Commit | Line | Data |
---|---|---|
d06d03db | 1 | /* |
ccd7e1c8 | 2 | * array.c |
d06d03db | 3 | * |
ccd7e1c8 | 4 | * BabelTrace - Array Type Converter |
d06d03db | 5 | * |
c054553d | 6 | * Copyright 2010, 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
d06d03db | 7 | * |
ccd7e1c8 MD |
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: | |
d06d03db | 14 | * |
ccd7e1c8 MD |
15 | * The above copyright notice and this permission notice shall be included in |
16 | * all copies or substantial portions of the Software. | |
d06d03db MD |
17 | */ |
18 | ||
19 | #include <babeltrace/compiler.h> | |
4c8bfb7e | 20 | #include <babeltrace/format.h> |
0f980a35 | 21 | #include <inttypes.h> |
d06d03db | 22 | |
c054553d | 23 | static |
f6625916 | 24 | struct definition *_array_definition_new(struct declaration *declaration, |
05c749e5 | 25 | struct definition_scope *parent_scope, |
98df1c9f | 26 | GQuark field_name, int index, const char *root_name); |
c054553d | 27 | static |
e1151715 | 28 | void _array_definition_free(struct definition *definition); |
c054553d | 29 | |
c5e74408 | 30 | int array_rw(struct stream_pos *pos, struct definition *definition) |
d06d03db | 31 | { |
d11e9c49 | 32 | struct definition_array *array_definition = |
e1151715 | 33 | container_of(definition, struct definition_array, p); |
d11e9c49 MD |
34 | const struct declaration_array *array_declaration = |
35 | array_definition->declaration; | |
c054553d | 36 | uint64_t i; |
c5e74408 | 37 | int ret; |
d06d03db | 38 | |
d11e9c49 | 39 | /* No need to align, because the first field will align itself. */ |
f6625916 | 40 | for (i = 0; i < array_declaration->len; i++) { |
b1a2f580 MD |
41 | struct definition *field = |
42 | g_ptr_array_index(array_definition->elems, i); | |
43 | ret = generic_rw(pos, field); | |
c5e74408 MD |
44 | if (ret) |
45 | return ret; | |
d06d03db | 46 | } |
c5e74408 | 47 | return 0; |
d06d03db MD |
48 | } |
49 | ||
c054553d | 50 | static |
f6625916 | 51 | void _array_declaration_free(struct declaration *declaration) |
d06d03db | 52 | { |
f6625916 MD |
53 | struct declaration_array *array_declaration = |
54 | container_of(declaration, struct declaration_array, p); | |
c054553d | 55 | |
f6625916 MD |
56 | free_declaration_scope(array_declaration->scope); |
57 | declaration_unref(array_declaration->elem); | |
58 | g_free(array_declaration); | |
d06d03db MD |
59 | } |
60 | ||
f6625916 | 61 | struct declaration_array * |
ab4cf058 | 62 | array_declaration_new(size_t len, |
f6625916 MD |
63 | struct declaration *elem_declaration, |
64 | struct declaration_scope *parent_scope) | |
d06d03db | 65 | { |
f6625916 MD |
66 | struct declaration_array *array_declaration; |
67 | struct declaration *declaration; | |
d06d03db | 68 | |
f6625916 MD |
69 | array_declaration = g_new(struct declaration_array, 1); |
70 | declaration = &array_declaration->p; | |
71 | array_declaration->len = len; | |
72 | declaration_ref(elem_declaration); | |
73 | array_declaration->elem = elem_declaration; | |
74 | array_declaration->scope = new_declaration_scope(parent_scope); | |
75 | declaration->id = CTF_TYPE_ARRAY; | |
d06d03db | 76 | /* No need to align the array, the first element will align itself */ |
f6625916 | 77 | declaration->alignment = 1; |
f6625916 MD |
78 | declaration->declaration_free = _array_declaration_free; |
79 | declaration->definition_new = _array_definition_new; | |
80 | declaration->definition_free = _array_definition_free; | |
81 | declaration->ref = 1; | |
82 | return array_declaration; | |
d06d03db | 83 | } |
c054553d MD |
84 | |
85 | static | |
e1151715 | 86 | struct definition * |
f6625916 | 87 | _array_definition_new(struct declaration *declaration, |
05c749e5 | 88 | struct definition_scope *parent_scope, |
98df1c9f | 89 | GQuark field_name, int index, const char *root_name) |
c054553d | 90 | { |
f6625916 MD |
91 | struct declaration_array *array_declaration = |
92 | container_of(declaration, struct declaration_array, p); | |
e1151715 | 93 | struct definition_array *array; |
98df1c9f MD |
94 | int ret; |
95 | int i; | |
c054553d | 96 | |
e1151715 | 97 | array = g_new(struct definition_array, 1); |
f6625916 MD |
98 | declaration_ref(&array_declaration->p); |
99 | array->p.declaration = declaration; | |
100 | array->declaration = array_declaration; | |
c054553d | 101 | array->p.ref = 1; |
98df1c9f MD |
102 | /* |
103 | * Use INT_MAX order to ensure that all fields of the parent | |
104 | * scope are seen as being prior to this scope. | |
105 | */ | |
106 | array->p.index = root_name ? INT_MAX : index; | |
b1a2f580 | 107 | array->p.name = field_name; |
98df1c9f | 108 | array->p.path = new_definition_path(parent_scope, field_name, root_name); |
a35173fe | 109 | array->p.scope = new_definition_scope(parent_scope, field_name, root_name); |
98df1c9f MD |
110 | ret = register_field_definition(field_name, &array->p, |
111 | parent_scope); | |
112 | assert(!ret); | |
81dee1bb MD |
113 | array->string = NULL; |
114 | array->elems = NULL; | |
115 | ||
116 | if (array_declaration->elem->id == CTF_TYPE_INTEGER) { | |
117 | struct declaration_integer *integer_declaration = | |
118 | container_of(array_declaration->elem, struct declaration_integer, p); | |
119 | ||
120 | if (integer_declaration->encoding == CTF_STRING_UTF8 | |
121 | || integer_declaration->encoding == CTF_STRING_ASCII) { | |
122 | ||
123 | array->string = g_string_new(""); | |
124 | ||
125 | if (integer_declaration->len == CHAR_BIT | |
126 | && integer_declaration->p.alignment == CHAR_BIT) { | |
127 | return &array->p; | |
128 | } | |
129 | } | |
130 | } | |
131 | ||
b1a2f580 MD |
132 | array->elems = g_ptr_array_sized_new(array_declaration->len); |
133 | g_ptr_array_set_size(array->elems, array_declaration->len); | |
0f980a35 | 134 | for (i = 0; i < array_declaration->len; i++) { |
b1a2f580 | 135 | struct definition **field; |
0f980a35 MD |
136 | GString *str; |
137 | GQuark name; | |
138 | ||
139 | str = g_string_new(""); | |
98df1c9f | 140 | g_string_printf(str, "[%u]", (unsigned int) i); |
0f980a35 MD |
141 | name = g_quark_from_string(str->str); |
142 | (void) g_string_free(str, TRUE); | |
143 | ||
b1a2f580 MD |
144 | field = (struct definition **) &g_ptr_array_index(array->elems, i); |
145 | *field = array_declaration->elem->definition_new(array_declaration->elem, | |
a35173fe | 146 | array->p.scope, |
98df1c9f MD |
147 | name, i, NULL); |
148 | if (!*field) | |
149 | goto error; | |
0f980a35 | 150 | } |
81dee1bb | 151 | |
c054553d | 152 | return &array->p; |
98df1c9f MD |
153 | |
154 | error: | |
155 | for (i--; i >= 0; i--) { | |
156 | struct definition *field; | |
157 | ||
158 | field = g_ptr_array_index(array->elems, i); | |
159 | field->declaration->definition_free(field); | |
160 | } | |
161 | (void) g_ptr_array_free(array->elems, TRUE); | |
a35173fe | 162 | free_definition_scope(array->p.scope); |
98df1c9f MD |
163 | declaration_unref(array->p.declaration); |
164 | g_free(array); | |
165 | return NULL; | |
c054553d MD |
166 | } |
167 | ||
168 | static | |
e1151715 | 169 | void _array_definition_free(struct definition *definition) |
c054553d | 170 | { |
e1151715 MD |
171 | struct definition_array *array = |
172 | container_of(definition, struct definition_array, p); | |
0f980a35 | 173 | uint64_t i; |
c054553d | 174 | |
81dee1bb MD |
175 | if (array->string) |
176 | (void) g_string_free(array->string, TRUE); | |
177 | if (array->elems) { | |
178 | for (i = 0; i < array->elems->len; i++) { | |
179 | struct definition *field; | |
0f980a35 | 180 | |
81dee1bb MD |
181 | field = g_ptr_array_index(array->elems, i); |
182 | field->declaration->definition_free(field); | |
183 | } | |
184 | (void) g_ptr_array_free(array->elems, TRUE); | |
0f980a35 | 185 | } |
a35173fe | 186 | free_definition_scope(array->p.scope); |
f6625916 | 187 | declaration_unref(array->p.declaration); |
c054553d MD |
188 | g_free(array); |
189 | } | |
0f980a35 | 190 | |
3838df27 MD |
191 | uint64_t array_len(struct definition_array *array) |
192 | { | |
81dee1bb MD |
193 | if (!array->elems) |
194 | return array->string->len; | |
3838df27 MD |
195 | return array->elems->len; |
196 | } | |
197 | ||
0f980a35 MD |
198 | struct definition *array_index(struct definition_array *array, uint64_t i) |
199 | { | |
81dee1bb MD |
200 | if (!array->elems) |
201 | return NULL; | |
0f980a35 MD |
202 | if (i >= array->elems->len) |
203 | return NULL; | |
b1a2f580 | 204 | return g_ptr_array_index(array->elems, i); |
0f980a35 | 205 | } |