Alpha
This commit is contained in:
Robin Davies
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/*
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* Copyright (c) 2014, Peter Thorson. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the WebSocket++ Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/*
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Based on websocketpp/logger/pipedal_logger.hpp, Copyright Peter Thorson.
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*/
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/// Logger that redirects webserverpp messages to Lv2Log.
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#ifndef WEBSOCKETPP_LOGGER_PIPEDAL_HPP
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#define WEBSOCKETPP_LOGGER_PIPEDAL_HPP
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/* Need a way to print a message to the log
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*
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* - timestamps
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* - channels
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* - thread safe
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* - output to stdout or file
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* - selective output channels, both compile time and runtime
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* - named channels
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* - ability to test whether a log message will be printed at compile time
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*
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*/
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#include <ctime>
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#include <iostream>
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#include <iomanip>
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#include <string>
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#include "Lv2Log.hpp"
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#include "ss.hpp"
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#include <websocketpp/logger/levels.hpp>
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namespace pipedal {
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class pipedal_elog {
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public:
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using level = websocketpp::log::level;
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using elevel = websocketpp::log::elevel;
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using channel_type_hint = websocketpp::log::channel_type_hint;
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pipedal_elog()
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: m_channels(0xffffffff)
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{
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}
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/// Destructor
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~pipedal_elog() {}
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/// Copy constructor
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pipedal_elog(pipedal_elog const & other)
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: m_channels(other.m_channels)
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{}
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pipedal_elog(level level,channel_type_hint::value hint = channel_type_hint::error)
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{
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this->m_channels = level;
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}
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#ifdef _WEBSOCKETPP_DEFAULT_DELETE_FUNCTIONS_
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// no copy assignment operator because of const member variables
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pipedal_elog & operator=(pipedal_elog const &) = delete;
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#endif // _WEBSOCKETPP_DEFAULT_DELETE_FUNCTIONS_
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#ifdef _WEBSOCKETPP_MOVE_SEMANTICS_
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/// Move constructor
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pipedal_elog(pipedal_elog && other)
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: m_channels(other.m_channels)
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{}
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#ifdef _WEBSOCKETPP_DEFAULT_DELETE_FUNCTIONS_
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// no move assignment operator because of const member variables
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pipedal_elog & operator=(pipedal_elog &&) = delete;
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#endif // _WEBSOCKETPP_DEFAULT_DELETE_FUNCTIONS_
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#endif // _WEBSOCKETPP_MOVE_SEMANTICS_
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void set_channels(level channels) {
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m_channels |= channels;
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}
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void clear_channels(level channels) {
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m_channels &= ~m_channels;
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}
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/// Write a string message to the given channel
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/**
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* @param channel The channel to write to
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* @param msg The message to write
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*/
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void write(level channel, std::string const & msg) {
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if (!dynamic_test(channel)) return;
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switch (channel)
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{
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case elevel::devel:
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case elevel::library:
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Lv2Log::debug(msg);
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break;
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case elevel::info:
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Lv2Log::info(msg);
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break;
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case elevel::warn:
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Lv2Log::warning(msg);
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break;
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case elevel::rerror:
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Lv2Log::error(msg);
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break;
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case elevel::fatal:
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Lv2Log::error("Fatal error: " + msg);
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break;
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default:
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break;
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}
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}
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/// Write a cstring message to the given channel
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/**
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* @param channel The channel to write to
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* @param msg The message to write
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*/
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void write(level channel, char const * msg) {
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write(channel,std::string(msg));
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}
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constexpr bool static_test(level channel) const {
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return m_static_channels;
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}
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bool dynamic_test(level channel) {
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return (m_channels) & channel != 0;
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}
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protected:
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private:
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static constexpr level m_static_channels = elevel::warn | elevel::rerror | elevel::fatal;
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level m_channels;
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};
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class pipedal_alog {
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public:
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using level = websocketpp::log::level;
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using alevel = websocketpp::log::alevel;
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using channel_type_hint = websocketpp::log::channel_type_hint;
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pipedal_alog()
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:m_channels(alevel::fail)
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{
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}
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pipedal_alog(level level, channel_type_hint::value hint = channel_type_hint::access)
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: m_channels(level)
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{
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}
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/// Destructor
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~pipedal_alog() {}
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/// Copy constructor
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pipedal_alog(pipedal_alog const & other)
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:m_channels(other.m_channels)
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{}
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#ifdef _WEBSOCKETPP_DEFAULT_DELETE_FUNCTIONS_
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// no copy assignment operator because of const member variables
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pipedal_alog & operator=(pipedal_elog const &) = delete;
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#endif // _WEBSOCKETPP_DEFAULT_DELETE_FUNCTIONS_
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#ifdef _WEBSOCKETPP_MOVE_SEMANTICS_
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/// Move constructor
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pipedal_alog(pipedal_alog && other)
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{}
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#ifdef _WEBSOCKETPP_DEFAULT_DELETE_FUNCTIONS_
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// no move assignment operator because of const member variables
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pipedal_alog & operator=(pipedal_elog &&) = delete;
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#endif // _WEBSOCKETPP_DEFAULT_DELETE_FUNCTIONS_
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#endif // _WEBSOCKETPP_MOVE_SEMANTICS_
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void set_channels(level channels) {
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m_channels |= channels;
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}
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void clear_channels(level channels) {
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m_channels = m_channels & ~channels;
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}
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/// Write a string message to the given channel
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/**
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* @param channel The channel to write to
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* @param msg The message to write
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*/
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void write(level channel, std::string const & msg) {
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if (dynamic_test(channel))
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{
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Lv2Log::info(SS('[' << alevel::channel_name(channel) << "] " << msg));
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}
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}
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/// Write a cstring message to the given channel
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/**
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* @param channel The channel to write to
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* @param msg The message to write
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*/
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void write(level channel, char const * msg) {
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write(channel,std::string(msg));
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}
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constexpr bool static_test(level channel) const {
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return (this->m_static_channels & channel) != 0;
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}
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bool dynamic_test(level channel) {
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return false;
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}
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protected:
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private:
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static constexpr level m_static_channels = alevel::access_core;
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level m_channels;
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};
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} //namespace pipedal
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#endif // WEBSOCKETPP_LOGGER_PIPEDAL_HPP
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