File: block.h

package info (click to toggle)
yforth 0.2.1-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, buster, jessie, jessie-kfreebsd, sid, stretch
  • size: 396 kB
  • ctags: 788
  • sloc: ansic: 4,426; makefile: 23
file content (91 lines) | stat: -rw-r--r-- 2,750 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
/* yForth? - A Forth interpreter written in ANSI C
 * Copyright (C) 2012 Luca Padovani
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * ------------------------------------------------------------------------
 * Module name:     block.h
 * Abstract:        Block word set header file
 */

#ifdef DECLARE_WORDS
#	ifdef PROTOTYPES
#		undef PROTOTYPES
#	endif
#	undef __BLOCK_H__
#else
#	ifndef PROTOTYPES
#		define PROTOTYPES
#	endif
#endif

#ifndef __BLOCK_H__
#define __BLOCK_H__

#include "yforth.h"
#include "macro.h"

/**************************************************************************/
/* VARIABLES **************************************************************/
/**************************************************************************/

#ifdef PROTOTYPES

struct _block_data {                /* Entry in the table of blocks */
    UCell block_no;                 /* Block number */
    Cell dirty;                     /* Block updated */
};

struct _block_buffer {              /* Simply an array of Char */
	Char buffer[BLOCK_SIZE];
};

extern FILE *block_file;

extern struct _block_data *block_data;
extern struct _block_buffer *block_buffer;

extern UCell current_block;

#endif

variable(UCell, b_l_k,						"blk")

/**************************************************************************/
/* PROTOTYPES *************************************************************/
/**************************************************************************/

code(block,					"block",					0)
code(buffer,				"buffer",					0)
code(flush,					"flush",					0)
code(load,					"load",						0)
code(save_buffers,			"save-buffers",				0)
code(update,				"update",					0)

#ifdef PROTOTYPES

/**************************************************************************/
/* AUXILIARY FUNCTIONS PROTOTYPES *****************************************/
/**************************************************************************/

int search_block(UCell block_no);
int allocate_block(UCell block_no, int load);
void load_block(UCell block_no, int b);
void save_block(int b);
int open_block_file(char *name);
void close_block_file(void);

#endif

#endif