libcsupport/src/sup_fs_mount_iterate.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @ingroup Termios Termios
0007  *
0008  * @brief Mount table entry visitor.
0009  */
0010
0011 /*
0012  * Copyright (c) 2012 embedded brains GmbH & Co. KG
0013  *
0014  * Redistribution and use in source and binary forms, with or without
0015  * modification, are permitted provided that the following conditions
0016  * are met:
0017  * 1. Redistributions of source code must retain the above copyright
0018  *    notice, this list of conditions and the following disclaimer.
0019  * 2. Redistributions in binary form must reproduce the above copyright
0020  *    notice, this list of conditions and the following disclaimer in the
0021  *    documentation and/or other materials provided with the distribution.
0022  *
0023  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0024  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0025  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0026  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0027  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0028  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0029  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0030  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0031  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0032  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0033  * POSSIBILITY OF SUCH DAMAGE.
0034  */
0035
0036 #ifdef HAVE_CONFIG_H
0037 #include "config.h"
0038 #endif
0039
0040 #include <rtems/libio_.h>
0041
0042 bool rtems_filesystem_mount_iterate(
0043   rtems_filesystem_mt_entry_visitor visitor,
0044   void *visitor_arg
0045 )
0046 {
0047   rtems_chain_control *chain = &rtems_filesystem_mount_table;
0048   rtems_chain_node *node = NULL;
0049   bool stop = false;
0050
0051   rtems_filesystem_mt_lock();
0052   for (
0053     node = rtems_chain_first( chain );
0054     !rtems_chain_is_tail( chain, node ) && !stop;
0055     node = rtems_chain_next( node )
0056   ) {
0057     const rtems_filesystem_mount_table_entry_t *mt_entry =
0058       (rtems_filesystem_mount_table_entry_t *) node;
0059
0060     stop = (*visitor)( mt_entry, visitor_arg );
0061   }
0062   rtems_filesystem_mt_unlock();
0063
0064   return stop;
0065 }