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src: fix GetCpuProfiler() deprecation warning

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Replace `v8::Isolate::GetCpuProfiler()` with `v8::CpuProfiler::New()`
and cache the instance; creating and disposing an instance every loop
tick is too expensive.

PR-URL: https://github.com/nodejs/node/pull/18534
Fixes: https://github.com/nodejs/node/issues/18039
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com>
This commit is contained in:
Ben Noordhuis 2018-02-02 17:39:34 +01:00 committed by Daniel Bevenius
parent 4a881e04dc
commit f02b74dfdb
2 changed files with 15 additions and 3 deletions
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14
src/env.cc
View File

@ -1,6 +1,5 @@
#include "node_internals.h"
#include "async_wrap.h"
#include "v8-profiler.h"
#include "node_buffer.h"
#include "node_platform.h"
@ -67,6 +66,15 @@ IsolateData::IsolateData(Isolate* isolate,
IsolateData::~IsolateData() {
if (platform_ != nullptr)
platform_->UnregisterIsolate(this);
if (cpu_profiler_ != nullptr)
cpu_profiler_->Dispose();
}
v8::CpuProfiler* IsolateData::GetCpuProfiler() {
if (cpu_profiler_ != nullptr) return cpu_profiler_;
cpu_profiler_ = v8::CpuProfiler::New(isolate());
CHECK_NE(cpu_profiler_, nullptr);
return cpu_profiler_;
}
void Environment::Start(int argc,
@ -152,12 +160,12 @@ void Environment::CleanupHandles() {
void Environment::StartProfilerIdleNotifier() {
uv_prepare_start(&idle_prepare_handle_, [](uv_prepare_t* handle) {
Environment* env = ContainerOf(&Environment::idle_prepare_handle_, handle);
env->isolate()->GetCpuProfiler()->SetIdle(true);
env->isolate_data()->GetCpuProfiler()->SetIdle(true);
});
uv_check_start(&idle_check_handle_, [](uv_check_t* handle) {
Environment* env = ContainerOf(&Environment::idle_check_handle_, handle);
env->isolate()->GetCpuProfiler()->SetIdle(false);
env->isolate_data()->GetCpuProfiler()->SetIdle(false);
});
}

4
src/env.h
View File

@ -33,6 +33,7 @@
#include "req_wrap.h"
#include "util.h"
#include "uv.h"
#include "v8-profiler.h"
#include "v8.h"
#include "node.h"
#include "node_http2_state.h"
@ -340,6 +341,8 @@ class IsolateData {
std::unordered_map<nghttp2_rcbuf*, v8::Eternal<v8::String>> http2_static_strs;
inline v8::Isolate* isolate() const;
v8::CpuProfiler* GetCpuProfiler();
private:
#define VP(PropertyName, StringValue) V(v8::Private, PropertyName)
#define VS(PropertyName, StringValue) V(v8::String, PropertyName)
@ -355,6 +358,7 @@ class IsolateData {
uv_loop_t* const event_loop_;
uint32_t* const zero_fill_field_;
MultiIsolatePlatform* platform_;
v8::CpuProfiler* cpu_profiler_ = nullptr;
DISALLOW_COPY_AND_ASSIGN(IsolateData);
};