Initially add small and tight logging facility

master
Perttu Ahola 2011-10-16 12:45:00 +03:00
parent 414c614893
commit 4846846a2d
3 changed files with 214 additions and 0 deletions

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@ -90,6 +90,7 @@ configure_file(
)
set(common_SRCS
log.cpp
content_sao.cpp
mapgen.cpp
content_inventory.cpp

144
src/log.cpp Normal file
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@ -0,0 +1,144 @@
/*
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 General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU 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 "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_register_thread(const std::string &name)
{
threadid_t id = get_current_thread_id();
log_threadnames[id] = name;
}
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(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);
std::ostream errorstream(&errorbuf);
std::ostream actionstream(&actionbuf);
std::ostream infostream(&infobuf);
std::ostream verbosestream(&verbosebuf);

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src/log.h Normal file
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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 General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU 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.
*/
#ifndef LOG_HEADER
#define LOG_HEADER
#include <string>
/*
Use this for logging everything.
If you need to explicitly print something, use dstream or cout or cerr.
*/
enum LogMessageLevel {
LMT_ERROR, /* Something failed ("invalid map data on disk, block (2,2,1)") */
LMT_ACTION, /* In-game actions ("celeron55 placed block at (12,4,-5)") */
LMT_INFO, /* More deep info ("saving map on disk (only_modified=true)") */
LMT_VERBOSE, /* Flood-style ("loaded block (2,2,2) from disk") */
LMT_NUM_VALUES,
};
class ILogOutput
{
public:
/* line: Full line with timestamp, level and thread */
virtual void printLog(const std::string &line){};
/* line: Only actual printed text */
virtual void printLog(enum LogMessageLevel lev, const std::string &line){};
};
void log_add_output(ILogOutput *out, enum LogMessageLevel lev);
void log_add_output_maxlev(ILogOutput *out, enum LogMessageLevel lev);
void log_add_output_all_levs(ILogOutput *out);
void log_register_thread(const std::string &name);
void log_printline(enum LogMessageLevel lev, const std::string &text);
#define LOGLINEF(lev, ...)\
{\
char buf[10000];\
snprintf(buf, 10000, __VA_ARGS__);\
log_printline(lev, buf);\
}
extern std::ostream errorstream;
extern std::ostream actionstream;
extern std::ostream infostream;
extern std::ostream verbosestream;
#endif