1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_TASK_MANAGER_RENDERER_RESOURCE_H_ 6 #define CHROME_BROWSER_TASK_MANAGER_RENDERER_RESOURCE_H_ 7 8 #include "base/basictypes.h" 9 #include "chrome/browser/task_manager/resource_provider.h" 10 11 namespace content { 12 class RenderViewHost; 13 } 14 15 namespace task_manager { 16 17 // Base class for various types of render process resources that provides common 18 // functionality like stats tracking. 19 class RendererResource : public Resource { 20 public: 21 RendererResource(base::ProcessHandle process, 22 content::RenderViewHost* render_view_host); 23 virtual ~RendererResource(); 24 25 // Resource methods: 26 virtual base::string16 GetProfileName() const OVERRIDE; 27 virtual base::ProcessHandle GetProcess() const OVERRIDE; 28 virtual int GetUniqueChildProcessId() const OVERRIDE; 29 virtual Type GetType() const OVERRIDE; 30 virtual int GetRoutingID() const OVERRIDE; 31 32 virtual bool ReportsCacheStats() const OVERRIDE; 33 virtual blink::WebCache::ResourceTypeStats GetWebCoreCacheStats() const 34 OVERRIDE; 35 virtual bool ReportsV8MemoryStats() const OVERRIDE; 36 virtual size_t GetV8MemoryAllocated() const OVERRIDE; 37 virtual size_t GetV8MemoryUsed() const OVERRIDE; 38 39 // RenderResources always provide the network usage. 40 virtual bool SupportNetworkUsage() const OVERRIDE; SetSupportNetworkUsage()41 virtual void SetSupportNetworkUsage() OVERRIDE { } 42 43 virtual void Refresh() OVERRIDE; 44 45 virtual void NotifyResourceTypeStats( 46 const blink::WebCache::ResourceTypeStats& stats) OVERRIDE; 47 48 virtual void NotifyV8HeapStats(size_t v8_memory_allocated, 49 size_t v8_memory_used) OVERRIDE; 50 render_view_host()51 content::RenderViewHost* render_view_host() const { 52 return render_view_host_; 53 } 54 55 private: 56 base::ProcessHandle process_; 57 int pid_; 58 int unique_process_id_; 59 60 // RenderViewHost we use to fetch stats. 61 content::RenderViewHost* render_view_host_; 62 // The stats_ field holds information about resource usage in the renderer 63 // process and so it is updated asynchronously by the Refresh() call. 64 blink::WebCache::ResourceTypeStats stats_; 65 // This flag is true if we are waiting for the renderer to report its stats. 66 bool pending_stats_update_; 67 68 // We do a similar dance to gather the V8 memory usage in a process. 69 size_t v8_memory_allocated_; 70 size_t v8_memory_used_; 71 bool pending_v8_memory_allocated_update_; 72 73 DISALLOW_COPY_AND_ASSIGN(RendererResource); 74 }; 75 76 } // namespace task_manager 77 78 #endif // CHROME_BROWSER_TASK_MANAGER_RENDERER_RESOURCE_H_ 79