// Create a subkey underneath this particular registry key.
public IRegistryKeyProvider CreateSubKey(String subkey)
{
lock(this)
{
if(deleted)
{
throw new ArgumentException
(_("IO_RegistryKeyNotExist"));
}
if(subkeys == null)
{
subkeys = new Hashtable
(CaseInsensitiveHashCodeProvider.Default,
CaseInsensitiveComparer.Default);
}
Object value = subkeys[subkey];
if(value == null)
{
value = new MemoryKeyProvider
(this, name + "\\" + subkey, subkey);
subkeys[subkey] = value;
}
return (IRegistryKeyProvider)value;
}
}
// Create a subkey underneath this particular registry key.
public IRegistryKeyProvider CreateSubKey(String subkey)
{
lock (this)
{
if (deleted)
{
throw new ArgumentException
(_("IO_RegistryKeyNotExist"));
}
if (subkeys == null)
{
subkeys = new Hashtable
(CaseInsensitiveHashCodeProvider.Default,
CaseInsensitiveComparer.Default);
}
Object value = subkeys[subkey];
if (value == null)
{
value = new MemoryKeyProvider
(this, name + "\\" + subkey, subkey);
subkeys[subkey] = value;
}
return((IRegistryKeyProvider)value);
}
}
// Constructor.
public MemoryKeyProvider(MemoryKeyProvider parent, String fullName,
String name)
{
this.parent = parent;
this.fullName = fullName;
this.name = name;
this.subkeys = null;
this.values = null;
this.deleted = false;
}
// Constructor.
public MemoryKeyProvider(MemoryKeyProvider parent, String fullName,
String name)
{
this.parent = parent;
this.fullName = fullName;
this.name = name;
this.subkeys = null;
this.values = null;
this.deleted = false;
}
// Get a registry key provider for a particular hive.
internal static IRegistryKeyProvider GetProvider
(RegistryHive hKey, String name)
{
int index;
lock (typeof(Registry))
{
// Allocate the "providers" array if necessary.
if (providers == null)
{
providers = new IRegistryKeyProvider[7];
}
// See if we already have a provider for this hive.
index = ((int)hKey) - ((int)(RegistryHive.ClassesRoot));
if (providers[index] != null)
{
return(providers[index]);
}
// Create a Win32 provider if we are on a Windows system.
if (Win32KeyProvider.IsWin32())
{
providers[index] = new Win32KeyProvider
(name, Win32KeyProvider.HiveToHKey(hKey));
return(providers[index]);
}
// Try to create a file-based provider for the hive.
try
{
providers[index] = new FileKeyProvider(hKey, name);
return(providers[index]);
}
catch (NotSupportedException)
{
// Could not create the hive directory - fall through.
}
// Create a memory-based provider on all other systems.
providers[index] = new MemoryKeyProvider
(null, name, name);
return(providers[index]);
}
}
// Delete this key entry.
public void Delete()
{
MemoryKeyProvider parent;
// Delete the information in this entry.
lock (this)
{
if (deleted)
{
// This key was already deleted.
throw new ArgumentException
(_("IO_RegistryKeyNotExist"));
}
else if (subkeys != null && subkeys.Count != 0)
{
throw new InvalidOperationException
(_("IO_RegistryHasSubKeys"));
}
else
{
deleted = true;
subkeys = null;
if (values != null && values.Count != 0)
{
values.Clear();
}
values = null;
}
parent = this.parent;
}
// Remove the name from the parent provider.
if (parent != null)
{
lock (parent)
{
if (parent.subkeys != null)
{
parent.subkeys.Remove(name);
}
}
}
}
// Delete this key entry.
public void Delete()
{
MemoryKeyProvider parent;
// Delete the information in this entry.
lock(this)
{
if(deleted)
{
// This key was already deleted.
throw new ArgumentException
(_("IO_RegistryKeyNotExist"));
}
else if(subkeys != null && subkeys.Count != 0)
{
throw new InvalidOperationException
(_("IO_RegistryHasSubKeys"));
}
else
{
deleted = true;
subkeys = null;
if(values != null && values.Count != 0)
{
values.Clear();
}
values = null;
}
parent = this.parent;
}
// Remove the name from the parent provider.
if(parent != null)
{
lock(parent)
{
if(parent.subkeys != null)
{
parent.subkeys.Remove(name);
}
}
}
}
// Get a registry key provider for a particular hive.
internal static IRegistryKeyProvider GetProvider
(RegistryHive hKey, String name)
{
int index;
lock(typeof(Registry))
{
// Allocate the "providers" array if necessary.
if(providers == null)
{
providers = new IRegistryKeyProvider[7];
}
// See if we already have a provider for this hive.
index = ((int)hKey) - ((int)(RegistryHive.ClassesRoot));
if(providers[index] != null)
{
return providers[index];
}
// Create a Win32 provider if we are on a Windows system.
if(Win32KeyProvider.IsWin32())
{
providers[index] = new Win32KeyProvider
(name, Win32KeyProvider.HiveToHKey(hKey));
return providers[index];
}
// Try to create a file-based provider for the hive.
try
{
providers[index] = new FileKeyProvider(hKey, name);
return providers[index];
}
catch(NotSupportedException)
{
// Could not create the hive directory - fall through.
}
// Create a memory-based provider on all other systems.
providers[index] = new MemoryKeyProvider
(null, name, name);
return providers[index];
}
}
