/// <summary>
/// Gets the last PulsarFSBlock of the directory
/// </summary>
private PulsarFSBlock GetBlockToEdit()
{
PulsarFSBlock ret = _StartBlock;
while (ret.NextBlock != 0)
{
ret = PulsarFSBlock.Read(_StartBlock.Partition, _StartBlock.NextBlock);
}
if (ret.BlockNumber == _StartBlock.BlockNumber)
{
ret = PulsarFSBlock.GetFreeBlock(part);
ret.Used = true;
ret.ContentSize = 0;
ret.NextBlock = 0;
_StartBlock.NextBlock = ret.BlockNumber;
PulsarFSBlock.Write(part, _StartBlock);
PulsarFSBlock.Write(part, ret);
}
if (part.NewBlockArray(1).Length - ret.ContentSize < 12)
{
PulsarFSBlock b = PulsarFSBlock.GetFreeBlock(part);
if (b == null)
{
return(null);
}
ret.NextBlock = b.BlockNumber;
PulsarFSBlock.Write(part, ret);
b.Used = true;
ret = b;
}
return(ret);
}
/// <summary>
/// Writes all the specified Bytes into the file
/// </summary>
/// <param name="Data">The array Byte to write into file</param>
public void WriteAllBytes(Byte[] Data)
{
if (_StartBlock.NextBlock != 0)
{
PulsarFileSystem.ClearBlocks(_StartBlock);
_StartBlock.NextBlock = 0;
PulsarFSBlock.Write(PulsarFileSystem.mFS.Partition, _StartBlock);
}
int index = 0;
PulsarFSBlock curb = PulsarFSBlock.GetFreeBlock(PulsarFileSystem.mFS.Partition);
_StartBlock.NextBlock = curb.BlockNumber;
PulsarFSBlock.Write(part, _StartBlock);
do
{
Byte[] arr = new Byte[PulsarFSBlock.MaxBlockContentSize];
index = Utils.CopyByteToByte(Data, index, arr, 0, arr.Length);
curb.Used = true;
curb.Content = arr;
if (index != Data.Length)
{
PulsarFSBlock b = PulsarFSBlock.GetFreeBlock(PulsarFileSystem.mFS.Partition);
curb.NextBlock = b.BlockNumber;
curb.ContentSize = (uint)arr.Length;
PulsarFSBlock.Write(PulsarFileSystem.mFS.Partition, curb);
curb = b;
}
else
{
curb.ContentSize = (uint)(Data.Length % arr.Length);
PulsarFSBlock.Write(PulsarFileSystem.mFS.Partition, curb);
}
}while (index != Data.Length);
EditEntryInfo(EntryInfoPosition.DateTimeModified, Environment.DateTime.Now.TimeStamp);
EditEntryInfo(EntryInfoPosition.DateTimeLastAccess, Environment.DateTime.Now.TimeStamp);
}
/// <summary>
/// Creates a new PulsarEntry in the current directory. Uses a random Block.
/// </summary>
/// <param name="p">The partition where to create the new PulsarEntry</param>
/// <param name="name">The new PulsarEntry's name</param>
protected static PulsarFSBlock CreateEntry(Partition p, String name)
{
return(CreateEntry(p, PulsarFSBlock.GetFreeBlock(p), name));
}