139 lines
3.4 KiB
C++
139 lines
3.4 KiB
C++
/***************************************************************************
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* Copyright (C) 04/2006 by Olaf Rempel *
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* razzor@kopf-tisch.de *
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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 2 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, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <stdarg.h>
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#include <errno.h>
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#include <string.h>
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#include "logging.h"
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LogSystem::LogSystem()
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: output(0), priority(0)
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{
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}
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LogSystem::~LogSystem()
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{
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if (output)
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delete output;
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}
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LogSystem* LogSystem::getInstance()
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{
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static LogSystem ls;
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return &ls;
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}
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void LogSystem::init(int prio, LogOutput* out)
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{
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LogSystem* ls = getInstance();
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if (out) {
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if (ls->output)
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delete ls->output;
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ls->output = out;
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}
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ls->priority = prio;
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}
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void LogSystem::init(const char* prio, LogOutput* out)
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{
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if (!strcasecmp(prio, "DEBUG"))
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init(LOG_DEBUG, out);
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else if (!strcasecmp(prio, "INFO"))
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init(LOG_INFO, out);
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else if (!strcasecmp(prio, "NOTICE"))
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init(LOG_NOTICE, out);
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else if (!strcasecmp(prio, "WARN"))
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init(LOG_WARN, out);
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else if (!strcasecmp(prio, "ERROR"))
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init(LOG_ERROR, out);
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else if (!strcasecmp(prio, "CRIT"))
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init(LOG_CRIT, out);
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else
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log(LOG_CRIT, "invalid logging priority");
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}
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void LogSystem::log(int prio, const char* fmt, ...)
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{
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LogSystem* ls = getInstance();
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if (prio > ls->priority || !ls->output)
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return;
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va_list az;
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int len;
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va_start(az, fmt);
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len = vsnprintf(ls->buffer, sizeof(ls->buffer), fmt, az);
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va_end(az);
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if (errno) {
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strncpy(ls->buffer + len, ": ", sizeof(ls->buffer) - len);
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len += 2;
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strncpy(ls->buffer + len, strerror(errno), sizeof(ls->buffer) - len);
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errno = 0;
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}
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ls->output->write(ls->buffer);
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}
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/* ------- */
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void StdErrLog::write(const char* buf)
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{
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fprintf(stderr, "%s\n", buf);
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}
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/* ------- */
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FileLog::FileLog(const char* filename)
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{
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if (!(logfile = fopen(filename, "a" )))
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LogSystem::log(LOG_CRIT, "Can not open logfile '%s'", filename);
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fprintf(logfile, "-----------------\n");
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}
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FileLog::~FileLog()
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{
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fclose(logfile);
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}
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void FileLog::write(const char* buf)
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{
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time_t tzgr;
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char tbuf[64];
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time(&tzgr);
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strftime(tbuf, sizeof(tbuf), "%b %d %H:%M:%S :", localtime(&tzgr));
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fprintf(logfile, "%s %s\n", tbuf, buf);
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fflush(logfile);
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}
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