/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or https://opensource.org/licenses/CDDL-1.0.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright (c) 2022 Tino Reichardt <milky-zfs@mcmilk.de>
 */

#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <sys/time.h>
#include <sys/blake3.h>

/*
 * set it to a define for debugging
 */
#undef	BLAKE3_DEBUG

/*
 * C version of:
 * https://github.com/BLAKE3-team/BLAKE3/tree/master/test_vectors
 */
typedef struct {
	/* input length for this entry */
	const int input_len;

	/* hash value */
	const char *hash;

	/* salted hash value */
	const char *shash;
} blake3_test_t;

/* BLAKE3 is variable here */
#define	TEST_DIGEST_LEN 262

/*
 * key for the keyed hashing
 */
static const char *salt = "whats the Elvish word for friend";

static blake3_test_t TestArray[] = {
	{
	    0,
	    "af1349b9f5f9a1a6a0404dea36dcc9499bcb25c9adc112b7cc9a93cae41f3262e0"
	    "0f03e7b69af26b7faaf09fcd333050338ddfe085b8cc869ca98b206c08243a26f5"
	    "487789e8f660afe6c99ef9e0c52b92e7393024a80459cf91f476f9ffdbda7001c2"
	    "2e159b402631f277ca96f2defdf1078282314e763699a31c5363165421cce14d",
	    "92b2b75604ed3c761f9d6f62392c8a9227ad0ea3f09573e783f1498a4ed60d26b1"
	    "8171a2f22a4b94822c701f107153dba24918c4bae4d2945c20ece13387627d3b73"
	    "cbf97b797d5e59948c7ef788f54372df45e45e4293c7dc18c1d41144a9758be589"
	    "60856be1eabbe22c2653190de560ca3b2ac4aa692a9210694254c371e851bc8f",
	},
	{
	    1,
	    "2d3adedff11b61f14c886e35afa036736dcd87a74d27b5c1510225d0f592e213c3"
	    "a6cb8bf623e20cdb535f8d1a5ffb86342d9c0b64aca3bce1d31f60adfa137b358a"
	    "d4d79f97b47c3d5e79f179df87a3b9776ef8325f8329886ba42f07fb138bb502f4"
	    "081cbcec3195c5871e6c23e2cc97d3c69a613eba131e5f1351f3f1da786545e5",
	    "6d7878dfff2f485635d39013278ae14f1454b8c0a3a2d34bc1ab38228a80c95b65"
	    "68c0490609413006fbd428eb3fd14e7756d90f73a4725fad147f7bf70fd61c4e0c"
	    "f7074885e92b0e3f125978b4154986d4fb202a3f331a3fb6cf349a3a70e49990f9"
	    "8fe4289761c8602c4e6ab1138d31d3b62218078b2f3ba9a88e1d08d0dd4cea11",
	},
	{
	    2,
	    "7b7015bb92cf0b318037702a6cdd81dee41224f734684c2c122cd6359cb1ee63d8"
	    "386b22e2ddc05836b7c1bb693d92af006deb5ffbc4c70fb44d0195d0c6f252faac"
	    "61659ef86523aa16517f87cb5f1340e723756ab65efb2f91964e14391de2a43226"
	    "3a6faf1d146937b35a33621c12d00be8223a7f1919cec0acd12097ff3ab00ab1",
	    "5392ddae0e0a69d5f40160462cbd9bd889375082ff224ac9c758802b7a6fd20a9f"
	    "fbf7efd13e989a6c246f96d3a96b9d279f2c4e63fb0bdff633957acf50ee1a5f65"
	    "8be144bab0f6f16500dee4aa5967fc2c586d85a04caddec90fffb7633f46a60786"
	    "024353b9e5cebe277fcd9514217fee2267dcda8f7b31697b7c54fab6a939bf8f",
	},
	{
	    3,
	    "e1be4d7a8ab5560aa4199eea339849ba8e293d55ca0a81006726d184519e647f5b"
	    "49b82f805a538c68915c1ae8035c900fd1d4b13902920fd05e1450822f36de9454"
	    "b7e9996de4900c8e723512883f93f4345f8a58bfe64ee38d3ad71ab027765d25cd"
	    "d0e448328a8e7a683b9a6af8b0af94fa09010d9186890b096a08471e4230a134",
	    "39e67b76b5a007d4921969779fe666da67b5213b096084ab674742f0d5ec62b9b9"
	    "142d0fab08e1b161efdbb28d18afc64d8f72160c958e53a950cdecf91c1a1bbab1"
	    "a9c0f01def762a77e2e8545d4dec241e98a89b6db2e9a5b070fc110caae2622690"
	    "bd7b76c02ab60750a3ea75426a6bb8803c370ffe465f07fb57def95df772c39f",
	},
	{
	    4,
	    "f30f5ab28fe047904037f77b6da4fea1e27241c5d132638d8bedce9d40494f328f"
	    "603ba4564453e06cdcee6cbe728a4519bbe6f0d41e8a14b5b225174a566dbfa61b"
	    "56afb1e452dc08c804f8c3143c9e2cc4a31bb738bf8c1917b55830c6e657972117"
	    "01dc0b98daa1faeaa6ee9e56ab606ce03a1a881e8f14e87a4acf4646272cfd12",
	    "7671dde590c95d5ac9616651ff5aa0a27bee5913a348e053b8aa9108917fe07011"
	    "6c0acff3f0d1fa97ab38d813fd46506089118147d83393019b068a55d646251ecf"
	    "81105f798d76a10ae413f3d925787d6216a7eb444e510fd56916f1d753a5544ecf"
	    "0072134a146b2615b42f50c179f56b8fae0788008e3e27c67482349e249cb86a",
	},
	{
	    5,
	    "b40b44dfd97e7a84a996a91af8b85188c66c126940ba7aad2e7ae6b385402aa2eb"
	    "cfdac6c5d32c31209e1f81a454751280db64942ce395104e1e4eaca62607de1c2c"
	    "a748251754ea5bbe8c20150e7f47efd57012c63b3c6a6632dc1c7cd15f3e1c9999"
	    "04037d60fac2eb9397f2adbe458d7f264e64f1e73aa927b30988e2aed2f03620",
	    "73ac69eecf286894d8102018a6fc729f4b1f4247d3703f69bdc6a5fe3e0c84616a"
	    "b199d1f2f3e53bffb17f0a2209fe8b4f7d4c7bae59c2bc7d01f1ff94c67588cc6b"
	    "38fa6024886f2c078bfe09b5d9e6584cd6c521c3bb52f4de7687b37117a2dbbec0"
	    "d59e92fa9a8cc3240d4432f91757aabcae03e87431dac003e7d73574bfdd8218",
	},
	{
	    6,
	    "06c4e8ffb6872fad96f9aaca5eee1553eb62aed0ad7198cef42e87f6a616c84461"
	    "1a30c4e4f37fe2fe23c0883cde5cf7059d88b657c7ed2087e3d210925ede716435"
	    "d6d5d82597a1e52b9553919e804f5656278bd739880692c94bff2824d8e0b48cac"
	    "1d24682699e4883389dc4f2faa2eb3b4db6e39debd5061ff3609916f3e07529a",
	    "82d3199d0013035682cc7f2a399d4c212544376a839aa863a0f4c91220ca7a6dc2"
	    "ffb3aa05f2631f0fa9ac19b6e97eb7e6669e5ec254799350c8b8d189e880780084"
	    "2a5383c4d907c932f34490aaf00064de8cdb157357bde37c1504d2960034930887"
	    "603abc5ccb9f5247f79224baff6120a3c622a46d7b1bcaee02c5025460941256",
	},
	{
	    7,
	    "3f8770f387faad08faa9d8414e9f449ac68e6ff0417f673f602a646a891419fe66"
	    "036ef6e6d1a8f54baa9fed1fc11c77cfb9cff65bae915045027046ebe0c01bf5a9"
	    "41f3bb0f73791d3fc0b84370f9f30af0cd5b0fc334dd61f70feb60dad785f070fe"
	    "f1f343ed933b49a5ca0d16a503f599a365a4296739248b28d1a20b0e2cc8975c",
	    "af0a7ec382aedc0cfd626e49e7628bc7a353a4cb108855541a5651bf64fbb28a7c"
	    "5035ba0f48a9c73dabb2be0533d02e8fd5d0d5639a18b2803ba6bf527e1d145d5f"
	    "d6406c437b79bcaad6c7bdf1cf4bd56a893c3eb9510335a7a798548c6753f74617"
	    "bede88bef924ba4b334f8852476d90b26c5dc4c3668a2519266a562c6c8034a6",
	},
	{
	    8,
	    "2351207d04fc16ade43ccab08600939c7c1fa70a5c0aaca76063d04c3228eaeb72"
	    "5d6d46ceed8f785ab9f2f9b06acfe398c6699c6129da084cb531177445a682894f"
	    "9685eaf836999221d17c9a64a3a057000524cd2823986db378b074290a1a9b93a2"
	    "2e135ed2c14c7e20c6d045cd00b903400374126676ea78874d79f2dd7883cf5c",
	    "be2f5495c61cba1bb348a34948c004045e3bd4dae8f0fe82bf44d0da245a060048"
	    "eb5e68ce6dea1eb0229e144f578b3aa7e9f4f85febd135df8525e6fe40c6f0340d"
	    "13dd09b255ccd5112a94238f2be3c0b5b7ecde06580426a93e0708555a265305ab"
	    "f86d874e34b4995b788e37a823491f25127a502fe0704baa6bfdf04e76c13276",
	},
	{
	    63,
	    "e9bc37a594daad83be9470df7f7b3798297c3d834ce80ba85d6e207627b7db7b11"
	    "97012b1e7d9af4d7cb7bdd1f3bb49a90a9b5dec3ea2bbc6eaebce77f4e470cbf46"
	    "87093b5352f04e4a4570fba233164e6acc36900e35d185886a827f7ea9bdc1e5c3"
	    "ce88b095a200e62c10c043b3e9bc6cb9b6ac4dfa51794b02ace9f98779040755",
	    "bb1eb5d4afa793c1ebdd9fb08def6c36d10096986ae0cfe148cd101170ce37aea0"
	    "5a63d74a840aecd514f654f080e51ac50fd617d22610d91780fe6b07a26b0847ab"
	    "b38291058c97474ef6ddd190d30fc318185c09ca1589d2024f0a6f16d45f116783"
	    "77483fa5c005b2a107cb9943e5da634e7046855eaa888663de55d6471371d55d",
	},
	{
	    64,
	    "4eed7141ea4a5cd4b788606bd23f46e212af9cacebacdc7d1f4c6dc7f2511b98fc"
	    "9cc56cb831ffe33ea8e7e1d1df09b26efd2767670066aa82d023b1dfe8ab1b2b7f"
	    "bb5b97592d46ffe3e05a6a9b592e2949c74160e4674301bc3f97e04903f8c6cf95"
	    "b863174c33228924cdef7ae47559b10b294acd660666c4538833582b43f82d74",
	    "ba8ced36f327700d213f120b1a207a3b8c04330528586f414d09f2f7d9ccb7e682"
	    "44c26010afc3f762615bbac552a1ca909e67c83e2fd5478cf46b9e811efccc93f7"
	    "7a21b17a152ebaca1695733fdb086e23cd0eb48c41c034d52523fc21236e5d8c92"
	    "55306e48d52ba40b4dac24256460d56573d1312319afcf3ed39d72d0bfc69acb",
	},
	{
	    65,
	    "de1e5fa0be70df6d2be8fffd0e99ceaa8eb6e8c93a63f2d8d1c30ecb6b263dee0e"
	    "16e0a4749d6811dd1d6d1265c29729b1b75a9ac346cf93f0e1d7296dfcfd4313b3"
	    "a227faaaaf7757cc95b4e87a49be3b8a270a12020233509b1c3632b3485eef309d"
	    "0abc4a4a696c9decc6e90454b53b000f456a3f10079072baaf7a981653221f2c",
	    "c0a4edefa2d2accb9277c371ac12fcdbb52988a86edc54f0716e1591b4326e72d5"
	    "e795f46a596b02d3d4bfb43abad1e5d19211152722ec1f20fef2cd413e3c22f2fc"
	    "5da3d73041275be6ede3517b3b9f0fc67ade5956a672b8b75d96cb43294b904149"
	    "7de92637ed3f2439225e683910cb3ae923374449ca788fb0f9bea92731bc26ad",
	},
	{
	    127,
	    "d81293fda863f008c09e92fc382a81f5a0b4a1251cba1634016a0f86a6bd640de3"
	    "137d477156d1fde56b0cf36f8ef18b44b2d79897bece12227539ac9ae0a5119da4"
	    "7644d934d26e74dc316145dcb8bb69ac3f2e05c242dd6ee06484fcb0e956dc4435"
	    "5b452c5e2bbb5e2b66e99f5dd443d0cbcaaafd4beebaed24ae2f8bb672bcef78",
	    "c64200ae7dfaf35577ac5a9521c47863fb71514a3bcad18819218b818de85818ee"
	    "7a317aaccc1458f78d6f65f3427ec97d9c0adb0d6dacd4471374b621b7b5f35cd5"
	    "4663c64dbe0b9e2d95632f84c611313ea5bd90b71ce97b3cf645776f3adc11e27d"
	    "135cbadb9875c2bf8d3ae6b02f8a0206aba0c35bfe42574011931c9a255ce6dc",
	},
	{
	    128,
	    "f17e570564b26578c33bb7f44643f539624b05df1a76c81f30acd548c44b45efa6"
	    "9faba091427f9c5c4caa873aa07828651f19c55bad85c47d1368b11c6fd99e47ec"
	    "ba5820a0325984d74fe3e4058494ca12e3f1d3293d0010a9722f7dee64f71246f7"
	    "5e9361f44cc8e214a100650db1313ff76a9f93ec6e84edb7add1cb4a95019b0c",
	    "b04fe15577457267ff3b6f3c947d93be581e7e3a4b018679125eaf86f6a628ecd8"
	    "6bbe0001f10bda47e6077b735016fca8119da11348d93ca302bbd125bde0db2b50"
	    "edbe728a620bb9d3e6f706286aedea973425c0b9eedf8a38873544cf91badf49ad"
	    "92a635a93f71ddfcee1eae536c25d1b270956be16588ef1cfef2f1d15f650bd5",
	},
	{
	    129,
	    "683aaae9f3c5ba37eaaf072aed0f9e30bac0865137bae68b1fde4ca2aebdcb12f9"
	    "6ffa7b36dd78ba321be7e842d364a62a42e3746681c8bace18a4a8a79649285c71"
	    "27bf8febf125be9de39586d251f0d41da20980b70d35e3dac0eee59e468a894fa7"
	    "e6a07129aaad09855f6ad4801512a116ba2b7841e6cfc99ad77594a8f2d181a7",
	    "d4a64dae6cdccbac1e5287f54f17c5f985105457c1a2ec1878ebd4b57e20d38f1c"
	    "9db018541eec241b748f87725665b7b1ace3e0065b29c3bcb232c90e37897fa5aa"
	    "ee7e1e8a2ecfcd9b51463e42238cfdd7fee1aecb3267fa7f2128079176132a412c"
	    "d8aaf0791276f6b98ff67359bd8652ef3a203976d5ff1cd41885573487bcd683",
	},
	{
	    1023,
	    "10108970eeda3eb932baac1428c7a2163b0e924c9a9e25b35bba72b28f70bd11a1"
	    "82d27a591b05592b15607500e1e8dd56bc6c7fc063715b7a1d737df5bad3339c56"
	    "778957d870eb9717b57ea3d9fb68d1b55127bba6a906a4a24bbd5acb2d123a37b2"
	    "8f9e9a81bbaae360d58f85e5fc9d75f7c370a0cc09b6522d9c8d822f2f28f485",
	    "c951ecdf03288d0fcc96ee3413563d8a6d3589547f2c2fb36d9786470f1b9d6e89"
	    "0316d2e6d8b8c25b0a5b2180f94fb1a158ef508c3cde45e2966bd796a696d3e13e"
	    "fd86259d756387d9becf5c8bf1ce2192b87025152907b6d8cc33d17826d8b7b9bc"
	    "97e38c3c85108ef09f013e01c229c20a83d9e8efac5b37470da28575fd755a10",
	},
	{
	    1024,
	    "42214739f095a406f3fc83deb889744ac00df831c10daa55189b5d121c855af71c"
	    "f8107265ecdaf8505b95d8fcec83a98a6a96ea5109d2c179c47a387ffbb404756f"
	    "6eeae7883b446b70ebb144527c2075ab8ab204c0086bb22b7c93d465efc57f8d91"
	    "7f0b385c6df265e77003b85102967486ed57db5c5ca170ba441427ed9afa684e",
	    "75c46f6f3d9eb4f55ecaaee480db732e6c2105546f1e675003687c31719c7ba4a7"
	    "8bc838c72852d4f49c864acb7adafe2478e824afe51c8919d06168414c265f298a"
	    "8094b1ad813a9b8614acabac321f24ce61c5a5346eb519520d38ecc43e89b50002"
	    "36df0597243e4d2493fd626730e2ba17ac4d8824d09d1a4a8f57b8227778e2de",
	},
	{
	    1025,
	    "d00278ae47eb27b34faecf67b4fe263f82d5412916c1ffd97c8cb7fb814b8444f4"
	    "c4a22b4b399155358a994e52bf255de60035742ec71bd08ac275a1b51cc6bfe332"
	    "b0ef84b409108cda080e6269ed4b3e2c3f7d722aa4cdc98d16deb554e5627be8f9"
	    "55c98e1d5f9565a9194cad0c4285f93700062d9595adb992ae68ff12800ab67a",
	    "357dc55de0c7e382c900fd6e320acc04146be01db6a8ce7210b7189bd664ea6936"
	    "2396b77fdc0d2634a552970843722066c3c15902ae5097e00ff53f1e116f1cd535"
	    "2720113a837ab2452cafbde4d54085d9cf5d21ca613071551b25d52e69d6c81123"
	    "872b6f19cd3bc1333edf0c52b94de23ba772cf82636cff4542540a7738d5b930",
	},
	{
	    2048,
	    "e776b6028c7cd22a4d0ba182a8bf62205d2ef576467e838ed6f2529b85fba24a9a"
	    "60bf80001410ec9eea6698cd537939fad4749edd484cb541aced55cd9bf54764d0"
	    "63f23f6f1e32e12958ba5cfeb1bf618ad094266d4fc3c968c2088f677454c288c6"
	    "7ba0dba337b9d91c7e1ba586dc9a5bc2d5e90c14f53a8863ac75655461cea8f9",
	    "879cf1fa2ea0e79126cb1063617a05b6ad9d0b696d0d757cf053439f60a99dd101"
	    "73b961cd574288194b23ece278c330fbb8585485e74967f31352a8183aa782b2b2"
	    "2f26cdcadb61eed1a5bc144b8198fbb0c13abbf8e3192c145d0a5c21633b0ef860"
	    "54f42809df823389ee40811a5910dcbd1018af31c3b43aa55201ed4edaac74fe",
	},
	{
	    2049,
	    "5f4d72f40d7a5f82b15ca2b2e44b1de3c2ef86c426c95c1af0b687952256303096"
	    "de31d71d74103403822a2e0bc1eb193e7aecc9643a76b7bbc0c9f9c52e8783aae9"
	    "8764ca468962b5c2ec92f0c74eb5448d519713e09413719431c802f948dd5d9042"
	    "5a4ecdadece9eb178d80f26efccae630734dff63340285adec2aed3b51073ad3",
	    "9f29700902f7c86e514ddc4df1e3049f258b2472b6dd5267f61bf13983b78dd5f9"
	    "a88abfefdfa1e00b418971f2b39c64ca621e8eb37fceac57fd0c8fc8e117d43b81"
	    "447be22d5d8186f8f5919ba6bcc6846bd7d50726c06d245672c2ad4f61702c6464"
	    "99ee1173daa061ffe15bf45a631e2946d616a4c345822f1151284712f76b2b0e",
	},
	{
	    3072,
	    "b98cb0ff3623be03326b373de6b9095218513e64f1ee2edd2525c7ad1e5cffd29a"
	    "3f6b0b978d6608335c09dc94ccf682f9951cdfc501bfe47b9c9189a6fc7b404d12"
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	{
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	    "1c59dab908c04c3342b816941a26d69c2605ebee5ec5291cc55e15b76146e6745f"
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	    "aa1aca298a032d94eacfadf1aa192418eb54808db23b56e34213266aa08499a16b"
	    "354f018fc4967d05f8b9d2ad87a7278337be9693fc638a3bfdbe314574ee6fc4",
	},
	{
	    0, 0, 0
	}
};

#ifdef BLAKE3_DEBUG
#define	dprintf printf
#else
#define	dprintf(...)
#endif

static char fmt_tohex(char c);
static size_t fmt_hexdump(char *dest, const char *src, size_t len);

static char fmt_tohex(char c) {
	return ((char)(c >= 10 ? c-10+'a' : c+'0'));
}

static size_t fmt_hexdump(char *dest, const char *src, size_t len) {
	register const unsigned char *s = (const unsigned char *) src;
	size_t written = 0, i;

	if (!dest)
		return ((len > ((size_t)-1)/2) ? (size_t)-1 : len*2);
	for (i = 0; i < len; ++i) {
		dest[written] = fmt_tohex(s[i]>>4);
		dest[written+1] = fmt_tohex(s[i]&15);
		written += 2;
	}

	return (written);
}

int
main(int argc, char *argv[])
{
	boolean_t failed = B_FALSE;
	uint8_t buffer[102400];
	uint64_t cpu_mhz = 0;
	int id, i, j;

	if (argc == 2)
		cpu_mhz = atoi(argv[1]);

	/* fill test message */
	for (i = 0, j = 0; i < sizeof (buffer); i++, j++) {
		if (j == 251)
			j = 0;
		buffer[i] = (uint8_t)j;
	}

	(void) printf("Running algorithm correctness tests:\n");
	for (id = 0; id < blake3_impl_getcnt(); id++) {
		blake3_impl_setid(id);
		const char *name = blake3_impl_getname();
		dprintf("Result for BLAKE3-%s:\n", name);
		for (i = 0; TestArray[i].hash; i++) {
			blake3_test_t *cur = &TestArray[i];

			BLAKE3_CTX ctx;
			uint8_t digest[TEST_DIGEST_LEN];
			char result[TEST_DIGEST_LEN];

			/* default hashing */
			Blake3_Init(&ctx);
			Blake3_Update(&ctx, buffer, cur->input_len);
			Blake3_FinalSeek(&ctx, 0, digest, TEST_DIGEST_LEN);
			fmt_hexdump(result, (char *)digest, 131);
			if (memcmp(result, cur->hash, 131) != 0)
				failed = B_TRUE;

			dprintf("HASH-res:  %s\n", result);
			dprintf("HASH-ref:  %s\n", cur->hash);

			/* salted hashing */
			Blake3_InitKeyed(&ctx, (const uint8_t *)salt);
			Blake3_Update(&ctx, buffer, cur->input_len);
			Blake3_FinalSeek(&ctx, 0, digest, TEST_DIGEST_LEN);
			fmt_hexdump(result, (char *)digest, 131);
			if (memcmp(result, cur->shash, 131) != 0)
				failed = B_TRUE;

			dprintf("SHASH-res: %s\n", result);
			dprintf("SHASH-ref: %s\n", cur->shash);

			printf("BLAKE3-%s Message (inlen=%d)\tResult: %s\n",
			    name, cur->input_len, failed?"FAILED!":"OK");
		}
	}

	if (failed)
		return (1);

#define	BLAKE3_PERF_TEST(impl, diglen)					\
	do {								\
		BLAKE3_CTX	ctx;					\
		uint8_t		digest[diglen / 8];			\
		uint8_t		block[131072];				\
		uint64_t	delta;					\
		double		cpb = 0;				\
		int		i;					\
		struct timeval	start, end;				\
		memset(block, 0, sizeof (block));			\
		(void) gettimeofday(&start, NULL);			\
		Blake3_Init(&ctx);					\
		for (i = 0; i < 8192; i++)				\
			Blake3_Update(&ctx, block, sizeof (block));	\
		Blake3_Final(&ctx, digest);				\
		(void) gettimeofday(&end, NULL);			\
		delta = (end.tv_sec * 1000000llu + end.tv_usec) -	\
		    (start.tv_sec * 1000000llu + start.tv_usec);	\
		if (cpu_mhz != 0) {					\
			cpb = (cpu_mhz * 1e6 * ((double)delta /		\
			    1000000)) / (8192 * 128 * 1024);		\
		}							\
		(void) printf("BLAKE3-%s %llu us (%.02f CPB)\n", impl,	\
		    (u_longlong_t)delta, cpb);				\
	} while (0)

	printf("Running performance tests (hashing 1024 MiB of data):\n");
	for (id = 0; id < blake3_impl_getcnt(); id++) {
		blake3_impl_setid(id);
		const char *name = blake3_impl_getname();
		BLAKE3_PERF_TEST(name, 256);
	}

	return (0);
}