Modify bt_ctf_field_enumeration_get_single_mapping to return iterator
[babeltrace.git] / formats / ctf / ir / utils.c
1 /*
2 * utils.c
3 *
4 * Babeltrace CTF IR - Utilities
5 *
6 * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
7 *
8 * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
9 *
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:
16 *
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
26 * SOFTWARE.
27 */
28
29 #include <string.h>
30 #include <stdlib.h>
31 #include <glib.h>
32
33 static
34 const char * const reserved_keywords_str[] = {"align", "callsite",
35 "const", "char", "clock", "double", "enum", "env", "event",
36 "floating_point", "float", "integer", "int", "long", "short", "signed",
37 "stream", "string", "struct", "trace", "typealias", "typedef",
38 "unsigned", "variant", "void" "_Bool", "_Complex", "_Imaginary"};
39
40 static GHashTable *reserved_keywords_set;
41 static int init_done;
42 static int global_data_refcount;
43
44 static __attribute__((constructor))
45 void trace_init(void)
46 {
47 size_t i;
48 const size_t reserved_keywords_count =
49 sizeof(reserved_keywords_str) / sizeof(char *);
50
51 global_data_refcount++;
52 if (init_done) {
53 return;
54 }
55
56 reserved_keywords_set = g_hash_table_new(g_direct_hash, g_direct_equal);
57 for (i = 0; i < reserved_keywords_count; i++) {
58 gpointer quark = GINT_TO_POINTER(g_quark_from_string(
59 reserved_keywords_str[i]));
60
61 g_hash_table_insert(reserved_keywords_set, quark, quark);
62 }
63
64 init_done = 1;
65 }
66
67 static __attribute__((destructor))
68 void trace_finalize(void)
69 {
70 if (--global_data_refcount == 0) {
71 g_hash_table_destroy(reserved_keywords_set);
72 }
73 }
74
75 int bt_ctf_validate_identifier(const char *input_string)
76 {
77 int ret = 0;
78 char *string = NULL;
79 char *save_ptr, *token;
80
81 if (!input_string || input_string[0] == '\0') {
82 ret = -1;
83 goto end;
84 }
85
86 string = strdup(input_string);
87 if (!string) {
88 ret = -1;
89 goto end;
90 }
91
92 token = strtok_r(string, " ", &save_ptr);
93 while (token) {
94 if (g_hash_table_lookup_extended(reserved_keywords_set,
95 GINT_TO_POINTER(g_quark_from_string(token)),
96 NULL, NULL)) {
97 ret = -1;
98 goto end;
99 }
100
101 token = strtok_r(NULL, " ", &save_ptr);
102 }
103 end:
104 free(string);
105 return ret;
106 }
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