Update copyright dates with scripts/update-copyrights

[thirdparty/glibc.git] / rt / aio_notify.c

diff --git a/rt/aio_notify.c b/rt/aio_notify.c
index 558b2d2451421002b30224a0ff1ebc514744cbd6..9d51fd9c5e86141715700aca7af0e32357182626 100644 (file)
--- a/rt/aio_notify.c
+++ b/rt/aio_notify.c
@@ -1,109 +1,23 @@
-/* Notify initiator of AIO request.
-   Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+/* Notify initiator of AIO request.  Stub version.
+   Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
+   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
-   Library General Public License for more details.
+   Lesser General Public License for more details.
 
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
 
-#include <errno.h>
-#include <pthread.h>
-#include <stdlib.h>
-#include "aio_misc.h"
+#include <aio.h>
+#include <aio_misc.h>
 
-
-static void *
-notify_func_wrapper (void *arg)
-{
-  struct sigevent *sigev = arg;
-  sigev->sigev_notify_function (sigev->sigev_value);
-  return NULL;
-}
-
-
-int
-internal_function
-__aio_notify_only (struct sigevent *sigev, pid_t caller_pid)
-{
-  int result = 0;
-
-  /* Send the signal to notify about finished processing of the request.  */
-  if (sigev->sigev_notify == SIGEV_THREAD)
-    {
-      /* We have to start a thread.  */
-      pthread_t tid;
-      pthread_attr_t attr, *pattr;
-
-      pattr = (pthread_attr_t *) sigev->sigev_notify_attributes;
-      if (pattr == NULL)
-       {
-         pthread_attr_init (&attr);
-         pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
-         pattr = &attr;
-       }
-
-      if (pthread_create (&tid, pattr, notify_func_wrapper, sigev) < 0)
-       result = -1;
-    }
-  else if (sigev->sigev_notify == SIGEV_SIGNAL)
-    /* We have to send a signal.  */
-    if (__aio_sigqueue (sigev->sigev_signo, sigev->sigev_value, caller_pid)
-       < 0)
-      result = -1;
-
-  return result;
-}
-
-
-void
-internal_function
-__aio_notify (struct requestlist *req)
-{
-  struct waitlist *waitlist;
-  struct aiocb *aiocbp = &req->aiocbp->aiocb;
-
-  if (__aio_notify_only (&aiocbp->aio_sigevent, req->caller_pid) != 0)
-    {
-      /* XXX What shall we do if already an error is set by
-        read/write/fsync?  */
-      aiocbp->__error_code = errno;
-      aiocbp->__return_value = -1;
-    }
-
-  /* Now also notify possibly waiting threads.  */
-  waitlist = req->waiting;
-  while (waitlist != NULL)
-    {
-      struct waitlist *next = waitlist->next;
-
-      /* Decrement the counter.  This is used in both cases.  */
-      --*waitlist->counterp;
-
-      if (waitlist->sigevp == NULL)
-       pthread_cond_signal (waitlist->cond);
-      else
-       /* This is part of a asynchronous `lio_listio' operation.  If
-          this request is the last one, send the signal.  */
-       if (*waitlist->counterp == 0)
-         {
-           __aio_notify_only (waitlist->sigevp, waitlist->caller_pid);
-           /* This is tricky.  See lio_listio.c for the reason why
-              this works.  */
-           free ((void *) waitlist->counterp);
-         }
-
-      waitlist = next;
-    }
-}
+/* This file contains only internal functions used by
+   the particular aio_* implementation code.  */