| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "content/browser/memory/swap_metrics_driver_impl_mac.h" |
| |
| #include <mach/mach.h> |
| #include <mach/mach_vm.h> |
| #include <memory> |
| |
| #include "base/mac/mach_logging.h" |
| #include "base/memory/ptr_util.h" |
| #include "base/time/time.h" |
| |
| namespace content { |
| |
| // static |
| std::unique_ptr<SwapMetricsDriver> SwapMetricsDriver::Create( |
| std::unique_ptr<Delegate> delegate, |
| const base::TimeDelta update_interval) { |
| return base::WrapUnique<SwapMetricsDriver>( |
| new SwapMetricsDriverImplMac(std::move(delegate), update_interval)); |
| } |
| |
| SwapMetricsDriverImplMac::SwapMetricsDriverImplMac( |
| std::unique_ptr<Delegate> delegate, |
| const base::TimeDelta update_interval) |
| : SwapMetricsDriverImpl(std::move(delegate), update_interval), |
| host_(mach_host_self()) {} |
| |
| SwapMetricsDriverImplMac::~SwapMetricsDriverImplMac() = default; |
| |
| SwapMetricsDriver::SwapMetricsUpdateResult |
| SwapMetricsDriverImplMac::UpdateMetricsInternal(base::TimeDelta interval) { |
| vm_statistics64_data_t statistics; |
| mach_msg_type_number_t count = HOST_VM_INFO64_COUNT; |
| kern_return_t result = |
| host_statistics64(host_.get(), HOST_VM_INFO64, |
| reinterpret_cast<host_info64_t>(&statistics), &count); |
| if (result != KERN_SUCCESS) { |
| MACH_DLOG(WARNING, result) << "host_statistics64"; |
| return SwapMetricsDriver::SwapMetricsUpdateResult::kSwapMetricsUpdateFailed; |
| } |
| DCHECK_EQ(HOST_VM_INFO64_COUNT, count); |
| |
| uint64_t swapins = statistics.swapins - last_swapins_; |
| uint64_t swapouts = statistics.swapouts - last_swapouts_; |
| uint64_t decompressions = statistics.decompressions - last_decompressions_; |
| uint64_t compressions = statistics.compressions - last_compressions_; |
| last_swapins_ = statistics.swapins; |
| last_swapouts_ = statistics.swapouts; |
| last_decompressions_ = statistics.decompressions; |
| last_compressions_ = statistics.compressions; |
| |
| if (interval.is_zero()) |
| return SwapMetricsDriver::SwapMetricsUpdateResult:: |
| kSwapMetricsUpdateSuccess; |
| |
| delegate_->OnSwapInCount(swapins, interval); |
| delegate_->OnSwapOutCount(swapouts, interval); |
| delegate_->OnDecompressedPageCount(decompressions, interval); |
| delegate_->OnCompressedPageCount(compressions, interval); |
| |
| return SwapMetricsDriver::SwapMetricsUpdateResult::kSwapMetricsUpdateSuccess; |
| } |
| |
| } // namespace content |