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671946e175
- Make an internal version of Server, which will expose functions for working with Reader/Writer objects - Make an internal version of Channel, which provides an interface for sending packets. - Define the Channel::OutputBuffer class for handling buffers acquired from a ChannelOutput. Change-Id: Ieea29c1392726cd2eb15008e19004cde05c7f43b Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/12160 Commit-Queue: Wyatt Hepler <hepler@google.com> Reviewed-by: Alexei Frolov <frolv@google.com>
45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
// Copyright 2020 The Pigweed Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy of
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// the License at
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//
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// https://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, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations under
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// the License.
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#include "pw_rpc/internal/channel.h"
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#include "pw_log/log.h"
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#include "pw_rpc/internal/packet.h"
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namespace pw::rpc::internal {
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using std::byte;
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span<byte> Channel::OutputBuffer::payload(const Packet& packet) const {
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const size_t reserved_size = packet.MinEncodedSizeBytes();
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return reserved_size <= buffer_.size() ? buffer_.subspan(reserved_size)
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: span<byte>();
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}
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Status Channel::Send(OutputBuffer& buffer, const internal::Packet& packet) {
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StatusWithSize encoded = packet.Encode(buffer.buffer_);
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buffer.buffer_ = {};
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if (!encoded.ok()) {
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PW_LOG_ERROR("Failed to encode response packet to channel buffer");
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output().SendAndReleaseBuffer(0);
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return Status::INTERNAL;
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}
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output().SendAndReleaseBuffer(encoded.size());
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return Status::OK;
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}
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} // namespace pw::rpc::internal
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