github.com/matrixorigin/matrixone@v1.2.0/pkg/vm/engine/tae/logtail/service/chunk.go (about)

     1  // Copyright 2021 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 service
    16  
    17  type Bytes = []byte
    18  
    19  func AppendChunk(b []byte, chunks ...Bytes) []byte {
    20  	for _, chunk := range chunks {
    21  		b = append(b, chunk...)
    22  	}
    23  	return b
    24  }
    25  
    26  func Split(b []byte, limit int) []Bytes {
    27  	chunks := make([]Bytes, 0, (len(b)/limit)+1)
    28  
    29  	var chunk Bytes
    30  	for len(b) >= limit {
    31  		chunk, b = b[:limit], b[limit:]
    32  		chunks = append(chunks, chunk)
    33  	}
    34  	if len(b) > 0 {
    35  		chunks = append(chunks, b[:])
    36  	}
    37  
    38  	return chunks
    39  }