1142971Sambrisko/*- 2142971Sambrisko * Copyright (C) 2005 IronPort Systems, Inc. All rights reserved. 3142971Sambrisko * 4142971Sambrisko * Redistribution and use in source and binary forms, with or without 5142971Sambrisko * modification, are permitted provided that the following conditions 6142971Sambrisko * are met: 7142971Sambrisko * 1. Redistributions of source code must retain the above copyright 8142971Sambrisko * notice, this list of conditions and the following disclaimer. 9142971Sambrisko * 2. Redistributions in binary form must reproduce the above copyright 10142971Sambrisko * notice, this list of conditions and the following disclaimer in the 11142971Sambrisko * documentation and/or other materials provided with the distribution. 12142971Sambrisko * 13142971Sambrisko * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14142971Sambrisko * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15142971Sambrisko * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16142971Sambrisko * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17142971Sambrisko * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18142971Sambrisko * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19142971Sambrisko * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20142971Sambrisko * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21142971Sambrisko * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22142971Sambrisko * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23142971Sambrisko * SUCH DAMAGE. 24142971Sambrisko * 25142971Sambrisko * $FreeBSD: stable/10/tests/sys/aio/aio_kqueue_test.c 319344 2017-05-31 17:20:55Z asomers $ 26142971Sambrisko */ 27142971Sambrisko 28142971Sambrisko/* 29218938Smiwi * Prerequisities: 30218938Smiwi * - AIO support must be compiled into the kernel (see sys/<arch>/NOTES for 31218938Smiwi * more details). 32218938Smiwi * 33142971Sambrisko * Note: it is a good idea to run this against a physical drive to 34142971Sambrisko * exercise the physio fast path (ie. aio_kqueue /dev/<something safe>) 35142971Sambrisko */ 36142971Sambrisko 37218938Smiwi#include <sys/types.h> 38218938Smiwi#include <sys/event.h> 39218938Smiwi#include <sys/time.h> 40142971Sambrisko#include <aio.h> 41218938Smiwi#include <err.h> 42218938Smiwi#include <errno.h> 43142971Sambrisko#include <fcntl.h> 44142971Sambrisko#include <stdlib.h> 45142971Sambrisko#include <stdio.h> 46218938Smiwi#include <string.h> 47142971Sambrisko#include <unistd.h> 48142971Sambrisko 49282858Sngie#include "freebsd_test_suite/macros.h" 50142971Sambrisko 51282858Sngie#define PATH_TEMPLATE "aio.XXXXXXXXXX" 52282858Sngie 53282858Sngie#define MAX_IOCBS 128 54142971Sambrisko#define MAX_RUNS 300 55142971Sambrisko/* #define DEBUG */ 56142971Sambrisko 57218938Smiwiint 58218938Smiwimain (int argc, char *argv[]) 59218938Smiwi{ 60282858Sngie struct aiocb *iocb[MAX_IOCBS], *kq_iocb; 61282858Sngie char *file, pathname[sizeof(PATH_TEMPLATE)+1]; 62142971Sambrisko struct kevent ke, kq_returned; 63142971Sambrisko struct timespec ts; 64282858Sngie char buffer[32768]; 65293140Sngie#ifdef DEBUG 66293140Sngie int cancel, error; 67293140Sngie#endif 68293140Sngie int failed = 0, fd, kq, pending, result, run; 69282858Sngie int tmp_file = 0; 70282858Sngie unsigned i, j; 71142971Sambrisko 72282858Sngie PLAIN_REQUIRE_KERNEL_MODULE("aio", 0); 73282858Sngie 74282858Sngie kq = kqueue(); 75142971Sambrisko if (kq < 0) { 76142971Sambrisko perror("No kqeueue\n"); 77142971Sambrisko exit(1); 78142971Sambrisko } 79142971Sambrisko 80142971Sambrisko if (argc == 1) { 81142971Sambrisko strcpy(pathname, PATH_TEMPLATE); 82142971Sambrisko fd = mkstemp(pathname); 83142971Sambrisko file = pathname; 84142971Sambrisko tmp_file = 1; 85142971Sambrisko } else { 86142971Sambrisko file = argv[1]; 87142971Sambrisko fd = open(file, O_RDWR|O_CREAT, 0666); 88142971Sambrisko } 89218938Smiwi if (fd == -1) 90218938Smiwi err(1, "Can't open %s\n", file); 91142971Sambrisko 92142971Sambrisko for (run = 0; run < MAX_RUNS; run++){ 93142971Sambrisko#ifdef DEBUG 94142971Sambrisko printf("Run %d\n", run); 95142971Sambrisko#endif 96282858Sngie for (i = 0; i < nitems(iocb); i++) { 97218938Smiwi iocb[i] = (struct aiocb *)calloc(1, 98218938Smiwi sizeof(struct aiocb)); 99218938Smiwi if (iocb[i] == NULL) 100218938Smiwi err(1, "calloc"); 101142971Sambrisko } 102293140Sngie 103293140Sngie pending = 0; 104282858Sngie for (i = 0; i < nitems(iocb); i++) { 105142971Sambrisko pending++; 106142971Sambrisko iocb[i]->aio_nbytes = sizeof(buffer); 107142971Sambrisko iocb[i]->aio_buf = buffer; 108142971Sambrisko iocb[i]->aio_fildes = fd; 109142971Sambrisko iocb[i]->aio_offset = iocb[i]->aio_nbytes * i * run; 110293140Sngie 111142971Sambrisko iocb[i]->aio_sigevent.sigev_notify_kqueue = kq; 112154668Sdavidxu iocb[i]->aio_sigevent.sigev_value.sival_ptr = iocb[i]; 113142971Sambrisko iocb[i]->aio_sigevent.sigev_notify = SIGEV_KEVENT; 114293140Sngie 115142971Sambrisko result = aio_write(iocb[i]); 116142971Sambrisko if (result != 0) { 117142971Sambrisko perror("aio_write"); 118218938Smiwi printf("Result %d iteration %d\n", result, i); 119142971Sambrisko exit(1); 120142971Sambrisko } 121142971Sambrisko#ifdef DEBUG 122142971Sambrisko printf("WRITE %d is at %p\n", i, iocb[i]); 123142971Sambrisko#endif 124142971Sambrisko result = rand(); 125142971Sambrisko if (result < RAND_MAX/32) { 126142971Sambrisko if (result > RAND_MAX/64) { 127142971Sambrisko result = aio_cancel(fd, iocb[i]); 128142971Sambrisko#ifdef DEBUG 129142971Sambrisko printf("Cancel %d %p result %d\n", i, iocb[i], result); 130142971Sambrisko#endif 131142971Sambrisko if (result == AIO_CANCELED) { 132142971Sambrisko aio_return(iocb[i]); 133218938Smiwi iocb[i] = NULL; 134142971Sambrisko pending--; 135142971Sambrisko } 136142971Sambrisko } 137142971Sambrisko } 138142971Sambrisko } 139293140Sngie#ifdef DEBUG 140282858Sngie cancel = nitems(iocb) - pending; 141293140Sngie#endif 142282858Sngie 143142971Sambrisko i = 0; 144218938Smiwi while (pending) { 145218938Smiwi 146218938Smiwi for (;;) { 147218938Smiwi 148142971Sambrisko bzero(&ke, sizeof(ke)); 149142971Sambrisko bzero(&kq_returned, sizeof(ke)); 150142971Sambrisko ts.tv_sec = 0; 151142971Sambrisko ts.tv_nsec = 1; 152293140Sngie result = kevent(kq, NULL, 0, 153142971Sambrisko &kq_returned, 1, &ts); 154293140Sngie#ifdef DEBUG 155142971Sambrisko error = errno; 156293140Sngie#endif 157218938Smiwi if (result < 0) 158142971Sambrisko perror("kevent error: "); 159142971Sambrisko kq_iocb = kq_returned.udata; 160142971Sambrisko#ifdef DEBUG 161142971Sambrisko printf("kevent %d %d errno %d return.ident %p " 162293140Sngie "return.data %p return.udata %p %p\n", 163293140Sngie i, result, error, 164319344Sasomers (void*)kq_returned.ident, 165319344Sasomers (void*)kq_returned.data, 166293140Sngie kq_returned.udata, 167142971Sambrisko kq_iocb); 168142971Sambrisko#endif 169293140Sngie 170218938Smiwi if (kq_iocb) 171142971Sambrisko break; 172142971Sambrisko#ifdef DEBUG 173319344Sasomers printf("Try again left %d out of %lu %d\n", 174282858Sngie pending, nitems(iocb), cancel); 175142971Sambrisko#endif 176293140Sngie } 177293140Sngie 178282858Sngie for (j = 0; j < nitems(iocb) && iocb[j] != kq_iocb; 179218938Smiwi j++) ; 180142971Sambrisko#ifdef DEBUG 181142971Sambrisko printf("kq_iocb %p\n", kq_iocb); 182293140Sngie 183218938Smiwi printf("Error Result for %d is %d pending %d\n", 184218938Smiwi j, result, pending); 185142971Sambrisko#endif 186142971Sambrisko result = aio_return(kq_iocb); 187142971Sambrisko#ifdef DEBUG 188218938Smiwi printf("Return Result for %d is %d\n\n", j, result); 189142971Sambrisko#endif 190142971Sambrisko if (result != sizeof(buffer)) { 191218938Smiwi printf("FAIL: run %d, operation %d, result %d " 192280895Sngie " (errno=%d) should be %zu\n", run, pending, 193218938Smiwi result, errno, sizeof(buffer)); 194218938Smiwi failed++; 195218938Smiwi } else 196218938Smiwi printf("PASS: run %d, left %d\n", run, 197218938Smiwi pending - 1); 198142971Sambrisko 199142971Sambrisko free(kq_iocb); 200142971Sambrisko iocb[j] = NULL; 201142971Sambrisko pending--; 202142971Sambrisko i++; 203293140Sngie } 204218938Smiwi 205282858Sngie for (i = 0; i < nitems(iocb); i++) 206218938Smiwi free(iocb[i]); 207218938Smiwi 208142971Sambrisko } 209142971Sambrisko 210218938Smiwi if (tmp_file) 211142971Sambrisko unlink(pathname); 212142971Sambrisko 213218938Smiwi if (failed != 0) 214218938Smiwi printf("FAIL: %d tests failed\n", failed); 215218938Smiwi else 216218938Smiwi printf("PASS: All tests passed\n"); 217218938Smiwi 218218938Smiwi exit (failed == 0 ? 0 : 1); 219142971Sambrisko} 220