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::ProcessHandle GetProcess() const OVERRIDE; 27 virtual int GetUniqueChildProcessId() const OVERRIDE; 28 virtual Type GetType() const OVERRIDE; 29 virtual int GetRoutingID() const OVERRIDE; 30 31 virtual bool ReportsCacheStats() const OVERRIDE; 32 virtual blink::WebCache::ResourceTypeStats GetWebCoreCacheStats() const 33 OVERRIDE; 34 virtual bool ReportsFPS() const OVERRIDE; 35 virtual float GetFPS() const OVERRIDE; 36 virtual bool ReportsV8MemoryStats() const OVERRIDE; 37 virtual size_t GetV8MemoryAllocated() const OVERRIDE; 38 virtual size_t GetV8MemoryUsed() const OVERRIDE; 39 40 // RenderResources are always inspectable. 41 virtual bool CanInspect() const OVERRIDE; 42 virtual void Inspect() const OVERRIDE; 43 44 // RenderResources always provide the network usage. 45 virtual bool SupportNetworkUsage() const OVERRIDE; 46 virtual void SetSupportNetworkUsage() OVERRIDE { } 47 48 virtual void Refresh() OVERRIDE; 49 50 virtual void NotifyResourceTypeStats( 51 const blink::WebCache::ResourceTypeStats& stats) OVERRIDE; 52 53 virtual void NotifyFPS(float fps) OVERRIDE; 54 55 virtual void NotifyV8HeapStats(size_t v8_memory_allocated, 56 size_t v8_memory_used) OVERRIDE; 57 58 content::RenderViewHost* render_view_host() const { 59 return render_view_host_; 60 } 61 62 private: 63 base::ProcessHandle process_; 64 int pid_; 65 int unique_process_id_; 66 67 // RenderViewHost we use to fetch stats. 68 content::RenderViewHost* render_view_host_; 69 // The stats_ field holds information about resource usage in the renderer 70 // process and so it is updated asynchronously by the Refresh() call. 71 blink::WebCache::ResourceTypeStats stats_; 72 // This flag is true if we are waiting for the renderer to report its stats. 73 bool pending_stats_update_; 74 75 // The fps_ field holds the renderer frames per second. 76 float fps_; 77 // This flag is true if we are waiting for the renderer to report its FPS. 78 bool pending_fps_update_; 79 80 // We do a similar dance to gather the V8 memory usage in a process. 81 size_t v8_memory_allocated_; 82 size_t v8_memory_used_; 83 bool pending_v8_memory_allocated_update_; 84 85 DISALLOW_COPY_AND_ASSIGN(RendererResource); 86 }; 87 88 } // namespace task_manager 89 90 #endif // CHROME_BROWSER_TASK_MANAGER_RENDERER_RESOURCE_H_ 91
