| | 1 | /* tattlekey: A one-key UDP keyboard |
| | 2 | * Copyright (C) 2023 Scott Worley <scottworley@scottworley.com> |
| | 3 | * |
| | 4 | * This program is free software: you can redistribute it and/or modify |
| | 5 | * it under the terms of the GNU General Public License as published by |
| | 6 | * the Free Software Foundation, either version 3 of the License, or |
| | 7 | * (at your option) any later version. |
| | 8 | * |
| | 9 | * This program is distributed in the hope that it will be useful, |
| | 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| | 12 | * GNU General Public License for more details. |
| | 13 | * |
| | 14 | * You should have received a copy of the GNU General Public License |
| | 15 | * along with this program. If not, see <https://www.gnu.org/licenses/>. |
| | 16 | */ |
| | 17 | |
| | 18 | #ifndef SENDS_H |
| | 19 | #define SENDS_H |
| | 20 | |
| | 21 | #include "pico/cyw43_arch.h" |
| | 22 | #include "pico/util/pheap.h" |
| | 23 | #include "pico/util/queue.h" |
| | 24 | |
| | 25 | typedef struct { |
| | 26 | uint32_t timestamp; |
| | 27 | u16_t seq; |
| | 28 | u8_t send_count; |
| | 29 | } press_t; |
| | 30 | |
| | 31 | typedef struct { |
| | 32 | /* Queues of various sizes that hold presses. There is one queue for each |
| | 33 | * send_count. */ |
| | 34 | queue_t *presses; |
| | 35 | |
| | 36 | /* Tracks when each queue will be next ready-to-send. Empty queues are not in |
| | 37 | * the heap. */ |
| | 38 | pheap_t *sleeps_heap; |
| | 39 | |
| | 40 | /* The companion-array for the heap. */ |
| | 41 | queue_t **sleeps; |
| | 42 | |
| | 43 | } press_pile_t; |
| | 44 | |
| | 45 | press_pile_t *create_press_pile(); |
| | 46 | |
| | 47 | /* Adds this press to the pile. |
| | 48 | * Copies the contents of `press`. */ |
| | 49 | void add_press(press_pile_t *pp, press_t *press); |
| | 50 | |
| | 51 | /* When do we next need to send something (in seconds since boot)? |
| | 52 | * Returns -1 if there's nothing pending. */ |
| | 53 | int32_t next_scheduled_send(press_pile_t *pp); |
| | 54 | |
| | 55 | /* Find a press ready for resend at or before `now`. |
| | 56 | * Move it out of the press-pile `pp` and into into `press`. |
| | 57 | * Or return false if there is no press due for re-send. */ |
| | 58 | bool get_press_due_for_resend(press_pile_t *pp, uint32_t now, press_t *press); |
| | 59 | |
| | 60 | #endif |
projects / tattlekey / blame_incremental