65 lines
1.6 KiB
C++
65 lines
1.6 KiB
C++
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/process/process_metrics.h"
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#include <mach/task.h>
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namespace base {
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namespace {
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bool GetTaskInfo(task_basic_info_64* task_info_data) {
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mach_msg_type_number_t count = TASK_BASIC_INFO_64_COUNT;
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kern_return_t kr = task_info(mach_task_self(),
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TASK_BASIC_INFO_64,
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reinterpret_cast<task_info_t>(task_info_data),
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&count);
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return kr == KERN_SUCCESS;
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}
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} // namespace
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ProcessMetrics::ProcessMetrics(ProcessHandle process) {}
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ProcessMetrics::~ProcessMetrics() {}
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// static
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ProcessMetrics* ProcessMetrics::CreateProcessMetrics(ProcessHandle process) {
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return new ProcessMetrics(process);
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}
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size_t ProcessMetrics::GetPagefileUsage() const {
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task_basic_info_64 task_info_data;
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if (!GetTaskInfo(&task_info_data))
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return 0;
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return task_info_data.virtual_size;
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}
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size_t ProcessMetrics::GetWorkingSetSize() const {
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task_basic_info_64 task_info_data;
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if (!GetTaskInfo(&task_info_data))
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return 0;
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return task_info_data.resident_size;
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}
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size_t GetMaxFds() {
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static const rlim_t kSystemDefaultMaxFds = 256;
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rlim_t max_fds;
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struct rlimit nofile;
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if (getrlimit(RLIMIT_NOFILE, &nofile)) {
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// Error case: Take a best guess.
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max_fds = kSystemDefaultMaxFds;
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} else {
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max_fds = nofile.rlim_cur;
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}
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if (max_fds > INT_MAX)
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max_fds = INT_MAX;
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return static_cast<size_t>(max_fds);
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}
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} // namespace base
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