1 // Copyright 2020 The Pigweed Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not 4 // use this file except in compliance with the License. You may obtain a copy of 5 // the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12 // License for the specific language governing permissions and limitations under 13 // the License. 14 #pragma once 15 16 #include <span> 17 18 #include "pw_assert/assert.h" 19 #include "pw_bytes/span.h" 20 #include "pw_rpc/channel.h" 21 #include "pw_rpc/internal/lock.h" 22 #include "pw_rpc/internal/packet.h" 23 #include "pw_status/status.h" 24 25 namespace pw::rpc::internal { 26 27 // Returns a portion of the encoding buffer that may be used to encode an 28 // outgoing payload. 29 ByteSpan GetPayloadBuffer() PW_EXCLUSIVE_LOCKS_REQUIRED(rpc_lock()); 30 31 class Channel : public rpc::Channel { 32 public: 33 Channel() = delete; 34 Channel(uint32_t id,ChannelOutput * output)35 constexpr Channel(uint32_t id, ChannelOutput* output) 36 : rpc::Channel(id, output) {} 37 38 // Allow closing a channel for internal API users. 39 using rpc::Channel::Close; 40 41 // Allow setting the channel ID for tests. 42 using rpc::Channel::set_channel_id; 43 44 Status Send(const Packet& packet) PW_EXCLUSIVE_LOCKS_REQUIRED(rpc_lock()); 45 }; 46 47 } // namespace pw::rpc::internal 48