Update.

2002-06-18  Amos Waterland  <apw@us.ibm.com>

	* sysdeps/pthread/aio_cancel.c (aio_cancel): Add check for invalid
	file descriptor.
	* sysdeps/pthread/aio_fsync.c (aio_fsync): Add check for invalid fd;
	add check for fd not open for writing.

	* sysdeps/pthread/aio_suspend.c (aio_suspend): Add check for
	completed element(s) and do not suspend thread if so.  Patch
	heavily modified by drepper.

	* rt/tst-aio7.c: New file.  Regression test for problems which the
	above three changes fix.
	* rt/Makefile (tests): Add tst-aio7.

	* rt/tst-aio6.c: Fix comment.

1 files changed, 175 insertions, 0 deletions

diff --git a/rt/tst-aio7.c b/rt/tst-aio7.c
new file mode 100644
index 0000000..1b3bdea
--- /dev/null
+++ b/rt/tst-aio7.c
@@ -0,0 +1,175 @@
+/* Test for AIO POSIX compliance.
+   Copyright (C) 2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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 <error.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+
+/* We might wait for 3 seconds, so increase timeout to 10 seconds.  */
+#define TIMEOUT 10
+
+
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+  int result = 0;
+
+  /* Test for aio_cancel() detecting invalid file descriptor.  */
+  {
+    struct aiocb cb;
+    int fd = -1;
+
+    cb.aio_fildes = fd;
+    cb.aio_offset = 0;
+    cb.aio_buf = NULL;
+    cb.aio_nbytes = 0;
+    cb.aio_reqprio = 0;
+    cb.aio_sigevent.sigev_notify = SIGEV_NONE;
+
+    errno = 0;
+
+    /* Case one: invalid fds that match.  */
+    if (aio_cancel (fd, &cb) != -1 || errno != EBADF)
+      {
+	puts ("aio_cancel( -1, {-1..} ) did not return -1 or errno != EBADF");
+	++result;
+      }
+
+    cb.aio_fildes = -2;
+    errno = 0;
+
+    /* Case two: invalid fds that do not match; just print warning.  */
+    if (aio_cancel (fd, &cb) != -1 || errno != EBADF)
+      puts ("aio_cancel( -1, {-2..} ) did not return -1 or errno != EBADF");
+  }
+
+  /* Test for aio_fsync() detecting bad fd, and fd not open for writing.  */
+  {
+    struct aiocb cb;
+    int fd = -1;
+
+    cb.aio_fildes = fd;
+    cb.aio_offset = 0;
+    cb.aio_buf = NULL;
+    cb.aio_nbytes = 0;
+    cb.aio_reqprio = 0;
+    cb.aio_sigevent.sigev_notify = SIGEV_NONE;
+
+    errno = 0;
+
+    /* Case one: invalid fd.  */
+    if (aio_fsync (O_SYNC, &cb) != -1 || errno != EBADF)
+      {
+	puts ("aio_fsync( op, {-1..} ) did not return -1 or errno != EBADF");
+	++result;
+      }
+
+    if ((fd = open ("/dev/null", O_RDONLY)) < 0)
+      error (1, errno, "opening /dev/null");
+
+    cb.aio_fildes = fd;
+    errno = 0;
+
+    /* Case two: valid fd but open for read only.  */
+    if (aio_fsync (O_SYNC, &cb) != -1 || errno != EBADF)
+      {
+	puts ("aio_fsync( op, {RO..} ) did not return -1 or errno != EBADF");
+	++result;
+      }
+
+    close (fd);
+  }
+
+  /* Test for aio_suspend() suspending even if completed elements in list.  */
+  {
+    const int BYTES = 8, ELEMS = 2;
+    int i, r, fd;
+    char buff[BYTES];
+    char name[] = "/tmp/aio7.XXXXXX";
+    struct timespec timeout;
+    struct aiocb cb0, cb1;
+    struct aiocb *list[ELEMS];
+
+    fd = mkstemp (name);
+    if (fd < 0)
+      error (1, errno, "creating temp file");
+
+    if (unlink (name))
+      error (1, errno, "unlinking temp file");
+
+    if (write (fd, "01234567", BYTES) != BYTES)
+      error (1, errno, "writing to temp file");
+
+    cb0.aio_fildes = fd;
+    cb0.aio_offset = 0;
+    cb0.aio_buf = buff;
+    cb0.aio_nbytes = BYTES;
+    cb0.aio_reqprio = 0;
+    cb0.aio_sigevent.sigev_notify = SIGEV_NONE;
+
+    r = aio_read (&cb0);
+    if (r != 0)
+      error (1, errno, "reading from file");
+
+    while (aio_error (&(cb0)) == EINPROGRESS)
+      usleep (10);
+
+    for (i = 0; i < BYTES; i++)
+      printf ("%c ", buff[i]);
+    printf ("\n");
+
+    /* At this point, the first read is completed, so start another one on
+     * stdin, which will not complete unless the user inputs something.
+     */
+    cb1.aio_fildes = 0;
+    cb1.aio_offset = 0;
+    cb1.aio_buf = buff;
+    cb1.aio_nbytes = BYTES;
+    cb1.aio_reqprio = 0;
+    cb1.aio_sigevent.sigev_notify = SIGEV_NONE;
+
+    r = aio_read (&cb1);
+    if (r != 0)
+      error (1, errno, "reading from file");
+
+    /* Now call aio_suspend() with the two reads.  It should return
+     * immediately according to the POSIX spec.
+     */
+    list[0] = &cb0;
+    list[1] = &cb1;
+    timeout.tv_sec = 3;
+    timeout.tv_nsec = 0;
+    r = aio_suspend ((const struct aiocb * const *) list, ELEMS, &timeout);
+
+    if (r == -1 && errno == EAGAIN)
+      {
+	puts ("aio_suspend([done,blocked],2,3) suspended thread");
+	++result;
+      }
+  }
+
+  return result;
+}
+
+#include "../test-skeleton.c"