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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License, Version 1.0 only
      6  * (the "License").  You may not use this file except in compliance
      7  * with the License.
      8  *
      9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  * or http://www.opensolaris.org/os/licensing.
     11  * See the License for the specific language governing permissions
     12  * and limitations under the License.
     13  *
     14  * When distributing Covered Code, include this CDDL HEADER in each
     15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  * If applicable, add the following below this CDDL HEADER, with the
     17  * fields enclosed by brackets "[]" replaced with your own identifying
     18  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  *
     20  * CDDL HEADER END
     21  */
     22 /*
     23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 #ifndef _AIO_H
     28 #define	_AIO_H
     29 
     30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     31 
     32 #include <sys/feature_tests.h>
     33 #include <sys/types.h>
     34 #include <sys/fcntl.h>
     35 #include <sys/siginfo.h>
     36 #include <sys/aiocb.h>
     37 #include <time.h>
     38 
     39 #ifdef	__cplusplus
     40 extern "C" {
     41 #endif
     42 
     43 #if	(_POSIX_C_SOURCE - 0 > 0) && (_POSIX_C_SOURCE - 0 <= 2)
     44 #error	"POSIX Asynchronous I/O is not supported in POSIX.1-1990"
     45 #endif
     46 
     47 /* large file compilation environment setup */
     48 #if !defined(_LP64) && _FILE_OFFSET_BITS == 64
     49 #ifdef __PRAGMA_REDEFINE_EXTNAME
     50 #pragma	redefine_extname	aio_read	aio_read64
     51 #pragma	redefine_extname	aio_write	aio_write64
     52 #pragma	redefine_extname	lio_listio	lio_listio64
     53 #pragma	redefine_extname	aio_error	aio_error64
     54 #pragma	redefine_extname	aio_return	aio_return64
     55 #pragma	redefine_extname	aio_cancel	aio_cancel64
     56 #pragma	redefine_extname	aio_suspend	aio_suspend64
     57 #pragma	redefine_extname	aio_fsync	aio_fsync64
     58 #pragma	redefine_extname	aio_waitn	aio_waitn64
     59 #else
     60 #define	aiocb		aiocb64
     61 #define	aiocb_t		aiocb64_t
     62 #define	aio_read	aio_read64
     63 #define	aio_write	aio_write64
     64 #define	lio_listio	lio_listio64
     65 #define	aio_error	aio_error64
     66 #define	aio_return	aio_return64
     67 #define	aio_cancel	aio_cancel64
     68 #define	aio_suspend	aio_suspend64
     69 #define	aio_fsync	aio_fsync64
     70 #define	aio_waitn	aio_waitn64
     71 #endif
     72 #endif /* !_LP64 && _FILE_OFFSET_BITS == 64 */
     73 
     74 #if defined(_LP64) && defined(_LARGEFILE64_SOURCE)
     75 /*
     76  * In the LP64 compilation environment, map the 64-bit-explicit versions
     77  * back to the generic versions: all i/o operations are already "large file"
     78  */
     79 #ifdef __PRAGMA_REDEFINE_EXTNAME
     80 #pragma	redefine_extname	aio_read64	aio_read
     81 #pragma	redefine_extname	aio_write64	aio_write
     82 #pragma	redefine_extname	lio_listio64	lio_listio
     83 #pragma	redefine_extname	aio_error64	aio_error
     84 #pragma	redefine_extname	aio_return64	aio_return
     85 #pragma	redefine_extname	aio_cancel64	aio_cancel
     86 #pragma	redefine_extname	aio_suspend64	aio_suspend
     87 #pragma	redefine_extname	aio_fsync64	aio_fsync
     88 #pragma	redefine_extname	aio_waitn64	aio_waitn
     89 #else
     90 #define	aiocb64		aiocb
     91 #define	aiocb64_t	aiocb_t
     92 #define	aio_read64	aio_read
     93 #define	aio_write64	aio_write
     94 #define	lio_listio64	lio_listio
     95 #define	aio_error64	aio_error
     96 #define	aio_return64	aio_return
     97 #define	aio_cancel64	aio_cancel
     98 #define	aio_suspend64	aio_suspend
     99 #define	aio_fsync64	aio_fsync
    100 #define	aio_waitn64	aio_waitn
    101 #endif
    102 #endif	/* _LP64 && _LARGEFILE64_SOURCE */
    103 
    104 /*
    105  * function prototypes
    106  */
    107 #if	defined(__STDC__)
    108 extern int	aio_read(aiocb_t *);
    109 extern int	aio_write(aiocb_t *);
    110 extern int	lio_listio(int,
    111 		    aiocb_t *_RESTRICT_KYWD const *_RESTRICT_KYWD,
    112 		    int, struct sigevent *_RESTRICT_KYWD);
    113 extern int	aio_error(const aiocb_t *);
    114 extern ssize_t	aio_return(aiocb_t *);
    115 extern int	aio_cancel(int, aiocb_t *);
    116 extern int	aio_suspend(const aiocb_t *const[], int,
    117 		    const struct timespec *);
    118 extern int	aio_fsync(int, aiocb_t *);
    119 extern int	aio_waitn(aiocb_t *[], uint_t, uint_t *,
    120 		    const struct timespec *);
    121 
    122 
    123 #if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
    124 	!defined(__PRAGMA_REDEFINE_EXTNAME))
    125 extern int	aio_read64(aiocb64_t *);
    126 extern int	aio_write64(aiocb64_t *);
    127 extern int	lio_listio64(int,
    128 			aiocb64_t *_RESTRICT_KYWD const *_RESTRICT_KYWD,
    129 			int, struct sigevent *_RESTRICT_KYWD);
    130 extern int	aio_error64(const aiocb64_t *);
    131 extern ssize_t	aio_return64(aiocb64_t *);
    132 extern int	aio_cancel64(int, aiocb64_t *);
    133 extern int	aio_suspend64(const aiocb64_t *const[], int,
    134 			const struct timespec *);
    135 extern int	aio_fsync64(int, aiocb64_t *);
    136 extern int	aio_waitn64(aiocb64_t *[], uint_t, uint_t *,
    137 		    const struct timespec *);
    138 #endif	/* _LARGEFILE64_SOURCE */
    139 
    140 #else
    141 extern int	aio_read();
    142 extern int	aio_write();
    143 extern int	lio_listio();
    144 extern int	aio_error();
    145 extern ssize_t	aio_return();
    146 extern int	aio_cancel();
    147 extern int	aio_suspend();
    148 extern int	aio_fsync();
    149 extern int	aio_waitn();
    150 
    151 #if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
    152 	!defined(__PRAGMA_REDEFINE_EXTNAME))
    153 extern int	aio_read64();
    154 extern int	aio_write64();
    155 extern int	lio_listio64();
    156 extern int	aio_error64();
    157 extern ssize_t	aio_return64();
    158 extern int	aio_cancel64();
    159 extern int	aio_suspend64();
    160 extern int	aio_fsync64();
    161 extern int	aio_waitn64();
    162 #endif	/* _LARGEFILE64_SOURCE */
    163 
    164 #endif	/* __STDC__ */
    165 
    166 #ifdef	__cplusplus
    167 }
    168 #endif
    169 
    170 #endif	/* _AIO_H */
    171