mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-28 08:16:09 +03:00
128 lines
3.4 KiB
C++
128 lines
3.4 KiB
C++
// Copyright (c) 2013 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 "base/process/process_metrics.h"
|
|
|
|
#include <limits.h>
|
|
#include <mach/task.h>
|
|
#include <stddef.h>
|
|
|
|
#include "base/logging.h"
|
|
#include "base/mac/scoped_mach_port.h"
|
|
#include "base/memory/ptr_util.h"
|
|
#include "base/numerics/safe_conversions.h"
|
|
|
|
namespace base {
|
|
|
|
namespace {
|
|
|
|
bool GetTaskInfo(task_basic_info_64* task_info_data) {
|
|
mach_msg_type_number_t count = TASK_BASIC_INFO_64_COUNT;
|
|
kern_return_t kr = task_info(mach_task_self(),
|
|
TASK_BASIC_INFO_64,
|
|
reinterpret_cast<task_info_t>(task_info_data),
|
|
&count);
|
|
return kr == KERN_SUCCESS;
|
|
}
|
|
|
|
} // namespace
|
|
|
|
ProcessMetrics::ProcessMetrics(ProcessHandle process) {}
|
|
|
|
ProcessMetrics::~ProcessMetrics() {}
|
|
|
|
// static
|
|
std::unique_ptr<ProcessMetrics> ProcessMetrics::CreateProcessMetrics(
|
|
ProcessHandle process) {
|
|
return WrapUnique(new ProcessMetrics(process));
|
|
}
|
|
|
|
double ProcessMetrics::GetPlatformIndependentCPUUsage() {
|
|
NOTIMPLEMENTED();
|
|
return 0;
|
|
}
|
|
|
|
size_t ProcessMetrics::GetPagefileUsage() const {
|
|
task_basic_info_64 task_info_data;
|
|
if (!GetTaskInfo(&task_info_data))
|
|
return 0;
|
|
return task_info_data.virtual_size;
|
|
}
|
|
|
|
size_t ProcessMetrics::GetWorkingSetSize() const {
|
|
task_basic_info_64 task_info_data;
|
|
if (!GetTaskInfo(&task_info_data))
|
|
return 0;
|
|
return task_info_data.resident_size;
|
|
}
|
|
|
|
size_t GetMaxFds() {
|
|
static const rlim_t kSystemDefaultMaxFds = 256;
|
|
rlim_t max_fds;
|
|
struct rlimit nofile;
|
|
if (getrlimit(RLIMIT_NOFILE, &nofile)) {
|
|
// Error case: Take a best guess.
|
|
max_fds = kSystemDefaultMaxFds;
|
|
} else {
|
|
max_fds = nofile.rlim_cur;
|
|
}
|
|
|
|
if (max_fds > INT_MAX)
|
|
max_fds = INT_MAX;
|
|
|
|
return static_cast<size_t>(max_fds);
|
|
}
|
|
|
|
void SetFdLimit(unsigned int max_descriptors) {
|
|
// Unimplemented.
|
|
}
|
|
|
|
size_t GetPageSize() {
|
|
return getpagesize();
|
|
}
|
|
|
|
// Bytes committed by the system.
|
|
size_t GetSystemCommitCharge() {
|
|
NOTIMPLEMENTED();
|
|
return 0;
|
|
}
|
|
|
|
bool GetSystemMemoryInfo(SystemMemoryInfoKB* meminfo) {
|
|
struct host_basic_info hostinfo;
|
|
mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
|
|
base::mac::ScopedMachSendRight host(mach_host_self());
|
|
int result = host_info(host.get(), HOST_BASIC_INFO,
|
|
reinterpret_cast<host_info_t>(&hostinfo), &count);
|
|
if (result != KERN_SUCCESS)
|
|
return false;
|
|
|
|
DCHECK_EQ(HOST_BASIC_INFO_COUNT, count);
|
|
meminfo->total = static_cast<int>(hostinfo.max_mem / 1024);
|
|
|
|
vm_statistics64_data_t vm_info;
|
|
count = HOST_VM_INFO64_COUNT;
|
|
|
|
if (host_statistics64(host.get(), HOST_VM_INFO64,
|
|
reinterpret_cast<host_info64_t>(&vm_info),
|
|
&count) != KERN_SUCCESS) {
|
|
return false;
|
|
}
|
|
DCHECK_EQ(HOST_VM_INFO64_COUNT, count);
|
|
|
|
// Check that PAGE_SIZE is divisible by 1024 (2^10).
|
|
CHECK_EQ(PAGE_SIZE, (PAGE_SIZE >> 10) << 10);
|
|
meminfo->free = saturated_cast<int>(
|
|
PAGE_SIZE / 1024 * (vm_info.free_count - vm_info.speculative_count));
|
|
meminfo->speculative =
|
|
saturated_cast<int>(PAGE_SIZE / 1024 * vm_info.speculative_count);
|
|
meminfo->file_backed =
|
|
saturated_cast<int>(PAGE_SIZE / 1024 * vm_info.external_page_count);
|
|
meminfo->purgeable =
|
|
saturated_cast<int>(PAGE_SIZE / 1024 * vm_info.purgeable_count);
|
|
|
|
return true;
|
|
}
|
|
|
|
} // namespace base
|