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Diffstat (limited to '')
-rw-r--r-- | src/db/update/UpdateQueue.cxx | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/db/update/UpdateQueue.cxx b/src/db/update/UpdateQueue.cxx new file mode 100644 index 000000000..a6002f854 --- /dev/null +++ b/src/db/update/UpdateQueue.cxx @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2003-2014 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 "config.h" +#include "UpdateQueue.hxx" + +#include <queue> +#include <list> + +static constexpr unsigned MAX_UPDATE_QUEUE_SIZE = 32; + +static std::queue<UpdateQueueItem, std::list<UpdateQueueItem>> update_queue; + +bool +update_queue_push(const char *path, bool discard, unsigned id) +{ + if (update_queue.size() >= MAX_UPDATE_QUEUE_SIZE) + return false; + + update_queue.emplace(path, discard, id); + return true; +} + +UpdateQueueItem +update_queue_shift() +{ + if (update_queue.empty()) + return UpdateQueueItem(); + + auto i = std::move(update_queue.front()); + update_queue.pop(); + return i; +} |