scalls.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "libaio.h"
extern int __uaio_ok;
extern void _cancelon(void);
extern void _canceloff(void);
#pragma weak close = _libaio_close
int
_libaio_close(int fd)
{
int rc;
if (__uaio_ok)
(void) aiocancel_all(fd);
_cancelon();
rc = _close(fd);
_canceloff();
/*
* If the file is successfully closed, clear the
* bit for this file, as the next open may re-use this
* file descriptor, and the new file may have
* different kaio() behaviour
*/
if (rc == 0)
CLEAR_KAIO_SUPPORTED(fd);
return (rc);
}
#pragma weak fork = _libaio_fork
pid_t
_libaio_fork(void)
{
pid_t pid;
if (__uaio_ok || _kaio_ok) {
pid = fork1();
if (pid == 0)
_aio_forkinit();
return (pid);
}
return (_fork());
}