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https://github.com/HarbourMasters/Shipwright
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apclientpp first attempt at dependencies
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aMannus
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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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#ifndef WEBSOCKETPP_LOGGER_BASIC_HPP
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#define WEBSOCKETPP_LOGGER_BASIC_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 <websocketpp/logger/levels.hpp>
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#include <websocketpp/common/cpp11.hpp>
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#include <websocketpp/common/stdint.hpp>
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#include <websocketpp/common/time.hpp>
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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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namespace websocketpp {
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namespace log {
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/// Basic logger that outputs to an ostream
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template <typename concurrency, typename names>
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class basic {
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public:
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basic<concurrency,names>(channel_type_hint::value h =
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channel_type_hint::access)
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: m_static_channels(0xffffffff)
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, m_dynamic_channels(0)
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, m_out(h == channel_type_hint::error ? &std::cerr : &std::cout) {}
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basic<concurrency,names>(std::ostream * out)
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: m_static_channels(0xffffffff)
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, m_dynamic_channels(0)
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, m_out(out) {}
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basic<concurrency,names>(level c, channel_type_hint::value h =
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channel_type_hint::access)
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: m_static_channels(c)
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, m_dynamic_channels(0)
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, m_out(h == channel_type_hint::error ? &std::cerr : &std::cout) {}
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basic<concurrency,names>(level c, std::ostream * out)
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: m_static_channels(c)
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, m_dynamic_channels(0)
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, m_out(out) {}
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/// Destructor
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~basic<concurrency,names>() {}
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/// Copy constructor
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basic<concurrency,names>(basic<concurrency,names> const & other)
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: m_static_channels(other.m_static_channels)
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, m_dynamic_channels(other.m_dynamic_channels)
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, m_out(other.m_out)
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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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basic<concurrency,names> & operator=(basic<concurrency,names> 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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basic<concurrency,names>(basic<concurrency,names> && other)
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: m_static_channels(other.m_static_channels)
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, m_dynamic_channels(other.m_dynamic_channels)
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, m_out(other.m_out)
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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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basic<concurrency,names> & operator=(basic<concurrency,names> &&) = delete;
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#endif // _WEBSOCKETPP_DEFAULT_DELETE_FUNCTIONS_
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#endif // _WEBSOCKETPP_MOVE_SEMANTICS_
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void set_ostream(std::ostream * out = &std::cout) {
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m_out = out;
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}
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void set_channels(level channels) {
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if (channels == names::none) {
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clear_channels(names::all);
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return;
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}
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scoped_lock_type lock(m_lock);
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m_dynamic_channels |= (channels & m_static_channels);
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}
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void clear_channels(level channels) {
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scoped_lock_type lock(m_lock);
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m_dynamic_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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scoped_lock_type lock(m_lock);
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if (!this->dynamic_test(channel)) { return; }
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*m_out << "[" << timestamp << "] "
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<< "[" << names::channel_name(channel) << "] "
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<< msg << "\n";
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m_out->flush();
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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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scoped_lock_type lock(m_lock);
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if (!this->dynamic_test(channel)) { return; }
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*m_out << "[" << timestamp << "] "
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<< "[" << names::channel_name(channel) << "] "
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<< msg << "\n";
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m_out->flush();
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}
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_WEBSOCKETPP_CONSTEXPR_TOKEN_ bool static_test(level channel) const {
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return ((channel & m_static_channels) != 0);
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}
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bool dynamic_test(level channel) {
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return ((channel & m_dynamic_channels) != 0);
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}
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protected:
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typedef typename concurrency::scoped_lock_type scoped_lock_type;
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typedef typename concurrency::mutex_type mutex_type;
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mutex_type m_lock;
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private:
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// The timestamp does not include the time zone, because on Windows with the
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// default registry settings, the time zone would be written out in full,
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// which would be obnoxiously verbose.
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//
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// TODO: find a workaround for this or make this format user settable
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static std::ostream & timestamp(std::ostream & os) {
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std::time_t t = std::time(NULL);
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std::tm lt = lib::localtime(t);
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#ifdef _WEBSOCKETPP_PUTTIME_
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return os << std::put_time(<,"%Y-%m-%d %H:%M:%S");
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#else // Falls back to strftime, which requires a temporary copy of the string.
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char buffer[20];
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size_t result = std::strftime(buffer,sizeof(buffer),"%Y-%m-%d %H:%M:%S",<);
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return os << (result == 0 ? "Unknown" : buffer);
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#endif
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}
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level const m_static_channels;
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level m_dynamic_channels;
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std::ostream * m_out;
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};
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} // log
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} // websocketpp
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#endif // WEBSOCKETPP_LOGGER_BASIC_HPP
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