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52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
// Copyright 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "mojo/public/cpp/bindings/lib/message_builder.h"
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#include "mojo/public/cpp/bindings/message.h"
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namespace mojo {
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namespace internal {
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template <typename Header>
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void Allocate(Buffer* buf, Header** header) {
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*header = static_cast<Header*>(buf->Allocate(sizeof(Header)));
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(*header)->num_bytes = sizeof(Header);
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}
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MessageBuilder::MessageBuilder(uint32_t name, size_t payload_size)
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: buf_(sizeof(MessageHeader) + payload_size) {
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MessageHeader* header;
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Allocate(&buf_, &header);
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header->version = 0;
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header->name = name;
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}
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MessageBuilder::~MessageBuilder() {
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}
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void MessageBuilder::Finish(Message* message) {
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uint32_t num_bytes = static_cast<uint32_t>(buf_.size());
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message->AdoptData(num_bytes, static_cast<MessageData*>(buf_.Leak()));
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}
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MessageBuilder::MessageBuilder(size_t size) : buf_(size) {
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}
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MessageWithRequestIDBuilder::MessageWithRequestIDBuilder(uint32_t name,
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size_t payload_size,
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uint32_t flags,
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uint64_t request_id)
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: MessageBuilder(sizeof(MessageHeaderWithRequestID) + payload_size) {
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MessageHeaderWithRequestID* header;
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Allocate(&buf_, &header);
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header->version = 1;
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header->name = name;
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header->flags = flags;
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header->request_id = request_id;
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}
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} // namespace internal
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} // namespace mojo
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