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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/performance_manager/graph/process_node_impl_describer.h"
#include "base/i18n/time_formatting.h"
#include "base/notreached.h"
#include "base/numerics/safe_conversions.h"
#include "base/process/process.h"
#include "base/process/process_handle.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "base/task/task_traits.h"
#include "base/values.h"
#include "build/build_config.h"
#include "components/performance_manager/graph/process_node_impl.h"
#include "components/performance_manager/public/graph/node_data_describer_registry.h"
#include "components/performance_manager/public/graph/process_node.h"
#include "content/public/browser/child_process_host.h"
#if BUILDFLAG(IS_WIN)
#include "base/win/win_util.h"
#endif
namespace performance_manager {
namespace {
const char kDescriberName[] = "ProcessNodeImpl";
std::string ContentTypeToString(ProcessNode::ContentType content_type) {
switch (content_type) {
case ProcessNode::ContentType::kExtension:
return "Extension";
case ProcessNode::ContentType::kMainFrame:
return "Main frame";
case ProcessNode::ContentType::kSubframe:
return "Subframe";
case ProcessNode::ContentType::kNavigatedFrame:
return "Navigated Frame";
case ProcessNode::ContentType::kAd:
return "Ad";
case ProcessNode::ContentType::kWorker:
return "Worker";
}
}
std::string HostedProcessTypesToString(
ProcessNode::ContentTypes hosted_content_types) {
std::vector<std::string> content_types_vector;
content_types_vector.reserve(hosted_content_types.size());
for (ProcessNode::ContentType content_type : hosted_content_types)
content_types_vector.push_back(ContentTypeToString(content_type));
std::string str = base::JoinString(content_types_vector, ", ");
if (str.empty())
str = "none";
return str;
}
#if !BUILDFLAG(IS_APPLE)
const char* GetProcessPriorityString(const base::Process& process) {
switch (process.GetPriority()) {
case base::Process::Priority::kBestEffort:
return "Best effort";
case base::Process::Priority::kUserVisible:
return "User visible";
case base::Process::Priority::kUserBlocking:
return "User blocking";
}
NOTREACHED();
}
#endif
base::Value GetProcessValueDict(const base::Process& process) {
base::Value::Dict ret;
// On Windows, handle is a void *. On Fuchsia it's an int. On other platforms
// it is equal to the pid, so don't bother to record it.
#if BUILDFLAG(IS_WIN)
ret.Set("handle",
static_cast<int>(base::win::HandleToUint32(process.Handle())));
#elif BUILDFLAG(IS_FUCHSIA)
ret.Set("handle", static_cast<int>(process.Handle()));
#endif
// Most processes are not current, so only show the outliers.
if (process.is_current()) {
ret.Set("is_current", true);
}
#if BUILDFLAG(IS_CHROMEOS)
if (process.GetPidInNamespace() != base::kNullProcessId) {
ret.Set("pid_in_namespace", process.GetPidInNamespace());
}
#endif
#if BUILDFLAG(IS_WIN)
// Creation time is always available on Windows, even for dead processes.
// On other platforms it is available only for valid processes (see below).
ret.Set("creation_time",
base::TimeFormatTimeOfDayWithMilliseconds(process.CreationTime()));
#endif
if (process.IsValid()) {
// These properties can only be accessed for valid processes.
ret.Set("os_priority", process.GetOSPriority());
#if !BUILDFLAG(IS_APPLE)
ret.Set("priority", GetProcessPriorityString(process));
#endif
#if !BUILDFLAG(IS_ANDROID) && !BUILDFLAG(IS_WIN)
ret.Set("creation_time",
base::TimeFormatTimeOfDayWithMilliseconds(process.CreationTime()));
#endif
#if BUILDFLAG(IS_WIN)
// Most processes are running, so only show the outliers.
if (!process.IsRunning()) {
ret.Set("is_running", false);
}
#endif
} else {
ret.Set("is_valid", false);
}
return base::Value(std::move(ret));
}
// Converts TimeTicks to Time. The conversion will be incorrect if system
// time is adjusted between `ticks` and now.
base::Time TicksToTime(base::TimeTicks ticks) {
base::Time now_time = base::Time::Now();
base::TimeTicks now_ticks = base::TimeTicks::Now();
base::TimeDelta elapsed_since_ticks = now_ticks - ticks;
return now_time - elapsed_since_ticks;
}
} // namespace
void ProcessNodeImplDescriber::OnPassedToGraph(Graph* graph) {
graph->GetNodeDataDescriberRegistry()->RegisterDescriber(this,
kDescriberName);
}
void ProcessNodeImplDescriber::OnTakenFromGraph(Graph* graph) {
graph->GetNodeDataDescriberRegistry()->UnregisterDescriber(this);
}
base::Value::Dict ProcessNodeImplDescriber::DescribeProcessNodeData(
const ProcessNode* node) const {
const ProcessNodeImpl* impl = ProcessNodeImpl::FromNode(node);
base::Value::Dict ret;
ret.Set("pid", base::NumberToString(impl->GetProcessId()));
ret.Set("process", GetProcessValueDict(impl->GetProcess()));
ret.Set("launch_time", base::TimeFormatTimeOfDayWithMilliseconds(
TicksToTime(impl->GetLaunchTime())));
ret.Set("resource_context", impl->GetResourceContext().ToString());
if (impl->GetExitStatus()) {
ret.Set("exit_status", impl->GetExitStatus().value());
}
if (!impl->GetMetricsName().empty()) {
ret.Set("metrics_name", impl->GetMetricsName());
}
ret.Set("priority", base::TaskPriorityToString(impl->GetPriority()));
if (impl->GetPrivateFootprintKb()) {
ret.Set("private_footprint_kb",
base::saturated_cast<int>(impl->GetPrivateFootprintKb()));
}
if (impl->GetResidentSetKb()) {
ret.Set("resident_set_kb",
base::saturated_cast<int>(impl->GetResidentSetKb()));
}
// The content function returns "Tab" for renderers - whereas "Renderer" is
// the common vernacular here.
std::string process_type =
content::GetProcessTypeNameInEnglish(impl->GetProcessType());
if (impl->GetProcessType() == content::PROCESS_TYPE_RENDERER) {
process_type = "Renderer";
}
ret.Set("process_type", process_type);
if (impl->GetProcessType() == content::PROCESS_TYPE_RENDERER) {
// Renderer-only properties.
ret.Set("render_process_id", impl->GetRenderProcessHostId().value());
ret.Set("main_thread_task_load_is_low", impl->GetMainThreadTaskLoadIsLow());
ret.Set("hosted_content_types",
HostedProcessTypesToString(impl->GetHostedContentTypes()));
} else if (impl->GetProcessType() != content::PROCESS_TYPE_BROWSER) {
// Non-renderer child process properties.
ret.Set("browser_child_process_host_id",
impl->GetBrowserChildProcessHostProxy()
.browser_child_process_host_id()
.value());
}
return ret;
}
} // namespace performance_manager
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