58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
/*
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* Copyright 2003-2020 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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#include "SharedPipeConsumer.hxx"
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#include "MusicChunk.hxx"
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#include "MusicPipe.hxx"
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const MusicChunk *
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SharedPipeConsumer::Get() noexcept
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{
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if (chunk != nullptr) {
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if (!consumed)
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return chunk;
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if (chunk->next == nullptr)
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return nullptr;
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consumed = false;
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return chunk = chunk->next.get();
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} else {
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/* get the first chunk from the pipe */
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consumed = false;
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return chunk = pipe->Peek();
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}
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}
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bool
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SharedPipeConsumer::IsConsumed(const MusicChunk &_chunk) const noexcept
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{
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if (chunk == nullptr)
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return false;
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assert(&_chunk == chunk || pipe->Contains(chunk));
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if (&_chunk != chunk) {
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assert(_chunk.next != nullptr);
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return true;
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}
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return consumed && _chunk.next == nullptr;
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}
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