mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-15 12:38:11 +00:00
033c4e9a5b
* Updated style * Updated files * fixed new line * Updated spacing * File fix WIP * Updated to clang 13 * updated comment style * Removed old comment code
119 lines
3.1 KiB
C++
119 lines
3.1 KiB
C++
/*
|
|
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
|
|
*
|
|
* This file is part of PortaPack.
|
|
*
|
|
* 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 2, 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; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef __MESSAGE_QUEUE_H__
|
|
#define __MESSAGE_QUEUE_H__
|
|
|
|
#include <cstdint>
|
|
|
|
#include "message.hpp"
|
|
#include "fifo.hpp"
|
|
|
|
#include <ch.h>
|
|
|
|
class MessageQueue {
|
|
public:
|
|
MessageQueue() = delete;
|
|
MessageQueue(const MessageQueue&) = delete;
|
|
MessageQueue(MessageQueue&&) = delete;
|
|
|
|
MessageQueue(
|
|
uint8_t* const data,
|
|
size_t k)
|
|
: fifo{data, k} {
|
|
chMtxInit(&mutex_write);
|
|
}
|
|
|
|
template <typename T>
|
|
bool push(const T& message) {
|
|
static_assert(sizeof(T) <= Message::MAX_SIZE, "Message::MAX_SIZE too small for message type");
|
|
static_assert(std::is_base_of<Message, T>::value, "type is not based on Message");
|
|
|
|
return push(&message, sizeof(message));
|
|
}
|
|
|
|
template <typename T>
|
|
bool push_and_wait(const T& message) {
|
|
const bool result = push(message);
|
|
if (result) {
|
|
// TODO: More graceful method of waiting for empty? Maybe sleep for a bit?
|
|
while (!is_empty())
|
|
;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
template <typename HandlerFn>
|
|
void handle(HandlerFn handler) {
|
|
std::array<uint8_t, Message::MAX_SIZE> message_buffer;
|
|
while (Message* const message = peek(message_buffer)) {
|
|
handler(message);
|
|
skip();
|
|
}
|
|
}
|
|
|
|
bool is_empty() const {
|
|
return fifo.is_empty();
|
|
}
|
|
|
|
void reset() {
|
|
fifo.reset();
|
|
}
|
|
|
|
private:
|
|
FIFO<uint8_t> fifo;
|
|
Mutex mutex_write{};
|
|
|
|
Message* peek(std::array<uint8_t, Message::MAX_SIZE>& buf) {
|
|
Message* const p = reinterpret_cast<Message*>(buf.data());
|
|
return fifo.peek_r(buf.data(), buf.size()) ? p : nullptr;
|
|
}
|
|
|
|
bool skip() {
|
|
return fifo.skip();
|
|
}
|
|
|
|
Message* pop(std::array<uint8_t, Message::MAX_SIZE>& buf) {
|
|
Message* const p = reinterpret_cast<Message*>(buf.data());
|
|
return fifo.out_r(buf.data(), buf.size()) ? p : nullptr;
|
|
}
|
|
|
|
size_t len() const {
|
|
return fifo.len();
|
|
}
|
|
|
|
bool push(const void* const buf, const size_t len) {
|
|
chMtxLock(&mutex_write);
|
|
const auto result = fifo.in_r(buf, len);
|
|
chMtxUnlock();
|
|
|
|
const bool success = (result == len);
|
|
if (success) {
|
|
signal();
|
|
}
|
|
return success;
|
|
}
|
|
|
|
void signal();
|
|
};
|
|
|
|
#endif /*__MESSAGE_QUEUE_H__*/
|