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author | Roland McGrath <roland@gnu.org> | 2001-06-16 04:47:37 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 2001-06-16 04:47:37 +0000 |
commit | 5ec73bb91f231a0d7a3c54183a9282cafd5511cb (patch) | |
tree | 42da8a5cc86f92fa1331117501a336064a19ba7f /rt/aio_notify.c | |
parent | 636ccfc8fb4c9bd450fa5b7982771912a602d2b0 (diff) | |
download | glibc-5ec73bb91f231a0d7a3c54183a9282cafd5511cb.zip glibc-5ec73bb91f231a0d7a3c54183a9282cafd5511cb.tar.gz glibc-5ec73bb91f231a0d7a3c54183a9282cafd5511cb.tar.bz2 |
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.c | 119 |
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; - } -} |