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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* 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 __VOM_LOGGER_H__
#define __VOM_LOGGER_H__
#include <fstream>
#include <iostream>
#include "vom/enum_base.hpp"
namespace VOM {
struct log_level_t : enum_base<log_level_t>
{
const static log_level_t CRITICAL;
const static log_level_t ERROR;
const static log_level_t WARNING;
const static log_level_t INFO;
const static log_level_t DEBUG;
private:
/**
* Private constructor taking the value and the string name
*/
log_level_t(int v, const std::string& s);
};
/**
* Ideally we'd use the boost logger but that is not prevelent
* in many distros. So something simple here instead.
*/
class log_t
{
public:
/**
* Construct a logger
*/
log_t();
/**
* Return the stream
*/
std::ostream& stream(const char* file, int line);
/**
* The configured level
*/
const log_level_t& level() const;
/**
* set the logging level
*/
void set(const log_level_t& level);
/**
* set a file to receive the logging data
*/
void set(const std::string& ofile);
private:
/**
* the configured logging level
*/
log_level_t m_level;
/**
* Opened file for debugging
*/
std::ofstream m_file_stream;
/**
* Pointer to the output stream
*/
std::ostream* m_o_stream;
};
/**
* Return a log object into which VPP objects can write
*/
log_t& logger();
#define VOM_LOG(lvl) \
if (lvl >= logger().level()) \
logger().stream(__FILE__, __LINE__)
};
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "mozilla")
* End:
*/
#endif
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