b1012d8036
File and disk-backed I/O requests store counts of read/written disk blocks in each AIO job so that they can be charged to the thread that completes an AIO request via aio_return() or aio_waitcomplete(). This change extends AIO jobs to store counts of received/sent messages and updates socket backends to set these counts accordingly. Note that the socket backends are careful to only charge a single messages for each AIO request even though a single request on a blocking socket might invoke sosend or soreceive multiple times. This is to mimic the resource accounting of synchronous read/write. Adjust the UNIX socketpair AIO test to verify that the message resource usage counts update accordingly for aio_read and aio_write. Approved by: re (hrs) Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D6911
943 lines
22 KiB
C
943 lines
22 KiB
C
/*-
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* Copyright (c) 2004 Robert N. M. Watson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Regression test to do some very basic AIO exercising on several types of
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* file descriptors. Currently, the tests consist of initializing a fixed
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* size buffer with pseudo-random data, writing it to one fd using AIO, then
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* reading it from a second descriptor using AIO. For some targets, the same
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* fd is used for write and read (i.e., file, md device), but for others the
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* operation is performed on a peer (pty, socket, fifo, etc). A timeout is
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* initiated to detect undo blocking. This test does not attempt to exercise
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* error cases or more subtle asynchronous behavior, just make sure that the
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* basic operations work on some basic object types.
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*/
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#include <sys/param.h>
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#include <sys/module.h>
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#include <sys/resource.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/mdioctl.h>
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#include <aio.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <libutil.h>
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#include <limits.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <termios.h>
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#include <unistd.h>
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#include <atf-c.h>
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#include "freebsd_test_suite/macros.h"
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#include "local.h"
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#define PATH_TEMPLATE "aio.XXXXXXXXXX"
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/*
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* GLOBAL_MAX sets the largest usable buffer size to be read and written, as
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* it sizes ac_buffer in the aio_context structure. It is also the default
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* size for file I/O. For other types, we use smaller blocks or we risk
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* blocking (and we run in a single process/thread so that would be bad).
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*/
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#define GLOBAL_MAX 16384
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#define BUFFER_MAX GLOBAL_MAX
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struct aio_context {
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int ac_read_fd, ac_write_fd;
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long ac_seed;
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char ac_buffer[GLOBAL_MAX];
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int ac_buflen;
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int ac_seconds;
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void (*ac_cleanup)(void *arg);
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void *ac_cleanup_arg;
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};
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static int aio_timedout;
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/*
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* Each test run specifies a timeout in seconds. Use the somewhat obsoleted
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* signal(3) and alarm(3) APIs to set this up.
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*/
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static void
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aio_timeout_signal(int sig __unused)
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{
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aio_timedout = 1;
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}
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static void
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aio_timeout_start(int seconds)
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{
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aio_timedout = 0;
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ATF_REQUIRE_MSG(signal(SIGALRM, aio_timeout_signal) != SIG_ERR,
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"failed to set SIGALRM handler: %s", strerror(errno));
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alarm(seconds);
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}
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static void
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aio_timeout_stop(void)
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{
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ATF_REQUIRE_MSG(signal(SIGALRM, NULL) != SIG_ERR,
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"failed to reset SIGALRM handler to default: %s", strerror(errno));
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alarm(0);
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}
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/*
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* Fill a buffer given a seed that can be fed into srandom() to initialize
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* the PRNG in a repeatable manner.
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*/
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static void
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aio_fill_buffer(char *buffer, int len, long seed)
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{
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char ch;
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int i;
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srandom(seed);
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for (i = 0; i < len; i++) {
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ch = random() & 0xff;
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buffer[i] = ch;
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}
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}
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/*
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* Test that a buffer matches a given seed. See aio_fill_buffer(). Return
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* (1) on a match, (0) on a mismatch.
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*/
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static int
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aio_test_buffer(char *buffer, int len, long seed)
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{
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char ch;
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int i;
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srandom(seed);
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for (i = 0; i < len; i++) {
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ch = random() & 0xff;
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if (buffer[i] != ch)
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return (0);
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}
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return (1);
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}
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/*
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* Initialize a testing context given the file descriptors provided by the
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* test setup.
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*/
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static void
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aio_context_init(struct aio_context *ac, int read_fd,
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int write_fd, int buflen, int seconds, void (*cleanup)(void *),
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void *cleanup_arg)
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{
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ATF_REQUIRE_MSG(buflen <= BUFFER_MAX,
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"aio_context_init: buffer too large (%d > %d)",
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buflen, BUFFER_MAX);
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bzero(ac, sizeof(*ac));
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ac->ac_read_fd = read_fd;
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ac->ac_write_fd = write_fd;
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ac->ac_buflen = buflen;
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srandomdev();
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ac->ac_seed = random();
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aio_fill_buffer(ac->ac_buffer, buflen, ac->ac_seed);
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ATF_REQUIRE_MSG(aio_test_buffer(ac->ac_buffer, buflen,
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ac->ac_seed) != 0, "aio_test_buffer: internal error");
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ac->ac_seconds = seconds;
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ac->ac_cleanup = cleanup;
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ac->ac_cleanup_arg = cleanup_arg;
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}
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/*
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* Each tester can register a callback to clean up in the event the test
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* fails. Preserve the value of errno so that subsequent calls to errx()
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* work properly.
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*/
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static void
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aio_cleanup(struct aio_context *ac)
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{
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int error;
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if (ac->ac_cleanup == NULL)
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return;
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error = errno;
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(ac->ac_cleanup)(ac->ac_cleanup_arg);
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errno = error;
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}
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/*
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* Perform a simple write test of our initialized data buffer to the provided
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* file descriptor.
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*/
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static void
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aio_write_test(struct aio_context *ac)
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{
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struct aiocb aio, *aiop;
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ssize_t len;
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ATF_REQUIRE_KERNEL_MODULE("aio");
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bzero(&aio, sizeof(aio));
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aio.aio_buf = ac->ac_buffer;
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aio.aio_nbytes = ac->ac_buflen;
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aio.aio_fildes = ac->ac_write_fd;
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aio.aio_offset = 0;
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aio_timeout_start(ac->ac_seconds);
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if (aio_write(&aio) < 0) {
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if (errno == EINTR) {
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if (aio_timedout) {
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aio_cleanup(ac);
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atf_tc_fail("aio_write timed out");
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}
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}
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aio_cleanup(ac);
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atf_tc_fail("aio_write failed: %s", strerror(errno));
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}
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len = aio_waitcomplete(&aiop, NULL);
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if (len < 0) {
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if (errno == EINTR) {
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if (aio_timedout) {
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aio_cleanup(ac);
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atf_tc_fail("aio_waitcomplete timed out");
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}
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}
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aio_cleanup(ac);
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atf_tc_fail("aio_waitcomplete failed: %s", strerror(errno));
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}
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aio_timeout_stop();
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if (len != ac->ac_buflen) {
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aio_cleanup(ac);
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atf_tc_fail("aio_waitcomplete short write (%jd)",
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(intmax_t)len);
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}
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}
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/*
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* Perform a simple read test of our initialized data buffer from the
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* provided file descriptor.
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*/
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static void
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aio_read_test(struct aio_context *ac)
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{
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struct aiocb aio, *aiop;
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ssize_t len;
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ATF_REQUIRE_KERNEL_MODULE("aio");
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bzero(ac->ac_buffer, ac->ac_buflen);
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bzero(&aio, sizeof(aio));
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aio.aio_buf = ac->ac_buffer;
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aio.aio_nbytes = ac->ac_buflen;
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aio.aio_fildes = ac->ac_read_fd;
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aio.aio_offset = 0;
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aio_timeout_start(ac->ac_seconds);
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if (aio_read(&aio) < 0) {
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if (errno == EINTR) {
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if (aio_timedout) {
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aio_cleanup(ac);
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atf_tc_fail("aio_write timed out");
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}
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}
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aio_cleanup(ac);
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atf_tc_fail("aio_read failed: %s", strerror(errno));
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}
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len = aio_waitcomplete(&aiop, NULL);
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if (len < 0) {
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if (errno == EINTR) {
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if (aio_timedout) {
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aio_cleanup(ac);
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atf_tc_fail("aio_waitcomplete timed out");
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}
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}
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aio_cleanup(ac);
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atf_tc_fail("aio_waitcomplete failed: %s", strerror(errno));
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}
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aio_timeout_stop();
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if (len != ac->ac_buflen) {
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aio_cleanup(ac);
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atf_tc_fail("aio_waitcomplete short read (%jd)",
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(intmax_t)len);
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}
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if (aio_test_buffer(ac->ac_buffer, ac->ac_buflen, ac->ac_seed) == 0) {
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aio_cleanup(ac);
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atf_tc_fail("buffer mismatched");
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}
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}
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/*
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* Series of type-specific tests for AIO. For now, we just make sure we can
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* issue a write and then a read to each type. We assume that once a write
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* is issued, a read can follow.
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*/
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/*
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* Test with a classic file. Assumes we can create a moderate size temporary
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* file.
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*/
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struct aio_file_arg {
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int afa_fd;
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char *afa_pathname;
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};
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static void
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aio_file_cleanup(void *arg)
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{
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struct aio_file_arg *afa;
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afa = arg;
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close(afa->afa_fd);
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unlink(afa->afa_pathname);
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}
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#define FILE_LEN GLOBAL_MAX
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#define FILE_TIMEOUT 30
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ATF_TC_WITHOUT_HEAD(aio_file_test);
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ATF_TC_BODY(aio_file_test, tc)
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{
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char pathname[PATH_MAX];
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struct aio_file_arg arg;
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struct aio_context ac;
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int fd;
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ATF_REQUIRE_KERNEL_MODULE("aio");
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ATF_REQUIRE_UNSAFE_AIO();
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strcpy(pathname, PATH_TEMPLATE);
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fd = mkstemp(pathname);
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ATF_REQUIRE_MSG(fd != -1, "mkstemp failed: %s", strerror(errno));
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arg.afa_fd = fd;
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arg.afa_pathname = pathname;
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aio_context_init(&ac, fd, fd, FILE_LEN,
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FILE_TIMEOUT, aio_file_cleanup, &arg);
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aio_write_test(&ac);
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aio_read_test(&ac);
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aio_file_cleanup(&arg);
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}
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struct aio_fifo_arg {
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int afa_read_fd;
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int afa_write_fd;
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char *afa_pathname;
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};
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static void
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aio_fifo_cleanup(void *arg)
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{
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struct aio_fifo_arg *afa;
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afa = arg;
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if (afa->afa_read_fd != -1)
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close(afa->afa_read_fd);
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if (afa->afa_write_fd != -1)
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close(afa->afa_write_fd);
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unlink(afa->afa_pathname);
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}
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#define FIFO_LEN 256
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#define FIFO_TIMEOUT 30
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ATF_TC_WITHOUT_HEAD(aio_fifo_test);
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ATF_TC_BODY(aio_fifo_test, tc)
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{
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int error, read_fd = -1, write_fd = -1;
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struct aio_fifo_arg arg;
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char pathname[PATH_MAX];
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struct aio_context ac;
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ATF_REQUIRE_KERNEL_MODULE("aio");
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ATF_REQUIRE_UNSAFE_AIO();
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|
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/*
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* In theory, mkstemp() can return a name that is then collided with.
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* Because this is a regression test, we treat that as a test failure
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* rather than retrying.
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*/
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strcpy(pathname, PATH_TEMPLATE);
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ATF_REQUIRE_MSG(mkstemp(pathname) != -1,
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"mkstemp failed: %s", strerror(errno));
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ATF_REQUIRE_MSG(unlink(pathname) == 0,
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"unlink failed: %s", strerror(errno));
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ATF_REQUIRE_MSG(mkfifo(pathname, 0600) != -1,
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"mkfifo failed: %s", strerror(errno));
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arg.afa_pathname = pathname;
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arg.afa_read_fd = -1;
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arg.afa_write_fd = -1;
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read_fd = open(pathname, O_RDONLY | O_NONBLOCK);
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if (read_fd == -1) {
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error = errno;
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aio_fifo_cleanup(&arg);
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errno = error;
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atf_tc_fail("read_fd open failed: %s",
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strerror(errno));
|
|
}
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arg.afa_read_fd = read_fd;
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|
|
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write_fd = open(pathname, O_WRONLY);
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if (write_fd == -1) {
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error = errno;
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aio_fifo_cleanup(&arg);
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errno = error;
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atf_tc_fail("write_fd open failed: %s",
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strerror(errno));
|
|
}
|
|
arg.afa_write_fd = write_fd;
|
|
|
|
aio_context_init(&ac, read_fd, write_fd, FIFO_LEN,
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FIFO_TIMEOUT, aio_fifo_cleanup, &arg);
|
|
aio_write_test(&ac);
|
|
aio_read_test(&ac);
|
|
|
|
aio_fifo_cleanup(&arg);
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|
}
|
|
|
|
struct aio_unix_socketpair_arg {
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int asa_sockets[2];
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|
};
|
|
|
|
static void
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|
aio_unix_socketpair_cleanup(void *arg)
|
|
{
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|
struct aio_unix_socketpair_arg *asa;
|
|
|
|
asa = arg;
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close(asa->asa_sockets[0]);
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|
close(asa->asa_sockets[1]);
|
|
}
|
|
|
|
#define UNIX_SOCKETPAIR_LEN 256
|
|
#define UNIX_SOCKETPAIR_TIMEOUT 30
|
|
ATF_TC_WITHOUT_HEAD(aio_unix_socketpair_test);
|
|
ATF_TC_BODY(aio_unix_socketpair_test, tc)
|
|
{
|
|
struct aio_unix_socketpair_arg arg;
|
|
struct aio_context ac;
|
|
struct rusage ru_before, ru_after;
|
|
int sockets[2];
|
|
|
|
ATF_REQUIRE_KERNEL_MODULE("aio");
|
|
|
|
ATF_REQUIRE_MSG(socketpair(PF_UNIX, SOCK_STREAM, 0, sockets) != -1,
|
|
"socketpair failed: %s", strerror(errno));
|
|
|
|
arg.asa_sockets[0] = sockets[0];
|
|
arg.asa_sockets[1] = sockets[1];
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|
aio_context_init(&ac, sockets[0],
|
|
sockets[1], UNIX_SOCKETPAIR_LEN, UNIX_SOCKETPAIR_TIMEOUT,
|
|
aio_unix_socketpair_cleanup, &arg);
|
|
ATF_REQUIRE_MSG(getrusage(RUSAGE_SELF, &ru_before) != -1,
|
|
"getrusage failed: %s", strerror(errno));
|
|
aio_write_test(&ac);
|
|
ATF_REQUIRE_MSG(getrusage(RUSAGE_SELF, &ru_after) != -1,
|
|
"getrusage failed: %s", strerror(errno));
|
|
ATF_REQUIRE(ru_after.ru_msgsnd == ru_before.ru_msgsnd + 1);
|
|
ru_before = ru_after;
|
|
aio_read_test(&ac);
|
|
ATF_REQUIRE_MSG(getrusage(RUSAGE_SELF, &ru_after) != -1,
|
|
"getrusage failed: %s", strerror(errno));
|
|
ATF_REQUIRE(ru_after.ru_msgrcv == ru_before.ru_msgrcv + 1);
|
|
|
|
aio_unix_socketpair_cleanup(&arg);
|
|
}
|
|
|
|
struct aio_pty_arg {
|
|
int apa_read_fd;
|
|
int apa_write_fd;
|
|
};
|
|
|
|
static void
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|
aio_pty_cleanup(void *arg)
|
|
{
|
|
struct aio_pty_arg *apa;
|
|
|
|
apa = arg;
|
|
close(apa->apa_read_fd);
|
|
close(apa->apa_write_fd);
|
|
};
|
|
|
|
#define PTY_LEN 256
|
|
#define PTY_TIMEOUT 30
|
|
ATF_TC_WITHOUT_HEAD(aio_pty_test);
|
|
ATF_TC_BODY(aio_pty_test, tc)
|
|
{
|
|
struct aio_pty_arg arg;
|
|
struct aio_context ac;
|
|
int read_fd, write_fd;
|
|
struct termios ts;
|
|
int error;
|
|
|
|
ATF_REQUIRE_KERNEL_MODULE("aio");
|
|
ATF_REQUIRE_UNSAFE_AIO();
|
|
|
|
ATF_REQUIRE_MSG(openpty(&read_fd, &write_fd, NULL, NULL, NULL) == 0,
|
|
"openpty failed: %s", strerror(errno));
|
|
|
|
arg.apa_read_fd = read_fd;
|
|
arg.apa_write_fd = write_fd;
|
|
|
|
if (tcgetattr(write_fd, &ts) < 0) {
|
|
error = errno;
|
|
aio_pty_cleanup(&arg);
|
|
errno = error;
|
|
atf_tc_fail("tcgetattr failed: %s", strerror(errno));
|
|
}
|
|
cfmakeraw(&ts);
|
|
if (tcsetattr(write_fd, TCSANOW, &ts) < 0) {
|
|
error = errno;
|
|
aio_pty_cleanup(&arg);
|
|
errno = error;
|
|
atf_tc_fail("tcsetattr failed: %s", strerror(errno));
|
|
}
|
|
aio_context_init(&ac, read_fd, write_fd, PTY_LEN,
|
|
PTY_TIMEOUT, aio_pty_cleanup, &arg);
|
|
|
|
aio_write_test(&ac);
|
|
aio_read_test(&ac);
|
|
|
|
aio_pty_cleanup(&arg);
|
|
}
|
|
|
|
static void
|
|
aio_pipe_cleanup(void *arg)
|
|
{
|
|
int *pipes = arg;
|
|
|
|
close(pipes[0]);
|
|
close(pipes[1]);
|
|
}
|
|
|
|
#define PIPE_LEN 256
|
|
#define PIPE_TIMEOUT 30
|
|
ATF_TC_WITHOUT_HEAD(aio_pipe_test);
|
|
ATF_TC_BODY(aio_pipe_test, tc)
|
|
{
|
|
struct aio_context ac;
|
|
int pipes[2];
|
|
|
|
ATF_REQUIRE_KERNEL_MODULE("aio");
|
|
ATF_REQUIRE_UNSAFE_AIO();
|
|
|
|
ATF_REQUIRE_MSG(pipe(pipes) != -1,
|
|
"pipe failed: %s", strerror(errno));
|
|
|
|
aio_context_init(&ac, pipes[0], pipes[1], PIPE_LEN,
|
|
PIPE_TIMEOUT, aio_pipe_cleanup, pipes);
|
|
aio_write_test(&ac);
|
|
aio_read_test(&ac);
|
|
|
|
aio_pipe_cleanup(pipes);
|
|
}
|
|
|
|
struct aio_md_arg {
|
|
int ama_mdctl_fd;
|
|
int ama_unit;
|
|
int ama_fd;
|
|
};
|
|
|
|
static void
|
|
aio_md_cleanup(void *arg)
|
|
{
|
|
struct aio_md_arg *ama;
|
|
struct md_ioctl mdio;
|
|
int error;
|
|
|
|
ama = arg;
|
|
|
|
if (ama->ama_fd != -1)
|
|
close(ama->ama_fd);
|
|
|
|
if (ama->ama_unit != -1) {
|
|
bzero(&mdio, sizeof(mdio));
|
|
mdio.md_version = MDIOVERSION;
|
|
mdio.md_unit = ama->ama_unit;
|
|
if (ioctl(ama->ama_mdctl_fd, MDIOCDETACH, &mdio) == -1) {
|
|
error = errno;
|
|
close(ama->ama_mdctl_fd);
|
|
errno = error;
|
|
atf_tc_fail("ioctl MDIOCDETACH failed: %s",
|
|
strerror(errno));
|
|
}
|
|
}
|
|
|
|
close(ama->ama_mdctl_fd);
|
|
}
|
|
|
|
#define MD_LEN GLOBAL_MAX
|
|
#define MD_TIMEOUT 30
|
|
ATF_TC(aio_md_test);
|
|
ATF_TC_HEAD(aio_md_test, tc)
|
|
{
|
|
|
|
atf_tc_set_md_var(tc, "require.user", "root");
|
|
}
|
|
ATF_TC_BODY(aio_md_test, tc)
|
|
{
|
|
int error, fd, mdctl_fd, unit;
|
|
char pathname[PATH_MAX];
|
|
struct aio_md_arg arg;
|
|
struct aio_context ac;
|
|
struct md_ioctl mdio;
|
|
|
|
ATF_REQUIRE_KERNEL_MODULE("aio");
|
|
|
|
mdctl_fd = open("/dev/" MDCTL_NAME, O_RDWR, 0);
|
|
ATF_REQUIRE_MSG(mdctl_fd != -1,
|
|
"opening /dev/%s failed: %s", MDCTL_NAME, strerror(errno));
|
|
|
|
bzero(&mdio, sizeof(mdio));
|
|
mdio.md_version = MDIOVERSION;
|
|
mdio.md_type = MD_MALLOC;
|
|
mdio.md_options = MD_AUTOUNIT | MD_COMPRESS;
|
|
mdio.md_mediasize = GLOBAL_MAX;
|
|
mdio.md_sectorsize = 512;
|
|
|
|
arg.ama_mdctl_fd = mdctl_fd;
|
|
arg.ama_unit = -1;
|
|
arg.ama_fd = -1;
|
|
if (ioctl(mdctl_fd, MDIOCATTACH, &mdio) < 0) {
|
|
error = errno;
|
|
aio_md_cleanup(&arg);
|
|
errno = error;
|
|
atf_tc_fail("ioctl MDIOCATTACH failed: %s", strerror(errno));
|
|
}
|
|
|
|
arg.ama_unit = unit = mdio.md_unit;
|
|
snprintf(pathname, PATH_MAX, "/dev/md%d", unit);
|
|
fd = open(pathname, O_RDWR);
|
|
ATF_REQUIRE_MSG(fd != -1,
|
|
"opening %s failed: %s", pathname, strerror(errno));
|
|
arg.ama_fd = fd;
|
|
|
|
aio_context_init(&ac, fd, fd, MD_LEN, MD_TIMEOUT,
|
|
aio_md_cleanup, &arg);
|
|
aio_write_test(&ac);
|
|
aio_read_test(&ac);
|
|
|
|
aio_md_cleanup(&arg);
|
|
}
|
|
|
|
ATF_TC_WITHOUT_HEAD(aio_large_read_test);
|
|
ATF_TC_BODY(aio_large_read_test, tc)
|
|
{
|
|
char pathname[PATH_MAX];
|
|
struct aiocb cb, *cbp;
|
|
ssize_t nread;
|
|
size_t len;
|
|
int fd;
|
|
#ifdef __LP64__
|
|
int clamped;
|
|
#endif
|
|
|
|
ATF_REQUIRE_KERNEL_MODULE("aio");
|
|
ATF_REQUIRE_UNSAFE_AIO();
|
|
|
|
#ifdef __LP64__
|
|
len = sizeof(clamped);
|
|
if (sysctlbyname("debug.iosize_max_clamp", &clamped, &len, NULL, 0) ==
|
|
-1)
|
|
atf_libc_error(errno, "Failed to read debug.iosize_max_clamp");
|
|
#endif
|
|
|
|
/* Determine the maximum supported read(2) size. */
|
|
len = SSIZE_MAX;
|
|
#ifdef __LP64__
|
|
if (clamped)
|
|
len = INT_MAX;
|
|
#endif
|
|
|
|
strcpy(pathname, PATH_TEMPLATE);
|
|
fd = mkstemp(pathname);
|
|
ATF_REQUIRE_MSG(fd != -1, "mkstemp failed: %s", strerror(errno));
|
|
|
|
unlink(pathname);
|
|
|
|
memset(&cb, 0, sizeof(cb));
|
|
cb.aio_nbytes = len;
|
|
cb.aio_fildes = fd;
|
|
cb.aio_buf = NULL;
|
|
if (aio_read(&cb) == -1)
|
|
atf_tc_fail("aio_read() of maximum read size failed: %s",
|
|
strerror(errno));
|
|
|
|
nread = aio_waitcomplete(&cbp, NULL);
|
|
if (nread == -1)
|
|
atf_tc_fail("aio_waitcomplete() failed: %s", strerror(errno));
|
|
if (nread != 0)
|
|
atf_tc_fail("aio_read() from empty file returned data: %zd",
|
|
nread);
|
|
|
|
memset(&cb, 0, sizeof(cb));
|
|
cb.aio_nbytes = len + 1;
|
|
cb.aio_fildes = fd;
|
|
cb.aio_buf = NULL;
|
|
if (aio_read(&cb) == -1) {
|
|
if (errno == EINVAL)
|
|
goto finished;
|
|
atf_tc_fail("aio_read() of too large read size failed: %s",
|
|
strerror(errno));
|
|
}
|
|
|
|
nread = aio_waitcomplete(&cbp, NULL);
|
|
if (nread == -1) {
|
|
if (errno == EINVAL)
|
|
goto finished;
|
|
atf_tc_fail("aio_waitcomplete() failed: %s", strerror(errno));
|
|
}
|
|
atf_tc_fail("aio_read() of too large read size returned: %zd", nread);
|
|
|
|
finished:
|
|
close(fd);
|
|
}
|
|
|
|
/*
|
|
* This tests for a bug where arriving socket data can wakeup multiple
|
|
* AIO read requests resulting in an uncancellable request.
|
|
*/
|
|
ATF_TC_WITHOUT_HEAD(aio_socket_two_reads);
|
|
ATF_TC_BODY(aio_socket_two_reads, tc)
|
|
{
|
|
struct ioreq {
|
|
struct aiocb iocb;
|
|
char buffer[1024];
|
|
} ioreq[2];
|
|
struct aiocb *iocb;
|
|
unsigned i;
|
|
int s[2];
|
|
char c;
|
|
|
|
ATF_REQUIRE_KERNEL_MODULE("aio");
|
|
#if __FreeBSD_version < 1100101
|
|
aft_tc_skip("kernel version %d is too old (%d required)",
|
|
__FreeBSD_version, 1100101);
|
|
#endif
|
|
|
|
ATF_REQUIRE(socketpair(PF_UNIX, SOCK_STREAM, 0, s) != -1);
|
|
|
|
/* Queue two read requests. */
|
|
memset(&ioreq, 0, sizeof(ioreq));
|
|
for (i = 0; i < nitems(ioreq); i++) {
|
|
ioreq[i].iocb.aio_nbytes = sizeof(ioreq[i].buffer);
|
|
ioreq[i].iocb.aio_fildes = s[0];
|
|
ioreq[i].iocb.aio_buf = ioreq[i].buffer;
|
|
ATF_REQUIRE(aio_read(&ioreq[i].iocb) == 0);
|
|
}
|
|
|
|
/* Send a single byte. This should complete one request. */
|
|
c = 0xc3;
|
|
ATF_REQUIRE(write(s[1], &c, sizeof(c)) == 1);
|
|
|
|
ATF_REQUIRE(aio_waitcomplete(&iocb, NULL) == 1);
|
|
|
|
/* Determine which request completed and verify the data was read. */
|
|
if (iocb == &ioreq[0].iocb)
|
|
i = 0;
|
|
else
|
|
i = 1;
|
|
ATF_REQUIRE(ioreq[i].buffer[0] == c);
|
|
|
|
i ^= 1;
|
|
|
|
/*
|
|
* Try to cancel the other request. On broken systems this
|
|
* will fail and the process will hang on exit.
|
|
*/
|
|
ATF_REQUIRE(aio_error(&ioreq[i].iocb) == EINPROGRESS);
|
|
ATF_REQUIRE(aio_cancel(s[0], &ioreq[i].iocb) == AIO_CANCELED);
|
|
|
|
close(s[1]);
|
|
close(s[0]);
|
|
}
|
|
|
|
/*
|
|
* This test ensures that aio_write() on a blocking socket of a "large"
|
|
* buffer does not return a short completion.
|
|
*/
|
|
ATF_TC_WITHOUT_HEAD(aio_socket_blocking_short_write);
|
|
ATF_TC_BODY(aio_socket_blocking_short_write, tc)
|
|
{
|
|
struct aiocb iocb, *iocbp;
|
|
char *buffer[2];
|
|
ssize_t done;
|
|
int buffer_size, sb_size;
|
|
socklen_t len;
|
|
int s[2];
|
|
|
|
ATF_REQUIRE_KERNEL_MODULE("aio");
|
|
|
|
ATF_REQUIRE(socketpair(PF_UNIX, SOCK_STREAM, 0, s) != -1);
|
|
|
|
len = sizeof(sb_size);
|
|
ATF_REQUIRE(getsockopt(s[0], SOL_SOCKET, SO_RCVBUF, &sb_size, &len) !=
|
|
-1);
|
|
ATF_REQUIRE(len == sizeof(sb_size));
|
|
buffer_size = sb_size;
|
|
|
|
ATF_REQUIRE(getsockopt(s[1], SOL_SOCKET, SO_SNDBUF, &sb_size, &len) !=
|
|
-1);
|
|
ATF_REQUIRE(len == sizeof(sb_size));
|
|
if (sb_size > buffer_size)
|
|
buffer_size = sb_size;
|
|
|
|
/*
|
|
* Use twice the size of the MAX(receive buffer, send buffer)
|
|
* to ensure that the write is split up into multiple writes
|
|
* internally.
|
|
*/
|
|
buffer_size *= 2;
|
|
|
|
buffer[0] = malloc(buffer_size);
|
|
ATF_REQUIRE(buffer[0] != NULL);
|
|
buffer[1] = malloc(buffer_size);
|
|
ATF_REQUIRE(buffer[1] != NULL);
|
|
|
|
srandomdev();
|
|
aio_fill_buffer(buffer[1], buffer_size, random());
|
|
|
|
memset(&iocb, 0, sizeof(iocb));
|
|
iocb.aio_fildes = s[1];
|
|
iocb.aio_buf = buffer[1];
|
|
iocb.aio_nbytes = buffer_size;
|
|
ATF_REQUIRE(aio_write(&iocb) == 0);
|
|
|
|
done = recv(s[0], buffer[0], buffer_size, MSG_WAITALL);
|
|
ATF_REQUIRE(done == buffer_size);
|
|
|
|
done = aio_waitcomplete(&iocbp, NULL);
|
|
ATF_REQUIRE(iocbp == &iocb);
|
|
ATF_REQUIRE(done == buffer_size);
|
|
|
|
ATF_REQUIRE(memcmp(buffer[0], buffer[1], buffer_size) == 0);
|
|
|
|
close(s[1]);
|
|
close(s[0]);
|
|
}
|
|
|
|
/*
|
|
* This test verifies that cancelling a partially completed socket write
|
|
* returns a short write rather than ECANCELED.
|
|
*/
|
|
ATF_TC_WITHOUT_HEAD(aio_socket_short_write_cancel);
|
|
ATF_TC_BODY(aio_socket_short_write_cancel, tc)
|
|
{
|
|
struct aiocb iocb, *iocbp;
|
|
char *buffer[2];
|
|
ssize_t done;
|
|
int buffer_size, sb_size;
|
|
socklen_t len;
|
|
int s[2];
|
|
|
|
ATF_REQUIRE_KERNEL_MODULE("aio");
|
|
|
|
ATF_REQUIRE(socketpair(PF_UNIX, SOCK_STREAM, 0, s) != -1);
|
|
|
|
len = sizeof(sb_size);
|
|
ATF_REQUIRE(getsockopt(s[0], SOL_SOCKET, SO_RCVBUF, &sb_size, &len) !=
|
|
-1);
|
|
ATF_REQUIRE(len == sizeof(sb_size));
|
|
buffer_size = sb_size;
|
|
|
|
ATF_REQUIRE(getsockopt(s[1], SOL_SOCKET, SO_SNDBUF, &sb_size, &len) !=
|
|
-1);
|
|
ATF_REQUIRE(len == sizeof(sb_size));
|
|
if (sb_size > buffer_size)
|
|
buffer_size = sb_size;
|
|
|
|
/*
|
|
* Use three times the size of the MAX(receive buffer, send
|
|
* buffer) for the write to ensure that the write is split up
|
|
* into multiple writes internally. The recv() ensures that
|
|
* the write has partially completed, but a remaining size of
|
|
* two buffers should ensure that the write has not completed
|
|
* fully when it is cancelled.
|
|
*/
|
|
buffer[0] = malloc(buffer_size);
|
|
ATF_REQUIRE(buffer[0] != NULL);
|
|
buffer[1] = malloc(buffer_size * 3);
|
|
ATF_REQUIRE(buffer[1] != NULL);
|
|
|
|
srandomdev();
|
|
aio_fill_buffer(buffer[1], buffer_size * 3, random());
|
|
|
|
memset(&iocb, 0, sizeof(iocb));
|
|
iocb.aio_fildes = s[1];
|
|
iocb.aio_buf = buffer[1];
|
|
iocb.aio_nbytes = buffer_size * 3;
|
|
ATF_REQUIRE(aio_write(&iocb) == 0);
|
|
|
|
done = recv(s[0], buffer[0], buffer_size, MSG_WAITALL);
|
|
ATF_REQUIRE(done == buffer_size);
|
|
|
|
ATF_REQUIRE(aio_error(&iocb) == EINPROGRESS);
|
|
ATF_REQUIRE(aio_cancel(s[1], &iocb) == AIO_NOTCANCELED);
|
|
|
|
done = aio_waitcomplete(&iocbp, NULL);
|
|
ATF_REQUIRE(iocbp == &iocb);
|
|
ATF_REQUIRE(done >= buffer_size && done <= buffer_size * 2);
|
|
|
|
ATF_REQUIRE(memcmp(buffer[0], buffer[1], buffer_size) == 0);
|
|
|
|
close(s[1]);
|
|
close(s[0]);
|
|
}
|
|
|
|
ATF_TP_ADD_TCS(tp)
|
|
{
|
|
|
|
ATF_TP_ADD_TC(tp, aio_file_test);
|
|
ATF_TP_ADD_TC(tp, aio_fifo_test);
|
|
ATF_TP_ADD_TC(tp, aio_unix_socketpair_test);
|
|
ATF_TP_ADD_TC(tp, aio_pty_test);
|
|
ATF_TP_ADD_TC(tp, aio_pipe_test);
|
|
ATF_TP_ADD_TC(tp, aio_md_test);
|
|
ATF_TP_ADD_TC(tp, aio_large_read_test);
|
|
ATF_TP_ADD_TC(tp, aio_socket_two_reads);
|
|
ATF_TP_ADD_TC(tp, aio_socket_blocking_short_write);
|
|
ATF_TP_ADD_TC(tp, aio_socket_short_write_cancel);
|
|
|
|
return (atf_no_error());
|
|
}
|