1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate  * Copyright (c) 1999-2001 by Sun Microsystems, Inc.
24*7c478bd9Sstevel@tonic-gate  * All rights reserved.
25*7c478bd9Sstevel@tonic-gate  */
26*7c478bd9Sstevel@tonic-gate 
27*7c478bd9Sstevel@tonic-gate #ifndef	_MDB_IO_IMPL_H
28*7c478bd9Sstevel@tonic-gate #define	_MDB_IO_IMPL_H
29*7c478bd9Sstevel@tonic-gate 
30*7c478bd9Sstevel@tonic-gate #include <mdb/mdb_io.h>
31*7c478bd9Sstevel@tonic-gate 
32*7c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
33*7c478bd9Sstevel@tonic-gate extern "C" {
34*7c478bd9Sstevel@tonic-gate #endif
35*7c478bd9Sstevel@tonic-gate 
36*7c478bd9Sstevel@tonic-gate #ifdef _MDB
37*7c478bd9Sstevel@tonic-gate 
38*7c478bd9Sstevel@tonic-gate typedef struct mdb_io_ops {
39*7c478bd9Sstevel@tonic-gate 	ssize_t (*io_read)(mdb_io_t *, void *, size_t);
40*7c478bd9Sstevel@tonic-gate 	ssize_t (*io_write)(mdb_io_t *, const void *, size_t);
41*7c478bd9Sstevel@tonic-gate 	off64_t (*io_seek)(mdb_io_t *, off64_t, int);
42*7c478bd9Sstevel@tonic-gate 	int (*io_ctl)(mdb_io_t *, int, void *);
43*7c478bd9Sstevel@tonic-gate 	void (*io_close)(mdb_io_t *);
44*7c478bd9Sstevel@tonic-gate 	const char *(*io_name)(mdb_io_t *);
45*7c478bd9Sstevel@tonic-gate 	void (*io_link)(mdb_io_t *, mdb_iob_t *);
46*7c478bd9Sstevel@tonic-gate 	void (*io_unlink)(mdb_io_t *, mdb_iob_t *);
47*7c478bd9Sstevel@tonic-gate 	int (*io_setattr)(mdb_io_t *, int, uint_t);
48*7c478bd9Sstevel@tonic-gate 	void (*io_suspend)(mdb_io_t *);
49*7c478bd9Sstevel@tonic-gate 	void (*io_resume)(mdb_io_t *);
50*7c478bd9Sstevel@tonic-gate } mdb_io_ops_t;
51*7c478bd9Sstevel@tonic-gate 
52*7c478bd9Sstevel@tonic-gate #define	IOP_READ(io, buf, len) ((io)->io_ops->io_read((io), (buf), (len)))
53*7c478bd9Sstevel@tonic-gate #define	IOP_WRITE(io, buf, len) ((io)->io_ops->io_write((io), (buf), (len)))
54*7c478bd9Sstevel@tonic-gate #define	IOP_SEEK(io, off, whence) ((io)->io_ops->io_seek((io), (off), (whence)))
55*7c478bd9Sstevel@tonic-gate #define	IOP_CTL(io, req, arg) ((io)->io_ops->io_ctl((io), (req), (arg)))
56*7c478bd9Sstevel@tonic-gate #define	IOP_CLOSE(io) ((io)->io_ops->io_close((io)))
57*7c478bd9Sstevel@tonic-gate #define	IOP_NAME(io) ((io)->io_ops->io_name((io)))
58*7c478bd9Sstevel@tonic-gate #define	IOP_LINK(io, iob) ((io)->io_ops->io_link((io), (iob)))
59*7c478bd9Sstevel@tonic-gate #define	IOP_UNLINK(io, iob) ((io)->io_ops->io_unlink((io), (iob)))
60*7c478bd9Sstevel@tonic-gate #define	IOP_SETATTR(io, r, a) ((io)->io_ops->io_setattr((io), (r), (a)))
61*7c478bd9Sstevel@tonic-gate #define	IOP_SUSPEND(io) ((io)->io_ops->io_suspend((io)))
62*7c478bd9Sstevel@tonic-gate #define	IOP_RESUME(io) ((io)->io_ops->io_resume((io)))
63*7c478bd9Sstevel@tonic-gate 
64*7c478bd9Sstevel@tonic-gate #define	IOPF_READ(io)	\
65*7c478bd9Sstevel@tonic-gate 	((ssize_t (*)(mdb_io_t *, void *, size_t))(io)->io_ops->io_read)
66*7c478bd9Sstevel@tonic-gate 
67*7c478bd9Sstevel@tonic-gate #define	IOPF_WRITE(io)	\
68*7c478bd9Sstevel@tonic-gate 	((ssize_t (*)(mdb_io_t *, void *, size_t))(io)->io_ops->io_write)
69*7c478bd9Sstevel@tonic-gate 
70*7c478bd9Sstevel@tonic-gate #define	ATT_STANDOUT	0x01		/* Standout mode */
71*7c478bd9Sstevel@tonic-gate #define	ATT_UNDERLINE	0x02		/* Underline mode */
72*7c478bd9Sstevel@tonic-gate #define	ATT_REVERSE	0x04		/* Reverse video mode */
73*7c478bd9Sstevel@tonic-gate #define	ATT_BOLD	0x08		/* Bold text mode */
74*7c478bd9Sstevel@tonic-gate #define	ATT_DIM		0x10		/* Dim text mode */
75*7c478bd9Sstevel@tonic-gate #define	ATT_ALTCHARSET	0x20		/* Alternate character set mode */
76*7c478bd9Sstevel@tonic-gate 
77*7c478bd9Sstevel@tonic-gate #define	ATT_ALL		0x3f		/* Mask of all valid attributes */
78*7c478bd9Sstevel@tonic-gate 
79*7c478bd9Sstevel@tonic-gate #define	ATT_OFF		0		/* Turn attributes off */
80*7c478bd9Sstevel@tonic-gate #define	ATT_ON		1		/* Turn attributes on */
81*7c478bd9Sstevel@tonic-gate 
82*7c478bd9Sstevel@tonic-gate struct mdb_io {
83*7c478bd9Sstevel@tonic-gate 	const mdb_io_ops_t *io_ops;	/* I/O type-specific operations */
84*7c478bd9Sstevel@tonic-gate 	void *io_data;			/* I/O type-specific data pointer */
85*7c478bd9Sstevel@tonic-gate 	mdb_io_t *io_next;		/* Link to next i/o object on stack */
86*7c478bd9Sstevel@tonic-gate 	size_t io_refcnt;		/* Reference count */
87*7c478bd9Sstevel@tonic-gate };
88*7c478bd9Sstevel@tonic-gate 
89*7c478bd9Sstevel@tonic-gate struct mdb_iob {
90*7c478bd9Sstevel@tonic-gate 	char *iob_buf;			/* Input/output buffer */
91*7c478bd9Sstevel@tonic-gate 	size_t iob_bufsiz;		/* Size of iob_buf in bytes */
92*7c478bd9Sstevel@tonic-gate 	char *iob_bufp;			/* Current buffer location */
93*7c478bd9Sstevel@tonic-gate 	size_t iob_nbytes;		/* Number of bytes in io_buf */
94*7c478bd9Sstevel@tonic-gate 	size_t iob_nlines;		/* Lines output on current page */
95*7c478bd9Sstevel@tonic-gate 	size_t iob_lineno;		/* Storage for saved yylineno */
96*7c478bd9Sstevel@tonic-gate 	size_t iob_rows;		/* Terminal height */
97*7c478bd9Sstevel@tonic-gate 	size_t iob_cols;		/* Terminal width */
98*7c478bd9Sstevel@tonic-gate 	size_t iob_tabstop;		/* Tab stop width */
99*7c478bd9Sstevel@tonic-gate 	size_t iob_margin;		/* Margin width */
100*7c478bd9Sstevel@tonic-gate 	uint_t iob_flags;		/* Flags (see <mdb/mdb_io.h>) */
101*7c478bd9Sstevel@tonic-gate 	mdb_io_t *iob_iop;		/* I/o implementation pointer */
102*7c478bd9Sstevel@tonic-gate 	mdb_io_t *iob_pgp;		/* Pager i/o implementation pointer */
103*7c478bd9Sstevel@tonic-gate 	mdb_iob_t *iob_next;		/* Stack next pointer */
104*7c478bd9Sstevel@tonic-gate };
105*7c478bd9Sstevel@tonic-gate 
106*7c478bd9Sstevel@tonic-gate /*
107*7c478bd9Sstevel@tonic-gate  * Stub functions for i/o backend implementors: these stubs either act as
108*7c478bd9Sstevel@tonic-gate  * pass-through no-ops or return ENOTSUP as appropriate.
109*7c478bd9Sstevel@tonic-gate  */
110*7c478bd9Sstevel@tonic-gate extern ssize_t no_io_read(mdb_io_t *, void *, size_t);
111*7c478bd9Sstevel@tonic-gate extern ssize_t no_io_write(mdb_io_t *, const void *, size_t);
112*7c478bd9Sstevel@tonic-gate extern off64_t no_io_seek(mdb_io_t *, off64_t, int);
113*7c478bd9Sstevel@tonic-gate extern int no_io_ctl(mdb_io_t *, int, void *);
114*7c478bd9Sstevel@tonic-gate extern void no_io_close(mdb_io_t *);
115*7c478bd9Sstevel@tonic-gate extern const char *no_io_name(mdb_io_t *);
116*7c478bd9Sstevel@tonic-gate extern void no_io_link(mdb_io_t *, mdb_iob_t *);
117*7c478bd9Sstevel@tonic-gate extern void no_io_unlink(mdb_io_t *, mdb_iob_t *);
118*7c478bd9Sstevel@tonic-gate extern int no_io_setattr(mdb_io_t *, int, uint_t);
119*7c478bd9Sstevel@tonic-gate extern void no_io_suspend(mdb_io_t *);
120*7c478bd9Sstevel@tonic-gate extern void no_io_resume(mdb_io_t *);
121*7c478bd9Sstevel@tonic-gate 
122*7c478bd9Sstevel@tonic-gate #endif	/* _MDB */
123*7c478bd9Sstevel@tonic-gate 
124*7c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
125*7c478bd9Sstevel@tonic-gate }
126*7c478bd9Sstevel@tonic-gate #endif
127*7c478bd9Sstevel@tonic-gate 
128*7c478bd9Sstevel@tonic-gate #endif	/* _MDB_IO_IMPL_H */
129