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glibc/rt/tst-aio64.c
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/* Tests for 64bit AIO in librt. | |
Copyright (C) 1998-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library 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 | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#define _LARGEFILE_SOURCE 1 | |
#include <aio.h> | |
#include <errno.h> | |
#include <error.h> | |
#include <fcntl.h> | |
#include <stdlib.h> | |
#include <string.h> | |
#include <unistd.h> | |
#include <sys/stat.h> | |
/* Prototype for our test function. */ | |
extern void do_prepare (int argc, char *argv[]); | |
extern int do_test (int argc, char *argv[]); | |
/* We have a preparation function. */ | |
#define PREPARE do_prepare | |
/* We might need a bit longer timeout. */ | |
#define TIMEOUT 20 /* sec */ | |
/* This defines the `main' function and some more. */ | |
#include <test-skeleton.c> | |
/* These are for the temporary file we generate. */ | |
char *name; | |
int fd; | |
void | |
do_prepare (int argc, char *argv[]) | |
{ | |
size_t name_len; | |
name_len = strlen (test_dir); | |
name = malloc (name_len + sizeof ("/aioXXXXXX")); | |
mempcpy (mempcpy (name, test_dir, name_len), | |
"/aioXXXXXX", sizeof ("/aioXXXXXX")); | |
/* Open our test file. */ | |
fd = mkstemp (name); | |
if (fd == -1) | |
error (EXIT_FAILURE, errno, "cannot open test file `%s'", name); | |
add_temp_file (name); | |
} | |
static int | |
test_file (const void *buf, size_t size, int fd, const char *msg) | |
{ | |
struct stat st; | |
char tmp[size]; | |
errno = 0; | |
if (fstat (fd, &st) < 0) | |
{ | |
error (0, errno, "%s: failed stat", msg); | |
return 1; | |
} | |
if (st.st_size != (off_t) size) | |
{ | |
error (0, errno, "%s: wrong size: %lu, should be %lu", | |
msg, (unsigned long int) st.st_size, (unsigned long int) size); | |
return 1; | |
} | |
if (pread (fd, tmp, size, 0) != (ssize_t) size) | |
{ | |
error (0, errno, "%s: failed pread", msg); | |
return 1; | |
} | |
if (memcmp (buf, tmp, size) != 0) | |
{ | |
error (0, errno, "%s: failed comparison", msg); | |
return 1; | |
} | |
printf ("%s test ok\n", msg); | |
return 0; | |
} | |
static int | |
do_wait (struct aiocb64 **cbp, size_t nent, int allowed_err) | |
{ | |
int go_on; | |
size_t cnt; | |
int result = 0; | |
do | |
{ | |
aio_suspend64 ((const struct aiocb64 *const *) cbp, nent, NULL); | |
go_on = 0; | |
for (cnt = 0; cnt < nent; ++cnt) | |
if (cbp[cnt] != NULL) | |
{ | |
if (aio_error64 (cbp[cnt]) == EINPROGRESS) | |
go_on = 1; | |
else | |
{ | |
if (aio_return64 (cbp[cnt]) == -1 | |
&& (allowed_err == 0 | |
|| aio_error64 (cbp[cnt]) != allowed_err)) | |
{ | |
error (0, aio_error64 (cbp[cnt]), "Operation failed\n"); | |
result = 1; | |
} | |
cbp[cnt] = NULL; | |
} | |
} | |
} | |
while (go_on); | |
return result; | |
} | |
int | |
do_test (int argc, char *argv[]) | |
{ | |
struct aiocb64 cbs[10]; | |
struct aiocb64 cbs_fsync; | |
struct aiocb64 *cbp[10]; | |
struct aiocb64 *cbp_fsync[1]; | |
char buf[1000]; | |
size_t cnt; | |
int result = 0; | |
/* Preparation. */ | |
for (cnt = 0; cnt < 10; ++cnt) | |
{ | |
cbs[cnt].aio_fildes = fd; | |
cbs[cnt].aio_reqprio = 0; | |
cbs[cnt].aio_buf = memset (&buf[cnt * 100], '0' + cnt, 100); | |
cbs[cnt].aio_nbytes = 100; | |
cbs[cnt].aio_offset = cnt * 100; | |
cbs[cnt].aio_sigevent.sigev_notify = SIGEV_NONE; | |
cbp[cnt] = &cbs[cnt]; | |
} | |
/* First a simple test. */ | |
for (cnt = 10; cnt > 0; ) | |
if (aio_write64 (cbp[--cnt]) < 0 && errno == ENOSYS) | |
{ | |
error (0, 0, "no aio support in this configuration"); | |
return 0; | |
} | |
/* Wait 'til the results are there. */ | |
result |= do_wait (cbp, 10, 0); | |
/* Test this. */ | |
result |= test_file (buf, sizeof (buf), fd, "aio_write"); | |
/* Read now as we've written it. */ | |
memset (buf, '\0', sizeof (buf)); | |
/* Issue the commands. */ | |
for (cnt = 10; cnt > 0; ) | |
{ | |
--cnt; | |
cbp[cnt] = &cbs[cnt]; | |
aio_read64 (cbp[cnt]); | |
} | |
/* Wait 'til the results are there. */ | |
result |= do_wait (cbp, 10, 0); | |
/* Test this. */ | |
for (cnt = 0; cnt < 1000; ++cnt) | |
if (buf[cnt] != '0' + (cnt / 100)) | |
{ | |
result = 1; | |
error (0, 0, "comparison failed for aio_read test"); | |
break; | |
} | |
if (cnt == 1000) | |
puts ("aio_read test ok"); | |
/* Remove the test file contents. */ | |
if (ftruncate64 (fd, 0) < 0) | |
{ | |
error (0, errno, "ftruncate failed\n"); | |
result = 1; | |
} | |
/* Test lio_listio. */ | |
for (cnt = 0; cnt < 10; ++cnt) | |
{ | |
cbs[cnt].aio_lio_opcode = LIO_WRITE; | |
cbp[cnt] = &cbs[cnt]; | |
} | |
/* Issue the command. */ | |
lio_listio64 (LIO_WAIT, cbp, 10, NULL); | |
/* ...and immediately test it since we started it in wait mode. */ | |
result |= test_file (buf, sizeof (buf), fd, "lio_listio (write)"); | |
/* Test aio_fsync. */ | |
cbs_fsync.aio_fildes = fd; | |
cbs_fsync.aio_sigevent.sigev_notify = SIGEV_NONE; | |
cbp_fsync[0] = &cbs_fsync; | |
/* Remove the test file contents first. */ | |
if (ftruncate64 (fd, 0) < 0) | |
{ | |
error (0, errno, "ftruncate failed\n"); | |
result = 1; | |
} | |
/* Write again. */ | |
for (cnt = 10; cnt > 0; ) | |
aio_write64 (cbp[--cnt]); | |
if (aio_fsync64 (O_SYNC, &cbs_fsync) < 0) | |
{ | |
error (0, errno, "aio_fsync failed\n"); | |
result = 1; | |
} | |
result |= do_wait (cbp_fsync, 1, 0); | |
/* ...and test since all data should be on disk now. */ | |
result |= test_file (buf, sizeof (buf), fd, "aio_fsync (aio_write)"); | |
/* Test aio_cancel. */ | |
/* Remove the test file contents first. */ | |
if (ftruncate64 (fd, 0) < 0) | |
{ | |
error (0, errno, "ftruncate failed\n"); | |
result = 1; | |
} | |
/* Write again. */ | |
for (cnt = 10; cnt > 0; ) | |
aio_write64 (cbp[--cnt]); | |
/* Cancel all requests. */ | |
if (aio_cancel64 (fd, NULL) == -1) | |
printf ("aio_cancel64 (fd, NULL) cannot cancel anything\n"); | |
result |= do_wait (cbp, 10, ECANCELED); | |
/* Another test for aio_cancel. */ | |
/* Remove the test file contents first. */ | |
if (ftruncate64 (fd, 0) < 0) | |
{ | |
error (0, errno, "ftruncate failed\n"); | |
result = 1; | |
} | |
/* Write again. */ | |
for (cnt = 10; cnt > 0; ) | |
{ | |
--cnt; | |
cbp[cnt] = &cbs[cnt]; | |
aio_write64 (cbp[cnt]); | |
} | |
puts ("finished3"); | |
/* Cancel all requests. */ | |
for (cnt = 10; cnt > 0; ) | |
if (aio_cancel64 (fd, cbp[--cnt]) == -1) | |
/* This is not an error. The request can simply be finished. */ | |
printf ("aio_cancel64 (fd, cbp[%Zd]) cannot be canceled\n", cnt); | |
puts ("finished2"); | |
result |= do_wait (cbp, 10, ECANCELED); | |
puts ("finished"); | |
return result; | |
} |