wehub-resource-sync
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85 lines
2.3 KiB
Go
85 lines
2.3 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package storage
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import (
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"encoding/binary"
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"io"
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"time"
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"github.com/milvus-io/milvus/pkg/v3/common"
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"github.com/milvus-io/milvus/pkg/v3/util/tsoutil"
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"github.com/milvus-io/milvus/pkg/v3/util/typeutil"
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)
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type baseEventHeader struct {
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Timestamp typeutil.Timestamp
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TypeCode EventTypeCode
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EventLength int32
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NextPosition int32
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}
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func (header *baseEventHeader) GetMemoryUsageInBytes() int32 {
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return int32(binary.Size(header))
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}
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func (header *baseEventHeader) Write(buffer io.Writer) error {
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return binary.Write(buffer, common.Endian, header)
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}
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type descriptorEventHeader = baseEventHeader
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type eventHeader struct {
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baseEventHeader
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}
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func readEventHeader(buffer io.Reader) (*eventHeader, error) {
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header := &eventHeader{}
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if err := binary.Read(buffer, common.Endian, header); err != nil {
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return nil, err
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}
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return header, nil
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}
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func readDescriptorEventHeader(buffer io.Reader) (*descriptorEventHeader, error) {
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header := &descriptorEventHeader{}
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if err := binary.Read(buffer, common.Endian, header); err != nil {
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return nil, err
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}
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return header, nil
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}
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func newDescriptorEventHeader() *descriptorEventHeader {
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header := descriptorEventHeader{
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Timestamp: tsoutil.ComposeTS(time.Now().UnixNano()/int64(time.Millisecond), 0),
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TypeCode: DescriptorEventType,
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}
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return &header
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}
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func newEventHeader(eventTypeCode EventTypeCode) *eventHeader {
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return &eventHeader{
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baseEventHeader: baseEventHeader{
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Timestamp: tsoutil.ComposeTS(time.Now().UnixNano()/int64(time.Millisecond), 0),
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TypeCode: eventTypeCode,
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EventLength: -1,
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NextPosition: -1,
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},
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}
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}
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