mirror of https://github.com/n7tae/new-xlxd.git
Tom Early
6 years ago
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24656209f7
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/*************************************************************************
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** Copyright (C) 2014 Jan Pedersen <jp@jp-embedded.com>
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**
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** This program is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 3 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program. If not, see <http://www.gnu.org/licenses/>.
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*************************************************************************/
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#ifndef __syslog
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#define __syslog
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#include <iostream>
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#include <streambuf>
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#include <string>
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namespace csyslog {
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#include <syslog.h>
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}
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namespace syslog
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{
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struct level {
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enum pri {
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emerg = LOG_EMERG, // A panic condition
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alert = LOG_ALERT, // A condition that should be corrected
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critical= LOG_CRIT, // Critical condition, e.g, hard device error
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error = LOG_ERR, // Errors
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warning = LOG_WARNING, // Warning messages
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notice = LOG_NOTICE, // Possibly be handled specially
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info = LOG_INFO, // Informational
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debug = LOG_DEBUG // For debugging program
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};
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};
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class streambuf : public std::streambuf
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{
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std::string _buf;
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int _level;
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public:
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streambuf() : _level(level::debug) { }
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void level(int level) { _level = level; }
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protected:
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int sync()
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{
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if (_buf.size()) {
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csyslog::syslog(_level, "%s", _buf.c_str());
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_buf.erase();
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}
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return 0;
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}
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int_type overflow(int_type c)
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{
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if(c == traits_type::eof()) sync();
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else _buf += static_cast<char>(c);
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return c;
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}
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};
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class ostream : public std::ostream
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{
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streambuf _logbuf;
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public:
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ostream() : std::ostream(&_logbuf) {}
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ostream& operator<<(const level::pri lev) { _logbuf.level(lev); return *this; }
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};
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class redirect
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{
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ostream dst;
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std::ostream &src;
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std::streambuf * const sbuf;
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public:
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redirect(std::ostream & src) : src(src), sbuf(src.rdbuf(dst.rdbuf())) { dst << (&src == &std::cout ? level::info : level::error); }
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~redirect() { src.rdbuf(sbuf); }
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};
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}
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#endif
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