Rev 1451 | Rev 1560 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1339 | cejka | 1 | /* |
| 2 | * Copyright (C) 2006 Josef Cejka |
||
| 3 | * All rights reserved. |
||
| 4 | * |
||
| 5 | * Redistribution and use in source and binary forms, with or without |
||
| 6 | * modification, are permitted provided that the following conditions |
||
| 7 | * are met: |
||
| 8 | * |
||
| 9 | * - Redistributions of source code must retain the above copyright |
||
| 10 | * notice, this list of conditions and the following disclaimer. |
||
| 11 | * - Redistributions in binary form must reproduce the above copyright |
||
| 12 | * notice, this list of conditions and the following disclaimer in the |
||
| 13 | * documentation and/or other materials provided with the distribution. |
||
| 14 | * - The name of the author may not be used to endorse or promote products |
||
| 15 | * derived from this software without specific prior written permission. |
||
| 16 | * |
||
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 27 | */ |
||
| 28 | |||
| 29 | #ifndef __KEY_BUFFER_H__ |
||
| 30 | #define __KEY_BUFFER_H__ |
||
| 31 | |||
| 32 | #include <types.h> |
||
| 33 | |||
| 1476 | cejka | 34 | /** Size of buffer for pressed keys */ |
| 35 | #define KEYBUFFER_SIZE 128 |
||
| 1339 | cejka | 36 | |
| 1451 | cejka | 37 | typedef struct { |
| 38 | char fifo[KEYBUFFER_SIZE]; |
||
| 39 | unsigned long head; |
||
| 40 | unsigned long tail; |
||
| 41 | unsigned long items; |
||
| 42 | } keybuffer_t; |
||
| 43 | |||
| 44 | void keybuffer_free(keybuffer_t *keybuffer); |
||
| 45 | void keybuffer_init(keybuffer_t *keybuffer); |
||
| 46 | int keybuffer_available(keybuffer_t *keybuffer); |
||
| 47 | int keybuffer_empty(keybuffer_t *keybuffer); |
||
| 48 | void keybuffer_push(keybuffer_t *keybuffer, char key); |
||
| 49 | int keybuffer_pop(keybuffer_t *keybuffer, char *c); |
||
| 50 | |||
| 1339 | cejka | 51 | #endif |
| 52 |