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57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
// Copyright 2017 The Chromium Authors
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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 <lib/fdio/limits.h>
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#include <lib/zx/process.h>
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#include "base/fuchsia/fuchsia_logging.h"
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#include "base/memory/ptr_util.h"
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namespace base {
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size_t GetMaxFds() {
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return FDIO_MAX_FD;
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}
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size_t GetHandleLimit() {
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// Duplicated from the internal Magenta kernel constant kMaxHandleCount
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// (zircon/kernel/object/handle.cc).
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return 256 * 1024u;
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}
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size_t GetSystemCommitCharge() {
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// TODO(crbug.com/42050627): Fuchsia does not support this.
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return 0;
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}
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ProcessMetrics::ProcessMetrics(ProcessHandle process) : process_(process) {}
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// static
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std::unique_ptr<ProcessMetrics> ProcessMetrics::CreateProcessMetrics(
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ProcessHandle process) {
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return base::WrapUnique(new ProcessMetrics(process));
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}
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base::expected<TimeDelta, ProcessCPUUsageError>
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ProcessMetrics::GetCumulativeCPUUsage() {
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zx_info_task_runtime_t stats;
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zx_status_t status = zx::unowned_process(process_)->get_info(
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ZX_INFO_TASK_RUNTIME, &stats, sizeof(stats), nullptr, nullptr);
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if (status != ZX_OK) {
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return base::unexpected(ProcessCPUUsageError::kSystemError);
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}
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return base::ok(TimeDelta::FromZxDuration(stats.cpu_time));
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}
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bool GetSystemMemoryInfo(SystemMemoryInfoKB* meminfo) {
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// TODO(crbug.com/42050627).
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return false;
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}
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} // namespace base
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