103 lines
2.6 KiB
C++
103 lines
2.6 KiB
C++
/*
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* Copyright 2003-2021 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPD_OUTPUT_SNAPCAST_CLIENT_HXX
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#define MPD_OUTPUT_SNAPCAST_CLIENT_HXX
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#include "Chunk.hxx"
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#include "event/BufferedSocket.hxx"
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#include "util/IntrusiveList.hxx"
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#include <chrono>
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#include <cstdint>
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struct SnapcastBase;
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struct SnapcastTime;
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class SnapcastOutput;
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class UniqueSocketDescriptor;
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class SnapcastClient final : BufferedSocket, public IntrusiveListHook
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{
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SnapcastOutput &output;
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/**
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* A queue of #Page objects to be sent to the client.
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*/
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SnapcastChunkQueue chunks;
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uint16_t next_id = 1;
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bool active = false;
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public:
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SnapcastClient(SnapcastOutput &output,
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UniqueSocketDescriptor _fd) noexcept;
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~SnapcastClient() noexcept;
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/**
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* Frees the client and removes it from the server's client list.
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*
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* Caller must lock the mutex.
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*/
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void Close() noexcept;
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void LockClose() noexcept;
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void SendStreamTags(ConstBuffer<void> payload) noexcept;
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/**
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* Caller must lock the mutex.
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*/
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void Push(SnapcastChunkPtr chunk) noexcept;
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/**
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* Caller must lock the mutex.
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*/
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bool IsDrained() const noexcept {
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return chunks.empty();
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}
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/**
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* Caller must lock the mutex.
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*/
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void Cancel() noexcept {
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ClearQueue(chunks);
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}
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private:
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SnapcastChunkPtr LockPopQueue() noexcept;
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bool SendWireChunk(ConstBuffer<void> payload,
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std::chrono::steady_clock::time_point t) noexcept;
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bool SendServerSettings(const SnapcastBase &request) noexcept;
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bool SendCodecHeader(const SnapcastBase &request) noexcept;
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bool SendTime(const SnapcastBase &request_header,
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const SnapcastTime &request_payload) noexcept;
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/* virtual methods from class BufferedSocket */
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void OnSocketReady(unsigned flags) noexcept override;
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InputResult OnSocketInput(void *data, size_t length) noexcept override;
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void OnSocketError(std::exception_ptr ep) noexcept override;
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void OnSocketClosed() noexcept override;
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};
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#endif
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