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| author | Frank Baker <fbaker@hdfgroup.org> | 2000-08-25 17:42:24 (GMT) |
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| committer | Frank Baker <fbaker@hdfgroup.org> | 2000-08-25 17:42:24 (GMT) |
| commit | 2e8cd59163cda6b051eae53aac58f54e0a9e9351 (patch) | |
| tree | 5d9058906b7a9a39b0815476d7daea0229c67eb4 /doc/html/TechNotes/ObjectHeader.html | |
| parent | 3ff571ab58fedf8dbb20ac8e1eea251ffb343f9e (diff) | |
| download | hdf5-2e8cd59163cda6b051eae53aac58f54e0a9e9351.zip hdf5-2e8cd59163cda6b051eae53aac58f54e0a9e9351.tar.gz hdf5-2e8cd59163cda6b051eae53aac58f54e0a9e9351.tar.bz2 | |
[svn-r2482] Bringing "HDF5 Technical Notes" into development branch (from R1.2 branch)
Diffstat (limited to 'doc/html/TechNotes/ObjectHeader.html')
| -rw-r--r-- | doc/html/TechNotes/ObjectHeader.html | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/doc/html/TechNotes/ObjectHeader.html b/doc/html/TechNotes/ObjectHeader.html new file mode 100644 index 0000000..1335d23 --- /dev/null +++ b/doc/html/TechNotes/ObjectHeader.html @@ -0,0 +1,72 @@ +<html> +<body> + +<h1>Object Headers</h1> + +<pre> + +haddr_t +H5O_new (hdf5_file_t *f, intn nrefs, size_t size_hint) + + Creates a new empty object header and returns its address. + The SIZE_HINT is the initial size of the data portion of the + object header and NREFS is the number of symbol table entries + that reference this object header (normally one). + + If SIZE_HINT is too small, then at least some default amount + of space is allocated for the object header. + +intn /*num remaining links */ +H5O_link (hdf5_file_t *f, /*file containing header */ + haddr_t addr, /*header file address */ + intn adjust) /*link adjustment amount */ + + +size_t +H5O_sizeof (hdf5_file_t *f, /*file containing header */ + haddr_t addr, /*header file address */ + H5O_class_t *type, /*message type or H5O_ANY */ + intn sequence) /*sequence number, usually zero */ + + Returns the size of a particular instance of a message in an + object header. When an object header has more than one + instance of a particular message type, then SEQUENCE indicates + which instance to return. + +void * +H5O_read (hdf5_file_t *f, /*file containing header */ + haddr_t addr, /*header file address */ + H5G_entry_t *ent, /*optional symbol table entry */ + H5O_class_t *type, /*message type or H5O_ANY */ + intn sequence, /*sequence number, usually zero */ + size_t size, /*size of output message */ + void *mesg) /*output buffer */ + + Reads a message from the object header into memory. + +const void * +H5O_peek (hdf5_file_t *f, /*file containing header */ + haddr_t addr, /*header file address */ + H5G_entry_t *ent, /*optional symbol table entry */ + H5O_class_t *type, /*type of message or H5O_ANY */ + intn sequence) /*sequence number, usually zero */ + +haddr_t /*new heap address */ +H5O_modify (hdf5_file_t *f, /*file containing header */ + haddr_t addr, /*header file address */ + H5G_entry_t *ent, /*optional symbol table entry */ + hbool_t *ent_modified, /*entry modification flag */ + H5O_class_t *type, /*message type */ + intn overwrite, /*sequence number or -1 */ + void *mesg) /*the message */ + + +=========================================== +Last Modified: 8 July 1998 (technical content) +Last Modified: 28 April 2000 (included in HDF5 Technical Notes) +HDF Help Desk: hdfhelp@ncsa.uiuc.edu + +</pre> + +</body> +</html> |