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Unified Diff: src/api.cc

Issue 1069883002: WIP SharedArrayBuffer implementation (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 8 months ago
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Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index da510ad4fd3b5d707817a98d3426382036ab6130..39a1c0dfd512146aed2bfa2ea92fd9b072b70d28 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -3048,9 +3048,9 @@ void v8::Promise::Resolver::CheckCast(Value* that) {
void v8::ArrayBuffer::CheckCast(Value* that) {
i::Handle<i::Object> obj = Utils::OpenHandle(that);
- Utils::ApiCheck(obj->IsJSArrayBuffer(),
- "v8::ArrayBuffer::Cast()",
- "Could not convert to ArrayBuffer");
+ Utils::ApiCheck(
+ obj->IsJSArrayBuffer() && !i::JSArrayBuffer::cast(*obj)->is_shared(),
+ "v8::ArrayBuffer::Cast()", "Could not convert to ArrayBuffer");
}
@@ -3064,20 +3064,20 @@ void v8::ArrayBufferView::CheckCast(Value* that) {
void v8::TypedArray::CheckCast(Value* that) {
i::Handle<i::Object> obj = Utils::OpenHandle(that);
- Utils::ApiCheck(obj->IsJSTypedArray(),
- "v8::TypedArray::Cast()",
- "Could not convert to TypedArray");
+ Utils::ApiCheck(
+ obj->IsJSTypedArray() && !i::JSTypedArray::cast(*obj)->is_shared(),
+ "v8::TypedArray::Cast()", "Could not convert to TypedArray");
}
#define CHECK_TYPED_ARRAY_CAST(Type, typeName, TYPE, ctype, size) \
void v8::Type##Array::CheckCast(Value* that) { \
i::Handle<i::Object> obj = Utils::OpenHandle(that); \
- Utils::ApiCheck(obj->IsJSTypedArray() && \
- i::JSTypedArray::cast(*obj)->type() == \
- kExternal##Type##Array, \
- "v8::" #Type "Array::Cast()", \
- "Could not convert to " #Type "Array"); \
+ Utils::ApiCheck( \
+ obj->IsJSTypedArray() && \
+ i::JSTypedArray::cast(*obj)->type() == kExternal##Type##Array && \
+ !i::JSTypedArray::cast(*obj)->is_shared(), \
+ "v8::" #Type "Array::Cast()", "Could not convert to " #Type "Array"); \
}
@@ -3094,6 +3094,40 @@ void v8::DataView::CheckCast(Value* that) {
}
+void v8::SharedArrayBuffer::CheckCast(Value* that) {
+ i::Handle<i::Object> obj = Utils::OpenHandle(that);
+ Utils::ApiCheck(
+ obj->IsJSArrayBuffer() && i::JSArrayBuffer::cast(*obj)->is_shared(),
+ "v8::SharedArrayBuffer::Cast()",
+ "Could not convert to SharedArrayBuffer");
+}
+
+
+void v8::SharedTypedArray::CheckCast(Value* that) {
+ i::Handle<i::Object> obj = Utils::OpenHandle(that);
+ Utils::ApiCheck(
+ obj->IsJSTypedArray() && i::JSTypedArray::cast(*obj)->is_shared(),
+ "v8::SharedTypedArray::Cast()", "Could not convert to SharedTypedArray");
+}
+
+
+#define CHECK_SHARED_TYPED_ARRAY_CAST(Type, typeName, TYPE, ctype, size) \
+ void v8::Shared##Type##Array::CheckCast(Value* that) { \
+ i::Handle<i::Object> obj = Utils::OpenHandle(that); \
+ Utils::ApiCheck( \
+ obj->IsJSTypedArray() && \
+ i::JSTypedArray::cast(*obj)->type() == kExternal##Type##Array && \
+ i::JSTypedArray::cast(*obj)->is_shared(), \
+ "v8::Shared" #Type "Array::Cast()", \
+ "Could not convert to Shared" #Type "Array"); \
+ }
+
+
+TYPED_ARRAYS(CHECK_SHARED_TYPED_ARRAY_CAST)
+
+#undef CHECK_SHARED_TYPED_ARRAY_CAST
+
+
void v8::Date::CheckCast(v8::Value* that) {
i::Handle<i::Object> obj = Utils::OpenHandle(that);
i::Isolate* isolate = NULL;
@@ -5428,6 +5462,15 @@ void v8::V8::SetArrayBufferAllocator(
i::V8::SetArrayBufferAllocator(allocator);
}
+void v8::V8::SetSharedArrayBufferAllocator(
+ SharedArrayBuffer::Allocator* allocator) {
+ if (!Utils::ApiCheck(i::V8::SharedArrayBufferAllocator() == NULL,
+ "v8::V8::SetSharedArrayBufferAllocator",
+ "SharedArrayBufferAllocator might only be set once"))
+ return;
+ i::V8::SetSharedArrayBufferAllocator(allocator);
+}
+
bool v8::V8::Dispose() {
i::V8::TearDown();
@@ -6388,7 +6431,7 @@ Local<ArrayBuffer> v8::ArrayBuffer::New(Isolate* isolate, size_t byte_length) {
LOG_API(i_isolate, "v8::ArrayBuffer::New(size_t)");
ENTER_V8(i_isolate);
i::Handle<i::JSArrayBuffer> obj =
- i_isolate->factory()->NewJSArrayBuffer();
+ i_isolate->factory()->NewJSArrayBuffer(false);
i::Runtime::SetupArrayBufferAllocatingData(i_isolate, obj, byte_length);
return Utils::ToLocal(obj);
}
@@ -6400,7 +6443,7 @@ Local<ArrayBuffer> v8::ArrayBuffer::New(Isolate* isolate, void* data,
LOG_API(i_isolate, "v8::ArrayBuffer::New(void*, size_t)");
ENTER_V8(i_isolate);
i::Handle<i::JSArrayBuffer> obj =
- i_isolate->factory()->NewJSArrayBuffer();
+ i_isolate->factory()->NewJSArrayBuffer(false);
i::Runtime::SetupArrayBuffer(i_isolate, obj, true, data, byte_length);
return Utils::ToLocal(obj);
}
@@ -6487,7 +6530,7 @@ size_t v8::TypedArray::Length() {
} \
i::Handle<i::JSArrayBuffer> buffer = Utils::OpenHandle(*array_buffer); \
i::Handle<i::JSTypedArray> obj = isolate->factory()->NewJSTypedArray( \
- v8::kExternal##Type##Array, buffer, byte_offset, length); \
+ v8::kExternal##Type##Array, buffer, byte_offset, length, false); \
return Utils::ToLocal##Type##Array(obj); \
}
@@ -6507,6 +6550,107 @@ Local<DataView> DataView::New(Handle<ArrayBuffer> array_buffer,
}
+bool v8::SharedArrayBuffer::IsExternal() const {
+ return Utils::OpenHandle(this)->is_external();
+}
+
+
+v8::SharedArrayBuffer::Contents v8::SharedArrayBuffer::Externalize() {
+ i::Handle<i::JSArrayBuffer> obj = Utils::OpenHandle(this);
+ Utils::ApiCheck(!obj->is_external(), "v8::SharedArrayBuffer::Externalize",
+ "SharedArrayBuffer already externalized");
+ obj->set_is_external(true);
+ size_t byte_length = static_cast<size_t>(obj->byte_length()->Number());
+ Contents contents;
+ contents.data_ = obj->backing_store();
+ contents.byte_length_ = byte_length;
+ return contents;
+}
+
+
+size_t v8::SharedArrayBuffer::ByteLength() const {
+ i::Handle<i::JSArrayBuffer> obj = Utils::OpenHandle(this);
+ return static_cast<size_t>(obj->byte_length()->Number());
+}
+
+
+Local<SharedArrayBuffer> v8::SharedArrayBuffer::New(Isolate* isolate,
+ size_t byte_length) {
+ i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
+ LOG_API(i_isolate, "v8::SharedArrayBuffer::New(size_t)");
+ ENTER_V8(i_isolate);
+ i::Handle<i::JSArrayBuffer> obj =
+ i_isolate->factory()->NewJSArrayBuffer(true);
+ i::Runtime::SetupArrayBufferAllocatingData(i_isolate, obj, byte_length, true,
+ true);
+ return Utils::ToLocalShared(obj);
+}
+
+
+Local<SharedArrayBuffer> v8::SharedArrayBuffer::New(Isolate* isolate,
+ void* data,
+ size_t byte_length) {
+ i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
+ LOG_API(i_isolate, "v8::SharedArrayBuffer::New(void*, size_t)");
+ ENTER_V8(i_isolate);
+ i::Handle<i::JSArrayBuffer> obj =
+ i_isolate->factory()->NewJSArrayBuffer(true);
+ i::Runtime::SetupArrayBuffer(i_isolate, obj, true, data, byte_length, true);
+ return Utils::ToLocalShared(obj);
+}
+
+
+Local<SharedArrayBuffer> v8::SharedTypedArray::Buffer() {
+ i::Handle<i::JSTypedArray> obj = Utils::OpenHandle(this);
+ i::Handle<i::JSArrayBuffer> buffer = i::JSTypedArray::cast(*obj)->GetBuffer();
+ return Utils::ToLocalShared(buffer);
+}
+
+
+size_t v8::SharedTypedArray::ByteOffset() {
+ i::Handle<i::JSTypedArray> obj = Utils::OpenHandle(this);
+ return static_cast<size_t>(obj->byte_offset()->Number());
+}
+
+
+size_t v8::SharedTypedArray::ByteLength() {
+ i::Handle<i::JSTypedArray> obj = Utils::OpenHandle(this);
+ return static_cast<size_t>(obj->byte_length()->Number());
+}
+
+
+size_t v8::SharedTypedArray::Length() {
+ i::Handle<i::JSTypedArray> obj = Utils::OpenHandle(this);
+ return static_cast<size_t>(obj->length()->Number());
+}
+
+
+#define SHARED_TYPED_ARRAY_NEW(Type, type, TYPE, ctype, size) \
+ Local<Shared##Type##Array> Shared##Type##Array::New( \
+ Handle<SharedArrayBuffer> array_buffer, size_t byte_offset, \
+ size_t length) { \
+ i::Isolate* isolate = Utils::OpenHandle(*array_buffer)->GetIsolate(); \
+ LOG_API(isolate, "v8::Shared" #Type \
+ "Array::New(Handle<SharedArrayBuffer>, size_t, size_t)"); \
+ ENTER_V8(isolate); \
+ if (!Utils::ApiCheck( \
+ length <= static_cast<size_t>(i::Smi::kMaxValue), \
+ "v8::Shared" #Type \
+ "Array::New(Handle<SharedArrayBuffer>, size_t, size_t)", \
+ "length exceeds max allowed value")) { \
+ return Local<Shared##Type##Array>(); \
+ } \
+ i::Handle<i::JSArrayBuffer> buffer = Utils::OpenHandle(*array_buffer); \
+ i::Handle<i::JSTypedArray> obj = isolate->factory()->NewJSTypedArray( \
+ v8::kExternal##Type##Array, buffer, byte_offset, length, true); \
+ return Utils::ToLocalShared##Type##Array(obj); \
+ }
+
+
+TYPED_ARRAYS(SHARED_TYPED_ARRAY_NEW)
+#undef SHARED_TYPED_ARRAY_NEW
+
+
Local<Symbol> v8::Symbol::New(Isolate* isolate, Local<String> name) {
i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
LOG_API(i_isolate, "Symbol::New()");
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