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Diffstat (limited to 'include/iprt/uuid.h')
| -rw-r--r-- | include/iprt/uuid.h | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/include/iprt/uuid.h b/include/iprt/uuid.h new file mode 100644 index 00000000..3da55b3b --- /dev/null +++ b/include/iprt/uuid.h @@ -0,0 +1,188 @@ +/** @file + * IPRT - Universal Unique Identifiers (UUID). + */ + +/* + * Copyright (C) 2006-2019 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + +#ifndef IPRT_INCLUDED_uuid_h +#define IPRT_INCLUDED_uuid_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <iprt/cdefs.h> +#include <iprt/types.h> + +RT_C_DECLS_BEGIN + +/** @defgroup grp_rt_uuid RTUuid - Universally Unique Identifiers + * @ingroup grp_rt + * @{ + */ + +/** + * Generates new UUID value. + * + * @note IPRT uses little endian byte ordering in the UUID integer fields. If + * you want to pass IPRT UUIDs in binary representation to other UUID libraries + * and expect to get exactly the same string representation as in IPRT, you + * need to convert the first three integer fields (one 32 bit value, two 16 bit + * values) separately to big endian (also called network byte order). + * + * @sa RTUUID::Gen + * + * @returns iprt status code. + * @param pUuid Where to store generated uuid. + */ +RTDECL(int) RTUuidCreate(PRTUUID pUuid); + +/** + * Makes null UUID value. + * + * @returns iprt status code. + * @param pUuid Where to store generated null uuid. + */ +RTDECL(int) RTUuidClear(PRTUUID pUuid); + +/** + * Checks if UUID is null. + * + * @returns true if UUID is null. + * @param pUuid uuid to check. + */ +RTDECL(bool) RTUuidIsNull(PCRTUUID pUuid); + +/** + * Compares two UUID values. + * + * @returns 0 if eq, < 0 or > 0. + * @param pUuid1 First value to compare. NULL is treated like if + * RTUuidIsNull() return true. + * @param pUuid2 Second value to compare. NULL is treated like if + * RTUuidIsNull() return true. + */ +RTDECL(int) RTUuidCompare(PCRTUUID pUuid1, PCRTUUID pUuid2); + +/** + * Compares a UUID value with a UUID string. + * + * @note IPRT uses little endian byte ordering in the UUID integer fields. If + * you want to pass IPRT UUIDs in binary representation to other UUID libraries + * and expect to get exactly the same string representation as in IPRT, you need + * to convert the first three integer fields (one 32 bit value, two 16 bit + * values) separately to big endian (also called network byte order). + * Correspondingly, if you want to get the right result with UUIDs which are in + * big endian format, you need to convert them before using this function. + * + * @sa RTUUID::Gen + * + * @returns 0 if eq, < 0 or > 0. + * @param pUuid1 First value to compare. NULL is not allowed. + * @param pszString2 The 2nd UUID in string form. NULL or malformed + * string is not permitted. + */ +RTDECL(int) RTUuidCompareStr(PCRTUUID pUuid1, const char *pszString2); + +/** + * Compares two UUID strings. + * + * @returns 0 if eq, < 0 or > 0. + * @param pszString1 The 1st UUID in string from. NULL or malformed + * string is not permitted. + * @param pszString2 The 2nd UUID in string form. NULL or malformed + * string is not permitted. + */ +RTDECL(int) RTUuidCompare2Strs(const char *pszString1, const char *pszString2); + +/** + * Converts binary UUID to its string representation. + * + * @note IPRT uses little endian byte ordering in the UUID integer fields. If + * you want to pass IPRT UUIDs in binary representation to other UUID libraries + * and expect to get exactly the same string representation as in IPRT, you + * need to convert the first three integer fields (one 32 bit value, two 16 bit + * values) separately to big endian (also called network byte order). + * Correspondingly, if you want to get the right result with UUIDs which are in + * big endian format, you need to convert them before using this function. + * + * @sa RTUUID::Gen + * + * @returns iprt status code. + * @param pUuid Uuid to convert. + * @param pszString Where to store result string. + * @param cchString pszString buffer length, must be >= RTUUID_STR_LENGTH. + */ +RTDECL(int) RTUuidToStr(PCRTUUID pUuid, char *pszString, size_t cchString); + +/** + * Converts UUID from its string representation to binary format. + * + * @note IPRT uses little endian byte ordering in the UUID integer fields. If + * you want to pass IPRT UUIDs in binary representation to other UUID libraries + * and expect to get exactly the same string representation as in IPRT, you + * need to convert the first three integer fields (one 32 bit value, two 16 bit + * values) separately to big endian (also called network byte order). + * Correspondingly, if you want to get the right result with UUIDs which are in + * big endian format, you need to convert them before using this function. + * + * @sa RTUUID::Gen + * + * @returns iprt status code. + * @param pUuid Where to store result Uuid. + * @param pszString String with UUID text data. + */ +RTDECL(int) RTUuidFromStr(PRTUUID pUuid, const char *pszString); + +/** + * Converts binary UUID to its UTF-16 string representation. + * + * @note See note in RTUuidToStr. + * + * @sa RTUUID::Gen + * + * @returns iprt status code. + * @param pUuid Uuid to convert. + * @param pwszString Where to store result string. + * @param cwcString pszString buffer length, must be >= + * RTUUID_STR_LENGTH. + */ +RTDECL(int) RTUuidToUtf16(PCRTUUID pUuid, PRTUTF16 pwszString, size_t cwcString); + +/** + * Converts UUID from its UTF-16 string representation to binary format. + * + * @note See note in RTUuidFromStr. + * + * @sa RTUUID::Gen + * + * @returns iprt status code. + * @param pUuid Where to store result Uuid. + * @param pwszString String with UUID text data. + */ +RTDECL(int) RTUuidFromUtf16(PRTUUID pUuid, PCRTUTF16 pwszString); + +/** @} */ + +RT_C_DECLS_END + +#endif /* !IPRT_INCLUDED_uuid_h */ + |