a1bfbf431055539b610791c221144c4dec6da4e4
4 * BabelTrace - Structure Type Converter
6 * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
19 #include <babeltrace/compiler.h>
20 #include <babeltrace/format.h>
22 void struct_copy(struct stream_pos
*dest
, const struct format
*fdest
,
23 struct stream_pos
*src
, const struct format
*fsrc
,
24 const struct type_class
*type_class
)
26 struct type_class_struct
*struct_class
=
27 container_of(type_class
, struct type_class_struct
, p
);
30 fsrc
->struct_begin(src
, struct_class
);
31 fdest
->struct_begin(dest
, struct_class
);
33 for (i
= 0; i
< struct_class
->fields
->len
; i
++) {
34 struct field
*field
= &g_array_index(struct_class
->fields
,
36 struct type_class
*field_class
= field
->type_class
;
38 field_class
->copy(dest
, fdest
, src
, fsrc
, field_class
);
41 fsrc
->struct_end(src
, struct_class
);
42 fdest
->struct_end(dest
, struct_class
);
45 void struct_type_free(struct type_class_struct
*struct_class
)
49 g_hash_table_destroy(struct_class
->fields_by_name
);
51 for (i
= 0; i
< struct_class
->fields
->len
; i
++) {
52 struct field
*field
= &g_array_index(struct_class
->fields
,
54 type_unref(field
->type_class
);
56 g_array_free(struct_class
->fields
, true);
60 static void _struct_type_free(struct type_class
*type_class
)
62 struct type_class_struct
*struct_class
=
63 container_of(type_class
, struct type_class_struct
, p
);
64 struct_type_free(struct_class
);
67 struct type_class_struct
*struct_type_new(const char *name
)
69 struct type_class_struct
*struct_class
;
70 struct type_class
*type_class
;
73 struct_class
= g_new(struct type_class_struct
, 1);
74 type_class
= &struct_class
->p
;
76 struct_class
->fields_by_name
= g_hash_table_new(g_direct_hash
,
78 struct_class
->fields
= g_array_sized_new(false, false,
80 DEFAULT_NR_STRUCT_FIELDS
);
81 type_class
->name
= g_quark_from_string(name
);
82 type_class
->alignment
= 1;
83 type_class
->copy
= struct_copy
;
84 type_class
->free
= _struct_type_free
;
87 if (type_class
->name
) {
88 ret
= ctf_register_type(type_class
);
99 void struct_type_add_field(struct type_class_struct
*struct_class
,
100 const char *field_name
,
101 struct type_class
*type_class
)
106 g_array_set_size(struct_class
->fields
, struct_class
->fields
->len
+ 1);
107 index
= struct_class
->fields
->len
- 1; /* last field (new) */
108 field
= &g_array_index(struct_class
->fields
, struct field
, index
);
109 field
->name
= g_quark_from_string(field_name
);
110 type_ref(type_class
);
111 field
->type_class
= type_class
;
112 /* Keep index in hash rather than pointer, because array can relocate */
113 g_hash_table_insert(struct_class
->fields_by_name
,
114 (gpointer
) (unsigned long) field
->name
,
117 * Alignment of structure is the max alignment of types contained
120 struct_class
->p
.alignment
= max(struct_class
->p
.alignment
,
121 type_class
->alignment
);
125 struct_type_lookup_field_index(struct type_class_struct
*struct_class
,
130 index
= (unsigned long) g_hash_table_lookup(struct_class
->fields_by_name
,
131 (gconstpointer
) (unsigned long) field_name
);
136 * field returned only valid as long as the field structure is not appended to.
139 struct_type_get_field_from_index(struct type_class_struct
*struct_class
,
142 return &g_array_index(struct_class
->fields
, struct field
, index
);
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