-
Notifications
You must be signed in to change notification settings - Fork 4
/
DiffViewer.cs
528 lines (420 loc) · 19.6 KB
/
DiffViewer.cs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
/*
The contents of this file are subject to the Mozilla Public License
Version 1.1 (the "License"); you may not use this file except in
compliance with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/
Software distributed under the License is distributed on an "AS IS"
basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
License for the specific language governing rights and limitations
under the License.
The Original Code is Windows Heap Profiler Frontend.
The Initial Developer of the Original Code is Mozilla Corporation.
Original Author: K. Gadd ([email protected])
*/
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Windows.Forms;
using Squared.Task;
using System.IO;
using System.Text.RegularExpressions;
using Squared.Util;
namespace HeapProfiler {
public partial class DiffViewer : TaskForm {
public NameTable Modules = new NameTable();
public NameTable FunctionNames = new NameTable();
public List<DeltaInfo> Deltas = new List<DeltaInfo>();
public List<DeltaInfo> FilteredDeltas = null;
public StackGraph StackGraph = null;
public GraphKeyType StackGraphKeyType = GraphKeyType.None;
public List<DeltaInfo> ListItems = new List<DeltaInfo>();
protected IFuture PendingLoad = null;
protected Pair<int> PendingLoadPair = new Pair<int>(-1, -1);
protected HeapRecording Instance = null;
protected IFuture PendingRefresh = null;
protected Pair<int> CurrentPair = new Pair<int>(-1, -1);
protected string Filename;
protected Regex FunctionFilter = null;
protected StringFormat ListFormat;
protected bool Updating = false;
public DiffViewer (TaskScheduler scheduler, HeapRecording instance)
: base (scheduler) {
InitializeComponent();
ListFormat = new StringFormat {
Trimming = StringTrimming.None,
FormatFlags = StringFormatFlags.NoWrap | StringFormatFlags.FitBlackBox
};
Timeline.ItemValueGetter = GetBytesTotal;
Timeline.ItemValueFormatter = MainWindow.FormatSizeBytes;
Instance = instance;
if (Instance != null) {
Timeline.Items = Instance.Snapshots;
Instance.TracebacksFiltered += Instance_TracebacksFiltered;
ViewHistogramByModuleMenu.Enabled = ViewHistogramByFunctionMenu.Enabled = true;
ViewHistogramBySourceFolderMenu.Enabled = ViewHistogramBySourceFileMenu.Enabled = true;
ViewHistogramByNamespaceMenu.Enabled = ViewTreemapMenu.Enabled = true;
} else {
Timeline.Visible = false;
MainSplit.Height += Timeline.Bottom - MainSplit.Bottom;
ViewHistogramByModuleMenu.Enabled = ViewHistogramByFunctionMenu.Enabled = false;
ViewHistogramBySourceFolderMenu.Enabled = ViewHistogramBySourceFileMenu.Enabled = false;
ViewHistogramByNamespaceMenu.Enabled = ViewTreemapMenu.Enabled = false;
}
}
void Instance_TracebacksFiltered (object sender, EventArgs e) {
SetBusy(true);
Enabled = false;
Start(ReloadTracebacks());
}
IEnumerator<object> ReloadTracebacks () {
var keys = from delta in Deltas select delta.TracebackID;
var fTracebacks = Instance.Database.FilteredTracebacks.CascadingSelect(
new[] { Instance.Database.Tracebacks },
keys
);
yield return fTracebacks;
var resolvedTracebacks = new Dictionary<UInt32, TracebackInfo>();
var functionNames = new NameTable();
yield return Instance.ResolveTracebackSymbols(
fTracebacks.Result, resolvedTracebacks, functionNames
);
foreach (var delta in Deltas)
delta.Traceback = resolvedTracebacks[delta.TracebackID];
FunctionNames = functionNames;
DoneReloadingTracebacks();
}
void DoneReloadingTracebacks () {
DeltaList.Invalidate();
DeltaHistogram.Invalidate();
GraphHistogram.Invalidate();
SetBusy(false);
Enabled = true;
}
public DiffViewer (TaskScheduler scheduler)
: this(scheduler, null) {
}
public long GetBytesTotal (HeapSnapshotInfo item) {
return (long)(item.BytesTotal);
}
protected void SetBusy (bool busy) {
UseWaitCursor = Updating = busy;
}
public IEnumerator<object> LoadRange (Pair<int> range) {
PendingLoadPair = range;
LoadingPanel.Text = "Generating diff...";
LoadingProgress.Value = 0;
LoadingProgress.Style = ProgressBarStyle.Marquee;
MainMenuStrip.Enabled = false;
LoadingPanel.Visible = true;
MainSplit.Visible = false;
UseWaitCursor = true;
var s1 = Instance.Snapshots[range.First];
var s2 = Instance.Snapshots[range.Second];
Timeline.Selection = range;
var f = Start(Instance.DiffSnapshots(s1, s2));
using (f)
yield return f;
var filename = f.Result as string;
if (filename != null) {
f = Start(LoadDiff(filename));
using (f)
yield return f;
} else {
DiffLoaded(f.Result as HeapDiff, "unknown");
}
PendingLoadPair = Pair.New(-1, -1);
CurrentPair = range;
Text = "Diff Viewer - " + String.Format("{0} - {1}", s1.Timestamp.ToLongTimeString(), s2.Timestamp.ToLongTimeString());
}
protected void DiffLoaded (HeapDiff diff, string filename) {
Modules = diff.Modules;
FunctionNames = diff.FunctionNames;
Deltas = diff.Deltas;
FilteredDeltas = null;
StackGraph = null;
TracebackFilter.AutoCompleteItems = FunctionNames;
Text = "Diff Viewer - " + filename;
Filename = filename;
RefreshModules();
if (PendingRefresh != null)
PendingRefresh.Dispose();
PendingRefresh = Start(RefreshDeltas());
MainMenuStrip.Enabled = true;
LoadingPanel.Visible = false;
MainSplit.Visible = true;
Timeline.Enabled = true;
UseWaitCursor = false;
}
public IEnumerator<object> LoadDiff (string filename) {
var progress = new CallbackProgressListener {
OnSetStatus = (status) => {
LoadingPanel.Text = status;
},
OnSetMaximum = (maximum) => {
if (LoadingProgress.Maximum != maximum)
LoadingProgress.Maximum = maximum;
},
OnSetProgress = (value) => {
if (value.HasValue) {
var v = value.Value;
if (LoadingProgress.Style != ProgressBarStyle.Continuous)
LoadingProgress.Style = ProgressBarStyle.Continuous;
LoadingProgress.Value = Math.Min(v + 1, LoadingProgress.Maximum);
LoadingProgress.Value = v;
} else {
if (LoadingProgress.Style != ProgressBarStyle.Marquee)
LoadingProgress.Style = ProgressBarStyle.Marquee;
}
}
};
var rtc = new RunToCompletion<HeapDiff>(
HeapDiff.FromFile(filename, progress)
);
using (rtc)
yield return rtc;
DiffLoaded(rtc.Result, filename);
}
public void RefreshModules () {
if (Updating)
return;
SetBusy(true);
ModuleList.Items = Modules.Keys;
SetBusy(false);
}
public IEnumerator<object> RefreshGraph () {
try {
if (Updating)
yield break;
SetBusy(true);
yield return GenerateNewGraph(FilteredDeltas, StackGraphKeyType);
} finally {
SetBusy(false);
}
}
public IEnumerator<object> RefreshDeltas () {
try {
if (Updating)
yield break;
SetBusy(true);
Future<int> fTotalBytes = new Future<int>(),
fTotalAllocs = new Future<int>(),
fMax = new Future<int>();
var newListItems = new List<DeltaInfo>();
var moduleList = ModuleList;
var deltas = Deltas;
var functionFilter = FunctionFilter;
bool useModuleFilter = moduleList.SelectedItems.Count > 0;
yield return Future.RunInThread(() => {
int max = -int.MaxValue;
int totalBytes = 0, totalAllocs = 0;
foreach (var delta in deltas) {
if (functionFilter != null) {
bool matched = false;
foreach (var functionName in delta.Traceback.Functions) {
if (functionFilter.IsMatch(functionName)) {
matched = true;
break;
}
}
if (!matched)
continue;
}
bool filteredOut = false;
if (useModuleFilter) {
filteredOut = true;
foreach (var module in delta.Traceback.Modules) {
filteredOut &= !moduleList.SelectedItems.Contains(module);
if (!filteredOut)
break;
}
}
if (!filteredOut) {
newListItems.Add(delta);
totalBytes += delta.BytesDelta;
totalAllocs += delta.CountDelta.GetValueOrDefault(0);
max = Math.Max(max, delta.BytesDelta);
}
}
max = Math.Max(max, Math.Abs(totalBytes));
fTotalBytes.Complete(totalBytes);
fTotalAllocs.Complete(totalAllocs);
fMax.Complete(max);
});
StatusLabel.Text = String.Format("Showing {0} out of {1} item(s)", newListItems.Count, deltas.Count);
AllocationTotals.Text = String.Format("Delta bytes: {0} Delta allocations: {1}", FileSize.Format(fTotalBytes.Result), fTotalAllocs.Result);
DeltaHistogram.Items = DeltaList.Items = FilteredDeltas = newListItems;
if (newListItems.Count > 0)
GraphHistogram.Maximum = DeltaHistogram.Maximum = fMax.Result;
else
GraphHistogram.Maximum = DeltaHistogram.Maximum = 1024;
GraphHistogram.TotalDelta = DeltaHistogram.TotalDelta = fTotalBytes.Result;
DeltaList.Invalidate();
DeltaHistogram.Invalidate();
if ((Instance != null) && ((GraphTreemap.Visible) || (GraphHistogram.Visible)) && (StackGraphKeyType != GraphKeyType.None))
yield return GenerateNewGraph(newListItems, StackGraphKeyType);
} finally {
SetBusy(false);
}
}
protected IEnumerator<object> GenerateNewGraph (List<DeltaInfo> newListItems, GraphKeyType keyType) {
var newGraph = new StackGraph(keyType);
yield return newGraph.Build(Instance, newListItems);
StackGraph = newGraph;
GraphHistogram.Items = StackGraph.Functions.OrderedItems.ToArray();
GraphTreemap.Items = StackGraph.OrderedItems.ToArray();
GraphHistogram.Invalidate();
GraphTreemap.Refresh();
}
private void DiffViewer_Shown (object sender, EventArgs e) {
UseWaitCursor = true;
}
private void DiffViewer_FormClosed (object sender, FormClosedEventArgs e) {
Dispose();
}
private void SaveDiffMenu_Click (object sender, EventArgs e) {
using (var dialog = new SaveFileDialog()) {
dialog.Title = "Save Diff";
dialog.Filter = "Heap Diffs|*.heapdiff";
dialog.AddExtension = true;
dialog.CheckPathExists = true;
dialog.DefaultExt = ".heapdiff";
if (dialog.ShowDialog(this) != System.Windows.Forms.DialogResult.OK)
return;
File.Copy(Filename, dialog.FileName, true);
Filename = dialog.FileName;
Text = "Diff Viewer - " + Filename;
}
}
private void CloseMenu_Click (object sender, EventArgs e) {
Close();
}
private void TracebackFilter_FilterChanging (object sender, FilterChangingEventArgs e) {
if (e.Filter.Trim().Length == 0)
return;
Regex regex;
try {
regex = MainWindow.FilterToRegex(e.Filter);
} catch {
e.SetValid(false);
return;
}
foreach (var name in FunctionNames) {
if (regex.IsMatch(name)) {
e.SetValid(true);
return;
}
}
e.SetValid(false);
}
private void TracebackFilter_FilterChanged (object sender, EventArgs e) {
var filter = MainWindow.FilterToRegex(TracebackFilter.Filter);
GraphHistogram.FunctionFilter = DeltaHistogram.FunctionFilter = DeltaList.FunctionFilter = FunctionFilter = filter;
if (PendingRefresh != null)
PendingRefresh.Dispose();
PendingRefresh = Start(RefreshDeltas());
}
protected void SetGraphHistogramVisible (bool visible) {
GraphHistogram.Visible = visible;
ViewHistogramByFunctionMenu.Checked = (visible) && (StackGraphKeyType == GraphKeyType.Function);
ViewHistogramByNamespaceMenu.Checked = (visible) && (StackGraphKeyType == GraphKeyType.Namespace);
ViewHistogramByModuleMenu.Checked = (visible) && (StackGraphKeyType == GraphKeyType.Module);
ViewHistogramBySourceFileMenu.Checked = (visible) && (StackGraphKeyType == GraphKeyType.SourceFile);
ViewHistogramBySourceFolderMenu.Checked = (visible) && (StackGraphKeyType == GraphKeyType.SourceFolder);
}
protected void SetGraphTreemapVisible (bool visible) {
GraphTreemap.Visible = visible;
ViewTreemapByFunctionMenu.Checked = (visible) && (StackGraphKeyType == GraphKeyType.Function);
ViewTreemapByNamespaceMenu.Checked = (visible) && (StackGraphKeyType == GraphKeyType.Namespace);
ViewTreemapByModuleMenu.Checked = (visible) && (StackGraphKeyType == GraphKeyType.Module);
ViewTreemapBySourceFileMenu.Checked = (visible) && (StackGraphKeyType == GraphKeyType.SourceFile);
ViewTreemapBySourceFolderMenu.Checked = (visible) && (StackGraphKeyType == GraphKeyType.SourceFolder);
}
protected void SetGraphKeyType (GraphKeyType keyType) {
if (keyType != StackGraphKeyType) {
StackGraphKeyType = keyType;
GraphHistogram.Items = GraphTreemap.Items = new StackGraphNode[0];
GraphHistogram.Invalidate();
GraphTreemap.Invalidate();
if (PendingRefresh != null)
PendingRefresh.Dispose();
PendingRefresh = Start(RefreshGraph());
}
}
protected void ShowGraphHistogram (GraphKeyType keyType) {
DeltaHistogram.Visible = ViewHistogramByTracebackMenu.Checked = false;
DeltaList.Visible = ViewListMenu.Checked = false;
SetGraphKeyType(keyType);
SetGraphHistogramVisible(true);
SetGraphTreemapVisible(false);
}
protected void ShowGraphTreemap (GraphKeyType keyType) {
DeltaHistogram.Visible = ViewHistogramByTracebackMenu.Checked = false;
DeltaList.Visible = ViewListMenu.Checked = false;
SetGraphKeyType(keyType);
SetGraphHistogramVisible(false);
SetGraphTreemapVisible(true);
}
private void ViewListMenu_Click (object sender, EventArgs e) {
DeltaHistogram.Visible = ViewHistogramByTracebackMenu.Checked = false;
DeltaList.Visible = ViewListMenu.Checked = true;
SetGraphHistogramVisible(false);
SetGraphTreemapVisible(false);
}
private void Timeline_RangeChanged (object sender, EventArgs e) {
var pair = Timeline.Selection;
if (pair.CompareTo(PendingLoadPair) != 0) {
if (PendingLoad != null) {
PendingLoad.Dispose();
PendingLoad = null;
PendingLoadPair = Pair.New(-1, -1);
}
} else {
return;
}
if (pair.CompareTo(CurrentPair) != 0)
PendingLoad = Start(LoadRange(pair));
}
private void ModuleList_FilterChanged (object sender, EventArgs e) {
if (PendingRefresh != null)
PendingRefresh.Dispose();
PendingRefresh = Start(RefreshDeltas());
}
private void ViewHistogramByTracebackMenu_Click (object sender, EventArgs e) {
DeltaList.Visible = ViewListMenu.Checked = false;
DeltaHistogram.Visible = ViewHistogramByTracebackMenu.Checked = true;
SetGraphHistogramVisible(false);
SetGraphTreemapVisible(false);
}
private void ViewHistogramByFunctionMenu_Click (object sender, EventArgs e) {
ShowGraphHistogram(GraphKeyType.Function);
}
private void ViewHistogramByNamespaceMenu_Click (object sender, EventArgs e) {
ShowGraphHistogram(GraphKeyType.Namespace);
}
private void ViewHistogramByModuleMenu_Click (object sender, EventArgs e) {
ShowGraphHistogram(GraphKeyType.Module);
}
private void ViewHistogramBySourceFileMenu_Click (object sender, EventArgs e) {
ShowGraphHistogram(GraphKeyType.SourceFile);
}
private void ViewHistogramBySourceFolderMenu_Click (object sender, EventArgs e) {
ShowGraphHistogram(GraphKeyType.SourceFolder);
}
private void ViewTreemapByFunctionMenu_Click (object sender, EventArgs e) {
ShowGraphTreemap(GraphKeyType.Function);
}
private void ViewTreemapByNamespaceMenu_Click (object sender, EventArgs e) {
ShowGraphTreemap(GraphKeyType.Namespace);
}
private void ViewTreemapByModuleMenu_Click (object sender, EventArgs e) {
ShowGraphTreemap(GraphKeyType.Module);
}
private void ViewTreemapBySourceFileMenu_Click (object sender, EventArgs e) {
ShowGraphTreemap(GraphKeyType.SourceFile);
}
private void ViewTreemapBySourceFolderMenu_Click (object sender, EventArgs e) {
ShowGraphTreemap(GraphKeyType.SourceFolder);
}
}
}