libcasio/lib/fs/getfreemem.c

49 lines
1.7 KiB
C

/* ****************************************************************************
* fs/getfreemem.c -- get the available free space on a fs.
* Copyright (C) 2020 Alan "Lailouezzz" Le Bouder <alanlebouder@gmail.com>
*
* 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 "fs.h"
/**
* casio_getfreemem:
* Get the available free space on a fs.
*
* @arg fs the filesystem.
* @arg path the path.
* @arg capacity the pointer to capacity.
* @return the error code (0 if ok).
*/
int CASIO_EXPORT casio_getfreemem(casio_fs_t *fs, casio_path_t *path,
size_t *capacity)
{
int err; void *nat;
casio_fs_getfreemem_t *getfreemem;
/* Get the function */
getfreemem = fs->casio_fs_funcs.casio_fsfuncs_getfreemem;
if(!getfreemem) return (casio_error_op);
/* Make the native path. */
err = casio_make_native_path(fs, &nat, path);
if (err) return (err);
/* Make the operation. */
err = (*getfreemem)(fs->casio_fs_cookie, nat, capacity);
casio_free_native_path(fs, nat);
return (err);
}