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16ca5ff0 PP |
1 | /* |
2 | * utils.c | |
3 | * | |
4 | * Babeltrace CTF writer - 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 | #define BT_LOG_TAG "CTF-WRITER-UTILS" | |
30 | #include <babeltrace/lib-logging-internal.h> | |
31 | ||
32 | #include <babeltrace/assert-internal.h> | |
33 | #include <babeltrace/ctf-writer/clock-class-internal.h> | |
34 | #include <babeltrace/ctf-writer/field-types-internal.h> | |
35 | #include <babeltrace/ctf-writer/utils.h> | |
e1e02a22 | 36 | #include <babeltrace/ctf-writer/object.h> |
16ca5ff0 PP |
37 | #include <glib.h> |
38 | #include <stdlib.h> | |
39 | ||
40 | static | |
41 | const char * const reserved_keywords_str[] = {"align", "callsite", | |
42 | "const", "char", "clock", "double", "enum", "env", "event", | |
43 | "floating_point", "float", "integer", "int", "long", "short", "signed", | |
44 | "stream", "string", "struct", "trace", "typealias", "typedef", | |
45 | "unsigned", "variant", "void" "_Bool", "_Complex", "_Imaginary"}; | |
46 | ||
47 | static GHashTable *reserved_keywords_set; | |
48 | static int init_done; | |
49 | ||
50 | static | |
51 | void try_init_reserved_keywords(void) | |
52 | { | |
53 | size_t i; | |
54 | const size_t reserved_keywords_count = | |
55 | sizeof(reserved_keywords_str) / sizeof(char *); | |
56 | ||
57 | if (reserved_keywords_set) { | |
58 | return; | |
59 | } | |
60 | ||
61 | reserved_keywords_set = g_hash_table_new(g_direct_hash, g_direct_equal); | |
62 | BT_ASSERT(reserved_keywords_set); | |
63 | ||
64 | for (i = 0; i < reserved_keywords_count; i++) { | |
65 | gpointer quark = GINT_TO_POINTER(g_quark_from_string( | |
66 | reserved_keywords_str[i])); | |
67 | ||
68 | g_hash_table_insert(reserved_keywords_set, quark, quark); | |
69 | } | |
70 | ||
71 | init_done = 1; | |
72 | } | |
73 | ||
74 | static __attribute__((destructor)) | |
75 | void trace_finalize(void) | |
76 | { | |
77 | if (reserved_keywords_set) { | |
78 | g_hash_table_destroy(reserved_keywords_set); | |
79 | } | |
80 | } | |
81 | ||
82 | bt_bool bt_ctf_identifier_is_valid(const char *identifier) | |
83 | { | |
84 | bt_bool is_valid = BT_TRUE; | |
85 | char *string = NULL; | |
86 | char *save_ptr, *token; | |
87 | ||
88 | if (!identifier) { | |
89 | BT_LOGV_STR("Invalid parameter: input string is NULL."); | |
90 | is_valid = BT_FALSE; | |
91 | goto end; | |
92 | } | |
93 | ||
94 | try_init_reserved_keywords(); | |
95 | ||
96 | if (identifier[0] == '\0') { | |
97 | is_valid = BT_FALSE; | |
98 | goto end; | |
99 | } | |
100 | ||
101 | string = strdup(identifier); | |
102 | if (!string) { | |
103 | BT_LOGE("strdup() failed."); | |
104 | is_valid = BT_FALSE; | |
105 | goto end; | |
106 | } | |
107 | ||
108 | token = strtok_r(string, " ", &save_ptr); | |
109 | while (token) { | |
110 | if (g_hash_table_lookup_extended(reserved_keywords_set, | |
111 | GINT_TO_POINTER(g_quark_from_string(token)), | |
112 | NULL, NULL)) { | |
113 | is_valid = BT_FALSE; | |
114 | goto end; | |
115 | } | |
116 | ||
117 | token = strtok_r(NULL, " ", &save_ptr); | |
118 | } | |
119 | end: | |
120 | free(string); | |
121 | return is_valid; | |
122 | } |