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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	"@(#)async.h	1.6	09/05/26 SMI"
     28 
     29 #ifndef _ASYNC_H
     30 #define	_ASYNC_H
     31 
     32 #include <pthread.h>
     33 
     34 #ifdef	__cplusplus
     35 extern "C" {
     36 #endif
     37 
     38 struct async_work {
     39 	union {
     40 		struct {
     41 			void *(*func)(void *arg);
     42 			int (*cancel)(void *arg, int);
     43 		} funcs;
     44 		struct async_work *next; /* used internally only */
     45 	} u;
     46 	void *arg;
     47 	void *result;
     48 	int flags;
     49 };
     50 
     51 extern void * async_queue_request(struct async_work *work);
     52 extern struct async_work *async_queue_wait(
     53 		void *handle, const struct timespec *abstime,
     54 		int flags);
     55 extern int async_cancel_request(struct async_work *handle, int flags);
     56 
     57 #define	ASYNCWORK_COMPLETE (1 << 30)
     58 
     59 #ifdef	__cplusplus
     60 }
     61 #endif
     62 
     63 #endif /* _ASYNC_H */
     64