Files
scylladb/service/priority_manager.hh
Avi Kivity ebaeefa02b Merge seatar upstream (seastar namespace)
- introcduced "seastarx.hh" header, which does a "using namespace seastar";
 - 'net' namespace conflicts with seastar::net, renamed to 'netw'.
 - 'transport' namespace conflicts with seastar::transport, renamed to
   cql_transport.
 - "logger" global variables now conflict with logger global type, renamed
   to xlogger.
 - other minor changes
2017-05-21 12:26:15 +03:00

109 lines
3.2 KiB
C++

/*
* Copyright 2016 ScyllaDB
*/
/*
* This file is part of Scylla.
*
* Scylla is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Scylla 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 Scylla. If not, see <http://www.gnu.org/licenses/>.
*/
#include <seastar/core/future.hh>
#include <seastar/core/distributed.hh>
#include <seastar/core/reactor.hh>
#include "seastarx.hh"
namespace service {
class priority_manager {
::io_priority_class _commitlog_priority;
::io_priority_class _mt_flush_priority;
::io_priority_class _stream_read_priority;
::io_priority_class _stream_write_priority;
::io_priority_class _sstable_query_read;
::io_priority_class _compaction_priority;
public:
const ::io_priority_class&
commitlog_priority() {
return _commitlog_priority;
}
const ::io_priority_class&
memtable_flush_priority() {
return _mt_flush_priority;
}
const ::io_priority_class&
streaming_read_priority() {
return _stream_read_priority;
}
const ::io_priority_class&
streaming_write_priority() {
return _stream_write_priority;
}
const ::io_priority_class&
sstable_query_read_priority() {
return _sstable_query_read;
}
const ::io_priority_class&
compaction_priority() {
return _compaction_priority;
}
priority_manager()
: _commitlog_priority(engine().register_one_priority_class("commitlog", 100))
, _mt_flush_priority(engine().register_one_priority_class("memtable_flush", 100))
, _stream_read_priority(engine().register_one_priority_class("streaming_read", 20))
, _stream_write_priority(engine().register_one_priority_class("streaming_write", 20))
, _sstable_query_read(engine().register_one_priority_class("query", 100))
, _compaction_priority(engine().register_one_priority_class("compaction", 100))
{}
};
priority_manager& get_local_priority_manager();
const inline ::io_priority_class&
get_local_commitlog_priority() {
return get_local_priority_manager().commitlog_priority();
}
const inline ::io_priority_class&
get_local_memtable_flush_priority() {
return get_local_priority_manager().memtable_flush_priority();
}
const inline ::io_priority_class&
get_local_streaming_read_priority() {
return get_local_priority_manager().streaming_read_priority();
}
const inline ::io_priority_class&
get_local_streaming_write_priority() {
return get_local_priority_manager().streaming_write_priority();
}
const inline ::io_priority_class&
get_local_sstable_query_read_priority() {
return get_local_priority_manager().sstable_query_read_priority();
}
const inline ::io_priority_class&
get_local_compaction_priority() {
return get_local_priority_manager().compaction_priority();
}
}