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aac4ad2c99
Changes to support building with _POSIX_SOURCE set to 199309L: 1. Add sys/_posix.h to handle those preprocessor defs that POSIX says have effects when defined before including any header files; 2. Change POSIX4_VISIBLE back to _POSIX4_VISIBLE 3. Add _POSIX4_VISIBLE_HISTORICALLY for pre-existing BSD features now defined in POSIX. These show up when: _POSIX_SOURCE and _POSIX_C_SOURCE are not set or _POSIX_C_SOURCE is set >= 199309L and vanish when: _POSIX_SOURCE is set or _POSIX_C_SOURCE is < 199309L. 4. Explain these in man 9 posix4; 5. Include _posix.h and conditionalize on new feature test.
110 lines
3.5 KiB
C
110 lines
3.5 KiB
C
/* XXX Conflicts with John's - not installed.
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*/
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/*-
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* Copyright (c) 1996, 1997
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* HD Associates, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by HD Associates, Inc
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL HD ASSOCIATES OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: aio.h,v 1.1 1998/03/04 10:26:10 dufault Exp $
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*/
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/* aio.h: P1003.1B-1993 Asynchronous I/O */
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#ifndef _AIO_H_
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#define _AIO_H_
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#ifdef _POSIX4_INCLUDE_MAYBES
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#include <sys/types.h>
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#include <signal.h>
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#include <time.h>
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#include <fcntl.h>
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#else
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struct timespec;
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#include <sys/types.h>
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#ifdef KERNEL
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#include <sys/signal.h>
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#else
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#include <signal.h>
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#endif
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#endif
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/* Return values: */
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#define AIO_CANCELED 0x01 /* All operations cancelled */
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#define AIO_NOTCANCELLED 0x02 /* Some not cancelled */
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#define AIO_ALLDONE 0x04 /* None were cancelled */
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/* lio_listio synchronization options */
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#define LIO_WAIT 0x08 /* Suspend until complete */
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#define LIO_NOWAIT 0x10 /* Continue operation */
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/* lio_listio element operations */
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#define LIO_READ 0x20
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#define LIO_WRITE 0x40
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#define LIO_NOP 0x80
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typedef struct aiocb * const aio_listio_ctl;
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typedef const struct aiocb * const caio_listio_ctl;
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struct aiocb {
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int aio_fildes; /* File descriptor */
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off_t aio_offset; /* File offset */
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volatile void * aio_buf; /* Location of buffer */
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size_t aio_nbytes; /* Length of transfer */
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int aio_reqprio; /* Request priority offset */
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struct sigevent aio_sigevent; /* Signal number and value */
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int aio_lio_opcode; /* Operation to be performed */
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};
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#ifndef KERNEL
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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int aio_read __P((struct aiocb *));
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int aio_write __P((struct aiocb *));
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int lio_listio __P((int, aio_listio_ctl [_POSIX_AIO_LISTIO_MAX],
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int, struct sigevent *));
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int aio_error __P((const struct aiocb *));
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ssize_t aio_return __P((struct aiocb *));
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int aio_cancel __P((int, struct aiocb *));
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int aio_suspend __P((caio_listio_ctl [_POSIX_AIO_LISTIO_MAX],
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int, const struct timespec *));
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int aio_fsync __P((int, struct aiocb *));
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__END_DECLS
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#endif /* KERNEL */
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#endif /* _POSIX4_AIO_H_ */
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