hdf5/src/H5Obogus.c

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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5Obogus.c
* Jan 21 2003
* Quincey Koziol <koziol@ncsa.uiuc.edu>
*
* Purpose: "bogus" message. This message is guaranteed to never
* be found in a valid HDF5 file and is only used to
* generate a test file which verifies the library's
* correct operation when parsing unknown object header
* messages.
*
*-------------------------------------------------------------------------
*/
#define H5O_PACKAGE /*suppress error about including H5Opkg */
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5MMprivate.h" /* Memory management */
#include "H5Opkg.h" /* Object headers */
#ifdef H5O_ENABLE_BOGUS
/* PRIVATE PROTOTYPES */
static void *H5O_bogus_decode(H5F_t *f, hid_t dxpl_id, H5O_t *open_oh,
unsigned mesg_flags, unsigned *ioflags, const uint8_t *p);
static herr_t H5O_bogus_encode(H5F_t *f, hbool_t disable_shared, uint8_t *p, const void *_mesg);
static size_t H5O_bogus_size(const H5F_t *f, hbool_t disable_shared, const void *_mesg);
static herr_t H5O_bogus_debug(H5F_t *f, hid_t dxpl_id, const void *_mesg, FILE * stream,
int indent, int fwidth);
/* This message derives from H5O message class */
const H5O_msg_class_t H5O_MSG_BOGUS[1] = {{
H5O_BOGUS_ID, /*message id number */
"bogus", /*message name for debugging */
0, /*native message size */
0, /* messages are sharable? */
H5O_bogus_decode, /*decode message */
H5O_bogus_encode, /*encode message */
NULL, /*copy the native value */
H5O_bogus_size, /*raw message size */
NULL, /*free internal memory */
NULL, /*free method */
NULL, /* file delete method */
2003-10-06 05:12:26 +08:00
NULL, /* link method */
NULL, /*set share method */
NULL, /*can share method */
NULL, /* pre copy native value to file */
NULL, /* copy native value to file */
NULL, /* post copy native value to file */
NULL, /* get creation index */
NULL, /* set creation index */
H5O_bogus_debug /*debug the message */
}};
/*-------------------------------------------------------------------------
* Function: H5O_bogus_decode
*
* Purpose: Decode a "bogus" message and return a pointer to a new
* native message struct.
*
* Return: Success: Ptr to new message in native struct.
*
* Failure: NULL
*
* Programmer: Quincey Koziol
* koziol@ncsa.uiuc.edu
* Jan 21 2003
*
*-------------------------------------------------------------------------
*/
static void *
H5O_bogus_decode(H5F_t UNUSED *f, hid_t UNUSED dxpl_id, H5O_t UNUSED *open_oh,
unsigned UNUSED mesg_flags, unsigned UNUSED *ioflags, const uint8_t *p)
{
H5O_bogus_t *mesg = NULL;
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_bogus_decode)
/* check args */
HDassert(f);
HDassert(p);
/* Allocate the bogus message */
if(NULL == (mesg = H5MM_calloc(sizeof(H5O_bogus_t))))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
/* decode */
UINT32DECODE(p, mesg->u);
/* Validate the bogus info */
if(mesg->u != H5O_BOGUS_VALUE)
HGOTO_ERROR(H5E_OHDR, H5E_BADVALUE, NULL, "invalid bogus value :-)")
/* Set return value */
ret_value = mesg;
done:
if(ret_value == NULL && mesg != NULL)
H5MM_xfree(mesg);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_bogus_decode() */
/*-------------------------------------------------------------------------
* Function: H5O_bogus_encode
*
* Purpose: Encodes a "bogus" message.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* koziol@ncsa.uiuc.edu
* Jan 21 2003
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_bogus_encode(H5F_t UNUSED *f, hbool_t UNUSED disable_shared, uint8_t *p, const void UNUSED *mesg)
{
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_bogus_encode)
/* check args */
HDassert(f);
HDassert(p);
HDassert(mesg);
/* encode */
UINT32ENCODE(p, H5O_BOGUS_VALUE);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O_bogus_encode() */
/*-------------------------------------------------------------------------
* Function: H5O_bogus_size
*
* Purpose: Returns the size of the raw message in bytes not
* counting the message typ or size fields, but only the data
* fields. This function doesn't take into account
* alignment.
*
* Return: Success: Message data size in bytes w/o alignment.
*
* Failure: Negative
*
* Programmer: Quincey Koziol
* koziol@ncsa.uiuc.edu
* Jan 21 2003
*
*-------------------------------------------------------------------------
*/
static size_t
H5O_bogus_size(const H5F_t UNUSED *f, hbool_t UNUSED disable_shared, const void UNUSED *mesg)
{
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_bogus_size)
FUNC_LEAVE_NOAPI(4)
} /* end H5O_bogus_size() */
/*-------------------------------------------------------------------------
* Function: H5O_bogus_debug
*
* Purpose: Prints debugging info for the message.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* koziol@ncsa.uiuc.edu
* Jan 21 2003
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_bogus_debug(H5F_t UNUSED *f, hid_t UNUSED dxpl_id, const void *_mesg, FILE *stream,
int indent, int fwidth)
{
const H5O_bogus_t *mesg = (const H5O_bogus_t *)_mesg;
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_bogus_debug)
/* check args */
HDassert(f);
HDassert(mesg);
HDassert(stream);
HDassert(indent >= 0);
HDassert(fwidth >= 0);
HDfprintf(stream, "%*s%-*s `%u'\n", indent, "", fwidth,
"Bogus Value:", mesg->u);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O_bogus_debug() */
#endif /* H5O_ENABLE_BOGUS */