mirror of
https://github.com/Keychron/qmk_firmware.git
synced 2024-11-24 17:37:40 +06:00
56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
// this is a single reader [maybe multiple writer?] byte queue
|
|
// Copyright 2008 Alex Norman
|
|
// writen by Alex Norman
|
|
//
|
|
// This file is part of avr-bytequeue.
|
|
//
|
|
// avr-bytequeue 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.
|
|
//
|
|
// avr-bytequeue 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 avr-bytequeue. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
#pragma once
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <inttypes.h>
|
|
#include <stdbool.h>
|
|
|
|
typedef uint8_t byteQueueIndex_t;
|
|
|
|
typedef struct {
|
|
byteQueueIndex_t start;
|
|
byteQueueIndex_t end;
|
|
byteQueueIndex_t length;
|
|
uint8_t* data;
|
|
} byteQueue_t;
|
|
|
|
// you must have a queue, an array of data which the queue will use, and the length of that array
|
|
void bytequeue_init(byteQueue_t* queue, uint8_t* dataArray, byteQueueIndex_t arrayLen);
|
|
|
|
// add an item to the queue, returns false if the queue is full
|
|
bool bytequeue_enqueue(byteQueue_t* queue, uint8_t item);
|
|
|
|
// get the length of the queue
|
|
byteQueueIndex_t bytequeue_length(byteQueue_t* queue);
|
|
|
|
// this grabs data at the index given [starting at queue->start]
|
|
uint8_t bytequeue_get(byteQueue_t* queue, byteQueueIndex_t index);
|
|
|
|
// update the index in the queue to reflect data that has been dealt with
|
|
void bytequeue_remove(byteQueue_t* queue, byteQueueIndex_t numToRemove);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|