diff options
| author | Karel Zak | 2014-10-15 12:17:40 +0200 |
|---|---|---|
| committer | Karel Zak | 2014-10-15 12:17:40 +0200 |
| commit | ecf40cda764496d3d1b29435ea64a65335ae0acf (patch) | |
| tree | 9ef1d00a3906fd495194b88ca5023c9729353df0 /libfdisk/src/fdiskP.h | |
| parent | tests: check for wipefs and helpers in fdisk tests (diff) | |
| download | kernel-qcow2-util-linux-ecf40cda764496d3d1b29435ea64a65335ae0acf.tar.gz kernel-qcow2-util-linux-ecf40cda764496d3d1b29435ea64a65335ae0acf.tar.xz kernel-qcow2-util-linux-ecf40cda764496d3d1b29435ea64a65335ae0acf.zip | |
libfdisk: make it possible to use zero for size and start
The zero may be valid size and start of the partition. This patch
introduces:
fdisk_partition_has_start()
fdisk_partition_has_size()
fdisk_partition_unset_size()
fdisk_partition_unset_start()
to make it possible to work with zero. The feature is internally
implemented by magic constant ((type) -1) for undefined sizes and
offsets.
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'libfdisk/src/fdiskP.h')
| -rw-r--r-- | libfdisk/src/fdiskP.h | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/libfdisk/src/fdiskP.h b/libfdisk/src/fdiskP.h index 253c515f8..7822466a2 100644 --- a/libfdisk/src/fdiskP.h +++ b/libfdisk/src/fdiskP.h @@ -113,6 +113,7 @@ enum { struct fdisk_partition { int refcount; /* reference counter */ + size_t partno; /* partition number */ size_t parent_partno; /* for logical partitions */ @@ -136,24 +137,23 @@ struct fdisk_partition { uint64_t bsize; uint64_t cpg; - char *start_addr; /* start C/H/S in string */ - char *end_addr; /* end C/H/S in string */ + char *start_chs; /* start C/H/S in string */ + char *end_chs; /* end C/H/S in string */ - int boot; /* MBR only: 1 = yes, 0 = no, -1 undefined */ + unsigned int boot; /* MBR: bootable */ - unsigned int partno_follow_default : 1, /* use default partno */ - start_follow_default : 1, /* use default start */ + unsigned int container : 1, /* container partition (e.g. extended partition) */ end_follow_default : 1, /* use default end */ + freespace : 1, /* this is free space */ + partno_follow_default : 1, /* use default partno */ size_explicit : 1, /* don't align the size */ - freespace : 1, /* this is free space */ - container : 1, /* container partition (e.g. extended partition) */ - wholedisk : 1, /* special system partition */ - used : 1; /* partition already used */ + start_follow_default : 1, /* use default start */ + used : 1, /* partition already used */ + wholedisk : 1; /* special system partition */ }; -#define FDISK_EMPTY_PARTNO ((size_t) -1) -#define FDISK_EMPTY_PARTITION { .partno = FDISK_EMPTY_PARTNO } -#define FDISK_EMPTY_BOOTFLAG (-1) +#define FDISK_INIT_UNDEF(_x) ((_x) = (__typeof__(_x)) -1) +#define FDISK_IS_UNDEF(_x) ((_x) == (__typeof__(_x)) -1) struct fdisk_table { struct list_head parts; /* partitions */ |