Index: mojo/public/bindings/js/v8_core.cc |
diff --git a/mojo/public/bindings/js/v8_core.cc b/mojo/public/bindings/js/v8_core.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..69ce205b637236ba3d8f11ccdbdf8b31798e6ff8 |
--- /dev/null |
+++ b/mojo/public/bindings/js/v8_core.cc |
@@ -0,0 +1,177 @@ |
+// Copyright 2013 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "mojo/public/bindings/js/v8_core.h" |
+ |
+#include "mojo/public/bindings/js/v8_array_buffer.h" |
+#include "mojo/public/bindings/js/v8_conversions.h" |
+#include "mojo/public/bindings/js/v8_exceptions.h" |
+#include "mojo/public/bindings/js/v8_per_isolate_data.h" |
+ |
+namespace mojo { |
+namespace js { |
+ |
+namespace { |
+ |
+static WrapperInfo g_handle_wrapper_info = {}; |
Aaron Boodman
2013/11/09 08:26:02
We aren't supposed to have non-primitive static da
abarth-chromium
2013/11/09 08:52:37
WrapperInfo is POD. It doesn't have any static in
Aaron Boodman
2013/11/09 21:12:12
It seems like that should be OK logically, but I v
|
+ |
+bool ToHandleArray(v8::Isolate* isolate, |
+ v8::Handle<v8::Value> value, |
+ std::vector<mojo::Handle>* handles) { |
+ if (!value->IsArray()) { |
Aaron Boodman
2013/11/09 08:26:02
It seems like Wrapper<std::vector<mojo::Handle>> s
abarth-chromium
2013/11/09 08:52:37
Good point.
|
+ ThrowTypeError(isolate, "Expected array argument."); |
+ return false; |
+ } |
+ if (!ToNativeArray(v8::Handle<v8::Array>::Cast(value), handles)) { |
+ ThrowTypeError(isolate, "Expected an array of mojo::Handles."); |
+ return false; |
+ } |
+ return true; |
+} |
+ |
+void CloseCallback(const v8::FunctionCallbackInfo<v8::Value>& info) { |
Aaron Boodman
2013/11/09 08:26:02
I think the term 'callback' here is confusing beca
abarth-chromium
2013/11/09 08:52:37
Sorry, that's terminology from the Blink bindings
|
+ v8::Isolate* isolate = info.GetIsolate(); |
+ mojo::Handle handle = Wrapper<Handle>::ToNativeUnchecked(info.Holder()); |
+ |
+ MojoResult result = mojo::Close(handle); |
+ info.GetReturnValue().Set(Wrapper<MojoResult>::ToObject(isolate, result)); |
+} |
+ |
+void WaitCallback(const v8::FunctionCallbackInfo<v8::Value>& info) { |
+ v8::Isolate* isolate = info.GetIsolate(); |
+ |
+ if (info.Length() < 2) |
Aaron Boodman
2013/11/09 08:26:02
In my experience, this kind of code quickly gets i
abarth-chromium
2013/11/09 08:52:37
Ok. I'll work something up along those lines.
|
+ return ThrowTypeError(isolate, kInsufficientArguments); |
+ |
+ mojo::Handle handle = Wrapper<Handle>::ToNativeUnchecked(info.Holder()); |
+ MojoWaitFlags flags = Wrapper<MojoWaitFlags>::ToNative(info[0]); |
+ MojoDeadline deadline = Wrapper<MojoDeadline>::ToNative(info[1]); |
+ |
+ MojoResult result = mojo::Wait(handle, flags, deadline); |
+ info.GetReturnValue().Set(Wrapper<MojoResult>::ToObject(isolate, result)); |
+} |
+ |
+void WriteMessageCallback(const v8::FunctionCallbackInfo<v8::Value>& info) { |
+ v8::Isolate* isolate = info.GetIsolate(); |
+ |
+ if (info.Length() < 3) |
+ return ThrowTypeError(isolate, kInsufficientArguments); |
+ |
+ mojo::Handle handle = Wrapper<Handle>::ToNativeUnchecked(info.Holder()); |
+ |
+ if (!info[0]->IsArrayBufferView()) |
+ return ThrowTypeError(isolate, "Expected an ArrayBufferView."); |
+ BufferView buffer(isolate, v8::Handle<v8::ArrayBufferView>::Cast(info[0])); |
Aaron Boodman
2013/11/09 08:26:02
It would be cool if BufferView could again have a
abarth-chromium
2013/11/09 08:52:37
Ok. I'll have to do some more work to make Buffer
|
+ |
+ std::vector<mojo::Handle> handles; |
+ if (!ToHandleArray(isolate, info[1], &handles)) |
+ return; |
+ |
+ MojoWaitFlags flags = Wrapper<MojoWaitFlags>::ToNative(info[2]); |
+ |
+ MojoResult result = mojo::WriteMessage(handle, |
+ buffer.bytes(), |
+ buffer.num_bytes(), |
+ handles.data(), |
+ handles.size(), |
+ flags); |
+ |
+ info.GetReturnValue().Set(Wrapper<MojoResult>::ToObject(isolate, result)); |
+} |
+ |
+void ReadMessageCallback(const v8::FunctionCallbackInfo<v8::Value>& info) { |
+ v8::Isolate* isolate = info.GetIsolate(); |
+ |
+ if (info.Length() < 3) |
+ return ThrowTypeError(isolate, kInsufficientArguments); |
+ |
+ mojo::Handle handle = Wrapper<Handle>::ToNativeUnchecked(info.Holder()); |
+ |
+ if (!info[0]->IsArrayBufferView()) |
+ return ThrowTypeError(isolate, "Expected an ArrayBufferView."); |
+ BufferView buffer(isolate, v8::Handle<v8::ArrayBufferView>::Cast(info[0])); |
+ |
+ std::vector<mojo::Handle> handles(info[1]->Uint32Value()); |
+ |
+ MojoWaitFlags flags = Wrapper<MojoWaitFlags>::ToNative(info[2]); |
+ |
+ uint32_t num_bytes = buffer.num_bytes(); |
+ uint32_t num_handles = handles.size(); |
+ MojoResult result = mojo::ReadMessage(handle, |
+ buffer.bytes(), |
+ &num_bytes, |
+ handles.data(), |
+ &num_handles, |
+ flags); |
+ handles.resize(num_handles); |
+ |
+ // TODO(abarth): We should benchmark this codepath to make sure it's ok to |
+ // allocate all this memory on each read. |
+ |
+ v8::Handle<v8::Object> object = v8::Object::New(); |
+ object->Set(v8::String::NewSymbol("result"), |
+ Wrapper<MojoResult>::ToObject(isolate, result)); |
+ object->Set(v8::String::NewSymbol("bytesRead"), |
+ Wrapper<uint32_t>::ToObject(isolate, num_bytes)); |
+ object->Set(v8::String::NewSymbol("handles"), |
+ ToObjectArray(isolate, handles)); |
+ info.GetReturnValue().Set(object); |
+} |
+ |
+// TODO(abarth): Implement these functions. Unlike the functions above, |
+// these functions don't operate on an individual handle. |
+// |
+// MojoResult WaitMany(const Handle* handles, |
+// const MojoWaitFlags* flags, |
+// uint32_t num_handles, |
+// MojoDeadline deadline); |
+// MojoResult CreateMessagePipe(Handle* handle_0, Handle* handle_1); |
+ |
+} |
+ |
+v8::Local<v8::ObjectTemplate> Wrapper<mojo::Handle>::CreateTemplate() { |
+ v8::Local<v8::ObjectTemplate> handle_template = v8::ObjectTemplate::New(); |
+ handle_template->SetInternalFieldCount(kNumberOfInternalFields); |
+ handle_template->Set(v8::String::NewSymbol("close"), |
+ v8::FunctionTemplate::New(CloseCallback)); |
+ handle_template->Set(v8::String::NewSymbol("wait"), |
+ v8::FunctionTemplate::New(WaitCallback)); |
+ handle_template->Set(v8::String::NewSymbol("writeMessage"), |
+ v8::FunctionTemplate::New(WriteMessageCallback)); |
+ handle_template->Set(v8::String::NewSymbol("readMessage"), |
+ v8::FunctionTemplate::New(ReadMessageCallback)); |
+ return handle_template; |
+} |
+ |
+bool Wrapper<mojo::Handle>::HasInstance(v8::Handle<v8::Object> object) { |
+ return WrapperInfo::From(object) == &g_handle_wrapper_info; |
+} |
+ |
+v8::Handle<v8::Object> Wrapper<mojo::Handle>::ToObject( |
+ v8::Isolate* isolate, mojo::Handle handle) { |
+ V8PerIsolateData* data = V8PerIsolateData::From(isolate); |
+ v8::Local<v8::Object> object = data->handle_template()->NewInstance(); |
+ object->SetAlignedPointerInInternalField( |
+ kWrapperInfoIndex, &g_handle_wrapper_info); |
+ object->SetInternalField( |
+ kEncodedValueIndex, v8::Integer::NewFromUnsigned(handle.value, isolate)); |
+ return object; |
+} |
+ |
+mojo::Handle Wrapper<mojo::Handle>::ToNative( |
+ v8::Handle<v8::Object> object) { |
+ if (!HasInstance(object)) |
+ return mojo::kInvalidHandle; |
+ return ToNativeUnchecked(object); |
+} |
+ |
+mojo::Handle Wrapper<mojo::Handle>::ToNativeUnchecked( |
+ v8::Handle<v8::Object> object) { |
+ v8::Handle<v8::Value> field = object->GetInternalField(kEncodedValueIndex); |
+ mojo::Handle handle = { field->Uint32Value() }; |
+ return handle; |
+} |
+ |
+} // namespace js |
+} // mojo |