83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
/* ****************************************************************************
|
|
* fs/pathnode.c -- manage path nodes.
|
|
* Copyright (C) 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 "fs.h"
|
|
|
|
/**
|
|
* casio_make_pathnode:
|
|
* Make a path node.
|
|
*
|
|
* @arg pnode the path node to make.
|
|
* @arg size the path node data size.
|
|
* @return the error code (0 if ok).
|
|
*/
|
|
|
|
int CASIO_EXPORT casio_make_pathnode(casio_pathnode_t **pnode, size_t size)
|
|
{
|
|
casio_pathnode_t *node;
|
|
|
|
/* Allocate the node. */
|
|
*pnode = casio_alloc(offsetof(casio_pathnode_t,
|
|
casio_pathnode_name) + size, 1);
|
|
node = *pnode; if (!node) return (casio_error_alloc);
|
|
|
|
/* Set the static attributes. */
|
|
node->casio_pathnode_next = NULL;
|
|
node->casio_pathnode_size = size;
|
|
|
|
/* Everything went well! */
|
|
return (0);
|
|
}
|
|
|
|
/**
|
|
* casio_free_pathnode:
|
|
* Free a path node.
|
|
*
|
|
* @arg node the path node to free.
|
|
* @return the error code (0 if ok).
|
|
*/
|
|
|
|
void CASIO_EXPORT casio_free_pathnode(casio_pathnode_t *node)
|
|
{
|
|
casio_free(node);
|
|
}
|
|
|
|
/**
|
|
* casio_duplicate_pathnode:
|
|
* Duplicate a path node.
|
|
*
|
|
* @arg new the path node to make.
|
|
* @arg old the path node to copy.
|
|
* @return the error code (0 if ok).
|
|
*/
|
|
|
|
int CASIO_EXPORT casio_duplicate_pathnode(casio_pathnode_t **new,
|
|
const casio_pathnode_t *old)
|
|
{
|
|
int err; size_t sz;
|
|
|
|
/* Make the new path node. */
|
|
sz = old->casio_pathnode_size;
|
|
err = casio_make_pathnode(new, sz);
|
|
if (err) return (err);
|
|
|
|
/* Copy the data and return. */
|
|
memcpy((*new)->casio_pathnode_name, old->casio_pathnode_name, sz);
|
|
return (0);
|
|
}
|