Wyatt Hepler | cb9d957 | 2020-06-01 11:25:58 -0700 | [diff] [blame] | 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 | |
| 15 | #include "pw_rpc/internal/base_server_writer.h" |
| 16 | |
Wyatt Hepler | cb9d957 | 2020-06-01 11:25:58 -0700 | [diff] [blame] | 17 | #include "pw_rpc/internal/method.h" |
| 18 | #include "pw_rpc/internal/packet.h" |
| 19 | #include "pw_rpc/server.h" |
| 20 | |
| 21 | namespace pw::rpc::internal { |
| 22 | |
| 23 | BaseServerWriter& BaseServerWriter::operator=(BaseServerWriter&& other) { |
Wyatt Hepler | 671946e | 2020-06-09 14:39:33 -0700 | [diff] [blame^] | 24 | call_ = std::move(other.call_); |
Wyatt Hepler | cb9d957 | 2020-06-01 11:25:58 -0700 | [diff] [blame] | 25 | response_ = std::move(other.response_); |
| 26 | state_ = std::move(other.state_); |
Wyatt Hepler | 671946e | 2020-06-09 14:39:33 -0700 | [diff] [blame^] | 27 | |
Wyatt Hepler | cb9d957 | 2020-06-01 11:25:58 -0700 | [diff] [blame] | 28 | other.state_ = kClosed; |
| 29 | return *this; |
| 30 | } |
| 31 | |
Wyatt Hepler | 671946e | 2020-06-09 14:39:33 -0700 | [diff] [blame^] | 32 | void BaseServerWriter::Finish() { |
| 33 | if (!open()) { |
| 34 | return; |
Wyatt Hepler | cb9d957 | 2020-06-01 11:25:58 -0700 | [diff] [blame] | 35 | } |
Wyatt Hepler | 671946e | 2020-06-09 14:39:33 -0700 | [diff] [blame^] | 36 | |
| 37 | // TODO(hepler): Send a control packet indicating that the stream has |
| 38 | // terminated. |
| 39 | |
| 40 | state_ = kClosed; |
Wyatt Hepler | cb9d957 | 2020-06-01 11:25:58 -0700 | [diff] [blame] | 41 | } |
| 42 | |
Wyatt Hepler | 671946e | 2020-06-09 14:39:33 -0700 | [diff] [blame^] | 43 | span<std::byte> BaseServerWriter::AcquirePayloadBuffer() { |
Wyatt Hepler | cb9d957 | 2020-06-01 11:25:58 -0700 | [diff] [blame] | 44 | if (!open()) { |
| 45 | return {}; |
| 46 | } |
| 47 | |
Wyatt Hepler | 671946e | 2020-06-09 14:39:33 -0700 | [diff] [blame^] | 48 | response_ = call_.channel().AcquireBuffer(); |
| 49 | return response_.payload(packet()); |
Wyatt Hepler | cb9d957 | 2020-06-01 11:25:58 -0700 | [diff] [blame] | 50 | } |
| 51 | |
Wyatt Hepler | 671946e | 2020-06-09 14:39:33 -0700 | [diff] [blame^] | 52 | Status BaseServerWriter::ReleasePayloadBuffer(span<const std::byte> payload) { |
Wyatt Hepler | cb9d957 | 2020-06-01 11:25:58 -0700 | [diff] [blame] | 53 | if (!open()) { |
| 54 | return Status::FAILED_PRECONDITION; |
| 55 | } |
Wyatt Hepler | 671946e | 2020-06-09 14:39:33 -0700 | [diff] [blame^] | 56 | return call_.channel().Send(response_, packet(payload)); |
Wyatt Hepler | cb9d957 | 2020-06-01 11:25:58 -0700 | [diff] [blame] | 57 | } |
| 58 | |
Wyatt Hepler | 671946e | 2020-06-09 14:39:33 -0700 | [diff] [blame^] | 59 | Packet BaseServerWriter::packet(span<const std::byte> payload) const { |
Wyatt Hepler | cb9d957 | 2020-06-01 11:25:58 -0700 | [diff] [blame] | 60 | return Packet(PacketType::RPC, |
Wyatt Hepler | 671946e | 2020-06-09 14:39:33 -0700 | [diff] [blame^] | 61 | call_.channel().id(), |
| 62 | call_.service().id(), |
| 63 | method().id(), |
| 64 | payload); |
Wyatt Hepler | cb9d957 | 2020-06-01 11:25:58 -0700 | [diff] [blame] | 65 | } |
| 66 | |
| 67 | } // namespace pw::rpc::internal |