Mercurial > sci
view log.c @ 0:f1de39079243
misc: initial import
author | David Demelier <markand@malikania.fr> |
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date | Mon, 07 Jun 2021 09:41:37 +0200 |
parents | |
children | 3051ef92173a |
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/* * log.c -- logging routines * * Copyright (c) 2020-2021 David Demelier <markand@malikania.fr> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include <assert.h> #include <stdio.h> #include <syslog.h> #include "log.h" /* TODO: replace. */ static struct { enum log_level verbosity; } config = { .verbosity = LOG_LEVEL_DEBUG }; static int syslog_levels[] = { [LOG_LEVEL_DEBUG] = LOG_DEBUG, [LOG_LEVEL_INFO] = LOG_INFO, [LOG_LEVEL_WARNING] = LOG_WARNING }; void log_open(const char *name) { openlog(name, 0, LOG_USER); } void log_write(enum log_level level, const char *fmt, ...) { assert(level >= LOG_LEVEL_WARNING && level <= LOG_LEVEL_DEBUG); assert(fmt); if (config.verbosity >= level) { va_list ap; va_start(ap, fmt); log_vwrite(level, fmt, ap); va_end(ap); } } void log_vwrite(enum log_level level, const char *fmt, va_list ap) { assert(level >= LOG_LEVEL_WARNING && level <= LOG_LEVEL_DEBUG); assert(fmt); char line[BUFSIZ]; vsnprintf(line, sizeof (line), fmt, ap); syslog(syslog_levels[level], "%s", line); } void log_finish(void) { if (config.verbosity > 0) closelog(); }