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Fix lfs_file_seek doesn't update cache properties correctly in readonly mode. Invalidate cache to fix it.

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This commit is contained in:
ondrap
2022-01-31 13:37:33 +01:00
committed by Christopher Haster
parent ead50807f1
commit e955b9f65d
1 changed files with 10 additions and 2 deletions
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12
lfs.c
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@@ -2730,14 +2730,18 @@ static int lfs_file_outline(lfs_t *lfs, lfs_file_t *file) {
}
#endif
#ifndef LFS_READONLY
static int lfs_file_flush(lfs_t *lfs, lfs_file_t *file) {
static void lfs_file_invalidate_reading_flag(lfs_t *lfs, lfs_file_t *file) {
if (file->flags & LFS_F_READING) {
if (!(file->flags & LFS_F_INLINE)) {
lfs_cache_drop(lfs, &file->cache);
}
file->flags &= ~LFS_F_READING;
}
}
#ifndef LFS_READONLY
static int lfs_file_flush(lfs_t *lfs, lfs_file_t *file) {
lfs_file_invalidate_reading_flag(lfs, file);
if (file->flags & LFS_F_WRITING) {
lfs_off_t pos = file->pos;
@@ -3087,6 +3091,10 @@ static lfs_soff_t lfs_file_rawseek(lfs_t *lfs, lfs_file_t *file,
if (err) {
return err;
}
#else
// Seek doesn't update cache parameters properly.
// It has to be invalidated otherwise next read will return incorrect values.
lfs_file_invalidate_reading_flag(lfs,file);
#endif
// update pos