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102 lines
2.9 KiB
102 lines
2.9 KiB
4 months ago
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/*
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* Copyright 2019 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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#ifndef ANDROID_AUTOMOTIVE_COMPUTEPIPE_ROUTER_PIPE_CONTEXT
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#define ANDROID_AUTOMOTIVE_COMPUTEPIPE_ROUTER_PIPE_CONTEXT
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#include <memory>
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#include <string>
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#include <utility>
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#include "ClientHandle.h"
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#include "PipeHandle.h"
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namespace android {
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namespace automotive {
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namespace computepipe {
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namespace router {
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/**
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* This is the context of a registered pipe.
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* It tracks assignments to clients and availability.
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* It also owns the handle to the runner interface.
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* This is utilized by the registry to track every registered pipe
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*/
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template <typename T>
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class PipeContext {
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public:
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// Check if associated runner is alive
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bool isAlive() const {
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return mPipeHandle->isAlive();
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}
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// Retrieve the graph name
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std::string getGraphName() const {
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return mGraphName;
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}
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/**
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* Check if its available for clients
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*
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* If no client is assigned mClientHandle is null.
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* If a client is assigned use it to determine if its still alive,
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* If its not then the runner is available
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*/
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bool isAvailable() {
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if (!mClientHandle) {
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return true;
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}
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if (!mClientHandle->isAlive()) {
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mClientHandle = nullptr;
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return true;
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}
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return false;
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}
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// Mark availability. True if available
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void setClient(std::unique_ptr<ClientHandle> clientHandle) {
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mClientHandle.reset(clientHandle.release());
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}
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// Set the name of the graph
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void setGraphName(std::string name) {
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mGraphName = name;
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}
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// Duplicate the pipehandle for retrieval by clients.
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std::unique_ptr<PipeHandle<T>> dupPipeHandle() {
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return std::unique_ptr<PipeHandle<T>>(mPipeHandle->clone());
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}
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// Setup pipecontext
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PipeContext(std::unique_ptr<PipeHandle<T>> h, std::string name)
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: mGraphName(name), mPipeHandle(std::move(h)) {
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}
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~PipeContext() {
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if (mPipeHandle) {
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mPipeHandle = nullptr;
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}
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if (mClientHandle) {
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mClientHandle = nullptr;
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}
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}
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private:
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std::string mGraphName;
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std::unique_ptr<PipeHandle<T>> mPipeHandle;
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std::unique_ptr<ClientHandle> mClientHandle;
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bool hasClient;
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};
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} // namespace router
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} // namespace computepipe
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} // namespace automotive
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} // namespace android
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#endif
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