mirror of
https://github.com/HDFGroup/hdf5.git
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61 lines
2.1 KiB
Plaintext
61 lines
2.1 KiB
Plaintext
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OBJECT HEADERS
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--------------
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haddr_t
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H5O_new (hdf5_file_t *f, intn nrefs, size_t size_hint)
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Creates a new empty object header and returns its address.
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The SIZE_HINT is the initial size of the data portion of the
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object header and NREFS is the number of symbol table entries
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that reference this object header (normally one).
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If SIZE_HINT is too small, then at least some default amount
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of space is allocated for the object header.
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intn /*num remaining links */
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H5O_link (hdf5_file_t *f, /*file containing header */
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haddr_t addr, /*header file address */
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intn adjust) /*link adjustment amount */
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size_t
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H5O_sizeof (hdf5_file_t *f, /*file containing header */
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haddr_t addr, /*header file address */
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H5O_class_t *type, /*message type or H5O_ANY */
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intn sequence) /*sequence number, usually zero */
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Returns the size of a particular instance of a message in an
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object header. When an object header has more than one
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instance of a particular message type, then SEQUENCE indicates
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which instance to return.
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void *
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H5O_read (hdf5_file_t *f, /*file containing header */
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haddr_t addr, /*header file address */
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H5G_entry_t *ent, /*optional symbol table entry */
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H5O_class_t *type, /*message type or H5O_ANY */
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intn sequence, /*sequence number, usually zero */
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size_t size, /*size of output message */
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void *mesg) /*output buffer */
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Reads a message from the object header into memory.
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const void *
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H5O_peek (hdf5_file_t *f, /*file containing header */
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haddr_t addr, /*header file address */
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H5G_entry_t *ent, /*optional symbol table entry */
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H5O_class_t *type, /*type of message or H5O_ANY */
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intn sequence) /*sequence number, usually zero */
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haddr_t /*new heap address */
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H5O_modify (hdf5_file_t *f, /*file containing header */
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haddr_t addr, /*header file address */
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H5G_entry_t *ent, /*optional symbol table entry */
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hbool_t *ent_modified, /*entry modification flag */
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H5O_class_t *type, /*message type */
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intn overwrite, /*sequence number or -1 */
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void *mesg) /*the message */
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