| // Copyright 2013 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/process/process_metrics.h" |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| #include <sys/param.h> |
| #include <sys/sysctl.h> |
| |
| #include "base/memory/ptr_util.h" |
| #include "base/process/process_metrics_iocounters.h" |
| |
| namespace base { |
| |
| // static |
| std::unique_ptr<ProcessMetrics> ProcessMetrics::CreateProcessMetrics( |
| ProcessHandle process) { |
| return WrapUnique(new ProcessMetrics(process)); |
| } |
| |
| bool ProcessMetrics::GetIOCounters(IoCounters* io_counters) const { |
| return false; |
| } |
| |
| static int GetProcessCPU(pid_t pid) { |
| struct kinfo_proc info; |
| size_t length; |
| int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, pid, |
| sizeof(struct kinfo_proc), 0 }; |
| |
| if (sysctl(mib, std::size(mib), NULL, &length, NULL, 0) < 0) |
| return -1; |
| |
| mib[5] = (length / sizeof(struct kinfo_proc)); |
| |
| if (sysctl(mib, std::size(mib), &info, &length, NULL, 0) < 0) |
| return 0; |
| |
| return info.p_pctcpu; |
| } |
| |
| double ProcessMetrics::GetPlatformIndependentCPUUsage() { |
| TimeTicks time = TimeTicks::Now(); |
| |
| if (last_cpu_time_.is_zero()) { |
| // First call, just set the last values. |
| last_cpu_time_ = time; |
| return 0; |
| } |
| |
| int cpu = GetProcessCPU(process_); |
| |
| last_cpu_time_ = time; |
| double percentage = static_cast<double>((cpu * 100.0) / FSCALE); |
| |
| return percentage; |
| } |
| |
| TimeDelta ProcessMetrics::GetCumulativeCPUUsage() { |
| NOTREACHED(); |
| return TimeDelta(); |
| } |
| |
| ProcessMetrics::ProcessMetrics(ProcessHandle process) |
| : process_(process), |
| last_cpu_(0) {} |
| |
| size_t GetSystemCommitCharge() { |
| int mib[] = { CTL_VM, VM_METER }; |
| int pagesize; |
| struct vmtotal vmtotal; |
| unsigned long mem_total, mem_free, mem_inactive; |
| size_t len = sizeof(vmtotal); |
| |
| if (sysctl(mib, std::size(mib), &vmtotal, &len, NULL, 0) < 0) |
| return 0; |
| |
| mem_total = vmtotal.t_vm; |
| mem_free = vmtotal.t_free; |
| mem_inactive = vmtotal.t_vm - vmtotal.t_avm; |
| |
| pagesize = getpagesize(); |
| |
| return mem_total - (mem_free*pagesize) - (mem_inactive*pagesize); |
| } |
| |
| } // namespace base |