public void EnumerateAllPathCancel()
{
using DataTarget dataTarget = TestTargets.GCRoot.LoadFullDump();
using ClrRuntime runtime = dataTarget.ClrVersions.Single().CreateRuntime();
ClrHeap heap = runtime.Heap;
GCRoot gcroot = new GCRoot(heap);
CancellationTokenSource cancelSource = new CancellationTokenSource();
cancelSource.Cancel();
GetKnownSourceAndTarget(runtime.Heap, out ulong source, out ulong target);
Assert.Throws <OperationCanceledException>(() => gcroot.EnumerateAllPaths(source, target, false, cancelSource.Token).ToArray());
}
private void FindAllPathsImpl(GCRoot gcroot)
{
ClrHeap heap = gcroot.Heap;
GetKnownSourceAndTarget(heap, out ulong source, out ulong target);
LinkedList <ClrObject>[] paths = gcroot.EnumerateAllPaths(source, target, false, CancellationToken.None).ToArray();
// There are exactly three paths to the object in the test target
Assert.Equal(3, paths.Length);
foreach (LinkedList <ClrObject> path in paths)
{
AssertPathIsCorrect(heap, path.ToImmutableArray(), source, target);
}
}
public void FindAllPaths()
{
using DataTarget dataTarget = TestTargets.GCRoot.LoadFullDump();
using ClrRuntime runtime = dataTarget.ClrVersions.Single().CreateRuntime();
ClrHeap heap = runtime.Heap;
GCRoot gcroot = new GCRoot(heap);
GetKnownSourceAndTarget(heap, out ulong source, out ulong target);
LinkedList <ClrObject>[] paths = gcroot.EnumerateAllPaths(source, target, false, CancellationToken.None).ToArray();
// There are exactly three paths to the object in the test target
Assert.Equal(3, paths.Length);
foreach (LinkedList <ClrObject> path in paths)
{
AssertPathIsCorrect(heap, path.ToImmutableArray(), source, target);
}
}
public void EnumerateAllPathshCancel()
{
using (DataTarget dataTarget = TestTargets.GCRoot.LoadFullDump())
{
ClrRuntime runtime = dataTarget.ClrVersions.Single().CreateRuntime();
ClrHeap heap = runtime.Heap;
heap.StackwalkPolicy = ClrRootStackwalkPolicy.SkipStack;
GCRoot gcroot = new GCRoot(runtime.Heap);
CancellationTokenSource cancelSource = new CancellationTokenSource();
cancelSource.Cancel();
GetKnownSourceAndTarget(runtime.Heap, out ulong source, out ulong target);
try
{
gcroot.EnumerateAllPaths(source, target, false, cancelSource.Token).ToArray();
Assert.Fail("Should have been cancelled!");
}
catch (OperationCanceledException)
{
}
}
}
/// <summary>
/// Returns the path from the start object to the end object (or null if no such path exists).
/// </summary>
/// <param name="source">The initial object to start the search from.</param>
/// <param name="target">The object we are searching for.</param>
/// <param name="unique">Whether to only enumerate fully unique paths.</param>
/// <param name="cancelToken">A cancellation token to stop enumeration.</param>
/// <returns>A path from 'source' to 'target' if one exists, null if one does not.</returns>
/// <inheritdoc />
public IEnumerable <IList <IClrObject> > EnumerateAllPaths(ulong source, ulong target, bool unique,
CancellationToken cancelToken) =>
Root.EnumerateAllPaths(source, target, unique, cancelToken)
.Select(ll => ll.Select(Converter.Convert).ToList());
