| public Contains ( String name ) : System.Boolean | ||
| name | String | |
| Résultat | System.Boolean | |
/// <summary>
/// 添加一个目录目录项
/// </summary>
/// <param name="name"></param>
/// <param name="dir"></param>
/// <returns></returns>
public Boolean Add(String name, INodeDirectory dir)
{
if (Contains(name))
{
return(false);
}
if (dir.Contains(".."))
{
return(false);
}
entries[name] = dir.inode.index;
dir.inode.data.linkCount++;
dir.inode.Save();
dir.AddParent(inode.index);
Save();
return(true);
}
public File(VFSCore vfs, String path, FileMode fileMode)
{
this.vfs = vfs;
var directory = VFS.GetPathDirectory(path);
var name = VFS.GetPathName(path);
VFS.AssertNameValid(name);
INodeDirectory dir = INodeDirectory.Resolve(vfs, directory);
if (dir == null)
{
throw new Exception("无法访问目录");
}
switch (fileMode)
{
case FileMode.CreateNew:
if (dir.Contains(name))
{
throw new Exception("文件已存在");
}
CreateFile(dir, name);
break;
case FileMode.Create:
if (dir.Contains(name))
{
OpenFile(dir, name);
inode.Resize(0);
}
else
{
CreateFile(dir, name);
}
break;
case FileMode.Open:
if (!dir.Contains(name))
{
throw new Exception("文件未找到");
}
OpenFile(dir, name);
break;
case FileMode.OpenOrCreate:
if (dir.Contains(name))
{
OpenFile(dir, name);
}
else
{
CreateFile(dir, name);
}
break;
case FileMode.Truncate:
if (!dir.Contains(name))
{
throw new Exception("文件未找到");
}
OpenFile(dir, name);
inode.Resize(0);
break;
case FileMode.Append:
if (!dir.Contains(name))
{
CreateFile(dir, name);
}
else
{
OpenFile(dir, name);
position = inode.data.sizeByte;
}
break;
default:
throw new ArgumentException();
}
}
/// <summary>
/// 添加一个目录目录项
/// </summary>
/// <param name="name"></param>
/// <param name="dir"></param>
/// <returns></returns>
public Boolean Add(String name, INodeDirectory dir)
{
if (Contains(name))
{
return false;
}
if (dir.Contains(".."))
{
return false;
}
entries[name] = dir.inode.index;
dir.inode.data.linkCount++;
dir.inode.Save();
dir.AddParent(inode.index);
Save();
return true;
}
/// <summary>
/// 目录下是否包含一个文件或目录
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
public Boolean Contains(String name)
{
return(dir.Contains(name));
}
