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authorKrock <mk939@ymail.com>2019-11-09 14:37:15 +0000
committerrubenwardy <rw@rubenwardy.com>2020-01-24 18:34:11 +0000
commitbc29596458a0b0e74e21aa2122bbf47c1e30b75b (patch)
tree9683311478619f27ac922c1088b02b9d3a66b5ac /util/travis
parentac9f83197f4ebecb61030f85b45d88cd02c96ec3 (diff)
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/*
Minetest-c55
Copyright (C) 2011 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#include "log.h"

#include <map>
#include <list>
#include <sstream>
#include <algorithm>
#include "threads.h"
#include "debug.h"
#include "gettime.h"

std::list<ILogOutput*> log_outputs[LMT_NUM_VALUES];
std::map<threadid_t, std::string> log_threadnames;

void log_add_output(ILogOutput *out, enum LogMessageLevel lev)
{
	log_outputs[lev].push_back(out);
}

void log_add_output_maxlev(ILogOutput *out, enum LogMessageLevel lev)
{
	for(int i=0; i<=lev; i++)
		log_outputs[i].push_back(out);
}

void log_add_output_all_levs(ILogOutput *out)
{
	for(int i=0; i<LMT_NUM_VALUES; i++)
		log_outputs[i].push_back(out);
}

void log_remove_output(ILogOutput *out)
{
	for(int i=0; i<LMT_NUM_VALUES; i++){
		std::list<ILogOutput*>::iterator it =
				std::find(log_outputs[i].begin(), log_outputs[i].end(), out);
		if(it != log_outputs[i].end())
			log_outputs[i].erase(it);
	}
}

void log_register_thread(const std::string &name)
{
	threadid_t id = get_current_thread_id();
	log_threadnames[id] = name;
}

void log_deregister_thread()
{
	threadid_t id = get_current_thread_id();
	log_threadnames.erase(id);
}

static std::string get_lev_string(enum LogMessageLevel lev)
{
	switch(lev){
	case LMT_ERROR:
		return "ERROR";
	case LMT_ACTION:
		return "ACTION";
	case LMT_INFO:
		return "INFO";
	case LMT_VERBOSE:
		return "VERBOSE";
	case LMT_NUM_VALUES:
		break;
	}
	return "(unknown level)";
}

void log_printline(enum LogMessageLevel lev, const std::string &text)
{
	std::string threadname = "(unknown thread)";
	std::map<threadid_t, std::string>::const_iterator i;
	i = log_threadnames.find(get_current_thread_id());
	if(i != log_threadnames.end())
		threadname = i->second;
	std::string levelname = get_lev_string(lev);
	std::ostringstream os(std::ios_base::binary);
	os<<getTimestamp()<<": "<<levelname<<"["<<threadname<<"]: "<<text;
	for(std::list<ILogOutput*>::iterator i = log_outputs[lev].begin();
			i != log_outputs[lev].end(); i++){
		ILogOutput *out = *i;
		out->printLog(os.str());
		out->printLog(os.str(), lev);
		out->printLog(lev, text);
	}
}

class Logbuf : public std::streambuf
{
public:
	Logbuf(enum LogMessageLevel lev):
		m_lev(lev)
	{
	}

	~Logbuf()
	{
	}

	int overflow(int c)
	{
		bufchar(c);
		return c;
	}
	std::streamsize xsputn(const char *s, std::streamsize n)
	{
		for(int i=0; i<n; i++)
			bufchar(s[i]);
		return n;
	}

	void printbuf()
	{
		log_printline(m_lev, m_buf);
	}

	void bufchar(char c)
	{
		if(c == '\n' || c == '\r'){
			if(m_buf != "")
				printbuf();
			m_buf = "";
			return;
		}
		m_buf += c;
	}
	
private:
	enum LogMessageLevel m_lev;
	std::string m_buf;
};

Logbuf errorbuf(LMT_ERROR);
Logbuf actionbuf(LMT_ACTION);
Logbuf infobuf(LMT_INFO);
Logbuf verbosebuf(LMT_VERBOSE);