github.com/m3db/m3@v1.5.0/src/m3ninx/index/segment/builder/sharded_fields_map.go (about)

     1  // Copyright (c) 2020 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package builder
    22  
    23  type shardedFieldsMap struct {
    24  	data []*fieldsMap
    25  }
    26  
    27  func newShardedFieldsMap(
    28  	numShards int,
    29  	shardInitialCapacity int,
    30  ) *shardedFieldsMap {
    31  	data := make([]*fieldsMap, 0, numShards)
    32  	for i := 0; i < numShards; i++ {
    33  		data = append(data, newFieldsMap(fieldsMapOptions{
    34  			InitialSize: shardInitialCapacity,
    35  		}))
    36  	}
    37  	return &shardedFieldsMap{
    38  		data: data,
    39  	}
    40  }
    41  
    42  func (s *shardedFieldsMap) ShardedGet(
    43  	shard int,
    44  	k []byte,
    45  ) (*terms, bool) {
    46  	return s.data[shard].Get(k)
    47  }
    48  
    49  func (s *shardedFieldsMap) ShardedSetUnsafe(
    50  	shard int,
    51  	k []byte,
    52  	v *terms,
    53  	opts fieldsMapSetUnsafeOptions,
    54  ) {
    55  	s.data[shard].SetUnsafe(k, v, opts)
    56  }
    57  
    58  // ResetTermsSets keeps fields around but resets the terms set for each one.
    59  func (s *shardedFieldsMap) ResetTermsSets() {
    60  	for _, fieldMap := range s.data {
    61  		for _, entry := range fieldMap.Iter() {
    62  			entry.Value().reset()
    63  		}
    64  	}
    65  }