github.com/matrixorigin/matrixone@v1.2.0/pkg/fileservice/bytes.go (about)

     1  // Copyright 2022 Matrix Origin
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package fileservice
    16  
    17  import "github.com/matrixorigin/matrixone/pkg/fileservice/memorycache"
    18  
    19  type Bytes []byte
    20  
    21  func (b Bytes) Size() int64 {
    22  	return int64(len(b))
    23  }
    24  
    25  func (b Bytes) Bytes() []byte {
    26  	return b
    27  }
    28  
    29  func (b Bytes) Slice(length int) memorycache.CacheData {
    30  	return b[:length]
    31  }
    32  
    33  func (b Bytes) Release() {
    34  }
    35  
    36  func (b Bytes) Retain() {
    37  }
    38  
    39  type bytesAllocator struct{}
    40  
    41  var _ CacheDataAllocator = new(bytesAllocator)
    42  
    43  func (b *bytesAllocator) Alloc(size int) memorycache.CacheData {
    44  	return make(Bytes, size)
    45  }