summaryrefslogtreecommitdiffstats
path: root/src/H5Ocont.c
blob: 0ade46f239dc14ecc50edd507e0c77c3384d03dd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
/*-------------------------------------------------------------------------
 * Copyright (C) 1997   National Center for Supercomputing Applications.
 *                      All rights reserved.
 *
 *-------------------------------------------------------------------------
 *
 * Created:             H5Ocont.c
 *                      Aug  6 1997
 *                      Robb Matzke <matzke@llnl.gov>
 *
 * Purpose:             The object header continuation message.  This
 *                      message is only generated and read from within
 *                      the H5O package.  Therefore, do not change
 *                      any definitions in this file!
 *
 * Modifications:       
 *
 *-------------------------------------------------------------------------
 */
#include <H5private.h>
#include <H5Eprivate.h>
#include <H5MMprivate.h>
#include <H5Oprivate.h>

#define PABLO_MASK      H5O_cont_mask

/* PRIVATE PROTOTYPES */
static void *H5O_cont_decode(H5F_t *f, const uint8_t *p, H5O_shared_t *sh);
static herr_t H5O_cont_encode(H5F_t *f, uint8_t *p, const void *_mesg);
static herr_t H5O_cont_debug(H5F_t *f, const void *_mesg, FILE * stream,
			     intn indent, intn fwidth);

/* This message derives from H5O */
const H5O_class_t H5O_CONT[1] = {{
    H5O_CONT_ID,            	/*message id number             */
    "hdr continuation",     	/*message name for debugging    */
    sizeof(H5O_cont_t),     	/*native message size           */
    H5O_cont_decode,        	/*decode message                */
    H5O_cont_encode,        	/*encode message                */
    NULL,                   	/*no copy method                */
    NULL,                   	/*no size method                */
    NULL,                   	/*default reset method          */
    NULL,		            /* default free method			*/
    NULL, 		    	/*get share method		*/
    NULL,		    	/*set share method		*/
    H5O_cont_debug,         	/*debugging                     */
}};

/* Interface initialization */
static intn             interface_initialize_g = 0;
#define INTERFACE_INIT  NULL

/*-------------------------------------------------------------------------
 * Function:    H5O_cont_decode
 *
 * Purpose:     Decode the raw header continuation message.
 *
 * Return:      Success:        Ptr to the new native message
 *
 *              Failure:        NULL
 *
 * Programmer:  Robb Matzke
 *              matzke@llnl.gov
 *              Aug  6 1997
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void *
H5O_cont_decode(H5F_t *f, const uint8_t *p, H5O_shared_t UNUSED *sh)
{
    H5O_cont_t             *cont = NULL;

    FUNC_ENTER(H5O_cont_decode, NULL);

    /* check args */
    assert(f);
    assert(p);
    assert (!sh);

    /* decode */
    if (NULL==(cont = H5MM_calloc(sizeof(H5O_cont_t)))) {
	HRETURN_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL,
		       "memory allocation failed");
    }
    H5F_addr_decode(f, &p, &(cont->addr));
    H5F_decode_length(f, p, cont->size);

    FUNC_LEAVE((void *) cont);
}

/*-------------------------------------------------------------------------
 * Function:    H5O_cont_encode
 *
 * Purpose:     Encodes a continuation message.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Robb Matzke
 *              matzke@llnl.gov
 *              Aug  7 1997
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5O_cont_encode(H5F_t *f, uint8_t *p, const void *_mesg)
{
    const H5O_cont_t       *cont = (const H5O_cont_t *) _mesg;

    FUNC_ENTER(H5O_cont_encode, FAIL);

    /* check args */
    assert(f);
    assert(p);
    assert(cont);

    /* encode */
    H5F_addr_encode(f, &p, &(cont->addr));
    H5F_encode_length(f, p, cont->size);

    FUNC_LEAVE(SUCCEED);
}

/*-------------------------------------------------------------------------
 * Function:    H5O_cont_debug
 *
 * Purpose:     Prints debugging info.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Robb Matzke
 *              matzke@llnl.gov
 *              Aug  6 1997
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5O_cont_debug(H5F_t UNUSED *f, const void *_mesg, FILE * stream,
	       intn indent, intn fwidth)
{
    const H5O_cont_t       *cont = (const H5O_cont_t *) _mesg;

    FUNC_ENTER(H5O_cont_debug, FAIL);

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

    fprintf(stream, "%*s%-*s ", indent, "", fwidth,
            "Continuation address:");
    H5F_addr_print(stream, &(cont->addr));
    fprintf(stream, "\n");

    fprintf(stream, "%*s%-*s %lu\n", indent, "", fwidth,
            "Continuation size in bytes:",
            (unsigned long) (cont->size));
    fprintf(stream, "%*s%-*s %d\n", indent, "", fwidth,
            "Points to chunk number:",
            (int) (cont->chunkno));

    FUNC_LEAVE(SUCCEED);
}