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Fix ArrayBuffer crashes and add performance test (issue #2521)

This commit is contained in:
Marshall Greenblatt 2018-10-10 16:12:22 +03:00
parent e4ae534754
commit 15fad89839
2 changed files with 28 additions and 25 deletions
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34
libcef/renderer/v8_impl.cc
View File

@ -319,6 +319,8 @@ class V8TrackArrayBuffer : public CefTrackNode {
buffer_(buffer),
release_callback_(release_callback) {
DCHECK(isolate_);
isolate_->AdjustAmountOfExternalAllocatedMemory(
static_cast<int>(sizeof(V8TrackArrayBuffer)));
}
~V8TrackArrayBuffer() {
@ -335,6 +337,13 @@ class V8TrackArrayBuffer : public CefTrackNode {
void Neuter() { buffer_ = nullptr; }
// Attach this track object to the specified V8 object.
void AttachTo(v8::Local<v8::Context> context,
v8::Local<v8::ArrayBuffer> arrayBuffer) {
SetPrivate(context, arrayBuffer, kCefTrackObject,
v8::External::New(isolate_, this));
}
// Retrieve the track object for the specified V8 object.
static V8TrackArrayBuffer* Unwrap(v8::Local<v8::Context> context,
v8::Local<v8::Object> object) {
@ -346,35 +355,10 @@ class V8TrackArrayBuffer : public CefTrackNode {
return nullptr;
}
// Attach this track object to the specified V8 object.
void AttachTo(v8::Local<v8::Context> context,
v8::Local<v8::ArrayBuffer> arrayBuffer) {
isolate_->AdjustAmountOfExternalAllocatedMemory(
static_cast<int>(sizeof(V8TrackArrayBuffer)));
SetPrivate(context, arrayBuffer, kCefTrackObject,
v8::External::New(isolate_, this));
handle_.Reset(isolate_, arrayBuffer);
handle_.SetWeak(this, FirstWeakCallback, v8::WeakCallbackType::kParameter);
handle_.MarkIndependent();
}
private:
static void FirstWeakCallback(
const v8::WeakCallbackInfo<V8TrackArrayBuffer>& data) {
V8TrackArrayBuffer* wrapper = data.GetParameter();
if (wrapper->buffer_ != nullptr) {
wrapper->release_callback_->ReleaseBuffer(wrapper->buffer_);
wrapper->buffer_ = nullptr;
}
wrapper->handle_.Reset();
}
v8::Isolate* isolate_;
void* buffer_;
CefRefPtr<CefV8ArrayBufferReleaseCallback> release_callback_;
v8::Persistent<v8::ArrayBuffer> handle_;
};
// Object wrapped in a v8::External and passed as the Data argument to

19
tests/cefclient/renderer/performance_test_tests.cc
View File

@ -318,6 +318,24 @@ PERF_TEST_FUNC(V8ObjectGetValueWithAccessor) {
PERF_ITERATIONS_END()
}
PERF_TEST_FUNC(V8ArrayBufferCreate) {
class ReleaseCallback : public CefV8ArrayBufferReleaseCallback {
public:
void ReleaseBuffer(void* buffer) override { std::free(buffer); }
IMPLEMENT_REFCOUNTING(ReleaseCallback);
};
size_t len = 1;
size_t byte_len = len * sizeof(float);
CefRefPtr<CefV8ArrayBufferReleaseCallback> callback = new ReleaseCallback();
PERF_ITERATIONS_START()
float* buffer = (float*)std::malloc(byte_len);
CefRefPtr<CefV8Value> ret =
CefV8Value::CreateArrayBuffer(buffer, byte_len, callback);
PERF_ITERATIONS_END()
}
PERF_TEST_FUNC(V8ContextEnterExit) {
CefRefPtr<CefV8Context> context = CefV8Context::GetCurrentContext();
@ -363,6 +381,7 @@ const PerfTestEntry kPerfTests[] = {
PERF_TEST_ENTRY(V8ObjectGetValue),
PERF_TEST_ENTRY(V8ObjectSetValueWithAccessor),
PERF_TEST_ENTRY(V8ObjectGetValueWithAccessor),
PERF_TEST_ENTRY(V8ArrayBufferCreate),
PERF_TEST_ENTRY(V8ContextEnterExit),
PERF_TEST_ENTRY(V8ContextEval),
};