0f6c6972c7
When running multiple instances of ptp4l or phc2sys, it's difficult to tell which log message belongs to which instance. Add new options to ptp4l and phc2sys which can specify a tag for all messages printed to the standard output or system log, so messages from different instances can have different tags. Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
/**
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* @file print.c
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* @note Copyright (C) 2011 Richard Cochran <richardcochran@gmail.com>
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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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdarg.h>
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#include <stdio.h>
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#include <syslog.h>
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#include <time.h>
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#include <unistd.h>
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#include "print.h"
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static int verbose = 0;
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static int print_level = LOG_INFO;
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static int use_syslog = 1;
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static const char *progname;
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static const char *message_tag;
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void print_set_progname(const char *name)
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{
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progname = name;
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}
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void print_set_tag(const char *tag)
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{
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message_tag = tag;
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}
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void print_set_syslog(int value)
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{
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use_syslog = value ? 1 : 0;
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}
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void print_set_level(int level)
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{
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print_level = level;
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}
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void print_set_verbose(int value)
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{
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verbose = value ? 1 : 0;
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}
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void print(int level, char const *format, ...)
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{
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struct timespec ts;
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va_list ap;
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char buf[1024];
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FILE *f;
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if (level > print_level)
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return;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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va_start(ap, format);
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vsnprintf(buf, sizeof(buf), format, ap);
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va_end(ap);
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if (verbose) {
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f = level >= LOG_NOTICE ? stdout : stderr;
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fprintf(f, "%s[%ld.%03ld]: %s%s%s\n",
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progname ? progname : "",
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ts.tv_sec, ts.tv_nsec / 1000000,
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message_tag ? message_tag : "", message_tag ? " " : "",
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buf);
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fflush(f);
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}
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if (use_syslog) {
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syslog(level, "[%ld.%03ld] %s%s%s",
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ts.tv_sec, ts.tv_nsec / 1000000,
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message_tag ? message_tag : "", message_tag ? " " : "",
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buf);
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}
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}
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