65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
// Copyright 2022 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_list.h"
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namespace pw::rpc::internal {
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const Channel* ChannelList::Get(uint32_t channel_id) const {
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for (const Channel& channel : channels_) {
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if (channel.id() == channel_id) {
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return &channel;
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}
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}
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return nullptr;
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}
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Status ChannelList::Add(uint32_t channel_id, ChannelOutput& output) {
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if (Get(channel_id) != nullptr) {
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return Status::AlreadyExists();
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}
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#if PW_RPC_DYNAMIC_ALLOCATION
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channels_.emplace_back(channel_id, &output);
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#else
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Channel* new_channel = Get(Channel::kUnassignedChannelId);
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if (new_channel == nullptr) {
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return Status::ResourceExhausted();
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}
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new_channel->Configure(channel_id, output);
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#endif // PW_RPC_DYNAMIC_ALLOCATION
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return OkStatus();
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}
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Status ChannelList::Remove(uint32_t channel_id) {
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Channel* channel = Get(channel_id);
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if (channel == nullptr) {
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return Status::NotFound();
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}
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channel->Close();
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#if PW_RPC_DYNAMIC_ALLOCATION
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// Order isn't important, so move the channel to the back then pop it.
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std::swap(*channel, channels_.back());
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channels_.pop_back();
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#endif // PW_RPC_DYNAMIC_ALLOCATION
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return OkStatus();
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}
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} // namespace pw::rpc::internal
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