minetest/src/log.cpp
2015-08-25 18:33:52 -04:00

214 lines
4.8 KiB
C++

/*
Minetest
Copyright (C) 2013 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 "threading/mutex_auto_lock.h"
#include "debug.h"
#include "gettime.h"
#include "porting.h"
#include "config.h"
// Connection
std::ostream *dout_con_ptr = &dummyout;
std::ostream *derr_con_ptr = &verbosestream;
// Server
std::ostream *dout_server_ptr = &infostream;
std::ostream *derr_server_ptr = &errorstream;
#ifndef SERVER
// Client
std::ostream *dout_client_ptr = &infostream;
std::ostream *derr_client_ptr = &errorstream;
#endif
#ifdef __ANDROID__
unsigned int android_log_level_mapping[] = {
/* LMT_ERROR */ ANDROID_LOG_ERROR,
/* LMT_ACTION */ ANDROID_LOG_WARN,
/* LMT_INFO */ ANDROID_LOG_INFO,
/* LMT_VERBOSE */ ANDROID_LOG_VERBOSE
};
#endif
std::vector<ILogOutput*> log_outputs[LMT_NUM_VALUES];
std::map<threadid_t, std::string> log_thread_names;
Mutex log_thread_name_mutex;
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::vector<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_set_lev_silence(enum LogMessageLevel lev, bool silence)
{
MutexAutoLock lock(log_thread_name_mutex);
for (std::vector<ILogOutput *>::iterator it = log_outputs[lev].begin();
it != log_outputs[lev].end(); ++it) {
ILogOutput *out = *it;
out->silence = silence;
}
}
void log_register_thread(const std::string &name)
{
threadid_t id = get_current_thread_id();
MutexAutoLock lock(log_thread_name_mutex);
log_thread_names[id] = name;
}
void log_deregister_thread()
{
threadid_t id = get_current_thread_id();
MutexAutoLock lock(log_thread_name_mutex);
log_thread_names.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)
{
MutexAutoLock lock(log_thread_name_mutex);
std::string threadname = "(unknown thread)";
std::map<threadid_t, std::string>::const_iterator i;
i = log_thread_names.find(get_current_thread_id());
if(i != log_thread_names.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::vector<ILogOutput*>::iterator i = log_outputs[lev].begin();
i != log_outputs[lev].end(); ++i) {
ILogOutput *out = *i;
if (out->silence)
continue;
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);
#ifdef __ANDROID__
__android_log_print(android_log_level_mapping[m_lev], PROJECT_NAME, "%s", m_buf.c_str());
#endif
}
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);
bool log_trace_level_enabled = false;