Import Traceline, a Windows performance trace event logger.

tools/traceline/traceline/scripts/crit_sec.py

Index: tools/traceline/traceline/scripts/crit_sec.py
diff --git a/tools/traceline/traceline/scripts/crit_sec.py b/tools/traceline/traceline/scripts/crit_sec.py
new file mode 100755
index 0000000000000000000000000000000000000000..f43f50d3bdae8cee2e47e0ac8018b13954e9294e
--- /dev/null
+++ b/tools/traceline/traceline/scripts/crit_sec.py
@@ -0,0 +1,51 @@
+# Copyright (c) 2009 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import sys
+import os
+
+execfile(os.path.join(
+  os.path.dirname(os.path.join(os.path.curdir, __file__)),
+  'syscalls.py'))
+
+def parseEvents(z):
+  crits =  { }
+  calls = { }
+  for e in z:
+    if (e['eventtype'] == 'EVENT_TYPE_ENTER_CS' or
+        e['eventtype'] == 'EVENT_TYPE_TRYENTER_CS' or
+        e['eventtype'] == 'EVENT_TYPE_LEAVE_CS'):
+      cs = e['critical_section']
+      if not crits.has_key(cs):
+        crits[cs] = [ ]
+      crits[cs].append(e)
+
+#  for cs, es in crits.iteritems():
+#    print 'cs: 0x%08x' % cs
+#    for e in es:
+#      print '  0x%08x - %s - %f' % (e['thread'], e['eventtype'], e['ms'])
+
+  for cs, es in crits.iteritems():
+    print 'cs: 0x%08x' % cs
+
+    tid_stack = [ ]
+    for e in es:
+      if e['eventtype'] == 'EVENT_TYPE_ENTER_CS':
+        tid_stack.append(e)
+      elif e['eventtype'] == 'EVENT_TYPE_TRYENTER_CS':
+        if e['retval'] != 0:
+          tid_stack.append(e)
+      elif e['eventtype'] == 'EVENT_TYPE_LEAVE_CS':
+        if not tid_stack:
+          raise repr(e)
+        tid = tid_stack.pop()
+        if tid['thread'] != e['thread']:
+          raise repr(tid) + '--' + repr(e)
+
+    # Critical section left locked?
+    if tid_stack:
+      #raise repr(tid_stack)
+      pass
+
+execfile(sys.argv[1])