1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "mojo/public/cpp/bindings/lib/message_builder.h" 6 7 #include "mojo/public/cpp/bindings/message.h" 8 9 namespace mojo { 10 namespace internal { 11 12 template <typename Header> 13 void Allocate(Buffer* buf, Header** header) { 14 *header = static_cast<Header*>(buf->Allocate(sizeof(Header))); 15 (*header)->num_bytes = sizeof(Header); 16 } 17 18 MessageBuilder::MessageBuilder(uint32_t name, size_t payload_size) 19 : buf_(sizeof(MessageHeader) + payload_size) { 20 MessageHeader* header; 21 Allocate(&buf_, &header); 22 header->num_fields = 2; 23 header->name = name; 24 } 25 26 MessageBuilder::~MessageBuilder() { 27 } 28 29 void MessageBuilder::Finish(Message* message) { 30 uint32_t num_bytes = static_cast<uint32_t>(buf_.size()); 31 message->AdoptData(num_bytes, static_cast<MessageData*>(buf_.Leak())); 32 } 33 34 MessageBuilder::MessageBuilder(size_t size) 35 : buf_(size) { 36 } 37 38 MessageWithRequestIDBuilder::MessageWithRequestIDBuilder(uint32_t name, 39 size_t payload_size, 40 uint32_t flags, 41 uint64_t request_id) 42 : MessageBuilder(sizeof(MessageHeaderWithRequestID) + payload_size) { 43 MessageHeaderWithRequestID* header; 44 Allocate(&buf_, &header); 45 header->num_fields = 3; 46 header->name = name; 47 header->flags = flags; 48 header->request_id = request_id; 49 } 50 51 } // namespace internal 52 } // namespace mojo 53
