[babeltrace.git] / lib / ctf-ir / utils.c

/*
 * utils.c
 *
 * Babeltrace CTF IR - Utilities
 *
 * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
 *
 * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#define BT_LOG_TAG "CTF-IR-UTILS"
#include <babeltrace/lib-logging-internal.h>

#include <assert.h>
#include <stdlib.h>
#include <glib.h>
#include <babeltrace/ctf-ir/utils.h>

static
const char * const reserved_keywords_str[] = {"align", "callsite",
	"const", "char", "clock", "double", "enum", "env", "event",
	"floating_point", "float", "integer", "int", "long", "short", "signed",
	"stream", "string", "struct", "trace", "typealias", "typedef",
	"unsigned", "variant", "void" "_Bool", "_Complex", "_Imaginary"};

static GHashTable *reserved_keywords_set;
static int init_done;

static
void try_init_reserved_keywords(void)
{
	size_t i;
	const size_t reserved_keywords_count =
		sizeof(reserved_keywords_str) / sizeof(char *);

	if (reserved_keywords_set) {
		return;
	}

	reserved_keywords_set = g_hash_table_new(g_direct_hash, g_direct_equal);
	assert(reserved_keywords_set);

	for (i = 0; i < reserved_keywords_count; i++) {
		gpointer quark = GINT_TO_POINTER(g_quark_from_string(
			reserved_keywords_str[i]));

		g_hash_table_insert(reserved_keywords_set, quark, quark);
	}

	init_done = 1;
}

static __attribute__((destructor))
void trace_finalize(void)
{
	if (reserved_keywords_set) {
		g_hash_table_destroy(reserved_keywords_set);
	}
}

int bt_validate_identifier(const char *input_string)
{
	int ret = 0;
	char *string = NULL;
	char *save_ptr, *token;

	if (!input_string) {
		BT_LOGV_STR("Invalid parameter: input string is NULL.");
		ret = -1;
		goto end;
	}

	try_init_reserved_keywords();

	if (input_string[0] == '\0') {
		ret = -1;
		goto end;
	}

	string = strdup(input_string);
	if (!string) {
		BT_LOGE("strdup() failed.");
		ret = -1;
		goto end;
	}

	token = strtok_r(string, " ", &save_ptr);
	while (token) {
		if (g_hash_table_lookup_extended(reserved_keywords_set,
			GINT_TO_POINTER(g_quark_from_string(token)),
			NULL, NULL)) {
			ret = -1;
			goto end;
		}

		token = strtok_r(NULL, " ", &save_ptr);
	}
end:
	free(string);
	return ret;
}

bt_bool bt_identifier_is_valid(const char *identifier)
{
	return bt_validate_identifier(identifier);
}
Commit	Line	Data
654c1444 JG	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
1dc9dd82 PP	29	#define BT_LOG_TAG "CTF-IR-UTILS"
	30	#include <babeltrace/lib-logging-internal.h>
	31
7e29d48b	32	#include <assert.h>
654c1444 JG	33	#include <stdlib.h>
654c1444 JG	34	#include <glib.h>
075edd49	35	#include <babeltrace/ctf-ir/utils.h>
654c1444 JG	36
	37	static
	38	const char * const reserved_keywords_str[] = {"align", "callsite",
	39	"const", "char", "clock", "double", "enum", "env", "event",
	40	"floating_point", "float", "integer", "int", "long", "short", "signed",
	41	"stream", "string", "struct", "trace", "typealias", "typedef",
	42	"unsigned", "variant", "void" "_Bool", "_Complex", "_Imaginary"};
	43
	44	static GHashTable *reserved_keywords_set;
	45	static int init_done;
654c1444	46
7e29d48b PP	47	static
7e29d48b PP	48	void try_init_reserved_keywords(void)
654c1444 JG	49	{
	50	size_t i;
	51	const size_t reserved_keywords_count =
	52	sizeof(reserved_keywords_str) / sizeof(char *);
	53
7e29d48b	54	if (reserved_keywords_set) {
654c1444 JG	55	return;
	56	}
	57
	58	reserved_keywords_set = g_hash_table_new(g_direct_hash, g_direct_equal);
7e29d48b PP	59	assert(reserved_keywords_set);
7e29d48b PP	60
654c1444 JG	61	for (i = 0; i < reserved_keywords_count; i++) {
	62	gpointer quark = GINT_TO_POINTER(g_quark_from_string(
	63	reserved_keywords_str[i]));
	64
	65	g_hash_table_insert(reserved_keywords_set, quark, quark);
	66	}
	67
	68	init_done = 1;
	69	}
	70
	71	static __attribute__((destructor))
	72	void trace_finalize(void)
	73	{
7e29d48b	74	if (reserved_keywords_set) {
654c1444 JG	75	g_hash_table_destroy(reserved_keywords_set);
	76	}
	77	}
	78
50842bdc	79	int bt_validate_identifier(const char *input_string)
654c1444 JG	80	{
	81	int ret = 0;
	82	char *string = NULL;
	83	char save_ptr, token;
	84
1dc9dd82 PP	85	if (!input_string) {
	86	BT_LOGV_STR("Invalid parameter: input string is NULL.");
	87	ret = -1;
	88	goto end;
	89	}
	90
7e29d48b PP	91	try_init_reserved_keywords();
7e29d48b PP	92
1dc9dd82	93	if (input_string[0] == '\0') {
654c1444 JG	94	ret = -1;
	95	goto end;
	96	}
	97
	98	string = strdup(input_string);
	99	if (!string) {
1dc9dd82	100	BT_LOGE("strdup() failed.");
654c1444 JG	101	ret = -1;
	102	goto end;
	103	}
	104
	105	token = strtok_r(string, " ", &save_ptr);
	106	while (token) {
	107	if (g_hash_table_lookup_extended(reserved_keywords_set,
	108	GINT_TO_POINTER(g_quark_from_string(token)),
	109	NULL, NULL)) {
	110	ret = -1;
	111	goto end;
	112	}
	113
	114	token = strtok_r(NULL, " ", &save_ptr);
	115	}
	116	end:
	117	free(string);
	118	return ret;
	119	}
075edd49	120
50842bdc	121	bt_bool bt_identifier_is_valid(const char *identifier)
075edd49	122	{
50842bdc	123	return bt_validate_identifier(identifier);
075edd49	124	}