Commit | Line | Data |
---|---|---|
d06d03db | 1 | /* |
ccd7e1c8 | 2 | * array.c |
d06d03db | 3 | * |
ccd7e1c8 | 4 | * BabelTrace - Array Type Converter |
d06d03db | 5 | * |
64fa3fec MD |
6 | * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation |
7 | * | |
8 | * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
d06d03db | 9 | * |
ccd7e1c8 MD |
10 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
11 | * of this software and associated documentation files (the "Software"), to deal | |
12 | * in the Software without restriction, including without limitation the rights | |
13 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
14 | * copies of the Software, and to permit persons to whom the Software is | |
15 | * furnished to do so, subject to the following conditions: | |
d06d03db | 16 | * |
ccd7e1c8 MD |
17 | * The above copyright notice and this permission notice shall be included in |
18 | * all copies or substantial portions of the Software. | |
d06d03db MD |
19 | */ |
20 | ||
21 | #include <babeltrace/compiler.h> | |
4c8bfb7e | 22 | #include <babeltrace/format.h> |
3122e6f0 | 23 | #include <babeltrace/types.h> |
0f980a35 | 24 | #include <inttypes.h> |
d06d03db | 25 | |
c054553d | 26 | static |
f6625916 | 27 | struct definition *_array_definition_new(struct declaration *declaration, |
05c749e5 | 28 | struct definition_scope *parent_scope, |
98df1c9f | 29 | GQuark field_name, int index, const char *root_name); |
c054553d | 30 | static |
e1151715 | 31 | void _array_definition_free(struct definition *definition); |
c054553d | 32 | |
c5e74408 | 33 | int array_rw(struct stream_pos *pos, struct definition *definition) |
d06d03db | 34 | { |
d11e9c49 | 35 | struct definition_array *array_definition = |
e1151715 | 36 | container_of(definition, struct definition_array, p); |
d11e9c49 MD |
37 | const struct declaration_array *array_declaration = |
38 | array_definition->declaration; | |
c054553d | 39 | uint64_t i; |
c5e74408 | 40 | int ret; |
d06d03db | 41 | |
d11e9c49 | 42 | /* No need to align, because the first field will align itself. */ |
f6625916 | 43 | for (i = 0; i < array_declaration->len; i++) { |
b1a2f580 MD |
44 | struct definition *field = |
45 | g_ptr_array_index(array_definition->elems, i); | |
46 | ret = generic_rw(pos, field); | |
c5e74408 MD |
47 | if (ret) |
48 | return ret; | |
d06d03db | 49 | } |
c5e74408 | 50 | return 0; |
d06d03db MD |
51 | } |
52 | ||
c054553d | 53 | static |
f6625916 | 54 | void _array_declaration_free(struct declaration *declaration) |
d06d03db | 55 | { |
f6625916 MD |
56 | struct declaration_array *array_declaration = |
57 | container_of(declaration, struct declaration_array, p); | |
c054553d | 58 | |
f6625916 MD |
59 | free_declaration_scope(array_declaration->scope); |
60 | declaration_unref(array_declaration->elem); | |
61 | g_free(array_declaration); | |
d06d03db MD |
62 | } |
63 | ||
f6625916 | 64 | struct declaration_array * |
ab4cf058 | 65 | array_declaration_new(size_t len, |
f6625916 MD |
66 | struct declaration *elem_declaration, |
67 | struct declaration_scope *parent_scope) | |
d06d03db | 68 | { |
f6625916 MD |
69 | struct declaration_array *array_declaration; |
70 | struct declaration *declaration; | |
d06d03db | 71 | |
f6625916 MD |
72 | array_declaration = g_new(struct declaration_array, 1); |
73 | declaration = &array_declaration->p; | |
74 | array_declaration->len = len; | |
75 | declaration_ref(elem_declaration); | |
76 | array_declaration->elem = elem_declaration; | |
77 | array_declaration->scope = new_declaration_scope(parent_scope); | |
78 | declaration->id = CTF_TYPE_ARRAY; | |
d06d03db | 79 | /* No need to align the array, the first element will align itself */ |
f6625916 | 80 | declaration->alignment = 1; |
f6625916 MD |
81 | declaration->declaration_free = _array_declaration_free; |
82 | declaration->definition_new = _array_definition_new; | |
83 | declaration->definition_free = _array_definition_free; | |
84 | declaration->ref = 1; | |
85 | return array_declaration; | |
d06d03db | 86 | } |
c054553d MD |
87 | |
88 | static | |
e1151715 | 89 | struct definition * |
f6625916 | 90 | _array_definition_new(struct declaration *declaration, |
05c749e5 | 91 | struct definition_scope *parent_scope, |
98df1c9f | 92 | GQuark field_name, int index, const char *root_name) |
c054553d | 93 | { |
f6625916 MD |
94 | struct declaration_array *array_declaration = |
95 | container_of(declaration, struct declaration_array, p); | |
e1151715 | 96 | struct definition_array *array; |
98df1c9f MD |
97 | int ret; |
98 | int i; | |
c054553d | 99 | |
e1151715 | 100 | array = g_new(struct definition_array, 1); |
f6625916 MD |
101 | declaration_ref(&array_declaration->p); |
102 | array->p.declaration = declaration; | |
103 | array->declaration = array_declaration; | |
c054553d | 104 | array->p.ref = 1; |
98df1c9f MD |
105 | /* |
106 | * Use INT_MAX order to ensure that all fields of the parent | |
107 | * scope are seen as being prior to this scope. | |
108 | */ | |
109 | array->p.index = root_name ? INT_MAX : index; | |
b1a2f580 | 110 | array->p.name = field_name; |
98df1c9f | 111 | array->p.path = new_definition_path(parent_scope, field_name, root_name); |
a35173fe | 112 | array->p.scope = new_definition_scope(parent_scope, field_name, root_name); |
98df1c9f MD |
113 | ret = register_field_definition(field_name, &array->p, |
114 | parent_scope); | |
115 | assert(!ret); | |
81dee1bb MD |
116 | array->string = NULL; |
117 | array->elems = NULL; | |
118 | ||
119 | if (array_declaration->elem->id == CTF_TYPE_INTEGER) { | |
120 | struct declaration_integer *integer_declaration = | |
121 | container_of(array_declaration->elem, struct declaration_integer, p); | |
122 | ||
123 | if (integer_declaration->encoding == CTF_STRING_UTF8 | |
124 | || integer_declaration->encoding == CTF_STRING_ASCII) { | |
125 | ||
126 | array->string = g_string_new(""); | |
127 | ||
128 | if (integer_declaration->len == CHAR_BIT | |
129 | && integer_declaration->p.alignment == CHAR_BIT) { | |
130 | return &array->p; | |
131 | } | |
132 | } | |
133 | } | |
134 | ||
b1a2f580 MD |
135 | array->elems = g_ptr_array_sized_new(array_declaration->len); |
136 | g_ptr_array_set_size(array->elems, array_declaration->len); | |
0f980a35 | 137 | for (i = 0; i < array_declaration->len; i++) { |
b1a2f580 | 138 | struct definition **field; |
0f980a35 MD |
139 | GString *str; |
140 | GQuark name; | |
141 | ||
142 | str = g_string_new(""); | |
98df1c9f | 143 | g_string_printf(str, "[%u]", (unsigned int) i); |
0f980a35 MD |
144 | name = g_quark_from_string(str->str); |
145 | (void) g_string_free(str, TRUE); | |
146 | ||
b1a2f580 MD |
147 | field = (struct definition **) &g_ptr_array_index(array->elems, i); |
148 | *field = array_declaration->elem->definition_new(array_declaration->elem, | |
a35173fe | 149 | array->p.scope, |
98df1c9f MD |
150 | name, i, NULL); |
151 | if (!*field) | |
152 | goto error; | |
0f980a35 | 153 | } |
81dee1bb | 154 | |
c054553d | 155 | return &array->p; |
98df1c9f MD |
156 | |
157 | error: | |
158 | for (i--; i >= 0; i--) { | |
159 | struct definition *field; | |
160 | ||
161 | field = g_ptr_array_index(array->elems, i); | |
162 | field->declaration->definition_free(field); | |
163 | } | |
164 | (void) g_ptr_array_free(array->elems, TRUE); | |
a35173fe | 165 | free_definition_scope(array->p.scope); |
98df1c9f MD |
166 | declaration_unref(array->p.declaration); |
167 | g_free(array); | |
168 | return NULL; | |
c054553d MD |
169 | } |
170 | ||
171 | static | |
e1151715 | 172 | void _array_definition_free(struct definition *definition) |
c054553d | 173 | { |
e1151715 MD |
174 | struct definition_array *array = |
175 | container_of(definition, struct definition_array, p); | |
0f980a35 | 176 | uint64_t i; |
c054553d | 177 | |
81dee1bb MD |
178 | if (array->string) |
179 | (void) g_string_free(array->string, TRUE); | |
180 | if (array->elems) { | |
181 | for (i = 0; i < array->elems->len; i++) { | |
182 | struct definition *field; | |
0f980a35 | 183 | |
81dee1bb MD |
184 | field = g_ptr_array_index(array->elems, i); |
185 | field->declaration->definition_free(field); | |
186 | } | |
187 | (void) g_ptr_array_free(array->elems, TRUE); | |
0f980a35 | 188 | } |
a35173fe | 189 | free_definition_scope(array->p.scope); |
f6625916 | 190 | declaration_unref(array->p.declaration); |
c054553d MD |
191 | g_free(array); |
192 | } | |
0f980a35 | 193 | |
3838df27 MD |
194 | uint64_t array_len(struct definition_array *array) |
195 | { | |
81dee1bb MD |
196 | if (!array->elems) |
197 | return array->string->len; | |
3838df27 MD |
198 | return array->elems->len; |
199 | } | |
200 | ||
0f980a35 MD |
201 | struct definition *array_index(struct definition_array *array, uint64_t i) |
202 | { | |
81dee1bb MD |
203 | if (!array->elems) |
204 | return NULL; | |
0f980a35 MD |
205 | if (i >= array->elems->len) |
206 | return NULL; | |
b1a2f580 | 207 | return g_ptr_array_index(array->elems, i); |
0f980a35 | 208 | } |
343c801f JD |
209 | |
210 | GString *get_char_array(struct definition *field) | |
211 | { | |
212 | struct definition_array *array_definition; | |
213 | struct declaration_array *array_declaration; | |
214 | struct declaration *elem; | |
215 | ||
216 | array_definition = container_of(field, struct definition_array, p); | |
217 | array_declaration = array_definition->declaration; | |
218 | elem = array_declaration->elem; | |
219 | if (elem->id == CTF_TYPE_INTEGER) { | |
220 | struct declaration_integer *integer_declaration = | |
221 | container_of(elem, struct declaration_integer, p); | |
222 | ||
223 | if (integer_declaration->encoding == CTF_STRING_UTF8 | |
224 | || integer_declaration->encoding == CTF_STRING_ASCII) { | |
225 | ||
226 | if (integer_declaration->len == CHAR_BIT | |
227 | && integer_declaration->p.alignment == CHAR_BIT) { | |
228 | ||
229 | return array_definition->string; | |
230 | } | |
231 | } | |
232 | } | |
233 | fprintf(stderr, "[warning] Extracting string\n"); | |
234 | return NULL; | |
235 | } |