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62 lines
2.0 KiB
62 lines
2.0 KiB
/*
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* Copyright 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <memory>
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namespace bluetooth {
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class Packet;
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class PacketBuilder {
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public:
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virtual size_t size() const = 0;
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virtual bool Serialize(const std::shared_ptr<Packet>& pkt) = 0;
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virtual ~PacketBuilder() = default;
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protected:
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// Only Builders should be able to call these
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void ReserveSpace(const std::shared_ptr<Packet>& pkt, size_t size);
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bool AddPayloadOctets1(const std::shared_ptr<Packet>& pkt, uint8_t value) {
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return AddPayloadOctets(pkt, 1, value);
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}
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bool AddPayloadOctets2(const std::shared_ptr<Packet>& pkt, uint16_t value) {
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return AddPayloadOctets(pkt, 2, value);
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}
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bool AddPayloadOctets3(const std::shared_ptr<Packet>& pkt, uint32_t value) {
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return AddPayloadOctets(pkt, 3, value);
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}
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bool AddPayloadOctets4(const std::shared_ptr<Packet>& pkt, uint32_t value) {
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return AddPayloadOctets(pkt, 4, value);
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}
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bool AddPayloadOctets6(const std::shared_ptr<Packet>& pkt, uint64_t value) {
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return AddPayloadOctets(pkt, 6, value);
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}
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bool AddPayloadOctets8(const std::shared_ptr<Packet>& pkt, uint64_t value) {
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return AddPayloadOctets(pkt, 8, value);
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}
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private:
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// Add |octets| bytes to the payload. Return true if:
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// - the value of |value| fits in |octets| bytes and
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// - the new size of the payload is still < |kMaxPayloadOctets|
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bool AddPayloadOctets(const std::shared_ptr<Packet>& pkt, size_t octets,
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uint64_t value);
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};
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} // namespace bluetooth
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