diff options
Diffstat (limited to 'libfdisk/src/fdiskP.h')
| -rw-r--r-- | libfdisk/src/fdiskP.h | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/libfdisk/src/fdiskP.h b/libfdisk/src/fdiskP.h index 6459b3635..1cd8b4874 100644 --- a/libfdisk/src/fdiskP.h +++ b/libfdisk/src/fdiskP.h @@ -107,6 +107,33 @@ extern int fdisk_run_test(struct fdisk_test *tests, int argc, char *argv[]); typedef unsigned long long sector_t; + +/* + * Generic iterator + */ +struct fdisk_iter { + struct list_head *p; /* current position */ + struct list_head *head; /* start position */ + int direction; /* FDISK_ITER_{FOR,BACK}WARD */ +}; + +#define IS_ITER_FORWARD(_i) ((_i)->direction == FDISK_ITER_FORWARD) +#define IS_ITER_BACKWARD(_i) ((_i)->direction == FDISK_ITER_BACKWARD) + +#define FDISK_ITER_INIT(itr, list) \ + do { \ + (itr)->p = IS_ITER_FORWARD(itr) ? \ + (list)->next : (list)->prev; \ + (itr)->head = (list); \ + } while(0) + +#define FDISK_ITER_ITERATE(itr, res, restype, member) \ + do { \ + res = list_entry((itr)->p, restype, member); \ + (itr)->p = IS_ITER_FORWARD(itr) ? \ + (itr)->p->next : (itr)->p->prev; \ + } while(0) + /* * Partition types */ @@ -129,8 +156,6 @@ enum { #define fdisk_parttype_is_allocated(_x) ((_x) && ((_x)->flags & FDISK_PARTTYPE_ALLOCATED)) struct fdisk_partition { - struct fdisk_context *cxt; /* the current context */ - int refcount; /* reference counter */ size_t partno; /* partition number */ @@ -424,7 +449,8 @@ extern char *fdisk_partname(const char *dev, size_t partno); /* label.c */ extern int fdisk_probe_labels(struct fdisk_context *cxt); extern void fdisk_deinit_label(struct fdisk_label *lb); - +extern const struct fdisk_column *fdisk_label_get_column( + struct fdisk_label *lb, int id); /* ask.c */ extern int fdisk_ask_partnum(struct fdisk_context *cxt, size_t *partnum, int wantnew); |