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

/* Tests for 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/>.  */

#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 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.
f7a9f785	2	Copyright (C) 1998-2016 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 UD	36
	37	/* We might need a bit longer timeout. */
	38	#define TIMEOUT 20 /* sec */
	39
	40	/* This defines the `main' function and some more. */
	41	#include <test-skeleton.c>
	42
	43
310b3460 UD	44	/* These are for the temporary file we generate. */
	45	char *name;
	46	int fd;
	47
	48	void
	49	do_prepare (int argc, char *argv[])
	50	{
30aa5785	51	size_t name_len;
310b3460 UD	52
	53	name_len = strlen (test_dir);
	54	name = malloc (name_len + sizeof ("/aioXXXXXX"));
	55	mempcpy (mempcpy (name, test_dir, name_len),
	56	"/aioXXXXXX", sizeof ("/aioXXXXXX"));
310b3460 UD	57
	58	/* Open our test file. */
	59	fd = mkstemp (name);
	60	if (fd == -1)
	61	error (EXIT_FAILURE, errno, "cannot open test file `%s'", name);
cf145565	62	add_temp_file (name);
310b3460 UD	63	}
	64
	65
f71bc3ba	66	static int
b9337b6a UD	67	test_file (const void buf, size_t size, int fd, const char msg)
	68	{
	69	struct stat st;
	70	char tmp[size];
	71
	72	errno = 0;
	73	if (fstat (fd, &st) < 0)
	74	{
	75	error (0, errno, "%s: failed stat", msg);
	76	return 1;
	77	}
	78
57b36a0a	79	if (st.st_size != (off_t) size)
b9337b6a UD	80	{
	81	error (0, errno, "%s: wrong size: %lu, should be %lu",
	82	msg, (unsigned long int) st.st_size, (unsigned long int) size);
	83	return 1;
	84	}
	85
57b36a0a	86	if (pread (fd, tmp, size, 0) != (ssize_t) size)
b9337b6a	87	{
9881cbf8	88	error (0, errno, "%s: failed pread", msg);
b9337b6a UD	89	return 1;
	90	}
	91
	92	if (memcmp (buf, tmp, size) != 0)
	93	{
	94	error (0, errno, "%s: failed comparison", msg);
	95	return 1;
	96	}
	97
6b9c2e67	98	printf ("%s test ok\n", msg);
b9337b6a UD	99
	100	return 0;
	101	}
	102
	103
f71bc3ba	104	static int
92806ee9	105	do_wait (struct aiocb **cbp, size_t nent, int allowed_err)
6b9c2e67 UD	106	{
6b9c2e67 UD	107	int go_on;
92806ee9 UD	108	size_t cnt;
	109	int result = 0;
	110
6b9c2e67 UD	111	do
6b9c2e67 UD	112	{
6b9c2e67 UD	113	aio_suspend ((const struct aiocb const ) cbp, nent, NULL);
	114	go_on = 0;
	115	for (cnt = 0; cnt < nent; ++cnt)
92806ee9 UD	116	if (cbp[cnt] != NULL)
	117	{
	118	if (aio_error (cbp[cnt]) == EINPROGRESS)
	119	go_on = 1;
	120	else
	121	{
	122	if (aio_return (cbp[cnt]) == -1
	123	&& (allowed_err == 0
	124	\|\| aio_error (cbp[cnt]) != allowed_err))
	125	{
	126	error (0, aio_error (cbp[cnt]), "Operation failed\n");
	127	result = 1;
	128	}
	129	cbp[cnt] = NULL;
	130	}
	131	}
6b9c2e67 UD	132	}
6b9c2e67 UD	133	while (go_on);
92806ee9 UD	134
92806ee9 UD	135	return result;
6b9c2e67 UD	136	}
	137
	138
b9337b6a UD	139	int
	140	do_test (int argc, char *argv[])
	141	{
b9337b6a	142	struct aiocb cbs[10];
92806ee9	143	struct aiocb cbs_fsync;
b9337b6a	144	struct aiocb *cbp[10];
92806ee9	145	struct aiocb *cbp_fsync[1];
b9337b6a UD	146	char buf[1000];
b9337b6a UD	147	size_t cnt;
b9337b6a	148	int result = 0;
b9337b6a	149
b9337b6a UD	150	/* Preparation. */
	151	for (cnt = 0; cnt < 10; ++cnt)
	152	{
	153	cbs[cnt].aio_fildes = fd;
	154	cbs[cnt].aio_reqprio = 0;
	155	cbs[cnt].aio_buf = memset (&buf[cnt * 100], '0' + cnt, 100);
	156	cbs[cnt].aio_nbytes = 100;
	157	cbs[cnt].aio_offset = cnt * 100;
	158	cbs[cnt].aio_sigevent.sigev_notify = SIGEV_NONE;
	159
	160	cbp[cnt] = &cbs[cnt];
	161	}
	162
	163	/* First a simple test. */
	164	for (cnt = 10; cnt > 0; )
ffa8d2a0 RM	165	if (aio_write (cbp[--cnt]) < 0 && errno == ENOSYS)
	166	{
	167	error (0, 0, "no aio support in this configuration");
	168	return 0;
	169	}
b9337b6a	170	/* Wait 'til the results are there. */
92806ee9	171	result \|= do_wait (cbp, 10, 0);
6b9c2e67 UD	172	/* Test this. */
	173	result \|= test_file (buf, sizeof (buf), fd, "aio_write");
	174
	175	/* Read now as we've written it. */
	176	memset (buf, '\0', sizeof (buf));
	177	/* Issue the commands. */
	178	for (cnt = 10; cnt > 0; )
b9337b6a	179	{
6b9c2e67 UD	180	--cnt;
	181	cbp[cnt] = &cbs[cnt];
	182	aio_read (cbp[cnt]);
b9337b6a	183	}
6b9c2e67	184	/* Wait 'til the results are there. */
92806ee9	185	result \|= do_wait (cbp, 10, 0);
b9337b6a	186	/* Test this. */
6b9c2e67 UD	187	for (cnt = 0; cnt < 1000; ++cnt)
	188	if (buf[cnt] != '0' + (cnt / 100))
	189	{
	190	result = 1;
	191	error (0, 0, "comparison failed for aio_read test");
	192	break;
	193	}
	194
	195	if (cnt == 1000)
	196	puts ("aio_read test ok");
	197
	198	/* Remove the test file contents. */
	199	if (ftruncate (fd, 0) < 0)
	200	{
	201	error (0, errno, "ftruncate failed\n");
	202	result = 1;
	203	}
	204
	205	/* Test lio_listio. */
	206	for (cnt = 0; cnt < 10; ++cnt)
	207	{
	208	cbs[cnt].aio_lio_opcode = LIO_WRITE;
	209	cbp[cnt] = &cbs[cnt];
	210	}
	211	/* Issue the command. */
	212	lio_listio (LIO_WAIT, cbp, 10, NULL);
	213	/* ...and immediately test it since we started it in wait mode. */
	214	result \|= test_file (buf, sizeof (buf), fd, "lio_listio (write)");
b9337b6a	215
92806ee9 UD	216	/* Test aio_fsync. */
	217	cbs_fsync.aio_fildes = fd;
	218	cbs_fsync.aio_sigevent.sigev_notify = SIGEV_NONE;
	219	cbp_fsync[0] = &cbs_fsync;
	220
	221	/* Remove the test file contents first. */
	222	if (ftruncate (fd, 0) < 0)
	223	{
	224	error (0, errno, "ftruncate failed\n");
	225	result = 1;
	226	}
	227
	228	/* Write again. */
	229	for (cnt = 10; cnt > 0; )
	230	aio_write (cbp[--cnt]);
	231
	232	if (aio_fsync (O_SYNC, &cbs_fsync) < 0)
	233	{
	234	error (0, errno, "aio_fsync failed\n");
	235	result = 1;
	236	}
	237	result \|= do_wait (cbp_fsync, 1, 0);
	238
	239	/* ...and test since all data should be on disk now. */
	240	result \|= test_file (buf, sizeof (buf), fd, "aio_fsync (aio_write)");
	241
	242	/* Test aio_cancel. */
	243	/* Remove the test file contents first. */
	244	if (ftruncate (fd, 0) < 0)
	245	{
	246	error (0, errno, "ftruncate failed\n");
	247	result = 1;
	248	}
	249
	250	/* Write again. */
	251	for (cnt = 10; cnt > 0; )
	252	aio_write (cbp[--cnt]);
	253
	254	/* Cancel all requests. */
	255	if (aio_cancel (fd, NULL) == -1)
	256	printf ("aio_cancel (fd, NULL) cannot cancel anything\n");
	257
	258	result \|= do_wait (cbp, 10, ECANCELED);
	259
	260	/* Another test for aio_cancel. */
	261	/* Remove the test file contents first. */
	262	if (ftruncate (fd, 0) < 0)
	263	{
	264	error (0, errno, "ftruncate failed\n");
	265	result = 1;
	266	}
	267
	268	/* Write again. */
	269	for (cnt = 10; cnt > 0; )
	270	{
	271	--cnt;
	272	cbp[cnt] = &cbs[cnt];
	273	aio_write (cbp[cnt]);
	274	}
	275	puts ("finished3");
	276
	277	/* Cancel all requests. */
	278	for (cnt = 10; cnt > 0; )
	279	if (aio_cancel (fd, cbp[--cnt]) == -1)
280	/* This is not an error. The request can simply be finished. */
281	printf ("aio_cancel (fd, cbp[%Zd]) cannot be canceled\n", cnt);
282	puts ("finished2");
283
284	result \|= do_wait (cbp, 10, ECANCELED);
285
286	puts ("finished");
287
b9337b6a UD	288	return result;
b9337b6a UD	289	}