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.
81 lines
1.9 KiB
81 lines
1.9 KiB
/* Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
|
|
|
|
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 <string>
|
|
#include <unordered_map>
|
|
#include "paddle/fluid/platform/enforce.h"
|
|
|
|
namespace paddle {
|
|
namespace inference {
|
|
|
|
// NOTE not thread-safe.
|
|
template <typename T>
|
|
struct Singleton {
|
|
static T& Global() {
|
|
static T* x = new T;
|
|
return *x;
|
|
}
|
|
|
|
Singleton() = delete;
|
|
Singleton& operator=(const Singleton&) = delete;
|
|
};
|
|
|
|
/*
|
|
* An registor for any type.
|
|
* NOTE not thread-safe.
|
|
*/
|
|
template <typename ItemParent>
|
|
struct Registry {
|
|
static Registry& Global() {
|
|
static auto* x = new Registry<ItemParent>;
|
|
return *x;
|
|
}
|
|
|
|
template <typename ItemChild>
|
|
static void Register(const std::string& name) {
|
|
PADDLE_ENFORCE_EQ(items_.count(name), 0);
|
|
items_[name] = new ItemChild;
|
|
}
|
|
|
|
static ItemParent* Lookup(const std::string& name,
|
|
const std::string& default_name = "") {
|
|
auto it = items_.find(name);
|
|
if (it == items_.end()) {
|
|
if (default_name == "")
|
|
return nullptr;
|
|
else
|
|
return items_.find(default_name)->second;
|
|
}
|
|
return it->second;
|
|
}
|
|
|
|
~Registry() {
|
|
for (auto& item : items_) {
|
|
delete item.second;
|
|
}
|
|
}
|
|
|
|
private:
|
|
Registry() = default;
|
|
static std::unordered_map<std::string, ItemParent*> items_;
|
|
};
|
|
|
|
template <typename ItemParent>
|
|
std::unordered_map<std::string, ItemParent*> Registry<ItemParent>::items_;
|
|
|
|
} // namespace inference
|
|
} // namespace paddle
|