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Fixed big-endian support for entry structures

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This commit is contained in:
Christopher Haster
2018-03-15 21:26:03 -05:00
parent 9273ac708b
commit fb23044872
1 changed files with 26 additions and 15 deletions
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41
lfs.c
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@@ -349,11 +349,10 @@ static void lfs_entry_fromle32(struct lfs_disk_entry *d) {
d->u.dir[1] = lfs_fromle32(d->u.dir[1]); d->u.dir[1] = lfs_fromle32(d->u.dir[1]);
} }
// TODO static void lfs_entry_tole32(struct lfs_disk_entry *d) {
//static void lfs_entry_tole32(struct lfs_disk_entry *d) { d->u.dir[0] = lfs_tole32(d->u.dir[0]);
// d->u.dir[0] = lfs_tole32(d->u.dir[0]); d->u.dir[1] = lfs_tole32(d->u.dir[1]);
// d->u.dir[1] = lfs_tole32(d->u.dir[1]); }
//}
static void lfs_superblock_fromle32(struct lfs_disk_superblock *d) { static void lfs_superblock_fromle32(struct lfs_disk_superblock *d) {
d->root[0] = lfs_fromle32(d->root[0]); d->root[0] = lfs_fromle32(d->root[0]);
@@ -683,7 +682,10 @@ static int lfs_dir_append(lfs_t *lfs, lfs_dir_t *dir,
r->off += entry->off; r->off += entry->off;
} }
return lfs_dir_commit(lfs, dir, regions); lfs_entry_tole32(&entry->d);
int err = lfs_dir_commit(lfs, dir, regions);
lfs_entry_fromle32(&entry->d);
return err;
} }
// we need to allocate a new dir block // we need to allocate a new dir block
@@ -701,7 +703,9 @@ static int lfs_dir_append(lfs_t *lfs, lfs_dir_t *dir,
r->off += entry->off; r->off += entry->off;
} }
lfs_entry_tole32(&entry->d);
err = lfs_dir_commit(lfs, dir, regions); err = lfs_dir_commit(lfs, dir, regions);
lfs_entry_fromle32(&entry->d);
if (err) { if (err) {
return err; return err;
} }
@@ -783,7 +787,9 @@ static int lfs_dir_update(lfs_t *lfs, lfs_dir_t *dir,
r->off += entry->off; r->off += entry->off;
} }
lfs_entry_tole32(&entry->d);
int err = lfs_dir_commit(lfs, dir, regions); int err = lfs_dir_commit(lfs, dir, regions);
lfs_entry_fromle32(&entry->d);
if (err) { if (err) {
return err; return err;
} }
@@ -807,32 +813,35 @@ static int lfs_dir_update(lfs_t *lfs, lfs_dir_t *dir,
} }
} else { } else {
lfs_dir_t olddir = *dir; lfs_dir_t olddir = *dir;
lfs_off_t oldoff = entry->off; lfs_entry_t oldentry = {
lfs_size_t oldsize = entry->size - diff; .off = entry->off,
.size = entry->size - diff,
.d.type = entry->d.type | LFS_STRUCT_MOVED,
};
// mark as moving // mark as moving
entry->d.type |= LFS_STRUCT_MOVED;
int err = lfs_dir_commit(lfs, &olddir, int err = lfs_dir_commit(lfs, &olddir,
&(struct lfs_region){ &(struct lfs_region){
oldoff, 0, oldentry.off, 0,
lfs_commit_mem, &entry->d.type, 1}); lfs_commit_mem, &oldentry.d.type, 1});
if (err) { if (err) {
return err; return err;
} }
entry->d.type &= LFS_STRUCT_MOVED;
// append updated entry // append updated entry
lfs_entry_tole32(&entry->d);
err = lfs_dir_append(lfs, dir, entry, err = lfs_dir_append(lfs, dir, entry,
&(struct lfs_region){ &(struct lfs_region){
0, +entry->size, 0, +entry->size,
lfs_commit_disk, &(struct lfs_commit_disk){ lfs_commit_disk, &(struct lfs_commit_disk){
olddir.pair[0], entry->off, regions}, oldsize}); olddir.pair[0], entry->off, regions}, oldentry.size});
lfs_entry_fromle32(&entry->d);
if (err) { if (err) {
return err; return err;
} }
// remove old entry // remove old entry
err = lfs_dir_remove(lfs, dir, &(lfs_entry_t){oldoff, oldsize}); err = lfs_dir_remove(lfs, dir, &oldentry);
if (err) { if (err) {
return err; return err;
} }
@@ -1645,10 +1654,12 @@ int lfs_file_sync(lfs_t *lfs, lfs_file_t *file) {
entry.d.u.file.head = file->head; entry.d.u.file.head = file->head;
entry.d.u.file.size = file->size; entry.d.u.file.size = file->size;
lfs_entry_tole32(&entry.d);
err = lfs_dir_update(lfs, &cwd, &entry, err = lfs_dir_update(lfs, &cwd, &entry,
&(struct lfs_region){ &(struct lfs_region){
0, 0, 0, 0,
lfs_commit_mem, &entry.d, sizeof(entry.d)}); lfs_commit_mem, &entry.d, sizeof(entry.d)});
lfs_entry_fromle32(&entry.d);
if (err) { if (err) {
return err; return err;
} }
@@ -2073,7 +2084,7 @@ int lfs_rename(lfs_t *lfs, const char *oldpath, const char *newpath) {
err = lfs_dir_update(lfs, &oldcwd, &oldentry, err = lfs_dir_update(lfs, &oldcwd, &oldentry,
&(struct lfs_region){ &(struct lfs_region){
0, 0, 0, 0,
lfs_commit_mem, &oldentry.d, sizeof(oldentry.d)}); lfs_commit_mem, &oldentry.d.type, 1});
if (err) { if (err) {
return err; return err;
} }