Instrument SpdySessionPool using MemoryDumpProvider

net/spdy/spdy_session.cc

 // Copyright (c) 2012 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.
 
 #include "net/spdy/spdy_session.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/single_thread_task_runner.h"
 #include "base/stl_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/time/time.h"
+#include "base/trace_event/memory_allocator_dump.h"
+#include "base/trace_event/process_memory_dump.h"
 #include "base/trace_event/trace_event.h"
 #include "base/values.h"
 #include "crypto/ec_private_key.h"
 #include "crypto/ec_signature_creator.h"
 #include "net/base/proxy_delegate.h"
 #include "net/cert/asn1_util.h"
 #include "net/cert/cert_verify_result.h"
 #include "net/cert/ct_policy_status.h"
 #include "net/http/http_log_util.h"
 #include "net/http/http_network_session.h"
@@ skipping 926 matching lines @@
 bool SpdySession::CloseOneIdleConnection() {
   CHECK(!in_io_loop_);
   DCHECK(pool_);
   if (active_streams_.empty()) {
     DoDrainSession(ERR_CONNECTION_CLOSED, "Closing idle connection.");
   }
   // Return false as the socket wasn't immediately closed.
   return false;
 }
 
+void SpdySession::DumpMemoryStats(
+    base::trace_event::ProcessMemoryDump* pmd,
+    const std::string& parent_absolute_name) const {
+  std::string name =
+      base::StringPrintf("%s/session_%p", parent_absolute_name.c_str(), this);
+  base::trace_event::MemoryAllocatorDump* session_dump =
+      pmd->CreateAllocatorDump(name);
+  session_dump->AddString("active", "", is_active() ? "1" : "0");
+  connection_->DumpMemoryStats(pmd, name);
+}
+
 void SpdySession::EnqueueStreamWrite(
     const base::WeakPtr<SpdyStream>& stream,
     SpdyFrameType frame_type,
     std::unique_ptr<SpdyBufferProducer> producer) {
   DCHECK(frame_type == HEADERS || frame_type == DATA);
   EnqueueWrite(stream->priority(), frame_type, std::move(producer), stream);
 }
 
 std::unique_ptr<SpdySerializedFrame> SpdySession::CreateHeaders(
     SpdyStreamId stream_id,
@@ skipping 2011 matching lines @@
     if (!queue->empty()) {
       SpdyStreamId stream_id = queue->front();
       queue->pop_front();
       return stream_id;
     }
   }
   return 0;
 }
 
 }  // namespace net