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/*
* Copyright (c) 2019 Samsung Electronics Co., Ltd. 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.
*/
#ifndef __HERMES_SOURCE_SETTING_H__
#define __HERMES_SOURCE_SETTING_H__
#include <array>
#include <cstdint>
namespace hermes
{
class Filter final
{
public:
Filter(int32_t *ptr) : _ptr{ptr}
{
// DO NOTHING
}
public:
inline void reject_all(void) { *_ptr = -1; }
inline void accept_upto(uint16_t lv) { *_ptr = static_cast<int32_t>(lv); }
inline void accept_all(void) { *_ptr = 65536; }
private:
int32_t *_ptr;
};
class Limit final
{
public:
Limit(const int32_t *ptr) : _ptr{ptr}
{
// DO NOTHING
}
public:
inline int32_t level(void) const { return *_ptr; }
private:
const int32_t *_ptr;
};
class SourceSetting final
{
public:
SourceSetting()
{
// Reject all the messages by default
reject_all();
}
public:
void reject_all(void)
{
filter(FATAL).reject_all();
filter(ERROR).reject_all();
filter(WARN).reject_all();
filter(INFO).reject_all();
filter(VERBOSE).reject_all();
}
void accept_all(void)
{
filter(FATAL).accept_all();
filter(ERROR).accept_all();
filter(WARN).accept_all();
filter(INFO).accept_all();
filter(VERBOSE).accept_all();
}
inline Filter filter(const SeverityCategory &cat)
{
return _ulimits.data() + static_cast<uint32_t>(cat);
}
inline Limit limit(const SeverityCategory &cat) const
{
return _ulimits.data() + static_cast<uint32_t>(cat);
}
private:
/**
* @brief Allowed message level for each category
*
* This source will accept all the messages whose level belongs to [0, ulimit)
* where ulimit corresdpons to "limit(cat).value()"
*/
std::array<int32_t, 5> _ulimits;
};
} // namespace hermes
#endif // __HERMES_SOURCE_SETTING_H__
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