8000 src: improve error handling in node_blob by jasnell · Pull Request #57078 · nodejs/node · GitHub
[go: up one dir, main page]
Skip to content

src: improve error handling in node_blob #57078

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
jasnell wants to merge 1 commit into from
Closed

src: improve error handling in node_blob #57078

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
63 changes: 35 additions & 28 deletions src/node_blob.cc
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -30,8 +30,10 @@ using v8::HandleScope;
using v8::Int32;
using v8::Isolate;
using v8::Local;
using v8::NewStringType;
using v8::Object;
using v8::ObjectTemplate;
using v8::SnapshotCreator;
using v8::String;
using v8::Uint32;
using v8::Undefined;
Expand All @@ -58,7 +60,7 @@ void Concat(const FunctionCallbackInfo<Value>& args) {
std::vector<View> views;
size_t total = 0;

std::vector<v8::Global<Value>> buffers;
std::vector<Global<Value>> buffers;
if (FromV8Array(context, array, &buffers).IsNothing()) {
return;
}
Expand Down Expand Up @@ -108,17 +110,14 @@ void BlobFromFilePath(const FunctionCallbackInfo<Value>& args) {
std::vector<std::unique_ptr<DataQueue::Entry>> entries;
entries.push_back(std::move(entry));

auto blob =
Blob::Create(env, DataQueue::CreateIdempotent(std::move(entries)));

if (blob) {
auto array = Array::New(env->isolate(), 2);
USE(array->Set(env->context(), 0, blob->object()));
USE(array->Set(env->context(),
1,
Uint32::NewFromUnsigned(env->isolate(), blob->length())));

args.GetReturnValue().Set(array);
if (auto blob =
Blob::Create(env, DataQueue::CreateIdempotent(std::move(entries)))) {
Local<Value> vals[2]{
blob->object(),
Uint32::NewFromUnsigned(env->isolate(), blob->length()),
};
args.GetReturnValue().Set(
Array::New(env->isolate(), &vals[0], arraysize(vals)));
}
}
} // namespace
Expand Down Expand Up @@ -159,7 +158,7 @@ Local<FunctionTemplate> Blob::GetConstructorTemplate(Environment* env) {
return tmpl;
}

bool Blob::HasInstance(Environment* env, v8::Local<v8::Value> object) {
bool Blob::HasInstance(Environment* env, Local<Value> object) {
return GetConstructorTemplate(env)->HasInstance(object);
}

Expand Down Expand Up @@ -188,7 +187,7 @@ void Blob::New(const FunctionCallbackInfo<Value>& args) {
Local<Array> array = args[0].As<Array>();
std::vector<std::unique_ptr<DataQueue::Entry>> entries(array->Length());

std::vector<v8::Global<Value>> sources;
std::vector<Global<Value>> sources;
if (FromV8Array(context, array, &sources).IsNothing()) {
return;
}
Expand All @@ -197,12 +196,16 @@ void Blob::New(const FunctionCallbackInfo<Value>& args) {
for (size_t i = 0; i < count; i++) {
Local<Value> entry = sources[i].Get(isolate);

const auto entryFromArrayBuffer = [isolate](v8::Local<v8::ArrayBuffer> buf,
size_t byte_length,
size_t byte_offset = 0) {
auto entryFromArrayBuffer =
[isolate](Local<ArrayBuffer> buf,
size_t byte_length,
size_t byte_offset =
0) mutable -> std::unique_ptr<DataQueue::Entry> {
if (buf->IsDetachable()) {
std::shared_ptr<BackingStore> store = buf->GetBackingStore();
USE(buf->Detach(Local<Value>()));
if (buf->Detach(Local<Value>()).IsNothing()) {
return nullptr;
}
return DataQueue::CreateInMemoryEntryFromBackingStore(
store, byte_offset, byte_length);
}
Expand All @@ -227,11 +230,15 @@ void Blob::New(const FunctionCallbackInfo<Value>& args) {
// ensuring appropriate spec compliance.
if (entry->IsArrayBuffer()) {
Local<ArrayBuffer> buf = entry.As<ArrayBuffer>();
entries[i] = entryFromArrayBuffer(buf, buf->ByteLength());
auto ret = entryFromArrayBuffer(buf, buf->ByteLength());
if (!ret) return;
entries[i] = std::move(ret);
} else if (entry->IsArrayBufferView()) {
Local<ArrayBufferView> view = entry.As<ArrayBufferView>();
entries[i] = entryFromArrayBuffer(
auto ret = entryFromArrayBuffer(
view->Buffer(), view->ByteLength(), view->ByteOffset());
if (!ret) return;
entries[i] = std::move(ret);
} else if (Blob::HasInstance(env, entry)) {
Blob* blob;
ASSIGN_OR_RETURN_UNWRAP(&blob, entry);
Expand Down Expand Up @@ -279,22 +286,22 @@ BaseObjectPtr<Blob> Blob::Slice(Environment* env, size_t start, size_t end) {
}

Blob::Blob(Environment* env,
v8::Local<v8::Object> obj,
Local<Object> obj,
std::shared_ptr<DataQueue> data_queue)
: BaseObject(env, obj), data_queue_(data_queue) {
MakeWeak();
}

Blob::Reader::Reader(Environment* env,
v8::Local<v8::Object> obj,
Local<Object> obj,
BaseObjectPtr<Blob> strong_ptr)
: AsyncWrap(env, obj, AsyncWrap::PROVIDER_BLOBREADER),
inner_(strong_ptr->data_queue_->get_reader()),
strong_ptr_(std::move(strong_ptr)) {
MakeWeak();
}

bool Blob::Reader::HasInstance(Environment* env, v8::Local<v8::Value> value) {
bool Blob::Reader::HasInstance(Environment* env, Local<Value> value) {
return GetConstructorTemplate(env)->HasInstance(value);
}

Expand Down Expand Up @@ -370,7 +377,7 @@ void Blob::Reader::Pull(const FunctionCallbackInfo<Value>& args) {
for (size_t n = 0; n < count; n++) total += vecs[n].len;

std::shared_ptr<BackingStore> store =
v8::ArrayBuffer::NewBackingStore(env->isolate(), total);
ArrayBuffer::NewBackingStore(env->isolate(), total);
auto ptr = static_cast<uint8_t*>(store->Data());
for (size_t n = 0; n < count; n++) {
std::copy(vecs[n].base, vecs[n].base + vecs[n].len, ptr);
Expand Down Expand Up @@ -415,7 +422,7 @@ std::unique_ptr<worker::TransferData> Blob::CloneForMessaging() const {
return std::make_unique<BlobTransferData>(data_queue_);
}

void Blob::StoreDataObject(const v8::FunctionCallbackInfo<v8::Value>& args) {
void Blob::StoreDataObject(const FunctionCallbackInfo<Value>& args) {
Realm* realm = Realm::GetCurrent(args);

CHECK(args[0]->IsString()); // ID key
Expand Down Expand Up @@ -468,7 +475,7 @@ void Blob::RevokeObjectURL(const FunctionCallbackInfo<Value>& args) {
}
}

void Blob::GetDataObject(const v8::FunctionCallbackInfo<v8::Value>& args) {
void Blob::GetDataObject(const FunctionCallbackInfo<Value>& args) {
CHECK(args[0]->IsString());
Realm* realm = Realm::GetCurrent(args);
BlobBindingData* binding_data = realm->GetBindingData<BlobBindingData>();
Expand All @@ -482,7 +489,7 @@ void Blob::GetDataObject(const v8::FunctionCallbackInfo<v8::Value>& args) {
Local<Value> type;
if (!String::NewFromUtf8(isolate,
stored.type.c_str(),
v8::NewStringType::kNormal,
NewStringType::kNormal,
static_cast<int>(stored.type.length()))
.ToLocal(&type)) {
return;
Expand Down Expand Up @@ -554,7 +561,7 @@ void BlobBindingData::Deserialize(Local<Context> context,
}

bool BlobBindingData::PrepareForSerialization(Local<Context> context,
v8::SnapshotCreator* creator) {
SnapshotCreator* creator) {
// Stored blob objects are not actually persisted.
// Return true because we need to maintain the reference to the binding from
// JS land.
Expand Down
Loading
0