WorkProgressDispatcher (Ignite 2.17.0)

All Known Implementing Classes:

Checkpointer, CommunicationWorker, DmsDataWriterWorker, FileHandleManagerImpl.WALWriter, GridJobWorker, GridTaskWorker, GridWorker, SchemaIndexCachePartitionWorker, SchemaOperationWorker, StripedExecutor.Stripe
```
public interface WorkProgressDispatcher
```
Dispatcher of workers' progress which allows us to understand if worker freezes.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`blockingSectionBegin()`	Protects the worker from timeout penalties if subsequent instructions in the calling thread does not update heartbeat timestamp timely, e.g. due to blocking operations, up to the nearest `blockingSectionEnd()` call.
`void`	`blockingSectionEnd()`	Closes the protection section previously opened by `blockingSectionBegin()`.
`long`	`heartbeatTs()`	Last heatbeat timestamp.
`void`	`updateHeartbeat()`	Notifying dispatcher that work is in progress and thread didn't freeze.

- Method Detail
  - heartbeatTs
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long heartbeatTs()
```
    Last heatbeat timestamp.
  - updateHeartbeat
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void updateHeartbeat()
```
    Notifying dispatcher that work is in progress and thread didn't freeze.
  - blockingSectionBegin
```
void blockingSectionBegin()
```
    Protects the worker from timeout penalties if subsequent instructions in the calling thread does not update heartbeat timestamp timely, e.g. due to blocking operations, up to the nearest blockingSectionEnd() call. Nested calls are not supported.
  - blockingSectionEnd
```
void blockingSectionEnd()
```
    Closes the protection section previously opened by blockingSectionBegin().