Robin E. R. Davies
112 lines
3.4 KiB
C++
112 lines
3.4 KiB
C++
// Copyright (c) 2025 Robin Davies
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of
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// this software and associated documentation files (the "Software"), to deal in
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// the Software without restriction, including without limitation the rights to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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// the Software, and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#pragma once
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#include <lilv/lilv.h>
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//#include "lv2.h"
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#include "lv2/atom/atom.h"
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#include "lv2/atom/util.h"
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#include "lv2/log/log.h"
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#include "lv2/log/logger.h"
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#include "lv2/midi/midi.h"
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#include "lv2/urid/urid.h"
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#include "lv2/atom/atom.h"
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#include "lv2/worker/worker.h"
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#include "condition_variable"
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#include <atomic>
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#include <map>
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#include <string>
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#include <mutex>
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#include <thread>
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#include "RingBuffer.hpp"
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#include <memory>
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#include "inverting_mutex.hpp"
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namespace pipedal {
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class Worker;
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class HostWorkerThread {
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public:
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HostWorkerThread();
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~HostWorkerThread();
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bool StartThread();
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void Close();
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bool Closed() const { return closed || pThread == nullptr; }
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LV2_Worker_Status ScheduleWork(Worker*worker, size_t size, const void*data);
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private:
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LV2_Worker_Status ScheduleWorkNoLock(Worker*worker, size_t size, const void*data);
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std::atomic<bool> closed = false;
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std::unique_ptr<std::thread> pThread;
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void ThreadProc() noexcept;
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RingBuffer<false,true> requestRingBuffer;
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bool exiting = false;
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inverting_mutex submitMutex;
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std::vector<uint8_t> dataBuffer;
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};
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class Worker {
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private:
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std::shared_ptr<HostWorkerThread> pHostWorker = nullptr;
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LilvInstance*lilvInstance;
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const LV2_Worker_Interface*workerInterface;
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std::atomic<bool> closed = false;
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std::atomic<bool> exiting = false;
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RingBuffer<true,false> responseRingBuffer;
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std::vector<uint8_t> responseBuffer;
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static LV2_Worker_Status worker_respond_fn(LV2_Worker_Respond_Handle handle, uint32_t size, const void* data);
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LV2_Worker_Status WorkerRespond(uint32_t size,const void*data);
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inverting_mutex outstandingRequestMutex;
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std::condition_variable cvOutstandingRequests;
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int64_t outstandingRequests = 0;
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int64_t outstandingResponses = 0;
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void WaitForAllResponses();
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public:
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Worker(const std::shared_ptr<HostWorkerThread>& pHostWorker,LilvInstance *instance, const LV2_Worker_Interface *iface);
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~Worker();
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void Close();
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LV2_Worker_Status ScheduleWork(
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uint32_t size,
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const void *data);
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void RunBackgroundTask(size_t size, uint8_t*data);
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bool EmitResponses();
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};
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} |