92 lines
2.7 KiB
C++
92 lines
2.7 KiB
C++
//-----------------------------------------------------------------------------
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// Project : VST SDK
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//
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// Category : Helpers
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// Filename : public.sdk/source/vst/hosting/connectionproxy.cpp
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// Created by : Steinberg, 04/2019
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// Description : VST 3 Plug-in connection class
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//
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//-----------------------------------------------------------------------------
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// This file is part of a Steinberg SDK. It is subject to the license terms
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// in the LICENSE file found in the top-level directory of this distribution
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// and at www.steinberg.net/sdklicenses.
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// No part of the SDK, including this file, may be copied, modified, propagated,
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// or distributed except according to the terms contained in the LICENSE file.
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//-----------------------------------------------------------------------------
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#include "connectionproxy.h"
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namespace Steinberg {
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namespace Vst {
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//------------------------------------------------------------------------
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IMPLEMENT_FUNKNOWN_METHODS (ConnectionProxy, IConnectionPoint, IConnectionPoint::iid)
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//------------------------------------------------------------------------
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ConnectionProxy::ConnectionProxy (IConnectionPoint* srcConnection)
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: srcConnection (srcConnection) // share it
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{
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FUNKNOWN_CTOR
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}
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//------------------------------------------------------------------------
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ConnectionProxy::~ConnectionProxy ()
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{
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FUNKNOWN_DTOR
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}
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//------------------------------------------------------------------------
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tresult PLUGIN_API ConnectionProxy::connect (IConnectionPoint* other)
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{
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if (other == nullptr)
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return kInvalidArgument;
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if (dstConnection)
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return kResultFalse;
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dstConnection = other; // share it
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tresult res = srcConnection->connect (this);
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if (res != kResultTrue)
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dstConnection = nullptr;
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return res;
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}
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//------------------------------------------------------------------------
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tresult PLUGIN_API ConnectionProxy::disconnect (IConnectionPoint* other)
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{
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if (!other)
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return kInvalidArgument;
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if (other == dstConnection)
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{
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if (srcConnection)
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srcConnection->disconnect (this);
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dstConnection = nullptr;
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return kResultTrue;
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}
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return kInvalidArgument;
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}
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//------------------------------------------------------------------------
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tresult PLUGIN_API ConnectionProxy::notify (IMessage* message)
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{
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if (dstConnection)
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{
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// We discard the message if we are not in the UI main thread
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if (threadChecker && threadChecker->test ())
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return dstConnection->notify (message);
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}
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return kResultFalse;
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}
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//------------------------------------------------------------------------
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bool ConnectionProxy::disconnect ()
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{
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return disconnect (dstConnection) == kResultTrue;
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}
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//------------------------------------------------------------------------
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} // Vst
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} // Steinberg
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