/* Copyright (c) 2008, 2009, 2010, 2016, 2017 Nicira, Inc.

 *

 * Licensed 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.

 */

#ifndef UUID_H

#define UUID_H 1

#include "util.h"

#include "openvswitch/uuid.h"

#ifdef __cplusplus

extern "C" {

#endif

/* An initializer or expression for an all-zero UUID. */

#define UUID_ZERO ((struct uuid) { .parts = { 0, 0, 0, 0 } })

/* Formats a UUID as a string, in the conventional format.

 *

 * Example:

 *   struct uuid uuid = ...;

 *   printf("This UUID is "UUID_FMT"\n", UUID_ARGS(&uuid));

 *

 */

#define UUID_LEN 36

#define UUID_FMT "%08x-%04x-%04x-%04x-%04x%08x"

#define UUID_ARGS(UUID)                             \

    ((unsigned int) ((UUID)->parts[0])),            \

    ((unsigned int) ((UUID)->parts[1] >> 16)),      \

    ((unsigned int) ((UUID)->parts[1] & 0xffff)),   \

    ((unsigned int) ((UUID)->parts[2] >> 16)),      \

    ((unsigned int) ((UUID)->parts[2] & 0xffff)),   \

    ((unsigned int) ((UUID)->parts[3]))

/* Returns a hash value for 'uuid'.  This hash value is the same regardless of

 * whether we are running on a 32-bit or 64-bit or big-endian or little-endian

 * architecture. */

static inline size_t

uuid_hash(const struct uuid *uuid)

{

    return uuid->parts[0];

}

Unexecuted instantiation: json.c:uuid_hash

Unexecuted instantiation: dynamic-string.c:uuid_hash

/* Returns true if 'a == b', false otherwise. */

static inline bool

uuid_equals(const struct uuid *a, const struct uuid *b)

{

    return (a->parts[0] == b->parts[0]

            && a->parts[1] == b->parts[1]

            && a->parts[2] == b->parts[2]

            && a->parts[3] == b->parts[3]);

}

Unexecuted instantiation: json.c:uuid_equals

Unexecuted instantiation: dynamic-string.c:uuid_equals

/* Returns the first 'n' hex digits of 'uuid', for 0 < 'n' <= 8.

 *

 * This is useful for displaying a few leading digits of the uuid, e.g. to

 * display 4 digits:

 *     printf("%04x", uuid_prefix(uuid, 4));

 */

static inline unsigned int

uuid_prefix(const struct uuid *uuid, int digits)

{

    return (uuid->parts[0] >> (32 - 4 * digits));

}

Unexecuted instantiation: json.c:uuid_prefix

Unexecuted instantiation: dynamic-string.c:uuid_prefix

/* Returns a string representation of a UUID.

 *

 * The string is allocated on the heap. Ownership of the string is

 * transferred to the caller.

 */

static inline char *

uuid_to_string(const struct uuid *uuid)

{

    char *data = xmalloc(UUID_LEN + 1);

    snprintf(data, UUID_LEN + 1, UUID_FMT, UUID_ARGS(uuid));

    return data;

}

Unexecuted instantiation: json.c:uuid_to_string

Unexecuted instantiation: dynamic-string.c:uuid_to_string

void uuid_init(void);

void uuid_generate(struct uuid *);

struct uuid uuid_random(void);

void uuid_zero(struct uuid *);

bool uuid_is_zero(const struct uuid *);

int uuid_compare_3way(const struct uuid *, const struct uuid *);

bool uuid_from_string(struct uuid *, const char *);

bool uuid_from_string_prefix(struct uuid *, const char *);

int uuid_is_partial_string(const char *);

int uuid_is_partial_match(const struct uuid *, const char *match);

void uuid_set_bits_v4(struct uuid *);

#ifdef __cplusplus

}

#endif

#endif /* uuid.h */