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 (c) 1999-2001 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #ifndef _MDB_IO_IMPL_H 28 #define _MDB_IO_IMPL_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <mdb/mdb_io.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 #ifdef _MDB 39 40 typedef struct mdb_io_ops { 41 ssize_t (*io_read)(mdb_io_t *, void *, size_t); 42 ssize_t (*io_write)(mdb_io_t *, const void *, size_t); 43 off64_t (*io_seek)(mdb_io_t *, off64_t, int); 44 int (*io_ctl)(mdb_io_t *, int, void *); 45 void (*io_close)(mdb_io_t *); 46 const char *(*io_name)(mdb_io_t *); 47 void (*io_link)(mdb_io_t *, mdb_iob_t *); 48 void (*io_unlink)(mdb_io_t *, mdb_iob_t *); 49 int (*io_setattr)(mdb_io_t *, int, uint_t); 50 void (*io_suspend)(mdb_io_t *); 51 void (*io_resume)(mdb_io_t *); 52 } mdb_io_ops_t; 53 54 #define IOP_READ(io, buf, len) ((io)->io_ops->io_read((io), (buf), (len))) 55 #define IOP_WRITE(io, buf, len) ((io)->io_ops->io_write((io), (buf), (len))) 56 #define IOP_SEEK(io, off, whence) ((io)->io_ops->io_seek((io), (off), (whence))) 57 #define IOP_CTL(io, req, arg) ((io)->io_ops->io_ctl((io), (req), (arg))) 58 #define IOP_CLOSE(io) ((io)->io_ops->io_close((io))) 59 #define IOP_NAME(io) ((io)->io_ops->io_name((io))) 60 #define IOP_LINK(io, iob) ((io)->io_ops->io_link((io), (iob))) 61 #define IOP_UNLINK(io, iob) ((io)->io_ops->io_unlink((io), (iob))) 62 #define IOP_SETATTR(io, r, a) ((io)->io_ops->io_setattr((io), (r), (a))) 63 #define IOP_SUSPEND(io) ((io)->io_ops->io_suspend((io))) 64 #define IOP_RESUME(io) ((io)->io_ops->io_resume((io))) 65 66 #define IOPF_READ(io) \ 67 ((ssize_t (*)(mdb_io_t *, void *, size_t))(io)->io_ops->io_read) 68 69 #define IOPF_WRITE(io) \ 70 ((ssize_t (*)(mdb_io_t *, void *, size_t))(io)->io_ops->io_write) 71 72 #define ATT_STANDOUT 0x01 /* Standout mode */ 73 #define ATT_UNDERLINE 0x02 /* Underline mode */ 74 #define ATT_REVERSE 0x04 /* Reverse video mode */ 75 #define ATT_BOLD 0x08 /* Bold text mode */ 76 #define ATT_DIM 0x10 /* Dim text mode */ 77 #define ATT_ALTCHARSET 0x20 /* Alternate character set mode */ 78 79 #define ATT_ALL 0x3f /* Mask of all valid attributes */ 80 81 #define ATT_OFF 0 /* Turn attributes off */ 82 #define ATT_ON 1 /* Turn attributes on */ 83 84 struct mdb_io { 85 const mdb_io_ops_t *io_ops; /* I/O type-specific operations */ 86 void *io_data; /* I/O type-specific data pointer */ 87 mdb_io_t *io_next; /* Link to next i/o object on stack */ 88 size_t io_refcnt; /* Reference count */ 89 }; 90 91 struct mdb_iob { 92 char *iob_buf; /* Input/output buffer */ 93 size_t iob_bufsiz; /* Size of iob_buf in bytes */ 94 char *iob_bufp; /* Current buffer location */ 95 size_t iob_nbytes; /* Number of bytes in io_buf */ 96 size_t iob_nlines; /* Lines output on current page */ 97 size_t iob_lineno; /* Storage for saved yylineno */ 98 size_t iob_rows; /* Terminal height */ 99 size_t iob_cols; /* Terminal width */ 100 size_t iob_tabstop; /* Tab stop width */ 101 size_t iob_margin; /* Margin width */ 102 uint_t iob_flags; /* Flags (see <mdb/mdb_io.h>) */ 103 mdb_io_t *iob_iop; /* I/o implementation pointer */ 104 mdb_io_t *iob_pgp; /* Pager i/o implementation pointer */ 105 mdb_iob_t *iob_next; /* Stack next pointer */ 106 }; 107 108 /* 109 * Stub functions for i/o backend implementors: these stubs either act as 110 * pass-through no-ops or return ENOTSUP as appropriate. 111 */ 112 extern ssize_t no_io_read(mdb_io_t *, void *, size_t); 113 extern ssize_t no_io_write(mdb_io_t *, const void *, size_t); 114 extern off64_t no_io_seek(mdb_io_t *, off64_t, int); 115 extern int no_io_ctl(mdb_io_t *, int, void *); 116 extern void no_io_close(mdb_io_t *); 117 extern const char *no_io_name(mdb_io_t *); 118 extern void no_io_link(mdb_io_t *, mdb_iob_t *); 119 extern void no_io_unlink(mdb_io_t *, mdb_iob_t *); 120 extern int no_io_setattr(mdb_io_t *, int, uint_t); 121 extern void no_io_suspend(mdb_io_t *); 122 extern void no_io_resume(mdb_io_t *); 123 124 #endif /* _MDB */ 125 126 #ifdef __cplusplus 127 } 128 #endif 129 130 #endif /* _MDB_IO_IMPL_H */ 131