rspamd/contrib/fastutf8/fastutf8.h

/*
 * MIT License
 *
 * Copyright (c) 2019 Yibo Cai
 * Copyright (c) 2019 Vsevolod Stakhov
 * 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.
 */

#ifndef RSPAMD_FASTUTF8_H
#define RSPAMD_FASTUTF8_H

#include <sys/types.h>
#include <stdbool.h>
#include <stdint.h>

#ifdef  __cplusplus
extern "C" {
#endif
enum rspamd_fast_utf8_cpu_flags {
	RSPAMD_FAST_UTF8_FLAG_SSE41 = 1u << 0u,
	RSPAMD_FAST_UTF8_FLAG_AVX2 = 1u << 1u,
};

/**
 * Called to init codecs
 * @param flags
 */
void rspamd_fast_utf8_library_init(unsigned flags);

/**
 * Called to validate input using fast codec
 * @param data
 * @param len
 * @return
 */
off_t rspamd_fast_utf8_validate(const unsigned char *data, size_t len);

/**
 * Use plain C implementation
 * @param data
 * @param len
 * @return
 */
off_t rspamd_fast_utf8_validate_ref(const unsigned char *data, size_t len);

#ifdef  __cplusplus
}
#endif
#endif