DynamicSemaphore (Drill : Exec : Java Execution Engine 1.20.0 API)

```
public class DynamicSemaphore
extends Object
```
Dynamic credit based flow control: The sender initially sends batch to the sender by the initial static credit (3). The receiver will calculate a runtime credit value while sampling some received batches. The runtime generated credit value will be sent to the receiver as an ack value. The sender will change to the runtime generated credit value while received the ack credit value. The ack credit value has three type numeric value with different meaning: 0 : meaning no explicit credit value to the sender, just keep the initial static credit based fc. -1: meaning the receiver has gone to wrong to solve the query. value greater than 0: meaning a runtime generated credit value for the sender to change to.

Constructors
Constructor and Description
`DynamicSemaphore()`

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`acquire()`
`void`	`release()`
`void`	`tryToIncreaseCredit(int suggestedSemaphoreVal)` received an advice credit to transfer from the initial static value

Class DynamicSemaphore