stasis-bLSM/tuplemerger.h
sears d9a8d6f998 apache2 license + headers
git-svn-id: svn+ssh://svn.corp.yahoo.com/yahoo/yrl/labs/pnuts/code/logstore@3593 8dad8b1f-cf64-0410-95b6-bcf113ffbcfe
2012-01-19 16:49:54 +00:00

51 lines
1.1 KiB
C++

/*
* merger.cpp
*
* Copyright 2009-2012 Yahoo! Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef _TUPLE_MERGER_H_
#define _TUPLE_MERGER_H_
struct datatuple;
typedef datatuple* (*merge_fn_t) (const datatuple*, const datatuple *);
datatuple* append_merger(const datatuple *t1, const datatuple *t2);
datatuple* replace_merger(const datatuple *t1, const datatuple *t2);
class tuplemerger
{
public:
tuplemerger(merge_fn_t merge_fp)
{
this->merge_fp = merge_fp;
}
datatuple* merge(const datatuple *t1, const datatuple *t2);
private:
merge_fn_t merge_fp;
};
#endif