lib: create_packet_message(): use pool to determine beginning or end msg
[babeltrace.git] / lib / ctf-writer / utils.c
CommitLineData
16ca5ff0
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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
40static
41const 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
47static GHashTable *reserved_keywords_set;
48static int init_done;
49
50static
51void 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
74static __attribute__((destructor))
75void trace_finalize(void)
76{
77 if (reserved_keywords_set) {
78 g_hash_table_destroy(reserved_keywords_set);
79 }
80}
81
82bt_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 }
119end:
120 free(string);
121 return is_valid;
122}
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