2021-09-20 18:20:01 +02:00

97 lines
3.1 KiB
C#

/*
Copyright (C) 2014-2019 de4dot@gmail.com
This file is part of dnSpy
dnSpy is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
dnSpy is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
*/
using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using dnSpy.Contracts.Debugger;
using dnSpy.Contracts.Debugger.DotNet.Metadata.Internal;
namespace dnSpy.Debugger.DotNet.Metadata.Internal {
[Export(typeof(DbgRawMetadataService))]
sealed class DbgRawMetadataServiceImpl : DbgRawMetadataService {
sealed class RuntimeState : IDisposable {
public readonly object LockObj = new object();
public readonly Dictionary<ulong, DbgRawMetadataImpl> Dict = new Dictionary<ulong, DbgRawMetadataImpl>();
public readonly List<DbgRawMetadataImpl> OtherMetadata = new List<DbgRawMetadataImpl>();
public void Dispose() {
foreach (var kv in Dict)
kv.Value.ForceDispose();
Dict.Clear();
foreach (var m in OtherMetadata)
m.ForceDispose();
OtherMetadata.Clear();
}
}
public override DbgRawMetadata Create(DbgRuntime runtime, bool isFileLayout, ulong moduleAddress, int moduleSize) {
if (runtime is null)
throw new ArgumentNullException(nameof(runtime));
if (moduleAddress == 0)
throw new ArgumentOutOfRangeException(nameof(moduleAddress));
if (moduleSize <= 0)
throw new ArgumentOutOfRangeException(nameof(moduleSize));
var state = runtime.GetOrCreateData<RuntimeState>();
lock (state.LockObj) {
if (state.Dict.TryGetValue(moduleAddress, out var rawMd)) {
if (rawMd.TryAddRef() is not null) {
if (rawMd.IsFileLayout != isFileLayout || rawMd.Size != moduleSize) {
rawMd.Release();
throw new InvalidOperationException();
}
return rawMd;
}
state.Dict.Remove(moduleAddress);
}
rawMd = new DbgRawMetadataImpl(runtime.Process, isFileLayout, moduleAddress, moduleSize);
try {
state.Dict.Add(moduleAddress, rawMd);
}
catch {
rawMd.Release();
throw;
}
return rawMd;
}
}
public override DbgRawMetadata Create(DbgRuntime runtime, bool isFileLayout, byte[] moduleBytes) {
if (runtime is null)
throw new ArgumentNullException(nameof(runtime));
if (moduleBytes is null)
throw new ArgumentNullException(nameof(moduleBytes));
var state = runtime.GetOrCreateData<RuntimeState>();
lock (state.LockObj) {
var rawMd = new DbgRawMetadataImpl(moduleBytes, isFileLayout);
try {
state.OtherMetadata.Add(rawMd);
}
catch {
rawMd.Release();
throw;
}
return rawMd;
}
}
}
}