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using System;
using System.Text;
using System.Collections;
using System.Runtime.InteropServices;
namespace Mono.Debugger
{
public class SymbolTableCollection : DebuggerMarshalByRefObject, ISymbolTable, ICollection
{
ArrayList symtabs = new ArrayList ();
ArrayList ranges = new ArrayList ();
bool has_ranges;
bool in_update;
bool needs_update = false;
int locked = 0;
public void AddSymbolTable (ISymbolTable symtab)
{
if (symtab == null)
return;
symtabs.Add (symtab);
symtab.SymbolTableChanged += new SymbolTableChangedHandler (update_handler);
update_handler ();
}
public void Lock ()
{
locked++;
}
public void UnLock ()
{
locked--;
if ((locked == 0) && needs_update)
update_handler ();
}
public bool IsContinuous {
get {
return false;
}
}
public TargetAddress StartAddress {
get {
throw new InvalidOperationException ();
}
}
public TargetAddress EndAddress {
get {
throw new InvalidOperationException ();
}
}
void update_ranges ()
{
ranges = new ArrayList ();
foreach (ISymbolTable symtab in symtabs) {
if (!symtab.IsLoaded || !symtab.HasRanges)
continue;
ranges.AddRange (symtab.SymbolRanges);
has_ranges = true;
}
ranges.Sort ();
}
public bool HasRanges {
get {
return has_ranges;
}
}
public ISymbolRange[] SymbolRanges {
get {
if (!has_ranges)
throw new InvalidOperationException ();
ISymbolRange[] retval = new ISymbolRange [ranges.Count];
ranges.CopyTo (retval, 0);
return retval;
}
}
public bool HasMethods {
get {
return true;
}
}
public Method[] Methods {
get {
ArrayList methods = new ArrayList ();
foreach (ISymbolTable symtab in symtabs) {
if (!symtab.IsLoaded || !symtab.HasMethods)
continue;
methods.AddRange (symtab.Methods);
}
Method[] retval = new Method [methods.Count];
methods.CopyTo (retval, 0);
return retval;
}
}
public Method Lookup (TargetAddress address)
{
foreach (ISymbolTable symtab in symtabs) {
if (!symtab.IsLoaded)
continue;
Method method = symtab.Lookup (address);
if (method != null)
return method;
}
return null;
}
public bool IsLoaded {
get {
return true;
}
}
void update_handler ()
{
if (in_update || (locked > 0)) {
needs_update = true;
return;
}
update_ranges ();
if (SymbolTableChanged != null)
SymbolTableChanged ();
}
public void UpdateSymbolTable ()
{
in_update = true;
foreach (ISymbolTable symtab in symtabs)
symtab.UpdateSymbolTable ();
in_update = false;
update_handler ();
}
public event SymbolTableChangedHandler SymbolTableChanged;
//
// ICollection
//
int ICollection.Count {
get {
return symtabs.Count;
}
}
bool ICollection.IsSynchronized {
get {
return false;
}
}
object ICollection.SyncRoot {
get {
throw new NotSupportedException ();
}
}
void ICollection.CopyTo (Array dest, int dest_idx)
{
symtabs.CopyTo (dest, dest_idx);
}
IEnumerator IEnumerable.GetEnumerator ()
{
return symtabs.GetEnumerator ();
}
}
}
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