summaryrefslogtreecommitdiff
path: root/rtkaio/tst-aiod.c
diff options
context:
space:
mode:
Diffstat (limited to 'rtkaio/tst-aiod.c')
-rw-r--r--rtkaio/tst-aiod.c307
1 files changed, 307 insertions, 0 deletions
diff --git a/rtkaio/tst-aiod.c b/rtkaio/tst-aiod.c
new file mode 100644
index 0000000000..a8b58106dc
--- /dev/null
+++ b/rtkaio/tst-aiod.c
@@ -0,0 +1,307 @@
+/* Tests for AIO in librt.
+ Copyright (C) 1998, 2000, 2002, 2006 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <aio.h>
+#include <errno.h>
+#include <error.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include "tst-aiod.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;
+char *tmpbuf;
+int blksz = 100;
+
+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"));
+ add_temp_file (name);
+
+ /* Open our test file. */
+ fd = mkstemp (name);
+ if (fd == -1)
+ error (EXIT_FAILURE, errno, "cannot open test file `%s'", name);
+
+ int sz = set_o_direct (fd);
+ if (sz != -1)
+ {
+ blksz = sz;
+ printf ("Using O_DIRECT with block size %d\n", blksz);
+ }
+}
+
+
+static int
+test_file (const void *buf, size_t size, int fd, const char *msg)
+{
+ struct stat st;
+ char *tmp = tmpbuf;
+
+ 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;
+ size_t cnt;
+ int result = 0;
+
+ buf = mmap (NULL, 20 * blksz, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+ tmpbuf = buf + 10 * blksz;
+ if (buf == MAP_FAILED)
+ {
+ error (0, errno, "mmap failed");
+ return 1;
+ }
+
+ /* Preparation. */
+ for (cnt = 0; cnt < 10; ++cnt)
+ {
+ cbs[cnt].aio_fildes = fd;
+ cbs[cnt].aio_reqprio = 0;
+ cbs[cnt].aio_buf = memset (&buf[cnt * blksz], '0' + cnt, blksz);
+ cbs[cnt].aio_nbytes = blksz;
+ cbs[cnt].aio_offset = cnt * blksz;
+ 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, 10 * blksz, fd, "aio_write");
+
+ /* Read now as we've written it. */
+ memset (buf, '\0', 10 * blksz);
+ /* 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 < 10 * blksz; ++cnt)
+ if (buf[cnt] != '0' + (cnt / blksz))
+ {
+ result = 1;
+ error (0, 0, "comparison failed for aio_read test");
+ break;
+ }
+
+ if (cnt == 10 * blksz)
+ 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, 10 * blksz, 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, 10 * blksz, 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;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-20 18:51:04 +0000