/*
* Perform a simple write test of our initialized data buffer to the provided
* file descriptor.
*/
static void
aio_write_test(struct aio_context *ac)
{
struct aiocb aio, *aiop;
ssize_t len;
int error;
bzero(&aio, sizeof(aio));
aio.aio_buf = ac->ac_buffer;
aio.aio_nbytes = ac->ac_buflen;
aio.aio_fildes = ac->ac_write_fd;
aio.aio_offset = 0;
aio_timeout_start(ac->ac_test, "aio_write_test", ac->ac_seconds);
if (aio_write(&aio) < 0) {
if (errno == EINTR) {
if (aio_notpresent)
errno = EOPNOTSUPP;
if (aio_timedout) {
aio_cleanup(ac);
errx(-1, "FAIL: %s: aio_write_test: "
"aio_write: timed out", ac->ac_test);
}
}
aio_cleanup(ac);
errx(-1, "FAIL: %s: aio_write_test: aio_write: %s",
ac->ac_test, strerror(errno));
}
len = aio_waitcomplete(&aiop, NULL);
if (len < 0) {
if (errno == EINTR) {
if (aio_notpresent)
errno = EOPNOTSUPP;
if (aio_timedout) {
aio_cleanup(ac);
errx(-1, "FAIL: %s: aio_write_test: "
"aio_waitcomplete: timed out",
ac->ac_test);
}
}
aio_cleanup(ac);
errx(-1, "FAIL: %s: aio_write_test: aio_waitcomplete: %s",
ac->ac_test, strerror(errno));
}
aio_timeout_stop(ac->ac_test, "aio_write_test");
if (len != ac->ac_buflen) {
aio_cleanup(ac);
errx(-1, "FAIL: %s: aio_write_test: aio_waitcomplete: short "
"write (%d)", ac->ac_test, len);
}
}
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]);
}
/*
* Perform a simple read test of our initialized data buffer from the
* provided file descriptor.
*/
static void
aio_read_test(struct aio_context *ac)
{
struct aiocb aio, *aiop;
ssize_t len;
ATF_REQUIRE_KERNEL_MODULE("aio");
bzero(ac->ac_buffer, ac->ac_buflen);
bzero(&aio, sizeof(aio));
aio.aio_buf = ac->ac_buffer;
aio.aio_nbytes = ac->ac_buflen;
aio.aio_fildes = ac->ac_read_fd;
aio.aio_offset = 0;
aio_timeout_start(ac->ac_seconds);
if (aio_read(&aio) < 0) {
if (errno == EINTR) {
if (aio_timedout) {
aio_cleanup(ac);
atf_tc_fail("aio_write timed out");
}
}
aio_cleanup(ac);
atf_tc_fail("aio_read failed: %s", strerror(errno));
}
len = aio_waitcomplete(&aiop, NULL);
if (len < 0) {
if (errno == EINTR) {
if (aio_timedout) {
aio_cleanup(ac);
atf_tc_fail("aio_waitcomplete timed out");
}
}
aio_cleanup(ac);
atf_tc_fail("aio_waitcomplete failed: %s", strerror(errno));
}
aio_timeout_stop();
if (len != ac->ac_buflen) {
aio_cleanup(ac);
atf_tc_fail("aio_waitcomplete short read (%jd)",
(intmax_t)len);
}
if (aio_test_buffer(ac->ac_buffer, ac->ac_buflen, ac->ac_seed) == 0) {
aio_cleanup(ac);
atf_tc_fail("buffer mismatched");
}
}
int
main(int argc, char *argv[])
{
int fd;
struct stat sb;
struct aiocb *aio;
char **abuf;
const char *fn;
int aio_len;
int io_size, nrun;
off_t file_size, offset;
struct aiocb *a;
int i, n;
struct timeval st, et, rt;
float f_rt;
iot_t iowhat;
if (argc < 6) {
printf("Usage: %s <file> <io size> <number of runs> <concurrency> <ro|wo|rw>\n", argv[0]);
exit(1);
}
fn = argv[1];
io_size = atoi(argv[2]);
nrun = atoi(argv[3]);
aio_len = atoi(argv[4]);
if (strcmp(argv[5], "ro") == 0) {
iowhat = IOT_READ;
} else if (strcmp(argv[5], "rw") == 0) {
iowhat = IOT_READ | IOT_WRITE;
} else if (strcmp(argv[5], "wo") == 0) {
iowhat = IOT_WRITE;
} else {
fprintf(stderr, "needs to be ro, rw, wo!\n");
exit(1);
}
/*
* Random returns values between 0 and (2^32)-1; only good for 4 gig.
* Lets instead treat random() as returning a block offset w/ block size
* being "io_size", so we can handle > 4 gig files.
*/
if (iowhat == IOT_READ)
fd = open(fn, O_RDONLY | O_DIRECT);
else if (iowhat == IOT_WRITE)
fd = open(fn, O_WRONLY | O_DIRECT);
else
fd = open(fn, O_RDWR | O_DIRECT);
if (fd < 0) {
perror("open");
exit(1);
}
if (fstat(fd, &sb) < 0) {
perror("fstat");
exit(1);
}
if (S_ISREG(sb.st_mode)) {
file_size = sb.st_size;
} else if (S_ISBLK(sb.st_mode) || S_ISCHR(sb.st_mode)) {
file_size = disk_getsize(fd);
} else {
perror("unknown file type\n");
exit(1);
}
printf("File: %s; File size %jd bytes\n", fn, (intmax_t)file_size);
aio = calloc(aio_len, sizeof(struct aiocb));
abuf = calloc(aio_len, sizeof(char *));
for (i = 0; i < aio_len; i++) {
abuf[i] = calloc(1, io_size * sizeof(char));
}
/* Fill with the initial contents */
gettimeofday(&st, NULL);
for (i = 0; i < aio_len; i++) {
offset = random() % (file_size / io_size);
offset *= io_size;
set_aio(aio + i, choose_aio(iowhat), fd, offset, io_size, abuf[i]);
}
for (i = 0; i < nrun; i++) {
aio_waitcomplete(&a, NULL);
n = a - aio;
assert(n < aio_len);
assert(n >= 0);
offset = random() % (file_size / io_size);
offset *= io_size;
set_aio(aio + n, choose_aio(iowhat), fd, offset, io_size, abuf[n]);
}
gettimeofday(&et, NULL);
timersub(&et, &st, &rt);
f_rt = ((float) (rt.tv_usec)) / 1000000.0;
f_rt += (float) (rt.tv_sec);
printf("Runtime: %.2f seconds, ", f_rt);
printf("Op rate: %.2f ops/sec, ", ((float) (nrun)) / f_rt);
printf("Avg transfer rate: %.2f bytes/sec\n", ((float) (nrun)) * ((float)io_size) / f_rt);
exit(0);
}
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);
}
