You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
87 lines
2.7 KiB
87 lines
2.7 KiB
/* |
|
* Copyright (C) 2017 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. |
|
*/ |
|
|
|
#ifndef ANDROID_VINTF_HAL_GROUP_H |
|
#define ANDROID_VINTF_HAL_GROUP_H |
|
|
|
#include <map> |
|
|
|
#include "MapValueIterator.h" |
|
|
|
namespace android { |
|
namespace vintf { |
|
|
|
// A HalGroup is a wrapped multimap from name to Hal. |
|
// Hal.getName() must return a string indicating the name. |
|
template <typename Hal> |
|
struct HalGroup { |
|
public: |
|
virtual ~HalGroup() {} |
|
// Move all hals from another HalGroup to this. |
|
bool addAll(HalGroup&& other, std::string* error = nullptr) { |
|
for (auto& pair : other.mHals) { |
|
if (!add(std::move(pair.second))) { |
|
if (error) { |
|
*error = pair.first; |
|
} |
|
return false; |
|
} |
|
} |
|
return true; |
|
} |
|
|
|
// Add an hal to this HalGroup so that it can be constructed programatically. |
|
bool add(Hal&& hal) { |
|
if (!shouldAdd(hal)) { |
|
return false; |
|
} |
|
std::string name = hal.getName(); |
|
mHals.emplace(std::move(name), std::move(hal)); // always succeed |
|
return true; |
|
} |
|
|
|
protected: |
|
// sorted map from component name to the component. |
|
// The component name looks like: android.hardware.foo |
|
std::multimap<std::string, Hal> mHals; |
|
|
|
// override this to filter for add. |
|
virtual bool shouldAdd(const Hal&) const { return true; } |
|
|
|
// Return an iterable to all ManifestHal objects. Call it as follows: |
|
// for (const auto& e : vm.getHals()) { } |
|
ConstMultiMapValueIterable<std::string, Hal> getHals() const { |
|
return ConstMultiMapValueIterable<std::string, Hal>(mHals); |
|
} |
|
|
|
// Get any HAL component based on the component name. Return any one |
|
// if multiple. Return nullptr if the component does not exist. This is only |
|
// for creating objects programatically. |
|
// The component name looks like: |
|
// android.hardware.foo |
|
Hal* getAnyHal(const std::string& name) { |
|
auto it = mHals.find(name); |
|
if (it == mHals.end()) { |
|
return nullptr; |
|
} |
|
return &(it->second); |
|
} |
|
}; |
|
|
|
} // namespace vintf |
|
} // namespace android |
|
|
|
#endif // ANDROID_VINTF_HAL_GROUP_H
|
|
|