IndexedDB: Measure the total database open time.

content/browser/indexed_db/indexed_db_callbacks.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 "content/browser/indexed_db/indexed_db_callbacks.h"
 
 #include <algorithm>
 
 #include "base/guid.h"
+#include "base/metrics/histogram.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "content/browser/child_process_security_policy_impl.h"
 #include "content/browser/fileapi/fileapi_message_filter.h"
 #include "content/browser/indexed_db/indexed_db_blob_info.h"
 #include "content/browser/indexed_db/indexed_db_connection.h"
 #include "content/browser/indexed_db/indexed_db_context_impl.h"
 #include "content/browser/indexed_db/indexed_db_cursor.h"
 #include "content/browser/indexed_db/indexed_db_database_callbacks.h"
 #include "content/browser/indexed_db/indexed_db_database_error.h"
@@ skipping 64 matching lines @@
 }
 
 IndexedDBCallbacks::~IndexedDBCallbacks() {}
 
 void IndexedDBCallbacks::OnError(const IndexedDBDatabaseError& error) {
   DCHECK(dispatcher_host_.get());
 
   dispatcher_host_->Send(new IndexedDBMsg_CallbacksError(
       ipc_thread_id_, ipc_callbacks_id_, error.code(), error.message()));
   dispatcher_host_ = NULL;
+
+  if (!connection_open_start_time_.is_null()) {
+    UMA_HISTOGRAM_MEDIUM_TIMES(
+        "WebCore.IndexedDB.OpenTime.Error",
+        base::TimeTicks::Now() - connection_open_start_time_);
+    connection_open_start_time_ = base::TimeTicks();
+  }
 }
 
 void IndexedDBCallbacks::OnSuccess(const std::vector<base::string16>& value) {
   DCHECK(dispatcher_host_.get());
 
   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
   DCHECK_EQ(kNoTransaction, host_transaction_id_);
   DCHECK_EQ(kNoDatabase, ipc_database_id_);
   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
@@ skipping 15 matching lines @@
   DCHECK_EQ(kNoTransaction == host_transaction_id_,
             kNoDatabaseCallbacks == ipc_database_callbacks_id_);
   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 
   if (sent_blocked_)
     return;
 
   sent_blocked_ = true;
   dispatcher_host_->Send(new IndexedDBMsg_CallbacksIntBlocked(
       ipc_thread_id_, ipc_callbacks_id_, existing_version));
+
+  if (!connection_open_start_time_.is_null()) {
+    UMA_HISTOGRAM_MEDIUM_TIMES(
+        "WebCore.IndexedDB.OpenTime.Blocked",
+        base::TimeTicks::Now() - connection_open_start_time_);
+    connection_open_start_time_ = base::TimeTicks();
+  }
 }
 
 void IndexedDBCallbacks::OnDataLoss(blink::WebIDBDataLoss data_loss,
                                     std::string data_loss_message) {
   DCHECK_NE(blink::WebIDBDataLossNone, data_loss);
   data_loss_ = data_loss;
   data_loss_message_ = data_loss_message;
 }
 
 void IndexedDBCallbacks::OnUpgradeNeeded(
@@ skipping 16 matching lines @@
   IndexedDBMsg_CallbacksUpgradeNeeded_Params params;
   params.ipc_thread_id = ipc_thread_id_;
   params.ipc_callbacks_id = ipc_callbacks_id_;
   params.ipc_database_id = ipc_database_id;
   params.ipc_database_callbacks_id = ipc_database_callbacks_id_;
   params.old_version = old_version;
   params.idb_metadata = IndexedDBDispatcherHost::ConvertMetadata(metadata);
   params.data_loss = data_loss_;
   params.data_loss_message = data_loss_message_;
   dispatcher_host_->Send(new IndexedDBMsg_CallbacksUpgradeNeeded(params));
+
+  if (!connection_open_start_time_.is_null()) {
+    UMA_HISTOGRAM_MEDIUM_TIMES(
+        "WebCore.IndexedDB.OpenTime.UpgradeNeeded",
+        base::TimeTicks::Now() - connection_open_start_time_);
+    connection_open_start_time_ = base::TimeTicks();
+  }
 }
 
 void IndexedDBCallbacks::OnSuccess(scoped_ptr<IndexedDBConnection> connection,
                                    const IndexedDBDatabaseMetadata& metadata) {
   DCHECK(dispatcher_host_.get());
 
   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
   DCHECK_NE(kNoTransaction, host_transaction_id_);
   DCHECK_NE(ipc_database_id_ == kNoDatabase, !connection);
   DCHECK_NE(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 
   scoped_refptr<IndexedDBCallbacks> self(this);
 
   int32 ipc_object_id = kNoDatabase;
   // Only register if the connection was not previously sent in OnUpgradeNeeded.
   if (ipc_database_id_ == kNoDatabase) {
     ipc_object_id = dispatcher_host_->Add(
         connection.release(), ipc_thread_id_, origin_url_);
   }
 
   dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessIDBDatabase(
       ipc_thread_id_,
       ipc_callbacks_id_,
       ipc_database_callbacks_id_,
       ipc_object_id,
       IndexedDBDispatcherHost::ConvertMetadata(metadata)));
   dispatcher_host_ = NULL;
+
+  if (!connection_open_start_time_.is_null()) {
+    UMA_HISTOGRAM_MEDIUM_TIMES(
+        "WebCore.IndexedDB.OpenTime.Success",
+        base::TimeTicks::Now() - connection_open_start_time_);
+    connection_open_start_time_ = base::TimeTicks();
+  }
 }
 
 static std::string CreateBlobData(
     const IndexedDBBlobInfo& blob_info,
     scoped_refptr<IndexedDBDispatcherHost> dispatcher_host,
     webkit_blob::BlobStorageContext* blob_storage_context,
     base::TaskRunner* task_runner) {
   std::string uuid = blob_info.uuid();
   if (!uuid.empty()) {
     // We're sending back a live blob, not a reference into our backing store.
@@ skipping 370 matching lines @@
   DCHECK_EQ(kNoTransaction, host_transaction_id_);
   DCHECK_EQ(kNoDatabase, ipc_database_id_);
   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 
   dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessUndefined(
       ipc_thread_id_, ipc_callbacks_id_));
   dispatcher_host_ = NULL;
 }
 
+void IndexedDBCallbacks::SetConnectionOpenStartTime(
+    const base::TimeTicks& start_time) {
+  connection_open_start_time_ = start_time;
+}
+
 }  // namespace content