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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 (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 
     22 /*
     23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 #pragma ident	"@(#)daio_async.h	1.8	09/05/26 SMI"
     28 
     29 #ifndef _DAIO_ASYNC_H
     30 #define	_DAIO_ASYNC_H
     31 
     32 #include <diskomizer/daio.h>
     33 
     34 #ifdef	__cplusplus
     35 extern "C" {
     36 #endif
     37 
     38 extern int daio_async_cancel(daio_result_t *x);
     39 extern data_checker_t daio_async_get_checker(void);
     40 extern daio_result_t *daio_async_wait(const struct timeval *timeout);
     41 extern hrtime_t daio_async_end_time(daio_result_t *resultp);
     42 extern hrtime_t daio_async_start_time(daio_result_t *resultp);
     43 extern daio_status_t daio_async_status(daio_result_t *resultp);
     44 extern daio_result_t *daio_async_wait(const struct timeval *timeout);
     45 extern void * daio_async_init(int count);
     46 extern void daio_async_init_checker(const char *checker,
     47 	off64_t max_block_size);
     48 extern void  daio_async_fini(void *);
     49 extern ssize_t daio_async_pread(int fildes, uchar_t *bufp, size_t bufs,
     50 		off_t off, struct daio_id *id);
     51 extern ssize_t daio_async_pwrite(int fildes, const uchar_t *bufp, size_t bufs,
     52 		off_t off, struct daio_id *id);
     53 
     54 
     55 typedef enum {
     56 	IS_READ = 0,
     57 	IS_WRITE = 1
     58 } read_or_write_t;
     59 
     60 extern int daio_async_rw(int fildes, uchar_t *bufp, int  bufs, off_t
     61 	offset, daio_result_t *resultp, struct daio_id *id,
     62 	ssize_t (*rw)(int fildes, void  *buf,  size_t  nbyte,  off_t offset),
     63 	read_or_write_t is_write);
     64 
     65 #ifdef	__cplusplus
     66 }
     67 #endif
     68 
     69 #endif /* _DAIO_ASYNC_H */
     70