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/*
* Copyright 2003-2019 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "Item.hxx"
#include "Lease.hxx"
#include <assert.h>
InputCacheItem::InputCacheItem(InputStreamPtr _input) noexcept
:BufferingInputStream(std::move(_input)),
uri(GetInput().GetURI())
{
}
InputCacheItem::~InputCacheItem() noexcept
{
assert(leases.empty());
}
void
InputCacheItem::AddLease(InputCacheLease &lease) noexcept
{
const std::lock_guard<Mutex> lock(mutex);
leases.push_back(lease);
}
void
InputCacheItem::RemoveLease(InputCacheLease &lease) noexcept
{
const std::lock_guard<Mutex> lock(mutex);
auto i = leases.iterator_to(lease);
if (i == next_lease)
++next_lease;
leases.erase(i);
// TODO: ensure that OnBufferAvailable() isn't currently running
}
void
InputCacheItem::OnBufferAvailable() noexcept
{
for (auto i = leases.begin(); i != leases.end(); i = next_lease) {
next_lease = std::next(i);
i->OnInputCacheAvailable();
}
}
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