github.com/lirm/aeron-go@v0.0.0-20230415210743-920325491dc4/aeron/counters/test_counters.go (about)

     1  // Copyright 2022 Steven Stern
     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 counters
    16  
    17  import (
    18  	"github.com/lirm/aeron-go/aeron/atomic"
    19  	"github.com/lirm/aeron-go/aeron/util"
    20  )
    21  
    22  // InitAndWrapMetaData is a test method to inject the desired values into the buffer, then wrap it as a
    23  // MetaDataFlyweight.
    24  func InitAndWrapMetaData(buf *atomic.Buffer, offset int, toDriverBufLen int32, toClientBufLen int32,
    25  	metadataBufLen int32, valuesBufLen int32, errorLogLen int32) *MetaDataFlyweight {
    26  	buf.PutInt32(int32(offset), CurrentCncVersion)
    27  	buf.PutInt32(int32(offset)+util.SizeOfInt32, toDriverBufLen)
    28  	buf.PutInt32(int32(offset)+2*util.SizeOfInt32, toClientBufLen)
    29  	buf.PutInt32(int32(offset)+3*util.SizeOfInt32, metadataBufLen)
    30  	buf.PutInt32(int32(offset)+4*util.SizeOfInt32, valuesBufLen)
    31  	buf.PutInt32(int32(offset)+5*util.SizeOfInt32, errorLogLen)
    32  	var ret = new(MetaDataFlyweight)
    33  	ret.Wrap(buf, offset)
    34  	return ret
    35  }