143 lines
3.0 KiB
C++
143 lines
3.0 KiB
C++
/*
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* Copyright (C) John Baier 2014-2015 <ebusd@ebusd.eu>
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*
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* This file is part of ebusd.
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*
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* ebusd 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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* ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
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*/
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#include "log.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <time.h>
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#include <sys/time.h>
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#include <stdarg.h>
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#include "clock.h"
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using namespace std;
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/** the name of each @a LogFacility. */
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static const char *facilityNames[] = {
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"main",
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"network",
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"bus",
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"update",
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"all",
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NULL
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};
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/** the name of each @a LogLevel. */
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static const char* levelNames[] = {
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"none",
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"error",
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"notice",
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"info",
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"debug",
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NULL
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};
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/** the bit combination of currently active log facilities (1 << @a LogFacility). */
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static int logFacilites = LF_ALL;
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/** the current log level. */
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static LogLevel logLevel = ll_notice;
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/** the current log FILE. */
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static FILE* logFile = stdout;
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bool setLogFacilities(const char* facilities)
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{
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char *opt = (char*)facilities, *value = NULL;
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int newFacilites = 0;
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while (*opt) {
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int val = getsubopt(&opt, (char *const *)facilityNames, &value);
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if (val < 0 || val > lf_COUNT || value)
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return false;
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if (val == lf_COUNT) {
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newFacilites = LF_ALL;
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break;
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}
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newFacilites |= 1<<val;
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}
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logFacilites = newFacilites;
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return true;
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}
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bool setLogLevel(const char* level)
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{
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char *opt = (char*)level, *value = NULL;
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int newLevel = 0;
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if (*opt) {
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int val = getsubopt(&opt, (char *const *)levelNames, &value);
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if (val < 0 || val >= ll_COUNT || value || *opt)
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return false;
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newLevel = val;
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}
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logLevel = (LogLevel)newLevel;
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return true;
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}
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bool setLogFile(const char* filename)
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{
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FILE* newFile = fopen(filename, "a");
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if (newFile == NULL)
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return false;
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closeLogFile();
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logFile = newFile;
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return true;
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}
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void closeLogFile()
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{
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if (logFile != NULL) {
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if (logFile != stdout)
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fclose(logFile);
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logFile = NULL;
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}
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}
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bool needsLog(const LogFacility facility, const LogLevel level)
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{
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return ((logFacilites & (1<<facility)) != 0)
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&& (logLevel >= level);
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}
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void logWrite(const LogFacility facility, const LogLevel level, const char* message, ...)
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{
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struct timespec ts;
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struct tm* tm;
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clockGettime(&ts);
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tm = localtime(&ts.tv_sec);
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char* buf;
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va_list ap;
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va_start(ap, message);
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if (vasprintf(&buf, message, ap) >= 0 && buf) {
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fprintf(logFile, "%04d-%02d-%02d %02d:%02d:%02d.%03ld [%s %s] %s\n",
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tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
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tm->tm_hour, tm->tm_min, tm->tm_sec, ts.tv_nsec/1000000,
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facilityNames[facility], levelNames[level], buf);
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fflush(logFile);
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}
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va_end(ap);
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if (buf)
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free(buf);
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}
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