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.
55 lines
1.9 KiB
55 lines
1.9 KiB
// |
|
// Copyright (C) 2014 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 UPDATE_ENGINE_UPDATE_MANAGER_EVALUATION_CONTEXT_INL_H_ |
|
#define UPDATE_ENGINE_UPDATE_MANAGER_EVALUATION_CONTEXT_INL_H_ |
|
|
|
#include <string> |
|
|
|
#include <base/logging.h> |
|
|
|
namespace chromeos_update_manager { |
|
|
|
template<typename T> |
|
const T* EvaluationContext::GetValue(Variable<T>* var) { |
|
if (var == nullptr) { |
|
LOG(ERROR) << "GetValue received an uninitialized variable."; |
|
return nullptr; |
|
} |
|
|
|
// Search for the value on the cache first. |
|
ValueCacheMap::iterator it = value_cache_.find(var); |
|
if (it != value_cache_.end()) |
|
return reinterpret_cast<const T*>(it->second.value()); |
|
|
|
// Get the value from the variable if not found on the cache. |
|
std::string errmsg; |
|
const T* result = var->GetValue(RemainingTime(evaluation_monotonic_deadline_), |
|
&errmsg); |
|
if (result == nullptr) { |
|
LOG(WARNING) << "Error reading Variable " << var->GetName() << ": \"" |
|
<< errmsg << "\""; |
|
} |
|
// Cache the value for the next time. The map of CachedValues keeps the |
|
// ownership of the pointer until the map is destroyed. |
|
value_cache_.emplace( |
|
static_cast<BaseVariable*>(var), BoxedValue(result)); |
|
return result; |
|
} |
|
|
|
} // namespace chromeos_update_manager |
|
|
|
#endif // UPDATE_ENGINE_UPDATE_MANAGER_EVALUATION_CONTEXT_INL_H_
|
|
|