| /* |
| * |
| * Copyright 2014, 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 <malloc.h> |
| |
| #include <node.h> |
| #include <nan.h> |
| #include "grpc/grpc.h" |
| #include "grpc/support/slice.h" |
| |
| #include "byte_buffer.h" |
| |
| namespace grpc { |
| namespace node { |
| |
| using ::node::Buffer; |
| using v8::Context; |
| using v8::Function; |
| using v8::Handle; |
| using v8::Object; |
| using v8::Number; |
| using v8::Value; |
| |
| grpc_byte_buffer *BufferToByteBuffer(Handle<Value> buffer) { |
| NanScope(); |
| int length = Buffer::Length(buffer); |
| char *data = Buffer::Data(buffer); |
| gpr_slice slice = gpr_slice_malloc(length); |
| memcpy(GPR_SLICE_START_PTR(slice), data, length); |
| grpc_byte_buffer *byte_buffer(grpc_byte_buffer_create(&slice, 1)); |
| gpr_slice_unref(slice); |
| return byte_buffer; |
| } |
| |
| Handle<Value> ByteBufferToBuffer(grpc_byte_buffer *buffer) { |
| NanEscapableScope(); |
| if (buffer == NULL) { |
| NanReturnNull(); |
| } |
| size_t length = grpc_byte_buffer_length(buffer); |
| char *result = reinterpret_cast<char *>(calloc(length, sizeof(char))); |
| size_t offset = 0; |
| grpc_byte_buffer_reader *reader = grpc_byte_buffer_reader_create(buffer); |
| gpr_slice next; |
| while (grpc_byte_buffer_reader_next(reader, &next) != 0) { |
| memcpy(result + offset, GPR_SLICE_START_PTR(next), GPR_SLICE_LENGTH(next)); |
| offset += GPR_SLICE_LENGTH(next); |
| } |
| return NanEscapeScope(MakeFastBuffer(NanNewBufferHandle(result, length))); |
| } |
| |
| Handle<Value> MakeFastBuffer(Handle<Value> slowBuffer) { |
| NanEscapableScope(); |
| Handle<Object> globalObj = Context::GetCurrent()->Global(); |
| Handle<Function> bufferConstructor = Handle<Function>::Cast( |
| globalObj->Get(NanNew("Buffer"))); |
| Handle<Value> consArgs[3] = { slowBuffer, |
| NanNew<Number>(Buffer::Length(slowBuffer)), |
| NanNew<Number>(0) }; |
| Handle<Object> fastBuffer = bufferConstructor->NewInstance(3, consArgs); |
| return NanEscapeScope(fastBuffer); |
| } |
| } // namespace node |
| } // namespace grpc |