SPDY - implement greedy approach to read all the data and process it

net/spdy/spdy_session_test_util.h

+// Copyright (c) 2013 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.
+
+#ifndef NET_SPDY_SPDY_SESSION_TEST_UTIL_H_
+#define NET_SPDY_SPDY_SESSION_TEST_UTIL_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/message_loop.h"
+#include "base/pending_task.h"
+
+namespace net {
+
+// An object of this type intercepts the completion of all tasks on
+// MessageLoop::current() and checks how many tasks posted from the given
+// |file_name| (for example, spdy_session.cc) and |function_name| (for example,
+// DoRead) are completed.

[Ryan Sleevi, 2013/02/07 02:43:50]

// SpdySessionTestTaskObserver is a MessageLoop::TaskObserver
// that monitors the completion of all tasks executed by the
// current MessageLoop, recording the number of tasks that
// refer to a specific function and filename.

[ramant (doing other things), 2013/02/07 20:03:55]

Done.

+class SpdySessionTestTaskObserver : public MessageLoop::TaskObserver {
+ public:
+  // |file_name| and |function_name| specify the names of file and function from
+  // which any tasks that are posted, are observed.
+  SpdySessionTestTaskObserver(const std::string& file_name,

[Ryan Sleevi, 2013/02/07 02:43:50]

// Creates a SpdySessionTaskObserver that will record all
// tasks that are executed that were posted by the function
// named by |function_name|, located in the file |file_name|.
//
// Example:
//  file_name = "src/net/base/foo.cc"
//  function = "DoFoo"

[ramant (doing other things), 2013/02/07 20:03:55]

Done.

+                              const std::string& function_name);
+  virtual ~SpdySessionTestTaskObserver();
+
+  // Implements MessageLoop::TaskObserver.
+  virtual void WillProcessTask(const base::PendingTask& pending_task) OVERRIDE;
+  virtual void DidProcessTask(const base::PendingTask& pending_task) OVERRIDE;
+
+  // Returns number of times tasks posted from the given |function_name| and
+  // |file_name| have been completed.

[Ryan Sleevi, 2013/02/07 02:43:50]

// Returns the number of tasks posted by the given function and file.

Note: posted_count() makes it seem like you're observing the will-execute count
(posted) - but you're not, you're measuring the did-execute count. Perhaps
rename it as "executed_count"?

Additionally, Chromium style (
http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml?showone=Intege...
) has a preference for integers for things that will 'not be too big, e.g., loop
counters'. While not a loop counter, this does seem to apply here.

[ramant (doing other things), 2013/02/07 20:03:55]

Done.

+  uint32 posted_count() const { return posted_count_; }
+
+ private:
+  uint32 posted_count_;
+  std::string file_name_;
+  std::string function_name_;
+};
+
+}  // namespace net
+
+#endif  // NET_SPDY_SPDY_SESSION_TEST_UTIL_H_