/src/hdf5/src/H5Oginfo.c

Source (jump to first uncovered line)
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * 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 COPYING file, which can be found at the root of the source code       *
 * distribution tree, or in https://www.hdfgroup.org/licenses.               *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*-------------------------------------------------------------------------
 *
 * Created:             H5Oginfo.c
 *
 * Purpose:             Group Information messages
 *
 *-------------------------------------------------------------------------
 */

#include "H5Omodule.h" /* This source code file is part of the H5O module */

#include "H5private.h"   /* Generic Functions     */
#include "H5Eprivate.h"  /* Error handling        */
#include "H5FLprivate.h" /* Free lists                           */
#include "H5Opkg.h"      /* Object headers      */

/* PRIVATE PROTOTYPES */
static void  *H5O__ginfo_decode(H5F_t *f, H5O_t *open_oh, unsigned mesg_flags, unsigned *ioflags,
                                size_t p_size, const uint8_t *p);
static herr_t H5O__ginfo_encode(H5F_t *f, bool disable_shared, size_t H5_ATTR_UNUSED p_size, uint8_t *p,
                                const void *_mesg);
static void  *H5O__ginfo_copy(const void *_mesg, void *_dest);
static size_t H5O__ginfo_size(const H5F_t *f, bool disable_shared, const void *_mesg);
static herr_t H5O__ginfo_free(void *_mesg);
static herr_t H5O__ginfo_debug(H5F_t *f, const void *_mesg, FILE *stream, int indent, int fwidth);

/* This message derives from H5O message class */
const H5O_msg_class_t H5O_MSG_GINFO[1] = {{
    H5O_GINFO_ID,        /*message id number             */
    "ginfo",             /*message name for debugging    */
    sizeof(H5O_ginfo_t), /*native message size           */
    0,                   /* messages are shareable?       */
    H5O__ginfo_decode,   /*decode message                */
    H5O__ginfo_encode,   /*encode message                */
    H5O__ginfo_copy,     /*copy the native value         */
    H5O__ginfo_size,     /*size of symbol table entry    */
    NULL,                /*default reset method          */
    H5O__ginfo_free,     /* free method     */
    NULL,                /* file delete method    */
    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__ginfo_debug     /*debug the message             */
}};

/* Current version of group info information */
#define H5O_GINFO_VERSION 0

/* Flags for group info flag encoding */
#define H5O_GINFO_STORE_PHASE_CHANGE   0x01
#define H5O_GINFO_STORE_EST_ENTRY_INFO 0x02
#define H5O_GINFO_ALL_FLAGS            (H5O_GINFO_STORE_PHASE_CHANGE | H5O_GINFO_STORE_EST_ENTRY_INFO)

/* Declare a free list to manage the H5O_ginfo_t struct */
H5FL_DEFINE_STATIC(H5O_ginfo_t);

/*-------------------------------------------------------------------------
 * Function:    H5O__ginfo_decode
 *
 * Purpose:     Decode a message and return a pointer to
 *              a newly allocated one.
 *
 * Return:      Success:    Pointer to new message in native order
 *              Failure:    NULL
 *-------------------------------------------------------------------------
 */
static void *
H5O__ginfo_decode(H5F_t H5_ATTR_UNUSED *f, H5O_t H5_ATTR_UNUSED *open_oh, unsigned H5_ATTR_UNUSED mesg_flags,
                  unsigned H5_ATTR_UNUSED *ioflags, size_t p_size, const uint8_t *p)
{
    H5O_ginfo_t   *ginfo = NULL;               /* Pointer to group information message */
    unsigned char  flags;                      /* Flags for encoding group info */
    const uint8_t *p_end     = p + p_size - 1; /* End of the p buffer */
    void          *ret_value = NULL;

    FUNC_ENTER_PACKAGE

    assert(f);
    assert(p);

    /* Version of message */
    if (H5_IS_BUFFER_OVERFLOW(p, 1, p_end))
        HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "ran off end of input buffer while decoding");
    if (*p++ != H5O_GINFO_VERSION)
        HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, NULL, "bad version number for message");

    /* Allocate space for message */
    if (NULL == (ginfo = H5FL_CALLOC(H5O_ginfo_t)))
        HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed");

    /* Get the flags for the group */
    if (H5_IS_BUFFER_OVERFLOW(p, 1, p_end))
        HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "ran off end of input buffer while decoding");

    flags = *p++;
    if (flags & ~H5O_GINFO_ALL_FLAGS)
        HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, NULL, "bad flag value for message");
    ginfo->store_link_phase_change = (flags & H5O_GINFO_STORE_PHASE_CHANGE) ? true : false;
    ginfo->store_est_entry_info    = (flags & H5O_GINFO_STORE_EST_ENTRY_INFO) ? true : false;

    /* Get the max. # of links to store compactly & the min. # of links to store densely */
    if (ginfo->store_link_phase_change) {
        if (H5_IS_BUFFER_OVERFLOW(p, 2 * 2, p_end))
            HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "ran off end of input buffer while decoding");
        UINT16DECODE(p, ginfo->max_compact);
        UINT16DECODE(p, ginfo->min_dense);
    }
    else {
        ginfo->max_compact = H5G_CRT_GINFO_MAX_COMPACT;
        ginfo->min_dense   = H5G_CRT_GINFO_MIN_DENSE;
    }

    /* Get the estimated # of entries & name lengths */
    if (ginfo->store_est_entry_info) {
        if (H5_IS_BUFFER_OVERFLOW(p, 2 * 2, p_end))
            HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "ran off end of input buffer while decoding");
        UINT16DECODE(p, ginfo->est_num_entries);
        UINT16DECODE(p, ginfo->est_name_len);
    }
    else {
        ginfo->est_num_entries = H5G_CRT_GINFO_EST_NUM_ENTRIES;
        ginfo->est_name_len    = H5G_CRT_GINFO_EST_NAME_LEN;
    }

    /* Set return value */
    ret_value = ginfo;

done:
    if (!ret_value && ginfo)
        H5FL_FREE(H5O_ginfo_t, ginfo);

    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O__ginfo_decode() */

/*-------------------------------------------------------------------------
 * Function:    H5O__ginfo_encode
 *
 * Purpose:     Encodes a message.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5O__ginfo_encode(H5F_t H5_ATTR_UNUSED *f, bool H5_ATTR_UNUSED disable_shared, size_t H5_ATTR_UNUSED p_size,
                  uint8_t *p, const void *_mesg)
{
    const H5O_ginfo_t *ginfo = (const H5O_ginfo_t *)_mesg;
    unsigned char      flags = 0; /* Flags for encoding group info */

    FUNC_ENTER_PACKAGE_NOERR

    /* check args */
    assert(p);
    assert(ginfo);

    /* Message version */
    *p++ = H5O_GINFO_VERSION;

    /* The flags for the group info */
    flags = (unsigned char)(ginfo->store_link_phase_change ? H5O_GINFO_STORE_PHASE_CHANGE : 0);
    flags = (unsigned char)(flags | (ginfo->store_est_entry_info ? H5O_GINFO_STORE_EST_ENTRY_INFO : 0));
    *p++  = flags;

    /* Store the max. # of links to store compactly & the min. # of links to store densely */
    if (ginfo->store_link_phase_change) {
        UINT16ENCODE(p, ginfo->max_compact);
        UINT16ENCODE(p, ginfo->min_dense);
    } /* end if */

    /* Estimated # of entries & name lengths */
    if (ginfo->store_est_entry_info) {
        UINT16ENCODE(p, ginfo->est_num_entries);
        UINT16ENCODE(p, ginfo->est_name_len);
    } /* end if */

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O__ginfo_encode() */

/*-------------------------------------------------------------------------
 * Function:    H5O__ginfo_copy
 *
 * Purpose:     Copies a message from _MESG to _DEST, allocating _DEST if
 *              necessary.
 *
 * Return:      Success:        Ptr to _DEST
 *
 *              Failure:        NULL
 *
 *-------------------------------------------------------------------------
 */
static void *
H5O__ginfo_copy(const void *_mesg, void *_dest)
{
    const H5O_ginfo_t *ginfo     = (const H5O_ginfo_t *)_mesg;
    H5O_ginfo_t       *dest      = (H5O_ginfo_t *)_dest;
    void              *ret_value = NULL; /* Return value */

    FUNC_ENTER_PACKAGE

    /* check args */
    assert(ginfo);
    if (!dest && NULL == (dest = H5FL_MALLOC(H5O_ginfo_t)))
        HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed");

    /* copy */
    *dest = *ginfo;

    /* Set return value */
    ret_value = dest;

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O__ginfo_copy() */

/*-------------------------------------------------------------------------
 * Function:    H5O__ginfo_size
 *
 * Purpose:     Returns the size of the raw message in bytes not counting
 *              the message type or size fields, but only the data fields.
 *              This function doesn't take into account alignment.
 *
 * Return:      Success:        Message data size in bytes without alignment.
 *
 *              Failure:        zero
 *
 *-------------------------------------------------------------------------
 */
static size_t
H5O__ginfo_size(const H5F_t H5_ATTR_UNUSED *f, bool H5_ATTR_UNUSED disable_shared, const void *_mesg)
{
    const H5O_ginfo_t *ginfo     = (const H5O_ginfo_t *)_mesg;
    size_t             ret_value = 0; /* Return value */

    FUNC_ENTER_PACKAGE_NOERR

    /* Set return value */
    ret_value = 1 +                                             /* Version */
                1 +                                             /* Flags */
                (ginfo->store_link_phase_change ? ((size_t)(2 + /* "Max compact" links */
                                                            2)  /* "Min dense" links */
                                                   )
                                                : 0) +       /* "Min dense" links */
                (ginfo->store_est_entry_info ? ((size_t)(2 + /* Estimated # of entries in group */
                                                         2)  /* Estimated length of name of entry in group */
                                                )
                                             : 0);

    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O__ginfo_size() */

/*-------------------------------------------------------------------------
 * Function:  H5O__ginfo_free
 *
 * Purpose: Frees the message
 *
 * Return:  Non-negative on success/Negative on failure
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5O__ginfo_free(void *mesg)
{
    FUNC_ENTER_PACKAGE_NOERR

    assert(mesg);

    mesg = H5FL_FREE(H5O_ginfo_t, mesg);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O__ginfo_free() */

/*-------------------------------------------------------------------------
 * Function:    H5O__ginfo_debug
 *
 * Purpose:     Prints debugging info for a message.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5O__ginfo_debug(H5F_t H5_ATTR_UNUSED *f, const void *_mesg, FILE *stream, int indent, int fwidth)
{
    const H5O_ginfo_t *ginfo = (const H5O_ginfo_t *)_mesg;

    FUNC_ENTER_PACKAGE_NOERR

    /* check args */
    assert(f);
    assert(ginfo);
    assert(stream);
    assert(indent >= 0);
    assert(fwidth >= 0);

    fprintf(stream, "%*s%-*s %u\n", indent, "", fwidth, "Max. compact links:", ginfo->max_compact);
    fprintf(stream, "%*s%-*s %u\n", indent, "", fwidth, "Min. dense links:", ginfo->min_dense);
    fprintf(stream, "%*s%-*s %u\n", indent, "", fwidth,
            "Estimated # of objects in group:", ginfo->est_num_entries);
    fprintf(stream, "%*s%-*s %u\n", indent, "", fwidth,
            "Estimated length of object in group's name:", ginfo->est_name_len);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O__ginfo_debug() */

Coverage Report

Created: 2024-06-18 06:29

Line	Count	Source (jump to first uncovered line)
1		/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
2		* Copyright by The HDF Group. *
3		* All rights reserved. *
4		* *
5		* This file is part of HDF5. The full HDF5 copyright notice, including *
6		* terms governing use, modification, and redistribution, is contained in *
7		* the COPYING file, which can be found at the root of the source code *
8		* distribution tree, or in https://www.hdfgroup.org/licenses. *
9		* If you do not have access to either file, you may request a copy from *
10		* help@hdfgroup.org. *
11		* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
12
13		/*-------------------------------------------------------------------------
14		*
15		* Created: H5Oginfo.c
16		*
17		* Purpose: Group Information messages
18		*
19		*-------------------------------------------------------------------------
20		*/
21
22		#include "H5Omodule.h" /* This source code file is part of the H5O module */
23
24		#include "H5private.h" /* Generic Functions */
25		#include "H5Eprivate.h" /* Error handling */
26		#include "H5FLprivate.h" /* Free lists */
27		#include "H5Opkg.h" /* Object headers */
28
29		/* PRIVATE PROTOTYPES */
30		static void H5O__ginfo_decode(H5F_t f, H5O_t open_oh, unsigned mesg_flags, unsigned ioflags,
31		size_t p_size, const uint8_t *p);
32		static herr_t H5O__ginfo_encode(H5F_t f, bool disable_shared, size_t H5_ATTR_UNUSED p_size, uint8_t p,
33		const void *_mesg);
34		static void H5O__ginfo_copy(const void _mesg, void *_dest);
35		static size_t H5O__ginfo_size(const H5F_t f, bool disable_shared, const void _mesg);
36		static herr_t H5O__ginfo_free(void *_mesg);
37		static herr_t H5O__ginfo_debug(H5F_t f, const void _mesg, FILE *stream, int indent, int fwidth);
38
39		/* This message derives from H5O message class */
40		const H5O_msg_class_t H5O_MSG_GINFO[1] = {{
41		H5O_GINFO_ID, /message id number /
42		"ginfo", /message name for debugging /
43		sizeof(H5O_ginfo_t), /native message size /
44		0, /* messages are shareable? */
45		H5O__ginfo_decode, /decode message /
46		H5O__ginfo_encode, /encode message /
47		H5O__ginfo_copy, /copy the native value /
48		H5O__ginfo_size, /size of symbol table entry /
49		NULL, /default reset method /
50		H5O__ginfo_free, /* free method */
51		NULL, /* file delete method */
52		NULL, /* link method */
53		NULL, /set share method /
54		NULL, /can share method /
55		NULL, /* pre copy native value to file */
56		NULL, /* copy native value to file */
57		NULL, /* post copy native value to file */
58		NULL, /* get creation index */
59		NULL, /* set creation index */
60		H5O__ginfo_debug /debug the message /
61		}};
62
63		/* Current version of group info information */
64	0	#define H5O_GINFO_VERSION 0
65
66		/* Flags for group info flag encoding */
67	0	#define H5O_GINFO_STORE_PHASE_CHANGE 0x01
68	0	#define H5O_GINFO_STORE_EST_ENTRY_INFO 0x02
69	0	#define H5O_GINFO_ALL_FLAGS (H5O_GINFO_STORE_PHASE_CHANGE \| H5O_GINFO_STORE_EST_ENTRY_INFO)
70
71		/* Declare a free list to manage the H5O_ginfo_t struct */
72		H5FL_DEFINE_STATIC(H5O_ginfo_t);
73
74		/*-------------------------------------------------------------------------
75		* Function: H5O__ginfo_decode
76		*
77		* Purpose: Decode a message and return a pointer to
78		* a newly allocated one.
79		*
80		* Return: Success: Pointer to new message in native order
81		* Failure: NULL
82		*-------------------------------------------------------------------------
83		*/
84		static void *
85		H5O__ginfo_decode(H5F_t H5_ATTR_UNUSED f, H5O_t H5_ATTR_UNUSED open_oh, unsigned H5_ATTR_UNUSED mesg_flags,
86		unsigned H5_ATTR_UNUSED ioflags, size_t p_size, const uint8_t p)
87	0	{
88	0	H5O_ginfo_t ginfo = NULL; / Pointer to group information message */
89	0	unsigned char flags; /* Flags for encoding group info */
90	0	const uint8_t p_end = p + p_size - 1; / End of the p buffer */
91	0	void *ret_value = NULL;
92
93	0	FUNC_ENTER_PACKAGE
94
95	0	assert(f);
96	0	assert(p);
97
98		/* Version of message */
99	0	if (H5_IS_BUFFER_OVERFLOW(p, 1, p_end))
100	0	HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "ran off end of input buffer while decoding");
101	0	if (*p++ != H5O_GINFO_VERSION)
102	0	HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, NULL, "bad version number for message");
103
104		/* Allocate space for message */
105	0	if (NULL == (ginfo = H5FL_CALLOC(H5O_ginfo_t)))
106	0	HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed");
107
108		/* Get the flags for the group */
109	0	if (H5_IS_BUFFER_OVERFLOW(p, 1, p_end))
110	0	HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "ran off end of input buffer while decoding");
111
112	0	flags = *p++;
113	0	if (flags & ~H5O_GINFO_ALL_FLAGS)
114	0	HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, NULL, "bad flag value for message");
115	0	ginfo->store_link_phase_change = (flags & H5O_GINFO_STORE_PHASE_CHANGE) ? true : false;
116	0	ginfo->store_est_entry_info = (flags & H5O_GINFO_STORE_EST_ENTRY_INFO) ? true : false;
117
118		/* Get the max. # of links to store compactly & the min. # of links to store densely */
119	0	if (ginfo->store_link_phase_change) {
120	0	if (H5_IS_BUFFER_OVERFLOW(p, 2 * 2, p_end))
121	0	HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "ran off end of input buffer while decoding");
122	0	UINT16DECODE(p, ginfo->max_compact);
123	0	UINT16DECODE(p, ginfo->min_dense);
124	0	}
125	0	else {
126	0	ginfo->max_compact = H5G_CRT_GINFO_MAX_COMPACT;
127	0	ginfo->min_dense = H5G_CRT_GINFO_MIN_DENSE;
128	0	}
129
130		/* Get the estimated # of entries & name lengths */
131	0	if (ginfo->store_est_entry_info) {
132	0	if (H5_IS_BUFFER_OVERFLOW(p, 2 * 2, p_end))
133	0	HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "ran off end of input buffer while decoding");
134	0	UINT16DECODE(p, ginfo->est_num_entries);
135	0	UINT16DECODE(p, ginfo->est_name_len);
136	0	}
137	0	else {
138	0	ginfo->est_num_entries = H5G_CRT_GINFO_EST_NUM_ENTRIES;
139	0	ginfo->est_name_len = H5G_CRT_GINFO_EST_NAME_LEN;
140	0	}
141
142		/* Set return value */
143	0	ret_value = ginfo;
144
145	0	done:
146	0	if (!ret_value && ginfo)
147	0	H5FL_FREE(H5O_ginfo_t, ginfo);
148
149	0	FUNC_LEAVE_NOAPI(ret_value)
150	0	} /* end H5O__ginfo_decode() */
151
152		/*-------------------------------------------------------------------------
153		* Function: H5O__ginfo_encode
154		*
155		* Purpose: Encodes a message.
156		*
157		* Return: Non-negative on success/Negative on failure
158		*
159		*-------------------------------------------------------------------------
160		*/
161		static herr_t
162		H5O__ginfo_encode(H5F_t H5_ATTR_UNUSED *f, bool H5_ATTR_UNUSED disable_shared, size_t H5_ATTR_UNUSED p_size,
163		uint8_t p, const void _mesg)
164	0	{
165	0	const H5O_ginfo_t ginfo = (const H5O_ginfo_t )_mesg;
166	0	unsigned char flags = 0; /* Flags for encoding group info */
167
168	0	FUNC_ENTER_PACKAGE_NOERR
169
170		/* check args */
171	0	assert(p);
172	0	assert(ginfo);
173
174		/* Message version */
175	0	*p++ = H5O_GINFO_VERSION;
176
177		/* The flags for the group info */
178	0	flags = (unsigned char)(ginfo->store_link_phase_change ? H5O_GINFO_STORE_PHASE_CHANGE : 0);
179	0	flags = (unsigned char)(flags \| (ginfo->store_est_entry_info ? H5O_GINFO_STORE_EST_ENTRY_INFO : 0));
180	0	*p++ = flags;
181
182		/* Store the max. # of links to store compactly & the min. # of links to store densely */
183	0	if (ginfo->store_link_phase_change) {
184	0	UINT16ENCODE(p, ginfo->max_compact);
185	0	UINT16ENCODE(p, ginfo->min_dense);
186	0	} /* end if */
187
188		/* Estimated # of entries & name lengths */
189	0	if (ginfo->store_est_entry_info) {
190	0	UINT16ENCODE(p, ginfo->est_num_entries);
191	0	UINT16ENCODE(p, ginfo->est_name_len);
192	0	} /* end if */
193
194	0	FUNC_LEAVE_NOAPI(SUCCEED)
195	0	} /* end H5O__ginfo_encode() */
196
197		/*-------------------------------------------------------------------------
198		* Function: H5O__ginfo_copy
199		*
200		* Purpose: Copies a message from _MESG to _DEST, allocating _DEST if
201		* necessary.
202		*
203		* Return: Success: Ptr to _DEST
204		*
205		* Failure: NULL
206		*
207		*-------------------------------------------------------------------------
208		*/
209		static void *
210		H5O__ginfo_copy(const void _mesg, void _dest)
211	0	{
212	0	const H5O_ginfo_t ginfo = (const H5O_ginfo_t )_mesg;
213	0	H5O_ginfo_t dest = (H5O_ginfo_t )_dest;
214	0	void ret_value = NULL; / Return value */
215
216	0	FUNC_ENTER_PACKAGE
217
218		/* check args */
219	0	assert(ginfo);
220	0	if (!dest && NULL == (dest = H5FL_MALLOC(H5O_ginfo_t)))
221	0	HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed");
222
223		/* copy */
224	0	dest = ginfo;
225
226		/* Set return value */
227	0	ret_value = dest;
228
229	0	done:
230	0	FUNC_LEAVE_NOAPI(ret_value)
231	0	} /* end H5O__ginfo_copy() */
232
233		/*-------------------------------------------------------------------------
234		* Function: H5O__ginfo_size
235		*
236		* Purpose: Returns the size of the raw message in bytes not counting
237		* the message type or size fields, but only the data fields.
238		* This function doesn't take into account alignment.
239		*
240		* Return: Success: Message data size in bytes without alignment.
241		*
242		* Failure: zero
243		*
244		*-------------------------------------------------------------------------
245		*/
246		static size_t
247		H5O__ginfo_size(const H5F_t H5_ATTR_UNUSED f, bool H5_ATTR_UNUSED disable_shared, const void _mesg)
248	0	{
249	0	const H5O_ginfo_t ginfo = (const H5O_ginfo_t )_mesg;
250	0	size_t ret_value = 0; /* Return value */
251
252	0	FUNC_ENTER_PACKAGE_NOERR
253
254		/* Set return value */
255	0	ret_value = 1 + /* Version */
256	0	1 + /* Flags */
257	0	(ginfo->store_link_phase_change ? ((size_t)(2 + /* "Max compact" links */
258	0	2) /* "Min dense" links */
259	0	)
260	0	: 0) + /* "Min dense" links */
261	0	(ginfo->store_est_entry_info ? ((size_t)(2 + /* Estimated # of entries in group */
262	0	2) /* Estimated length of name of entry in group */
263	0	)
264	0	: 0);
265
266	0	FUNC_LEAVE_NOAPI(ret_value)
267	0	} /* end H5O__ginfo_size() */
268
269		/*-------------------------------------------------------------------------
270		* Function: H5O__ginfo_free
271		*
272		* Purpose: Frees the message
273		*
274		* Return: Non-negative on success/Negative on failure
275		*
276		*-------------------------------------------------------------------------
277		*/
278		static herr_t
279		H5O__ginfo_free(void *mesg)
280	0	{
281	0	FUNC_ENTER_PACKAGE_NOERR
282
283	0	assert(mesg);
284
285	0	mesg = H5FL_FREE(H5O_ginfo_t, mesg);
286
287	0	FUNC_LEAVE_NOAPI(SUCCEED)
288	0	} /* end H5O__ginfo_free() */
289
290		/*-------------------------------------------------------------------------
291		* Function: H5O__ginfo_debug
292		*
293		* Purpose: Prints debugging info for a message.
294		*
295		* Return: Non-negative on success/Negative on failure
296		*
297		*-------------------------------------------------------------------------
298		*/
299		static herr_t
300		H5O__ginfo_debug(H5F_t H5_ATTR_UNUSED f, const void _mesg, FILE *stream, int indent, int fwidth)
301	0	{
302	0	const H5O_ginfo_t ginfo = (const H5O_ginfo_t )_mesg;
303
304	0	FUNC_ENTER_PACKAGE_NOERR
305
306		/* check args */
307	0	assert(f);
308	0	assert(ginfo);
309	0	assert(stream);
310	0	assert(indent >= 0);
311	0	assert(fwidth >= 0);
312
313	0	fprintf(stream, "%s%-s %u\n", indent, "", fwidth, "Max. compact links:", ginfo->max_compact);
314	0	fprintf(stream, "%s%-s %u\n", indent, "", fwidth, "Min. dense links:", ginfo->min_dense);
315	0	fprintf(stream, "%s%-s %u\n", indent, "", fwidth,
316	0	"Estimated # of objects in group:", ginfo->est_num_entries);
317	0	fprintf(stream, "%s%-s %u\n", indent, "", fwidth,
318	0	"Estimated length of object in group's name:", ginfo->est_name_len);
319
320	0	FUNC_LEAVE_NOAPI(SUCCEED)
321	0	} /* end H5O__ginfo_debug() */