diff options
Diffstat (limited to 'tests/sys/aio/lio_kqueue_test.c')
-rw-r--r-- | tests/sys/aio/lio_kqueue_test.c | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/tests/sys/aio/lio_kqueue_test.c b/tests/sys/aio/lio_kqueue_test.c new file mode 100644 index 0000000..5cc87b3 --- /dev/null +++ b/tests/sys/aio/lio_kqueue_test.c @@ -0,0 +1,249 @@ +/*- + * Copyright (C) 2005 IronPort Systems, Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +/* + * Note: it is a good idea to run this against a physical drive to + * exercise the physio fast path (ie. lio_kqueue /dev/<something safe>) + * This will ensure op's counting is correct. It is currently broken. + * + * Also note that LIO & kqueue is not implemented in FreeBSD yet, LIO + * is also broken with respect to op's and some paths. + * + * A patch to make this work is at: + * http://www.ambrisko.com/doug/listio_kqueue/listio_kqueue.patch + */ + +#include <sys/types.h> +#include <sys/event.h> +#include <sys/time.h> +#include <aio.h> +#include <fcntl.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "freebsd_test_suite/macros.h" + +#define PATH_TEMPLATE "aio.XXXXXXXXXX" + +#define LIO_MAX 5 +#define MAX_IOCBS LIO_MAX * 16 +#define MAX_RUNS 300 + +int +main(int argc, char *argv[]){ + int fd; + struct aiocb *iocb[MAX_IOCBS]; + struct aiocb **lio[LIO_MAX], **lio_element, **kq_lio; + int i, result, run, error, j, k; + char buffer[32768]; + int kq = kqueue(); + struct kevent ke, kq_returned; + struct timespec ts; + struct sigevent sig; + time_t time1, time2; + char *file, pathname[sizeof(PATH_TEMPLATE)-1]; + int tmp_file = 0, failed = 0; + + PLAIN_REQUIRE_KERNEL_MODULE("aio", 0); + + if (kq < 0) { + perror("No kqeueue\n"); + exit(1); + } + + if (argc == 1) { + strcpy(pathname, PATH_TEMPLATE); + fd = mkstemp(pathname); + file = pathname; + tmp_file = 1; + } else { + file = argv[1]; + fd = open(file, O_RDWR|O_CREAT, 0666); + } + if (fd < 0){ + fprintf(stderr, "Can't open %s\n", argv[1]); + perror(""); + exit(1); + } + +#ifdef DEBUG + printf("Hello kq %d fd %d\n", kq, fd); +#endif + + for (run = 0; run < MAX_RUNS; run++){ +#ifdef DEBUG + printf("Run %d\n", run); +#endif + for (j = 0; j < LIO_MAX; j++) { + lio[j] = (struct aiocb **) + malloc(sizeof(struct aiocb *) * MAX_IOCBS/LIO_MAX); + for(i = 0; i < MAX_IOCBS / LIO_MAX; i++) { + k = (MAX_IOCBS / LIO_MAX * j) + i; + lio_element = lio[j]; + lio[j][i] = iocb[k] = (struct aiocb *) + malloc(sizeof(struct aiocb)); + bzero(iocb[k], sizeof(struct aiocb)); + iocb[k]->aio_nbytes = sizeof(buffer); + iocb[k]->aio_buf = buffer; + iocb[k]->aio_fildes = fd; + iocb[k]->aio_offset + = iocb[k]->aio_nbytes * k * (run + 1); + +#ifdef DEBUG + printf("hello iocb[k] %d\n", + iocb[k]->aio_offset); +#endif + iocb[k]->aio_lio_opcode = LIO_WRITE; + } + sig.sigev_notify_kqueue = kq; + sig.sigev_value.sival_ptr = lio[j]; + sig.sigev_notify = SIGEV_KEVENT; + time(&time1); + result = lio_listio(LIO_NOWAIT, lio[j], + MAX_IOCBS / LIO_MAX, &sig); + error = errno; + time(&time2); +#ifdef DEBUG + printf("Time %d %d %d result -> %d\n", + time1, time2, time2-time1, result); +#endif + if (result != 0) { + errno = error; + perror("list_listio"); + printf("FAIL: Result %d iteration %d\n",result, j); + exit(1); + } +#ifdef DEBUG + printf("write %d is at %p\n", j, lio[j]); +#endif + } + + for(i = 0; i < LIO_MAX; i++) { + for(j = LIO_MAX - 1; j >=0; j--) { + if (lio[j]) + break; + } + + for(;;) { + bzero(&ke, sizeof(ke)); + bzero(&kq_returned, sizeof(ke)); + ts.tv_sec = 0; + ts.tv_nsec = 1; +#ifdef DEBUG + printf("FOO lio %d -> %p\n", j, lio[j]); +#endif + EV_SET(&ke, (uintptr_t)lio[j], + EVFILT_LIO, EV_ONESHOT, 0, 0, iocb[j]); + result = kevent(kq, NULL, 0, + &kq_returned, 1, &ts); + error = errno; + if (result < 0) { + perror("kevent error: "); + } + kq_lio = kq_returned.udata; +#ifdef DEBUG + printf("kevent %d %d errno %d return.ident %p " + "return.data %p return.udata %p %p\n", + i, result, error, + kq_returned.ident, kq_returned.data, + kq_returned.udata, + lio[j]); +#endif + + if(kq_lio) + break; +#ifdef DEBUG + printf("Try again\n"); +#endif + } + +#ifdef DEBUG + printf("lio %p\n", lio); +#endif + + for (j = 0; j < LIO_MAX; j++) { + if (lio[j] == kq_lio) { + break; + } + } + if (j == LIO_MAX) { + printf("FAIL:\n"); + exit(1); + } + +#ifdef DEBUG + printf("Error Result for %d is %d\n", j, result); +#endif + if (result < 0) { + printf("FAIL: run %d, operation %d result %d \n", run, LIO_MAX - i -1, result); + failed = 1; + } else { + printf("PASS: run %d, operation %d result %d \n", run, LIO_MAX - i -1, result); + } + for(k = 0; k < MAX_IOCBS / LIO_MAX; k++){ + result = aio_return(kq_lio[k]); +#ifdef DEBUG + printf("Return Resulto for %d %d is %d\n", j, k, result); +#endif + if (result != sizeof(buffer)) { + printf("FAIL: run %d, operation %d sub-opt %d result %d (errno=%d) should be %zu\n", + run, LIO_MAX - i -1, k, result, errno, sizeof(buffer)); + } else { + printf("PASS: run %d, operation %d sub-opt %d result %d\n", + run, LIO_MAX - i -1, k, result); + } + } +#ifdef DEBUG + printf("\n"); +#endif + + for(k = 0; k < MAX_IOCBS / LIO_MAX; k++) { + free(lio[j][k]); + } + free(lio[j]); + lio[j] = NULL; + } + } +#ifdef DEBUG + printf("Done\n"); +#endif + + if (tmp_file) { + unlink(pathname); + } + + if (failed) { + printf("FAIL: Atleast one\n"); + exit(1); + } else { + printf("PASS: All\n"); + exit(0); + } +} |