[thirdparty/glibc.git] / rt / tst-aio.c

/* Tests for AIO in librt.
   Copyright (C) 1998-2019 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/>.  */

#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

/* 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 = xmalloc (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 aiocb **cbp, size_t nent, int allowed_err)
{
  int go_on;
  size_t cnt;
  int result = 0;

  do
    {
      aio_suspend ((const struct aiocb *const *) cbp, nent, NULL);
      go_on = 0;
      for (cnt = 0; cnt < nent; ++cnt)
	if (cbp[cnt] != NULL)
	  {
	    if (aio_error (cbp[cnt]) == EINPROGRESS)
	      go_on = 1;
	    else
	      {
		if (aio_return (cbp[cnt]) == -1
		    && (allowed_err == 0
			|| aio_error (cbp[cnt]) != allowed_err))
		  {
		    error (0, aio_error (cbp[cnt]), "Operation failed\n");
		    result = 1;
		  }
		cbp[cnt] = NULL;
	      }
	  }
    }
  while (go_on);

  return result;
}


int
do_test (int argc, char *argv[])
{
  struct aiocb cbs[10];
  struct aiocb cbs_fsync;
  struct aiocb *cbp[10];
  struct aiocb *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_write (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_read (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 (ftruncate (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_listio (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 (ftruncate (fd, 0) < 0)
    {
      error (0, errno, "ftruncate failed\n");
      result = 1;
    }

  /* Write again.  */
  for (cnt = 10; cnt > 0; )
    aio_write (cbp[--cnt]);

  if (aio_fsync (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 (ftruncate (fd, 0) < 0)
    {
      error (0, errno, "ftruncate failed\n");
      result = 1;
    }

  /* Write again.  */
  for (cnt = 10; cnt > 0; )
    aio_write (cbp[--cnt]);

  /* Cancel all requests.  */
  if (aio_cancel (fd, NULL) == -1)
    printf ("aio_cancel (fd, NULL) cannot cancel anything\n");

  result |= do_wait (cbp, 10, ECANCELED);

  /* Another test for aio_cancel.  */
  /* Remove the test file contents first.  */
  if (ftruncate (fd, 0) < 0)
    {
      error (0, errno, "ftruncate failed\n");
      result = 1;
    }

  /* Write again.  */
  for (cnt = 10; cnt > 0; )
    {
      --cnt;
      cbp[cnt] = &cbs[cnt];
      aio_write (cbp[cnt]);
    }
  puts ("finished3");

  /* Cancel all requests.  */
  for (cnt = 10; cnt > 0; )
    if (aio_cancel (fd, cbp[--cnt]) == -1)
      /* This is not an error.  The request can simply be finished.  */
      printf ("aio_cancel (fd, cbp[%Zd]) cannot be canceled\n", cnt);
  puts ("finished2");

  result |= do_wait (cbp, 10, ECANCELED);

  puts ("finished");

  return result;
}
Commit	Line	Data
b9337b6a	1	/* Tests for AIO in librt.
04277e02	2	Copyright (C) 1998-2019 Free Software Foundation, Inc.
41bdb6e2	3	This file is part of the GNU C Library.
b9337b6a UD	4	Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
	5
	6	The GNU C Library is free software; you can redistribute it and/or
41bdb6e2 AJ	7	modify it under the terms of the GNU Lesser General Public
	8	License as published by the Free Software Foundation; either
	9	version 2.1 of the License, or (at your option) any later version.
b9337b6a UD	10
	11	The GNU C Library is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
41bdb6e2	14	Lesser General Public License for more details.
b9337b6a	15
41bdb6e2	16	You should have received a copy of the GNU Lesser General Public
59ba27a6 PE	17	License along with the GNU C Library; if not, see
59ba27a6 PE	18	<http://www.gnu.org/licenses/>. */
b9337b6a UD	19
	20	#include <aio.h>
	21	#include <errno.h>
	22	#include <error.h>
84ad622b	23	#include <fcntl.h>
b9337b6a UD	24	#include <stdlib.h>
	25	#include <string.h>
	26	#include <unistd.h>
	27	#include <sys/stat.h>
	28
	29
310b3460 UD	30	/* Prototype for our test function. */
310b3460 UD	31	extern void do_prepare (int argc, char *argv[]);
b9337b6a UD	32	extern int do_test (int argc, char *argv[]);
b9337b6a UD	33
310b3460 UD	34	/* We have a preparation function. */
310b3460 UD	35	#define PREPARE do_prepare
b9337b6a	36
b9337b6a UD	37	/* This defines the `main' function and some more. */
	38	#include <test-skeleton.c>
	39
	40
310b3460 UD	41	/* These are for the temporary file we generate. */
	42	char *name;
	43	int fd;
	44
	45	void
	46	do_prepare (int argc, char *argv[])
	47	{
30aa5785	48	size_t name_len;
310b3460 UD	49
310b3460 UD	50	name_len = strlen (test_dir);
850c6760	51	name = xmalloc (name_len + sizeof ("/aioXXXXXX"));
310b3460 UD	52	mempcpy (mempcpy (name, test_dir, name_len),
310b3460 UD	53	"/aioXXXXXX", sizeof ("/aioXXXXXX"));
310b3460 UD	54
	55	/* Open our test file. */
	56	fd = mkstemp (name);
	57	if (fd == -1)
	58	error (EXIT_FAILURE, errno, "cannot open test file `%s'", name);
cf145565	59	add_temp_file (name);
310b3460 UD	60	}
	61
	62
f71bc3ba	63	static int
b9337b6a UD	64	test_file (const void buf, size_t size, int fd, const char msg)
	65	{
	66	struct stat st;
	67	char tmp[size];
	68
	69	errno = 0;
	70	if (fstat (fd, &st) < 0)
	71	{
	72	error (0, errno, "%s: failed stat", msg);
	73	return 1;
	74	}
	75
57b36a0a	76	if (st.st_size != (off_t) size)
b9337b6a UD	77	{
	78	error (0, errno, "%s: wrong size: %lu, should be %lu",
	79	msg, (unsigned long int) st.st_size, (unsigned long int) size);
	80	return 1;
	81	}
	82
57b36a0a	83	if (pread (fd, tmp, size, 0) != (ssize_t) size)
b9337b6a	84	{
9881cbf8	85	error (0, errno, "%s: failed pread", msg);
b9337b6a UD	86	return 1;
	87	}
	88
	89	if (memcmp (buf, tmp, size) != 0)
	90	{
	91	error (0, errno, "%s: failed comparison", msg);
	92	return 1;
	93	}
	94
6b9c2e67	95	printf ("%s test ok\n", msg);
b9337b6a UD	96
	97	return 0;
	98	}
	99
	100
f71bc3ba	101	static int
92806ee9	102	do_wait (struct aiocb **cbp, size_t nent, int allowed_err)
6b9c2e67 UD	103	{
6b9c2e67 UD	104	int go_on;
92806ee9 UD	105	size_t cnt;
	106	int result = 0;
	107
6b9c2e67 UD	108	do
6b9c2e67 UD	109	{
6b9c2e67 UD	110	aio_suspend ((const struct aiocb const ) cbp, nent, NULL);
	111	go_on = 0;
	112	for (cnt = 0; cnt < nent; ++cnt)
92806ee9 UD	113	if (cbp[cnt] != NULL)
	114	{
	115	if (aio_error (cbp[cnt]) == EINPROGRESS)
	116	go_on = 1;
	117	else
	118	{
	119	if (aio_return (cbp[cnt]) == -1
	120	&& (allowed_err == 0
	121	\|\| aio_error (cbp[cnt]) != allowed_err))
	122	{
	123	error (0, aio_error (cbp[cnt]), "Operation failed\n");
	124	result = 1;
	125	}
	126	cbp[cnt] = NULL;
	127	}
	128	}
6b9c2e67 UD	129	}
6b9c2e67 UD	130	while (go_on);
92806ee9 UD	131
92806ee9 UD	132	return result;
6b9c2e67 UD	133	}
	134
	135
b9337b6a UD	136	int
	137	do_test (int argc, char *argv[])
	138	{
b9337b6a	139	struct aiocb cbs[10];
92806ee9	140	struct aiocb cbs_fsync;
b9337b6a	141	struct aiocb *cbp[10];
92806ee9	142	struct aiocb *cbp_fsync[1];
b9337b6a UD	143	char buf[1000];
b9337b6a UD	144	size_t cnt;
b9337b6a	145	int result = 0;
b9337b6a	146
b9337b6a UD	147	/* Preparation. */
	148	for (cnt = 0; cnt < 10; ++cnt)
	149	{
	150	cbs[cnt].aio_fildes = fd;
	151	cbs[cnt].aio_reqprio = 0;
	152	cbs[cnt].aio_buf = memset (&buf[cnt * 100], '0' + cnt, 100);
	153	cbs[cnt].aio_nbytes = 100;
	154	cbs[cnt].aio_offset = cnt * 100;
	155	cbs[cnt].aio_sigevent.sigev_notify = SIGEV_NONE;
	156
	157	cbp[cnt] = &cbs[cnt];
	158	}
	159
	160	/* First a simple test. */
	161	for (cnt = 10; cnt > 0; )
ffa8d2a0 RM	162	if (aio_write (cbp[--cnt]) < 0 && errno == ENOSYS)
	163	{
	164	error (0, 0, "no aio support in this configuration");
	165	return 0;
	166	}
b9337b6a	167	/* Wait 'til the results are there. */
92806ee9	168	result \|= do_wait (cbp, 10, 0);
6b9c2e67 UD	169	/* Test this. */
	170	result \|= test_file (buf, sizeof (buf), fd, "aio_write");
	171
	172	/* Read now as we've written it. */
	173	memset (buf, '\0', sizeof (buf));
	174	/* Issue the commands. */
	175	for (cnt = 10; cnt > 0; )
b9337b6a	176	{
6b9c2e67 UD	177	--cnt;
	178	cbp[cnt] = &cbs[cnt];
	179	aio_read (cbp[cnt]);
b9337b6a	180	}
6b9c2e67	181	/* Wait 'til the results are there. */
92806ee9	182	result \|= do_wait (cbp, 10, 0);
b9337b6a	183	/* Test this. */
6b9c2e67 UD	184	for (cnt = 0; cnt < 1000; ++cnt)
	185	if (buf[cnt] != '0' + (cnt / 100))
	186	{
	187	result = 1;
	188	error (0, 0, "comparison failed for aio_read test");
	189	break;
	190	}
	191
	192	if (cnt == 1000)
	193	puts ("aio_read test ok");
	194
	195	/* Remove the test file contents. */
	196	if (ftruncate (fd, 0) < 0)
	197	{
	198	error (0, errno, "ftruncate failed\n");
	199	result = 1;
	200	}
	201
	202	/* Test lio_listio. */
	203	for (cnt = 0; cnt < 10; ++cnt)
	204	{
	205	cbs[cnt].aio_lio_opcode = LIO_WRITE;
	206	cbp[cnt] = &cbs[cnt];
	207	}
	208	/* Issue the command. */
	209	lio_listio (LIO_WAIT, cbp, 10, NULL);
	210	/* ...and immediately test it since we started it in wait mode. */
	211	result \|= test_file (buf, sizeof (buf), fd, "lio_listio (write)");
b9337b6a	212
92806ee9 UD	213	/* Test aio_fsync. */
	214	cbs_fsync.aio_fildes = fd;
	215	cbs_fsync.aio_sigevent.sigev_notify = SIGEV_NONE;
	216	cbp_fsync[0] = &cbs_fsync;
	217
	218	/* Remove the test file contents first. */
	219	if (ftruncate (fd, 0) < 0)
	220	{
	221	error (0, errno, "ftruncate failed\n");
	222	result = 1;
	223	}
	224
	225	/* Write again. */
	226	for (cnt = 10; cnt > 0; )
	227	aio_write (cbp[--cnt]);
	228
	229	if (aio_fsync (O_SYNC, &cbs_fsync) < 0)
	230	{
	231	error (0, errno, "aio_fsync failed\n");
	232	result = 1;
	233	}
	234	result \|= do_wait (cbp_fsync, 1, 0);
	235
	236	/* ...and test since all data should be on disk now. */
	237	result \|= test_file (buf, sizeof (buf), fd, "aio_fsync (aio_write)");
	238
	239	/* Test aio_cancel. */
	240	/* Remove the test file contents first. */
	241	if (ftruncate (fd, 0) < 0)
	242	{
	243	error (0, errno, "ftruncate failed\n");
	244	result = 1;
	245	}
	246
	247	/* Write again. */
	248	for (cnt = 10; cnt > 0; )
	249	aio_write (cbp[--cnt]);
	250
	251	/* Cancel all requests. */
	252	if (aio_cancel (fd, NULL) == -1)
	253	printf ("aio_cancel (fd, NULL) cannot cancel anything\n");
	254
	255	result \|= do_wait (cbp, 10, ECANCELED);
	256
	257	/* Another test for aio_cancel. */
	258	/* Remove the test file contents first. */
	259	if (ftruncate (fd, 0) < 0)
	260	{
	261	error (0, errno, "ftruncate failed\n");
	262	result = 1;
	263	}
	264
	265	/* Write again. */
	266	for (cnt = 10; cnt > 0; )
	267	{
	268	--cnt;
	269	cbp[cnt] = &cbs[cnt];
	270	aio_write (cbp[cnt]);
	271	}
	272	puts ("finished3");
	273
	274	/* Cancel all requests. */
	275	for (cnt = 10; cnt > 0; )
	276	if (aio_cancel (fd, cbp[--cnt]) == -1)
277	/* This is not an error. The request can simply be finished. */
278	printf ("aio_cancel (fd, cbp[%Zd]) cannot be canceled\n", cnt);
279	puts ("finished2");
280
281	result \|= do_wait (cbp, 10, ECANCELED);
282
283	puts ("finished");
284
b9337b6a UD	285	return result;
b9337b6a UD	286	}