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Add lfs_mlist_append/remove helper

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This commit is contained in:
Noah Gorny
2020-11-18 00:20:34 +02:00
committed by Christopher Haster
parent 6303558aee
commit 008ebc37df
1 changed files with 18 additions and 16 deletions
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34
lfs.c
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@@ -422,6 +422,20 @@ static inline bool lfs_mlist_isopen(struct lfs_mlist *head,
return false;
}
static inline void lfs_mlist_remove(lfs_t *lfs, struct lfs_mlist *mlist) {
for (struct lfs_mlist **p = &lfs->mlist; *p; p = &(*p)->next) {
if (*p == mlist) {
*p = (*p)->next;
break;
}
}
}
static inline void lfs_mlist_append(lfs_t *lfs, struct lfs_mlist *mlist) {
mlist->next = lfs->mlist;
lfs->mlist = mlist;
}
/// Internal operations predeclared here ///
static int lfs_dir_commit(lfs_t *lfs, lfs_mdir_t *dir,
@@ -2062,8 +2076,7 @@ int lfs_dir_open(lfs_t *lfs, lfs_dir_t *dir, const char *path) {
// add to list of mdirs
dir->type = LFS_TYPE_DIR;
dir->next = (lfs_dir_t*)lfs->mlist;
lfs->mlist = (struct lfs_mlist*)dir;
lfs_mlist_append(lfs, (struct lfs_mlist *)dir);
LFS_TRACE("lfs_dir_open -> %d", 0);
return 0;
@@ -2072,12 +2085,7 @@ int lfs_dir_open(lfs_t *lfs, lfs_dir_t *dir, const char *path) {
int lfs_dir_close(lfs_t *lfs, lfs_dir_t *dir) {
LFS_TRACE("lfs_dir_close(%p, %p)", (void*)lfs, (void*)dir);
// remove from list of mdirs
for (struct lfs_mlist **p = &lfs->mlist; *p; p = &(*p)->next) {
if (*p == (struct lfs_mlist*)dir) {
*p = (*p)->next;
break;
}
}
lfs_mlist_remove(lfs, (struct lfs_mlist *)dir);
LFS_TRACE("lfs_dir_close -> %d", 0);
return 0;
@@ -2428,8 +2436,7 @@ int lfs_file_opencfg(lfs_t *lfs, lfs_file_t *file,
// get id, add to list of mdirs to catch update changes
file->type = LFS_TYPE_REG;
file->next = (lfs_file_t*)lfs->mlist;
lfs->mlist = (struct lfs_mlist*)file;
lfs_mlist_append(lfs, (struct lfs_mlist *)file);
if (tag == LFS_ERR_NOENT) {
if (!(flags & LFS_O_CREAT)) {
@@ -2565,12 +2572,7 @@ int lfs_file_close(lfs_t *lfs, lfs_file_t *file) {
int err = lfs_file_sync(lfs, file);
// remove from list of mdirs
for (struct lfs_mlist **p = &lfs->mlist; *p; p = &(*p)->next) {
if (*p == (struct lfs_mlist*)file) {
*p = (*p)->next;
break;
}
}
lfs_mlist_remove(lfs, (struct lfs_mlist*)file);
// clean up memory
if (!file->cfg->buffer) {