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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/lio_listio64.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/lio_listio64.c')
-rw-r--r--rt/lio_listio64.c169
1 files changed, 0 insertions, 169 deletions
diff --git a/rt/lio_listio64.c b/rt/lio_listio64.c
deleted file mode 100644
index 5df2596c0f..0000000000
--- a/rt/lio_listio64.c
+++ /dev/null
@@ -1,169 +0,0 @@
-/* Enqueue and list of read or write requests, 64bit offset version.
-   Copyright (C) 1997, 1998, 1999 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 <aio.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include "aio_misc.h"
-
-
-/* We need this special structure to handle asynchronous I/O.  */
-struct async_waitlist
-  {
-    int counter;
-    struct sigevent sigev;
-    struct waitlist list[0];
-  };
-
-
-int
-lio_listio64 (mode, list, nent, sig)
-     int mode;
-     struct aiocb64 *const list[];
-     int nent;
-     struct sigevent *sig;
-{
-  struct requestlist *requests[nent];
-  int cnt;
-  volatile int total = 0;
-  int result = 0;
-
-  /* Check arguments.  */
-  if (mode != LIO_WAIT && mode != LIO_NOWAIT)
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  /* Request the mutex.  */
-  pthread_mutex_lock (&__aio_requests_mutex);
-
-  /* Now we can enqueue all requests.  Since we already acquired the
-     mutex the enqueue function need not do this.  */
-  for (cnt = 0; cnt < nent; ++cnt)
-    if (list[cnt] != NULL && list[cnt]->aio_lio_opcode != LIO_NOP)
-      {
-	requests[cnt] = __aio_enqueue_request ((aiocb_union *) list[cnt],
-					       (list[cnt]->aio_lio_opcode
-						| 128));
-	if (requests[cnt] != NULL)
-	  /* Successfully enqueued.  */
-	  ++total;
-	else
-	  /* Signal that we've seen an error.  `errno' and the error code
-	     of the aiocb will tell more.  */
-	  result = -1;
-      }
-
-  if (total == 0)
-    {
-      /* We don't have anything to do except signalling if we work
-	 asynchronously.  */
-
-      /* Release the mutex.  We do this before raising a signal since the
-	 signal handler might do a `siglongjmp' and then the mutex is
-	 locked forever.  */
-      pthread_mutex_unlock (&__aio_requests_mutex);
-
-      if (mode == LIO_NOWAIT)
-	__aio_notify_only (sig,
-			   sig->sigev_notify == SIGEV_SIGNAL ? getpid () : 0);
-
-      return result;
-    }
-  else if (mode == LIO_WAIT)
-    {
-      pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
-      struct waitlist waitlist[nent];
-      int oldstate;
-
-      total = 0;
-      for (cnt = 0; cnt < nent; ++cnt)
-	if (list[cnt] != NULL && list[cnt]->aio_lio_opcode != LIO_NOP
-	    && requests[cnt] != NULL)
-	  {
-	    waitlist[cnt].cond = &cond;
-	    waitlist[cnt].next = requests[cnt]->waiting;
-	    waitlist[cnt].counterp = &total;
-	    waitlist[cnt].sigevp = NULL;
-	    waitlist[cnt].caller_pid = 0;	/* Not needed.  */
-	    requests[cnt]->waiting = &waitlist[cnt];
-	    ++total;
-	  }
-
-      /* Since `pthread_cond_wait'/`pthread_cond_timedwait' are cancelation
-	 points we must be careful.  We added entries to the waiting lists
-	 which we must remove.  So defer cancelation for now.  */
-      pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &oldstate);
-
-      while (total > 0)
-	pthread_cond_wait (&cond, &__aio_requests_mutex);
-
-      /* Now it's time to restore the cancelation state.  */
-      pthread_setcancelstate (oldstate, NULL);
-
-      /* Release the conditional variable.  */
-      if (pthread_cond_destroy (&cond) != 0)
-	/* This must never happen.  */
-	abort ();
-    }
-  else
-    {
-      struct async_waitlist *waitlist;
-
-      waitlist = (struct async_waitlist *)
-	malloc (sizeof (struct async_waitlist)
-		+ (nent * sizeof (struct waitlist)));
-
-      if (waitlist == NULL)
-	{
-	  __set_errno (EAGAIN);
-	  result = -1;
-	}
-      else
-	{
-	  pid_t caller_pid = sig->sigev_notify == SIGEV_SIGNAL ? getpid () : 0;
-	  total = 0;
-
-	  for (cnt = 0; cnt < nent; ++cnt)
-	    if (list[cnt] != NULL && list[cnt]->aio_lio_opcode != LIO_NOP
-		&& requests[cnt] != NULL)
-	      {
-		waitlist->list[cnt].cond = NULL;
-		waitlist->list[cnt].next = requests[cnt]->waiting;
-		waitlist->list[cnt].counterp = &waitlist->counter;
-		waitlist->list[cnt].sigevp = &waitlist->sigev;
-		waitlist->list[cnt].caller_pid = caller_pid;
-		requests[cnt]->waiting = &waitlist->list[cnt];
-		++total;
-	      }
-
-	  waitlist->counter = total;
-	  waitlist->sigev = *sig;
-	}
-    }
-
-  /* Release the mutex.  */
-  pthread_mutex_unlock (&__aio_requests_mutex);
-
-  return result;
-}