PluginHost.h

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/**********************************************************************
 
  Audacity: A Digital Audio Editor
 
  @file PluginHost.h
 
  @author Vitaly Sverchinsky
 
  Part of lib-module-manager library
 
**********************************************************************/
 
#pragma once
 
#include "IPCChannel.h"
#include <memory>
#include <mutex>
#include <optional>
#include <condition_variable>
#include <wx/string.h>
 
#include "IPCClient.h"
#include "PluginIPCUtils.h"
 
class MODULE_MANAGER_API PluginHost final : public IPCChannelStatusCallback
{
   static constexpr auto HostArgument =  "--host";
 
   std::unique_ptr<IPCClient> mClient;
   IPCChannel* mChannel{nullptr};
   detail::InputMessageReader mInputMessageReader;
   std::mutex mSync;
   std::condition_variable mRequestCondition;
   std::optional<wxString> mRequest;
 
   bool mRunning{true};
 
   void Stop() noexcept;
 
public:
   static bool Start(int connectPort);
 
   static bool IsHostProcess();
 
   explicit PluginHost(int connectPort);
 
   void OnConnect(IPCChannel& channel) noexcept override;
   void OnDisconnect() noexcept override;
   void OnConnectionError() noexcept override;
   void OnDataAvailable(const void* data, size_t size) noexcept override;
 
   bool Serve();
};