seaweedfs/weed/mq/topic/local_partition_subscribers.go
Chris Lu 580940bf82
Merge accumulated changes related to message queue (#5098)
* balance partitions on brokers

* prepare topic partition first and then publish, move partition

* purge unused APIs

* clean up

* adjust logs

* add BalanceTopics() grpc API

* configure topic

* configure topic command

* refactor

* repair missing partitions

* sequence of operations to ensure ordering

* proto to close publishers and consumers

* rename file

* topic partition versioned by unixTimeNs

* create local topic partition

* close publishers

* randomize the client name

* wait until no publishers

* logs

* close stop publisher channel

* send last ack

* comments

* comment

* comments

* support list of brokers

* add cli options

* Update .gitignore

* logs

* return io.eof directly

* refactor

* optionally create topic

* refactoring

* detect consumer disconnection

* sub client wait for more messages

* subscribe by time stamp

* rename

* rename to sub_balancer

* rename

* adjust comments

* rename

* fix compilation

* rename

* rename

* SubscriberToSubCoordinator

* sticky rebalance

* go fmt

* add tests

* balance partitions on brokers

* prepare topic partition first and then publish, move partition

* purge unused APIs

* clean up

* adjust logs

* add BalanceTopics() grpc API

* configure topic

* configure topic command

* refactor

* repair missing partitions

* sequence of operations to ensure ordering

* proto to close publishers and consumers

* rename file

* topic partition versioned by unixTimeNs

* create local topic partition

* close publishers

* randomize the client name

* wait until no publishers

* logs

* close stop publisher channel

* send last ack

* comments

* comment

* comments

* support list of brokers

* add cli options

* Update .gitignore

* logs

* return io.eof directly

* refactor

* optionally create topic

* refactoring

* detect consumer disconnection

* sub client wait for more messages

* subscribe by time stamp

* rename

* rename to sub_balancer

* rename

* adjust comments

* rename

* fix compilation

* rename

* rename

* SubscriberToSubCoordinator

* sticky rebalance

* go fmt

* add tests

* tracking topic=>broker

* merge

* comment
2023-12-11 12:05:54 -08:00

50 lines
1.1 KiB
Go

package topic
import "sync"
type LocalPartitionSubscribers struct {
Subscribers map[string]*LocalSubscriber
SubscribersLock sync.RWMutex
}
type LocalSubscriber struct {
stopCh chan struct{}
}
func NewLocalSubscriber() *LocalSubscriber {
return &LocalSubscriber{
stopCh: make(chan struct{}, 1),
}
}
func (p *LocalSubscriber) SignalShutdown() {
close(p.stopCh)
}
func NewLocalPartitionSubscribers() *LocalPartitionSubscribers {
return &LocalPartitionSubscribers{
Subscribers: make(map[string]*LocalSubscriber),
}
}
func (p *LocalPartitionSubscribers) AddSubscriber(clientName string, Subscriber *LocalSubscriber) {
p.SubscribersLock.Lock()
defer p.SubscribersLock.Unlock()
p.Subscribers[clientName] = Subscriber
}
func (p *LocalPartitionSubscribers) RemoveSubscriber(clientName string) {
p.SubscribersLock.Lock()
defer p.SubscribersLock.Unlock()
delete(p.Subscribers, clientName)
}
func (p *LocalPartitionSubscribers) SignalShutdown() {
p.SubscribersLock.RLock()
defer p.SubscribersLock.RUnlock()
for _, Subscriber := range p.Subscribers {
Subscriber.SignalShutdown()
}
}