4 * BabelTrace - Structure Type Converter
6 * Copyright 2010, 2011 - 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>
23 #define max(a, b) ((a) < (b) ? (b) : (a))
27 struct definition
*_struct_definition_new(struct declaration
*declaration
,
28 struct definition_scope
*parent_scope
,
29 GQuark field_name
, int index
);
31 void _struct_definition_free(struct definition
*definition
);
33 void struct_rw(struct stream_pos
*ppos
, struct definition
*definition
)
35 struct definition_struct
*struct_definition
=
36 container_of(definition
, struct definition_struct
, p
);
39 for (i
= 0; i
< struct_definition
->fields
->len
; i
++) {
40 struct field
*field
= &g_array_index(struct_definition
->fields
,
42 generic_rw(ppos
, field
->definition
);
47 void _struct_declaration_free(struct declaration
*declaration
)
49 struct declaration_struct
*struct_declaration
=
50 container_of(declaration
, struct declaration_struct
, p
);
53 free_declaration_scope(struct_declaration
->scope
);
54 g_hash_table_destroy(struct_declaration
->fields_by_name
);
56 for (i
= 0; i
< struct_declaration
->fields
->len
; i
++) {
57 struct declaration_field
*declaration_field
=
58 &g_array_index(struct_declaration
->fields
,
59 struct declaration_field
, i
);
60 declaration_unref(declaration_field
->declaration
);
62 g_array_free(struct_declaration
->fields
, true);
63 g_free(struct_declaration
);
66 struct declaration_struct
*
67 struct_declaration_new(struct declaration_scope
*parent_scope
)
69 struct declaration_struct
*struct_declaration
;
70 struct declaration
*declaration
;
72 struct_declaration
= g_new(struct declaration_struct
, 1);
73 declaration
= &struct_declaration
->p
;
74 struct_declaration
->fields_by_name
= g_hash_table_new(g_direct_hash
,
76 struct_declaration
->fields
= g_array_sized_new(FALSE
, TRUE
,
77 sizeof(struct declaration_field
),
78 DEFAULT_NR_STRUCT_FIELDS
);
79 struct_declaration
->scope
= new_declaration_scope(parent_scope
);
80 declaration
->id
= CTF_TYPE_STRUCT
;
81 declaration
->alignment
= 1;
82 declaration
->declaration_free
= _struct_declaration_free
;
83 declaration
->definition_new
= _struct_definition_new
;
84 declaration
->definition_free
= _struct_definition_free
;
86 return struct_declaration
;
91 _struct_definition_new(struct declaration
*declaration
,
92 struct definition_scope
*parent_scope
,
93 GQuark field_name
, int index
)
95 struct declaration_struct
*struct_declaration
=
96 container_of(declaration
, struct declaration_struct
, p
);
97 struct definition_struct
*_struct
;
101 _struct
= g_new(struct definition_struct
, 1);
102 declaration_ref(&struct_declaration
->p
);
103 _struct
->p
.declaration
= declaration
;
104 _struct
->declaration
= struct_declaration
;
106 _struct
->p
.index
= index
;
107 _struct
->scope
= new_definition_scope(parent_scope
, field_name
);
108 _struct
->fields
= g_array_sized_new(FALSE
, TRUE
,
109 sizeof(struct field
),
110 DEFAULT_NR_STRUCT_FIELDS
);
111 g_array_set_size(_struct
->fields
, struct_declaration
->fields
->len
);
112 for (i
= 0; i
< struct_declaration
->fields
->len
; i
++) {
113 struct declaration_field
*declaration_field
=
114 &g_array_index(struct_declaration
->fields
,
115 struct declaration_field
, i
);
116 struct field
*field
= &g_array_index(_struct
->fields
,
119 field
->name
= declaration_field
->name
;
121 declaration_field
->declaration
->definition_new(declaration_field
->declaration
,
124 ret
= register_field_definition(field
->name
,
133 void _struct_definition_free(struct definition
*definition
)
135 struct definition_struct
*_struct
=
136 container_of(definition
, struct definition_struct
, p
);
139 assert(_struct
->fields
->len
== _struct
->declaration
->fields
->len
);
140 for (i
= 0; i
< _struct
->fields
->len
; i
++) {
141 struct field
*field
= &g_array_index(_struct
->fields
,
143 definition_unref(field
->definition
);
145 free_definition_scope(_struct
->scope
);
146 declaration_unref(_struct
->p
.declaration
);
150 void struct_declaration_add_field(struct declaration_struct
*struct_declaration
,
151 const char *field_name
,
152 struct declaration
*field_declaration
)
154 struct declaration_field
*field
;
157 g_array_set_size(struct_declaration
->fields
, struct_declaration
->fields
->len
+ 1);
158 index
= struct_declaration
->fields
->len
- 1; /* last field (new) */
159 field
= &g_array_index(struct_declaration
->fields
, struct declaration_field
, index
);
160 field
->name
= g_quark_from_string(field_name
);
161 declaration_ref(field_declaration
);
162 field
->declaration
= field_declaration
;
163 /* Keep index in hash rather than pointer, because array can relocate */
164 g_hash_table_insert(struct_declaration
->fields_by_name
,
165 (gpointer
) (unsigned long) field
->name
,
168 * Alignment of structure is the max alignment of declarations contained
171 struct_declaration
->p
.alignment
= max(struct_declaration
->p
.alignment
,
172 field_declaration
->alignment
);
176 * struct_declaration_lookup_field_index - returns field index
178 * Returns the index of a field in a structure, or -1 if it does not
181 int struct_declaration_lookup_field_index(struct declaration_struct
*struct_declaration
,
187 found
= g_hash_table_lookup_extended(struct_declaration
->fields_by_name
,
188 (gconstpointer
) (unsigned long) field_name
,
192 return (int) (unsigned long) index
;
196 * field returned only valid as long as the field structure is not appended to.
198 struct declaration_field
*
199 struct_declaration_get_field_from_index(struct declaration_struct
*struct_declaration
,
204 return &g_array_index(struct_declaration
->fields
, struct declaration_field
, index
);
208 * field returned only valid as long as the field structure is not appended to.
211 struct_definition_get_field_from_index(struct definition_struct
*_struct
,
216 return &g_array_index(_struct
->fields
, struct field
, index
);
This page took 0.033546 seconds and 4 git commands to generate.