[pathArray.Length - 1])
{
count++;
}
aNode.getDirList();
}
FileNode newFile = new FileNode(pathArray[pathArray.Length - 1], fileTypes.Mount);
newFile.addParent(aNode);
aNode.addChild(newFile);
if (aNode.countChildren() > 0)
{
newFile.setPrev(aNode.getDirList().ElementAt(aNode.countChildren() - 1));
}
if (aNode.countChildren() >= 2)
{
aNode.getDirList()[aNode.countChildren() - 2].setNext(newFile);
}
this.touched(aNode);
newFile.setMount(toMount);
return toMount.onmount(mountPoint);// serverAddress, fs_type, mountPoint, user, pass, argv));
}
else
return null;
}
