base/process/process_metrics_freebsd.cc

   1 // Copyright (c) 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 <sys/sysctl.h>
   8 #include <sys/user.h>
   9 #include <unistd.h>
  10
  11 #include "base/sys_info.h"
  12
  13 namespace base {
  14
  15 ProcessMetrics::ProcessMetrics(ProcessHandle process)
  16     : process_(process),
  17       last_system_time_(0),
  18       last_cpu_(0) {
  19   processor_count_ = base::SysInfo::NumberOfProcessors();
  20 }
  21
  22 // static
  23 ProcessMetrics* ProcessMetrics::CreateProcessMetrics(ProcessHandle process) {
  24   return new ProcessMetrics(process);
  25 }
  26
  27 size_t ProcessMetrics::GetPagefileUsage() const {
  28   struct kinfo_proc info;
  29   int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process_ };
  30   size_t length = sizeof(info);
  31
  32   if (sysctl(mib, arraysize(mib), &info, &length, NULL, 0) < 0)
  33     return 0;
  34
  35   return info.ki_size;
  36 }
  37
  38 size_t ProcessMetrics::GetPeakPagefileUsage() const {
  39   return 0;
  40 }
  41
  42 size_t ProcessMetrics::GetWorkingSetSize() const {
  43   struct kinfo_proc info;
  44   int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process_ };
  45   size_t length = sizeof(info);
  46
  47   if (sysctl(mib, arraysize(mib), &info, &length, NULL, 0) < 0)
  48     return 0;
  49
  50   return info.ki_rssize * getpagesize();
  51 }
  52
  53 size_t ProcessMetrics::GetPeakWorkingSetSize() const {
  54   return 0;
  55 }
  56
  57 bool ProcessMetrics::GetMemoryBytes(size_t* private_bytes,
  58                                     size_t* shared_bytes) {
  59   WorkingSetKBytes ws_usage;
  60   if (!GetWorkingSetKBytes(&ws_usage))
  61     return false;
  62
  63   if (private_bytes)
  64     *private_bytes = ws_usage.priv << 10;
  65
  66   if (shared_bytes)
  67     *shared_bytes = ws_usage.shared * 1024;
  68
  69   return true;
  70 }
  71
  72 bool ProcessMetrics::GetWorkingSetKBytes(WorkingSetKBytes* ws_usage) const {
  73 // TODO(bapt) be sure we can't be precise
  74   size_t priv = GetWorkingSetSize();
  75   if (!priv)
  76     return false;
  77   ws_usage->priv = priv / 1024;
  78   ws_usage->shareable = 0;
  79   ws_usage->shared = 0;
  80
  81   return true;
  82 }
  83
  84 double ProcessMetrics::GetCPUUsage() {
  85   struct kinfo_proc info;
  86   int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process_ };
  87   size_t length = sizeof(info);
  88
  89   if (sysctl(mib, arraysize(mib), &info, &length, NULL, 0) < 0)
  90     return 0;
  91
  92   return (info.ki_pctcpu / FSCALE) * 100.0;
  93 }
  94
  95 bool ProcessMetrics::GetIOCounters(IoCounters* io_counters) const {
  96   return false;
  97 }
  98
  99 size_t GetSystemCommitCharge() {
 100   int mib[2], pagesize;
 101   unsigned long mem_total, mem_free, mem_inactive;
 102   size_t length = sizeof(mem_total);
 103
 104   if (sysctl(mib, arraysize(mib), &mem_total, &length, NULL, 0) < 0)
 105     return 0;
 106
 107   length = sizeof(mem_free);
 108   if (sysctlbyname("vm.stats.vm.v_free_count", &mem_free, &length, NULL, 0) < 0)
 109     return 0;
 110
 111   length = sizeof(mem_inactive);
 112   if (sysctlbyname("vm.stats.vm.v_inactive_count", &mem_inactive, &length,
 113       NULL, 0) < 0) {
 114     return 0;
 115   }
 116
 117   pagesize = getpagesize();
 118
 119   return mem_total - (mem_free*pagesize) - (mem_inactive*pagesize);
 120 }
 121
 122 }  // namespace base