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libcasio/lib/log/iter.c

90 lines
2.2 KiB
C

/* ****************************************************************************
* log/iter.c -- iterate on log levels.
* Copyright (C) 2016-2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
*
* This file is part of libcasio.
* libcasio 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 3.0 of the License,
* or (at your option) any later version.
*
* libcasio 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 libcasio; if not, see <http://www.gnu.org/licenses/>.
* ************************************************************************* */
#include "log.h"
CASIO_LOCAL const char *log_levels[] = {
"none",
#if !defined(LIBCASIO_DISABLED_LOG)
"info",
"warn",
"error",
"fatal",
#endif
NULL
};
/* `next_log()`: next log level. */
CASIO_LOCAL int CASIO_EXPORT next_log(const char ***cookie, const char **level)
{
if (!**cookie)
return (casio_error_iter);
*level = *(*cookie)++;
return (0);
}
/* `end_log_iter()`: end the iteration log. */
CASIO_LOCAL void CASIO_EXPORT end_log_iter(char const ***cookie)
{
free(cookie);
}
/* Functions. */
CASIO_LOCAL casio_iter_funcs_t log_funcs = {
(casio_next_t *)next_log,
NULL,
(casio_end_t *)end_log_iter
};
/* `casio_iter_log()`: make a loglevels iterator. */
int CASIO_EXPORT casio_iter_log(casio_iter_t **iterp)
{
const char ***ptr;
ptr = malloc(sizeof(char **));
if (!ptr)
return (casio_error_alloc);
*ptr = log_levels;
return (casio_iter(iterp, (void *)ptr, &log_funcs));
}
/* ---
* List logs, per compatibility.
* --- */
/* `casio_listlog()`: list log levels. */
void CASIO_EXPORT casio_listlog(casio_log_list_t *callback, void *cookie)
{
casio_iter_t *iter;
const char *level;
if (casio_iter_log(&iter))
return ;
while (casio_next_log(iter, &level))
(*callback)(cookie, level);
casio_end(iter);
}