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authorRoland McGrath <roland@gnu.org>2001-06-16 04:47:37 +0000
committerRoland McGrath <roland@gnu.org>2001-06-16 04:47:37 +0000
commit5ec73bb91f231a0d7a3c54183a9282cafd5511cb (patch)
tree42da8a5cc86f92fa1331117501a336064a19ba7f /rt/aio_notify.c
parent636ccfc8fb4c9bd450fa5b7982771912a602d2b0 (diff)
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2001-06-15 Roland McGrath <roland@frob.com>
* rt/Makefile (aio-routines, clock-routines, timer-routines): New variables, broken out of librt-routines. (librt-routines): Set using those. (extra-libs, extra-libc-others, tests): Set these unconditionally. (distribute): No need for $(librt-map) or $(librt-routines:=.c) here. * sysdeps/generic/aio_fsync.c: New file. * sysdeps/generic/aio_misc.c: New file. * sysdeps/generic/aio_write.c: New file. * sysdeps/generic/aio_write64.c: New file. * sysdeps/generic/aio_read64.c: New file. * sysdeps/generic/aio_read.c: New file. * sysdeps/generic/aio_notify.c: New file. * sysdeps/generic/lio_listio64.c: New file. * sysdeps/generic/lio_listio.c: New file. * sysdeps/generic/aio_cancel.c: New file. * sysdeps/generic/aio_misc.h: New file. * sysdeps/generic/aio_suspend.c: New file. * rt/aio_cancel.c: Moved to ... * sysdeps/pthread/aio_cancel.c: ... here. * rt/aio_fsync.c: Moved to ... * sysdeps/pthread/aio_fsync.c: ... here. * rt/aio_misc.c: Moved to ... * sysdeps/pthread/aio_misc.c: ... here. * rt/aio_misc.h: Moved to ... * sysdeps/pthread/aio_misc.h: ... here. * rt/aio_notify.c: Moved to ... * sysdeps/pthread/aio_notify.c: ... here. * rt/aio_read.c: Moved to ... * sysdeps/pthread/aio_read.c: ... here. * rt/aio_read64.c: Moved to ... * sysdeps/pthread/aio_read64.c: ... here. * rt/aio_suspend.c: Moved to ... * sysdeps/pthread/aio_suspend.c: ... here. * rt/aio_write.c: Moved to ... * sysdeps/pthread/aio_write.c: ... here. * rt/aio_write64.c: Moved to ... * sysdeps/pthread/aio_write64.c: ... here. * rt/lio_listio.c: Moved to ... * sysdeps/pthread/lio_listio.c: ... here. * rt/lio_listio64.c: Moved to ... * sysdeps/pthread/lio_listio64.c: ... here.
Diffstat (limited to 'rt/aio_notify.c')
-rw-r--r--rt/aio_notify.c119
1 files changed, 0 insertions, 119 deletions
diff --git a/rt/aio_notify.c b/rt/aio_notify.c
deleted file mode 100644
index 9b17750..0000000
--- a/rt/aio_notify.c
+++ /dev/null
@@ -1,119 +0,0 @@
-/* Notify initiator of AIO request.
- Copyright (C) 1997,98,99,2000,01 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.
-
- 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.
-
- 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. */
-
-#include <errno.h>
-#include <pthread.h>
-#include <stdlib.h>
-#include <unistd.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 _POSIX_REALTIME_SIGNALS
- /* Note that the standard gives us the option of using a plain
- non-queuing signal here when SA_SIGINFO is not set for the signal. */
- if (__aio_sigqueue (sigev->sigev_signo, sigev->sigev_value, caller_pid)
- < 0)
- result = -1;
-#else
- /* There are no queued signals on this system at all. */
- result = raise (sigev->sigev_signo);
-#endif
- }
-
- 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;
- }
-}