/* Licensed to the Apache Software Foundation (ASF) under one or more

 * contributor license agreements.  See the NOTICE file distributed with

 * this work for additional information regarding copyright ownership.

 * The ASF licenses this file to You under the Apache License, Version 2.0

 * (the "License"); you may not use this file except in compliance with

 * the License.  You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

/**

 * @file apr_uuid.h

 * @brief APR UUID library

 */

#ifndef APR_UUID_H

#define APR_UUID_H

#include "apu.h"

#include "apr_errno.h"

#ifdef __cplusplus

extern "C" {

#endif /* __cplusplus */

/**

 * @defgroup APR_UUID UUID Handling

 * @ingroup APR

 * @{

 */

/**

 * we represent a UUID as a block of 16 bytes.

 */

typedef struct {

    unsigned char data[16]; /**< the actual UUID */

} apr_uuid_t;

/** UUIDs are formatted as: 00112233-4455-6677-8899-AABBCCDDEEFF */

#define APR_UUID_FORMATTED_LENGTH 36

/**

 * Generate and return a (new) UUID

 * @param uuid The resulting UUID

 */ 

APU_DECLARE(void) apr_uuid_get(apr_uuid_t *uuid);

/**

 * Format a UUID into a string, following the standard format

 * @param buffer The buffer to place the formatted UUID string into. It must

 *               be at least APR_UUID_FORMATTED_LENGTH + 1 bytes long to hold

 *               the formatted UUID and a null terminator

 * @param uuid The UUID to format

 */ 

APU_DECLARE(void) apr_uuid_format(char *buffer, const apr_uuid_t *uuid);

/**

 * Parse a standard-format string into a UUID

 * @param uuid The resulting UUID

 * @param uuid_str The formatted UUID

 */ 

APU_DECLARE(apr_status_t) apr_uuid_parse(apr_uuid_t *uuid, const char *uuid_str);

/** @} */

#ifdef __cplusplus

}

#endif

#endif /* APR_UUID_H */