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| author | Quincey Koziol <koziol@hdfgroup.org> | 2007-03-04 04:28:09 (GMT) |
|---|---|---|
| committer | Quincey Koziol <koziol@hdfgroup.org> | 2007-03-04 04:28:09 (GMT) |
| commit | 44f312b183305cf37295595bfd3f5df40fc637be (patch) | |
| tree | 4d2fe91e2e756fc157d99047a10ea2ce2e755b2f /src/H5Opkg.h | |
| parent | caa6d5dabc47494efd9930c2c1f043e357347328 (diff) | |
| download | hdf5-44f312b183305cf37295595bfd3f5df40fc637be.zip hdf5-44f312b183305cf37295595bfd3f5df40fc637be.tar.gz hdf5-44f312b183305cf37295595bfd3f5df40fc637be.tar.bz2 | |
[svn-r13449] Description:
Add object creation property (H5P[s|g]et_obj_track_times) to disable
storing timestamps on objects, which makes the object's header size smaller.
Also, added object header status flags to H5O_info_t struct (for
H5Oget_info/H5Oget_info_by_idx) and cleaned up other field names in the
struct as well.
Tested on:
FreeBSD/32 6.2 (duty)
Mac OS X/32 10.4.8 (amazon)
Diffstat (limited to 'src/H5Opkg.h')
| -rw-r--r-- | src/H5Opkg.h | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/src/H5Opkg.h b/src/H5Opkg.h index 6ed310e..6825210 100644 --- a/src/H5Opkg.h +++ b/src/H5Opkg.h @@ -40,7 +40,7 @@ #define H5O_VERSION_1 1 /* Revised version - leaves out reserved bytes and alignment padding, and adds - * magic number as prefix and checksum + * magic number as prefix and checksum as suffix for all chunks. */ #define H5O_VERSION_2 2 @@ -78,6 +78,9 @@ /* Size of checksum (on disk) */ #define H5O_SIZEOF_CHKSUM 4 +/* Default value for object header status flags */ +#define H5O_CRT_OHDR_FLAGS_DEF H5O_HDR_STORE_TIMES + /* * Size of object header prefix. */ @@ -95,10 +98,12 @@ 1 + /*flags */ \ 2 + /*number of messages */ \ 4 + /*reference count */ \ - 4 + /*access time */ \ - 4 + /*modification time */ \ - 4 + /*change time */ \ - 4 + /*birth time */ \ + (((O)->flags & H5O_HDR_STORE_TIMES) ? ( \ + 4 + /*access time */ \ + 4 + /*modification time */ \ + 4 + /*change time */ \ + 4 /*birth time */ \ + ) : 0) + \ 2 + /*max compact attributes */ \ 2 + /*min dense attributes */ \ (O)->sizeof_size + /*# of attributes */ \ @@ -231,9 +236,9 @@ struct H5O_t { size_t sizeof_addr; /* Size of file addresses */ /* Object information (stored) */ - unsigned version; /*version number */ unsigned nlink; /*link count */ - unsigned flags; /*flags */ + uint8_t version; /*version number */ + uint8_t flags; /*flags */ /* Time information (stored, for versions > 1) */ time_t atime; /*access time */ |