platform_system_core/init/interface_utils.h

51 lines
1.9 KiB
C++

/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <map>
#include <set>
#include <string>
#include <hidl-util/FQName.h>
#include "result.h"
namespace android {
namespace init {
using InterfaceInheritanceHierarchyMap = std::map<android::FQName, std::set<android::FQName>>;
// For the given set of interfaces / interface instances, checks that each
// interface's hierarchy of inherited interfaces is also included in the given
// interface set. Uses the provided hierarchy data.
Result<void> CheckInterfaceInheritanceHierarchy(const std::set<std::string>& instances,
const InterfaceInheritanceHierarchyMap& hierarchy);
Result<void> CheckInterfaceInheritanceHierarchy(const std::set<android::FQName>& interfaces,
const InterfaceInheritanceHierarchyMap& hierarchy);
// Saves the set of known interfaces using the provided HIDL interface
// inheritance hierarchy.
void SetKnownInterfaces(const InterfaceInheritanceHierarchyMap& hierarchy);
// Checks if the provided interface is in the set of known interfaces. Returns
// an empty Result if present, otherwise an Error.
Result<void> IsKnownInterface(const std::string& instance);
Result<void> IsKnownInterface(const FQName& intf);
} // namespace init
} // namespace android