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op-pedal/src/Worker.hpp
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2022-03-02 13:59:58 -05:00

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// Copyright (c) 2022 Robin Davies
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#pragma once
#include <lilv/lilv.h>
#include "lv2.h"
#include "lv2/atom.lv2/atom.h"
#include "lv2/atom.lv2/util.h"
#include "lv2.h"
#include "lv2/log.lv2/log.h"
#include "lv2/log.lv2/logger.h"
#include "lv2/midi.lv2/midi.h"
#include "lv2/urid.lv2/urid.h"
#include "lv2/atom.lv2/atom.h"
#include "lv2/worker.lv2/worker.h"
#include <map>
#include <string>
#include <mutex>
#include <thread>
#include "RingBuffer.hpp"
namespace pipedal {
class Worker {
private:
LilvInstance*lilvInstance;
const LV2_Worker_Interface*workerInterface;
sem_t requestSemaphore;
bool exiting = false;
RingBuffer<false,true> requestRingBuffer;
RingBuffer<true,false> responseRingBuffer;
char *responseBuffer;
std::thread* pThread = nullptr;
void ThreadProc();
void StartWorkerThread();
void StopWorkerThread();
static LV2_Worker_Status worker_respond_fn(LV2_Worker_Respond_Handle handle, uint32_t size, const void* data);
LV2_Worker_Status WorkerResponse(uint32_t size,const void*data);
public:
Worker(LilvInstance *instance, const LV2_Worker_Interface *iface);
~Worker();
LV2_Worker_Status ScheduleWork(
uint32_t size,
const void *data);
void EmitResponses();
};
}