/*
|
*
|
* Copyright (c) International Business Machines Corp., 2002
|
* Copyright (c) Cyril Hrubis chrubis@suse.cz 2009
|
*
|
* This program is free software; you can redistribute it and/or modify
|
* it under the terms of the GNU General Public License as published by
|
* the Free Software Foundation; either version 2 of the License, or
|
* (at your option) any later version.
|
*
|
* This program is distributed in the hope that it will be useful,
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
|
* the GNU General Public License for more details.
|
*
|
* You should have received a copy of the GNU General Public License
|
* along with this program; if not, write to the Free Software
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
*/
|
|
/*
|
* NAME
|
* ftest08.c -- test single file io (tsfio.c by rbk) (ported from SPIE,
|
* section2/filesuite/ftest10.c, by Airong Zhang)
|
*
|
* this is the same as ftest5, except that it uses lseek64
|
*
|
* CALLS
|
* fsync, sync, lseek64, read, write
|
*
|
*
|
* ALGORITHM
|
* Several child processes doing random seeks, read/write
|
* operations on the same file.
|
*
|
*
|
* RESTRICTIONS
|
* Runs a long time with default args - can take others on input
|
* line. Use with "term mode".
|
*
|
*/
|
|
#define _XOPEN_SOURCE 500
|
#define _LARGEFILE64_SOURCE 1
|
#include <stdio.h>
|
#include <sys/types.h>
|
#include <sys/param.h>
|
#include <sys/wait.h>
|
#include <sys/file.h>
|
#include <fcntl.h>
|
#include <sys/stat.h>
|
#include <sys/uio.h>
|
#include <errno.h>
|
#include <signal.h>
|
#include <unistd.h>
|
#include <inttypes.h>
|
#include "test.h"
|
#include "safe_macros.h"
|
#include "libftest.h"
|
|
char *TCID = "ftest08";
|
int TST_TOTAL = 1;
|
|
#define PASSED 1
|
#define FAILED 0
|
|
#define MAXCHILD 25
|
#define K_1 1024
|
#define K_2 2048
|
#define K_4 4096
|
#define MAXIOVCNT 16
|
|
static void init(void);
|
static void runtest(void);
|
static void dotest(int, int, int);
|
static void domisc(int, int);
|
static void term(int sig);
|
static void cleanup(void);
|
|
static int csize; /* chunk size */
|
static int iterations; /* # total iterations */
|
static off64_t max_size; /* max file size */
|
static int misc_intvl; /* for doing misc things; 0 ==> no */
|
static int nchild; /* number of child processes */
|
static int parent_pid;
|
static int pidlist[MAXCHILD];
|
|
static char filename[MAXPATHLEN];
|
static int local_flag;
|
|
int main(int ac, char *av[])
|
{
|
int lc;
|
|
tst_parse_opts(ac, av, NULL, NULL);
|
|
for (lc = 0; TEST_LOOPING(lc); lc++) {
|
|
local_flag = PASSED;
|
init();
|
runtest();
|
|
if (local_flag == PASSED)
|
tst_resm(TPASS, "Test passed.");
|
else
|
tst_resm(TFAIL, "Test failed.");
|
}
|
|
cleanup();
|
tst_exit();
|
}
|
|
static void init(void)
|
{
|
int fd;
|
char wdbuf[MAXPATHLEN];
|
|
parent_pid = getpid();
|
tst_tmpdir();
|
|
/*
|
* Make a filename for the test.
|
*/
|
if (!filename[0])
|
sprintf(filename, "%s/ftest08.%d", getcwd(wdbuf, MAXPATHLEN),
|
getpid());
|
|
fd = SAFE_OPEN(NULL, filename, O_RDWR | O_CREAT | O_TRUNC, 0666);
|
|
close(fd);
|
|
/*
|
* Default values for run conditions.
|
*/
|
iterations = 10;
|
nchild = 5;
|
csize = K_2; /* should run with 1, 2, and 4 K sizes */
|
max_size = K_1 * K_1;
|
misc_intvl = 10;
|
|
if (sigset(SIGTERM, term) == SIG_ERR) {
|
tst_brkm(TBROK | TERRNO, NULL, "first sigset failed");
|
}
|
|
}
|
|
static void runtest(void)
|
{
|
int child, count, fd, i, nwait, status;
|
|
nwait = 0;
|
|
for (i = 0; i < nchild; i++) {
|
|
if ((child = fork()) == 0) {
|
fd = open(filename, O_RDWR);
|
if (fd < 0) {
|
tst_brkm(TFAIL,
|
NULL,
|
"\tTest[%d]: error %d openning %s.",
|
i,
|
errno, filename);
|
}
|
dotest(nchild, i, fd);
|
close(fd);
|
tst_exit();
|
}
|
|
if (child < 0) {
|
tst_brkm(TBROK | TERRNO, NULL, "fork failed");
|
} else {
|
pidlist[i] = child;
|
nwait++;
|
}
|
}
|
|
/*
|
* Wait for children to finish.
|
*/
|
count = 0;
|
while ((child = wait(&status)) != -1 || errno == EINTR) {
|
if (child > 0) {
|
//tst_resm(TINFO, "\tTest{%d} exited status = 0x%x", child, status);
|
if (status) {
|
tst_resm(TFAIL,
|
"\tExpected 0 exit status - failed.");
|
local_flag = FAILED;
|
}
|
++count;
|
}
|
}
|
|
/*
|
* Should have collected all children.
|
*/
|
if (count != nwait) {
|
tst_resm(TFAIL, "\tWrong # children waited on, count = %d",
|
count);
|
local_flag = FAILED;
|
}
|
|
unlink(filename);
|
sync();
|
}
|
|
/*
|
* dotest()
|
* Children execute this.
|
*
|
* Randomly read/mod/write chunks with known pattern and check.
|
* When fill sectors, iterate.
|
*/
|
#define NMISC 2
|
enum m_type { m_fsync, m_sync };
|
char *m_str[] = { "fsync", "sync" };
|
|
int misc_cnt[NMISC]; /* counts # of each kind of misc */
|
int misc_flag;
|
int nchunks;
|
|
#define CHUNK(i) ((((off64_t)i) * testers + me) * csize)
|
#define NEXTMISC ((rand() % misc_intvl) + 5)
|
|
static void dotest(int testers, int me, int fd)
|
{
|
char *bits;
|
char val, val0;
|
int count, collide, chunk, whenmisc, xfr, i;
|
|
/* Stuff for the readv call */
|
struct iovec r_iovec[MAXIOVCNT];
|
int r_ioveclen;
|
|
/* Stuff for the writev call */
|
struct iovec val0_iovec[MAXIOVCNT];
|
struct iovec val_iovec[MAXIOVCNT];
|
int w_ioveclen;
|
struct stat stat;
|
|
nchunks = max_size / (testers * csize);
|
whenmisc = 0;
|
|
if ((bits = malloc((nchunks + 7) / 8)) == NULL) {
|
tst_brkm(TBROK, NULL, "\tmalloc failed(bits)");
|
}
|
|
/* Allocate memory for the iovec buffers and init the iovec arrays */
|
r_ioveclen = w_ioveclen = csize / MAXIOVCNT;
|
|
/* Please note that the above statement implies that csize
|
* be evenly divisible by MAXIOVCNT.
|
*/
|
for (i = 0; i < MAXIOVCNT; i++) {
|
if ((r_iovec[i].iov_base = malloc(r_ioveclen)) == NULL) {
|
tst_brkm(TBROK, NULL, "\tmalloc failed(iov_base)");
|
}
|
r_iovec[i].iov_len = r_ioveclen;
|
|
/* Allocate unused memory areas between all the buffers to
|
* make things more diffult for the OS.
|
*/
|
if (malloc((i + 1) * 8) == NULL) {
|
tst_brkm(TBROK, NULL, "\tmalloc failed((i+1)*8)");
|
}
|
|
if ((val0_iovec[i].iov_base = malloc(w_ioveclen)) == NULL) {
|
tst_brkm(TBROK, NULL, "\tmalloc failed(val0_iovec)");
|
}
|
|
val0_iovec[i].iov_len = w_ioveclen;
|
|
if (malloc((i + 1) * 8) == NULL) {
|
tst_brkm(TBROK, NULL, "\tmalloc failed((i+1)*8)");
|
}
|
|
if ((val_iovec[i].iov_base = malloc(w_ioveclen)) == NULL) {
|
tst_brkm(TBROK, NULL, "\tmalloc failed(iov_base)");
|
}
|
val_iovec[i].iov_len = w_ioveclen;
|
|
if (malloc((i + 1) * 8) == NULL) {
|
tst_brkm(TBROK, NULL, "\tmalloc failed(((i+1)*8)");
|
}
|
}
|
|
/*
|
* No init sectors; file-sys makes 0 to start.
|
*/
|
val = (64 / testers) * me + 1;
|
val0 = 0;
|
|
/*
|
* For each iteration:
|
* zap bits array
|
* loop:
|
* pick random chunk, read it.
|
* if corresponding bit off {
|
* verify == 0. (sparse file)
|
* ++count;
|
* } else
|
* verify == val.
|
* write "val" on it.
|
* repeat until count = nchunks.
|
* ++val.
|
*/
|
srand(getpid());
|
|
if (misc_intvl)
|
whenmisc = NEXTMISC;
|
|
while (iterations-- > 0) {
|
for (i = 0; i < NMISC; i++)
|
misc_cnt[i] = 0;
|
memset(bits, 0, (nchunks + 7) / 8);
|
/* Have to fill the val0 and val iov buffers in a different manner
|
*/
|
for (i = 0; i < MAXIOVCNT; i++) {
|
memset(val0_iovec[i].iov_base, val0,
|
val0_iovec[i].iov_len);
|
memset(val_iovec[i].iov_base, val,
|
val_iovec[i].iov_len);
|
|
}
|
|
count = 0;
|
collide = 0;
|
|
while (count < nchunks) {
|
chunk = rand() % nchunks;
|
/*
|
* Read it.
|
*/
|
if (lseek64(fd, CHUNK(chunk), 0) < 0) {
|
tst_brkm(TFAIL,
|
NULL, "\tTest[%d]: lseek64(0) fail at %"
|
PRIx64 "x, errno = %d.", me,
|
CHUNK(chunk), errno);
|
}
|
if ((xfr = readv(fd, &r_iovec[0], MAXIOVCNT)) < 0) {
|
tst_brkm(TFAIL,
|
NULL, "\tTest[%d]: readv fail at %" PRIx64
|
"x, errno = %d.", me, CHUNK(chunk),
|
errno);
|
}
|
/*
|
* If chunk beyond EOF just write on it.
|
* Else if bit off, haven't seen it yet.
|
* Else, have. Verify values.
|
*/
|
if (xfr == 0) {
|
bits[chunk / 8] |= (1 << (chunk % 8));
|
} else if ((bits[chunk / 8] & (1 << (chunk % 8))) == 0) {
|
if (xfr != csize) {
|
tst_brkm(TFAIL,
|
NULL,
|
"\tTest[%d]: xfr=%d != %d, zero read.",
|
me, xfr, csize);
|
}
|
for (i = 0; i < MAXIOVCNT; i++) {
|
if (memcmp
|
(r_iovec[i].iov_base,
|
val0_iovec[i].iov_base,
|
r_iovec[i].iov_len)) {
|
tst_resm(TFAIL,
|
"\tTest[%d] bad verify @ 0x%"
|
PRIx64
|
" for val %d count %d xfr %d.",
|
me, CHUNK(chunk), val0,
|
count, xfr);
|
fstat(fd, &stat);
|
tst_resm(TINFO,
|
"\tStat: size=%llx, ino=%x",
|
stat.st_size, (unsigned)stat.st_ino);
|
ft_dumpiov(&r_iovec[i]);
|
ft_dumpbits(bits,
|
(nchunks + 7) / 8);
|
tst_exit();
|
}
|
}
|
bits[chunk / 8] |= (1 << (chunk % 8));
|
++count;
|
} else {
|
if (xfr != csize) {
|
tst_brkm(TFAIL,
|
NULL,
|
"\tTest[%d]: xfr=%d != %d, val read.",
|
me, xfr, csize);
|
}
|
++collide;
|
for (i = 0; i < MAXIOVCNT; i++) {
|
if (memcmp
|
(r_iovec[i].iov_base,
|
val_iovec[i].iov_base,
|
r_iovec[i].iov_len)) {
|
tst_resm(TFAIL,
|
"\tTest[%d] bad verify @ 0x%"
|
PRIx64
|
" for val %d count %d xfr %d.",
|
me, CHUNK(chunk), val,
|
count, xfr);
|
fstat(fd, &stat);
|
tst_resm(TINFO,
|
"\tStat: size=%llx, ino=%x",
|
stat.st_size, (unsigned)stat.st_ino);
|
ft_dumpiov(&r_iovec[i]);
|
ft_dumpbits(bits,
|
(nchunks + 7) / 8);
|
tst_exit();
|
}
|
}
|
}
|
/*
|
* Write it.
|
*/
|
if (lseek64(fd, -xfr, 1) < 0) {
|
tst_brkm(TFAIL,
|
NULL, "\tTest[%d]: lseek64(1) fail at %"
|
PRIx64 ", errno = %d.", me,
|
CHUNK(chunk), errno);
|
}
|
if ((xfr =
|
writev(fd, &val_iovec[0], MAXIOVCNT)) < csize) {
|
if (errno == ENOSPC) {
|
tst_resm(TFAIL,
|
"\tTest[%d]: no space, exiting.",
|
me);
|
fsync(fd);
|
tst_exit();
|
}
|
tst_brkm(TFAIL,
|
NULL, "\tTest[%d]: writev fail at %" PRIx64
|
"x xfr %d, errno = %d.", me,
|
CHUNK(chunk), xfr, errno);
|
}
|
/*
|
* If hit "misc" interval, do it.
|
*/
|
if (misc_intvl && --whenmisc <= 0) {
|
domisc(me, fd);
|
whenmisc = NEXTMISC;
|
}
|
if (count + collide > 2 * nchunks)
|
break;
|
}
|
|
/*
|
* End of iteration, maybe before doing all chunks.
|
*/
|
|
if (count < nchunks) {
|
//tst_resm(TINFO, "\tTest{%d} val %d stopping @ %d, collide = {%d}.",
|
// me, val, count, collide);
|
for (i = 0; i < nchunks; i++) {
|
if ((bits[i / 8] & (1 << (i % 8))) == 0) {
|
if (lseek64(fd, CHUNK(i), 0) <
|
(off64_t) 0) {
|
tst_brkm(TFAIL,
|
NULL, "\tTest[%d]: lseek64 fail at %"
|
PRIx64
|
"x, errno = %d.", me,
|
CHUNK(i), errno);
|
}
|
if (writev(fd, &val_iovec[0], MAXIOVCNT)
|
!= csize) {
|
tst_brkm(TFAIL,
|
NULL, "\tTest[%d]: writev fail at %"
|
PRIx64
|
"x, errno = %d.", me,
|
CHUNK(i), errno);
|
}
|
}
|
}
|
}
|
|
fsync(fd);
|
++misc_cnt[m_fsync];
|
//tst_resm(TINFO, "\tTest[%d] val %d done, count = %d, collide = %d.",
|
// me, val, count, collide);
|
//for (i = 0; i < NMISC; i++)
|
// tst_resm(TINFO, "\t\tTest[%d]: %d %s's.", me, misc_cnt[i], m_str[i]);
|
val0 = val++;
|
}
|
}
|
|
/*
|
* domisc()
|
* Inject misc syscalls into the thing.
|
*/
|
static void domisc(int me, int fd)
|
{
|
enum m_type type;
|
|
if (misc_flag) {
|
type = m_fsync;
|
misc_flag = 0;
|
} else {
|
type = m_sync;;
|
misc_flag = 1;
|
}
|
|
switch (type) {
|
case m_fsync:
|
if (fsync(fd) < 0) {
|
tst_brkm(TFAIL, NULL, "\tTest[%d]: fsync error %d.",
|
me,
|
errno);
|
}
|
break;
|
case m_sync:
|
sync();
|
break;
|
}
|
|
++misc_cnt[type];
|
}
|
|
static void term(int sig LTP_ATTRIBUTE_UNUSED)
|
{
|
int i;
|
|
tst_resm(TINFO, "\tterm -[%d]- got sig term.", getpid());
|
|
if (parent_pid == getpid()) {
|
for (i = 0; i < nchild; i++)
|
if (pidlist[i])
|
kill(pidlist[i], SIGTERM);
|
return;
|
}
|
|
tst_exit();
|
}
|
|
void cleanup(void)
|
{
|
|
tst_rmdir();
|
}
|
