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127 lines
4.1 KiB
C++
127 lines
4.1 KiB
C++
/*
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* Copyright (c) 2013, 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_HPP
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#define WEBSOCKETPP_LOGGER_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 <websocketpp/common/stdint.hpp>
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#include <websocketpp/logger/levels.hpp>
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namespace websocketpp {
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namespace log {
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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>(std::ostream* out = &std::cout)
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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, std::ostream* out = &std::cout)
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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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void set_ostream(std::ostream* out) {
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m_out = out;
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}
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void set_channels(level channels) {
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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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void write(level channel, const std::string& 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 << "[" << get_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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void write(level channel, const char* 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 << "[" << get_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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bool static_test(level channel) const {
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return ((channel & m_static_channels) != 0);
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}
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private:
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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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bool dynamic_test(level channel) {
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return ((channel & m_dynamic_channels) != 0);
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}
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const char* get_timestamp() {
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std::time_t t = std::time(NULL);
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std::strftime(buffer,39,"%Y-%m-%d %H:%M:%S%z",std::localtime(&t));
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return buffer;
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}
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mutex_type m_lock;
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char buffer[40];
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const level 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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} // logger
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} // websocketpp
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#endif //WEBSOCKETPP_LOGGER_HPP
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