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prog_ops.h revision 1.2 
      1 /*      $NetBSD: prog_ops.h,v 1.2 2024/06/07 09:57:09 rin Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2010 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _PROG_OPS_H_
     30 #define _PROG_OPS_H_
     31 
     32 #include <sys/types.h>
     33 #include <sys/event.h>
     34 #include <sys/time.h>
     35 
     36 #ifndef CRUNCHOPS
     37 
     38 struct prog_ops {
     39 	int (*op_init)(void);
     40 
     41 	int (*op_open)(const char *, int, ...);
     42 	int (*op_close)(int);
     43 	ssize_t (*op_read)(int, void *, size_t);
     44 	int (*op_fcntl)(int, int, ...);
     45 	int (*op_ioctl)(int, unsigned long, ...);
     46 	int (*op_kqueue)(void);
     47 	int (*op_kevent)(int, const struct kevent *, size_t, struct kevent *,
     48 			 size_t, const struct timespec *);
     49 };
     50 extern const struct prog_ops prog_ops;
     51 
     52 #define prog_init prog_ops.op_init
     53 #define prog_open prog_ops.op_open
     54 #define prog_close prog_ops.op_close
     55 #define prog_read prog_ops.op_read
     56 #define prog_kevent prog_ops.op_kevent
     57 #define prog_ioctl prog_ops.op_ioctl
     58 #define prog_fcntl prog_ops.op_fcntl
     59 #define prog_kqueue prog_ops.op_kqueue
     60 
     61 #else
     62 
     63 #define prog_init ((int (*)(void))NULL)
     64 #define prog_open open
     65 #define prog_close close
     66 #define prog_read read
     67 #define prog_kevent kevent
     68 #define prog_ioctl ioctl
     69 #define prog_fcntl fcntl
     70 #define prog_kqueue kqueue
     71 
     72 #endif /* CRUNCHOPS */
     73 
     74 #endif /* _PROG_OPS_H_ */
     75