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60757de2f2
The old API only allowed cancelling property "get" inquiries and subscription updates. However, there are use-cases for cancelling other requests too. e.g. switching between views in a JUCE app might mean that it's no longer necessary to subscribe to a particular property. Cancelling subscriptions ends up being quite involved. Different handling is needed depending on whether the subscription is cancelled before or after the responder replies to the initial request. In addition, the responder may ask the initiator to retry a subscription begin request.
55 lines
2.1 KiB
C++
55 lines
2.1 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2022 - Raw Material Software Limited
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 7 End-User License
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Agreement and JUCE Privacy Policy.
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End User License Agreement: www.juce.com/juce-7-licence
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Privacy Policy: www.juce.com/juce-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce::midi_ci::detail
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{
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struct PropertyHostUtils
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{
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PropertyHostUtils() = delete;
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static void send (BufferOutput& output,
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uint8_t group,
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std::byte subID2,
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MUID targetMuid,
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std::byte requestID,
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Span<const std::byte> header,
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Span<const std::byte> body,
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int chunkSize)
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{
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MemoryInputStream stream (body.data(), body.size(), false);
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const detail::PropertyDataMessageChunker chunker { output.getOutputBuffer(),
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std::min (chunkSize, 1 << 16),
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subID2,
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requestID,
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header,
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output.getMuid(),
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targetMuid,
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stream };
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std::for_each (chunker.begin(), chunker.end(), [&] (auto) { output.send (group); });
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}
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};
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} // namespace juce::midi_ci::detail
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