| /* |
| * |
| * Copyright 2015, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #include <string.h> |
| |
| #include <node.h> |
| #include <nan.h> |
| #include "grpc/grpc.h" |
| #include "grpc/byte_buffer_reader.h" |
| #include "grpc/support/slice.h" |
| |
| #include "byte_buffer.h" |
| |
| namespace grpc { |
| namespace node { |
| |
| using Nan::MaybeLocal; |
| |
| using v8::Function; |
| using v8::Local; |
| using v8::Object; |
| using v8::Number; |
| using v8::Value; |
| |
| grpc_byte_buffer *BufferToByteBuffer(Local<Value> buffer) { |
| Nan::HandleScope scope; |
| int length = ::node::Buffer::Length(buffer); |
| char *data = ::node::Buffer::Data(buffer); |
| grpc_slice slice = grpc_slice_malloc(length); |
| memcpy(GRPC_SLICE_START_PTR(slice), data, length); |
| grpc_byte_buffer *byte_buffer(grpc_raw_byte_buffer_create(&slice, 1)); |
| grpc_slice_unref(slice); |
| return byte_buffer; |
| } |
| |
| namespace { |
| void delete_buffer(char *data, void *hint) { delete[] data; } |
| } |
| |
| Local<Value> ByteBufferToBuffer(grpc_byte_buffer *buffer) { |
| Nan::EscapableHandleScope scope; |
| if (buffer == NULL) { |
| return scope.Escape(Nan::Null()); |
| } |
| grpc_byte_buffer_reader reader; |
| if (!grpc_byte_buffer_reader_init(&reader, buffer)) { |
| Nan::ThrowError("Error initializing byte buffer reader."); |
| return scope.Escape(Nan::Undefined()); |
| } |
| grpc_slice slice = grpc_byte_buffer_reader_readall(&reader); |
| size_t length = GRPC_SLICE_LENGTH(slice); |
| char *result = new char[length]; |
| memcpy(result, GRPC_SLICE_START_PTR(slice), length); |
| grpc_slice_unref(slice); |
| return scope.Escape(MakeFastBuffer( |
| Nan::NewBuffer(result, length, delete_buffer, NULL).ToLocalChecked())); |
| } |
| |
| Local<Value> MakeFastBuffer(Local<Value> slowBuffer) { |
| Nan::EscapableHandleScope scope; |
| Local<Object> globalObj = Nan::GetCurrentContext()->Global(); |
| MaybeLocal<Value> constructorValue = Nan::Get( |
| globalObj, Nan::New("Buffer").ToLocalChecked()); |
| Local<Function> bufferConstructor = Local<Function>::Cast( |
| constructorValue.ToLocalChecked()); |
| const int argc = 3; |
| Local<Value> consArgs[argc] = { |
| slowBuffer, |
| Nan::New<Number>(::node::Buffer::Length(slowBuffer)), |
| Nan::New<Number>(0) |
| }; |
| MaybeLocal<Object> fastBuffer = Nan::NewInstance(bufferConstructor, |
| argc, consArgs); |
| return scope.Escape(fastBuffer.ToLocalChecked()); |
| } |
| } // namespace node |
| } // namespace grpc |