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      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 #include "base/process/process_metrics.h"
      6 
      7 #include "base/values.h"
      8 
      9 namespace base {
     10 
     11 SystemMetrics::SystemMetrics() {
     12   committed_memory_ = 0;
     13 }
     14 
     15 SystemMetrics SystemMetrics::Sample() {
     16   SystemMetrics system_metrics;
     17 
     18   system_metrics.committed_memory_ = GetSystemCommitCharge();
     19 #if defined(OS_LINUX) || defined(OS_ANDROID)
     20   GetSystemMemoryInfo(&system_metrics.memory_info_);
     21   GetSystemDiskInfo(&system_metrics.disk_info_);
     22 #endif
     23 #if defined(OS_CHROMEOS)
     24   GetSwapInfo(&system_metrics.swap_info_);
     25 #endif
     26 
     27   return system_metrics;
     28 }
     29 
     30 scoped_ptr<Value> SystemMetrics::ToValue() const {
     31   scoped_ptr<DictionaryValue> res(new DictionaryValue());
     32 
     33   res->SetInteger("committed_memory", static_cast<int>(committed_memory_));
     34 #if defined(OS_LINUX) || defined(OS_ANDROID)
     35   res->Set("meminfo", memory_info_.ToValue().release());
     36   res->Set("diskinfo", disk_info_.ToValue().release());
     37 #endif
     38 #if defined(OS_CHROMEOS)
     39   res->Set("swapinfo", swap_info_.ToValue().release());
     40 #endif
     41 
     42   return res.PassAs<Value>();
     43 }
     44 
     45 double ProcessMetrics::GetPlatformIndependentCPUUsage() {
     46 #if defined(OS_WIN)
     47   return GetCPUUsage() * processor_count_;
     48 #else
     49   return GetCPUUsage();
     50 #endif
     51 }
     52 
     53 }  // namespace base
     54