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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-10-23 08:21:26 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-10-23 10:21:39 +0200 |
| commit | cf4f962cc0debb56a1a1c6f6ed844adeb09599e4 (patch) | |
| tree | d402f419bb450053296c671c3106ecf4980fb230 /cpukit/libfs/src/dosfs/fat_file.h | |
| parent | Revert "fstests/mdosfs_fstime: Remove test" (diff) | |
| download | rtems-cf4f962cc0debb56a1a1c6f6ed844adeb09599e4.tar.bz2 | |
dosfs: Write meta-data only if it changed
Diffstat (limited to 'cpukit/libfs/src/dosfs/fat_file.h')
| -rw-r--r-- | cpukit/libfs/src/dosfs/fat_file.h | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/cpukit/libfs/src/dosfs/fat_file.h b/cpukit/libfs/src/dosfs/fat_file.h index b162d8a0fd..1a75cf75ce 100644 --- a/cpukit/libfs/src/dosfs/fat_file.h +++ b/cpukit/libfs/src/dosfs/fat_file.h @@ -93,10 +93,19 @@ typedef struct fat_file_fd_s } fat_file_fd_t; -#define FAT_FILE_REMOVED 0x01 +#define FAT_FILE_REMOVED 0x01 -#define FAT_FILE_IS_REMOVED(p)\ - (((p)->flags & FAT_FILE_REMOVED) ? 1 : 0) +#define FAT_FILE_META_DATA_CHANGED 0x02 + +static inline bool FAT_FILE_IS_REMOVED(const fat_file_fd_t *fat_fd) +{ + return (fat_fd->flags & FAT_FILE_REMOVED) != 0; +} + +static inline bool FAT_FILE_HAS_META_DATA_CHANGED(const fat_file_fd_t *fat_fd) +{ + return (fat_fd->flags & FAT_FILE_META_DATA_CHANGED) != 0; +} /* ioctl macros */ #define F_CLU_NUM 0x01 @@ -140,20 +149,36 @@ fat_construct_key( ((pos->ofs >> 5) & (FAT_DIRENTRIES_PER_SEC512 - 1)) ); } +static inline void +fat_file_set_first_cluster_num(fat_file_fd_t *fat_fd, uint32_t cln) +{ + fat_fd->cln = cln; + fat_fd->flags |= FAT_FILE_META_DATA_CHANGED; +} + +static inline void fat_file_set_file_size(fat_file_fd_t *fat_fd, uint32_t s) +{ + fat_fd->fat_file_size = s; + fat_fd->flags |= FAT_FILE_META_DATA_CHANGED; +} + static inline void fat_file_set_ctime(fat_file_fd_t *fat_fd, time_t t) { fat_fd->ctime = t; + fat_fd->flags |= FAT_FILE_META_DATA_CHANGED; } static inline void fat_file_set_mtime(fat_file_fd_t *fat_fd, time_t t) { fat_fd->mtime = t; + fat_fd->flags |= FAT_FILE_META_DATA_CHANGED; } static inline void fat_file_set_ctime_mtime(fat_file_fd_t *fat_fd, time_t t) { fat_fd->ctime = t; fat_fd->mtime = t; + fat_fd->flags |= FAT_FILE_META_DATA_CHANGED; } /* Prototypes for "fat-file" operations */ |