include/rtems/imfsimpl.h

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @brief This header file contains interfaces used by the implementation of
0007  *   the In-Memory File System.
0008  */
0009
0010 /*
0011  * Copyright (C) 2013, 2018 embedded brains GmbH & Co. KG
0012  *
0013  * Redistribution and use in source and binary forms, with or without
0014  * modification, are permitted provided that the following conditions
0015  * are met:
0016  * 1. Redistributions of source code must retain the above copyright
0017  *    notice, this list of conditions and the following disclaimer.
0018  * 2. Redistributions in binary form must reproduce the above copyright
0019  *    notice, this list of conditions and the following disclaimer in the
0020  *    documentation and/or other materials provided with the distribution.
0021  *
0022  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0023  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0024  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0025  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0026  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0027  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0028  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0029  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0030  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0031  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0032  * POSSIBILITY OF SUCH DAMAGE.
0033  */
0034
0035 #ifndef _RTEMS_IMFSIMPL_H
0036 #define _RTEMS_IMFSIMPL_H
0037
0038 #include <rtems/imfs.h>
0039 #include <rtems/score/timecounter.h>
0040
0041 #ifdef __cplusplus
0042 extern "C" {
0043 #endif
0044
0045 /**
0046  * @addtogroup IMFS
0047  *
0048  * @{
0049  */
0050
0051 static inline time_t _IMFS_get_time( void )
0052 {
0053   struct bintime now;
0054
0055   /* Use most efficient way to get the time in seconds (CLOCK_REALTIME) */
0056   _Timecounter_Getbintime( &now );
0057
0058   return now.sec;
0059 }
0060
0061 static inline void IMFS_update_atime( IMFS_jnode_t *jnode )
0062 {
0063   jnode->stat_atime = _IMFS_get_time();
0064 }
0065
0066 static inline void IMFS_update_mtime( IMFS_jnode_t *jnode )
0067 {
0068   jnode->stat_mtime = _IMFS_get_time();
0069 }
0070
0071 static inline void IMFS_update_ctime( IMFS_jnode_t *jnode )
0072 {
0073   jnode->stat_ctime = _IMFS_get_time();
0074 }
0075
0076 static inline void IMFS_mtime_ctime_update( IMFS_jnode_t *jnode )
0077 {
0078   time_t now;
0079
0080   now = _IMFS_get_time();
0081
0082   jnode->stat_mtime = now;
0083   jnode->stat_ctime = now;
0084 }
0085
0086 /** @} */
0087
0088 #ifdef __cplusplus
0089 }
0090 #endif
0091
0092 #endif /* _RTEMS_IMFSIMPL_H */