eparch/start_options

Shared option types for eparch behaviour modules (state_machine and event_manager). These mirror the OTP start-option surface common to gen_statem, gen_event, and gen_server: timeouts, debug flags, and the subset of erlang:spawn_opt/2 options that make sense for a long-running server process.

Types

DebugFlag

</>

Flags for the debug start option.

pub type DebugFlag {
  DebugTrace
  DebugLog
  DebugStatistics
  DebugLogToFile(file_name: String)
}

Constructors

```
DebugTrace
```
```
DebugLog
```
```
DebugStatistics
```
```
DebugLogToFile(file_name: String)
```

MessageQueueMode

</>

Message queue storage mode for SpawnMessageQueueData.

pub type MessageQueueMode {
  OnHeap
  OffHeap
}

Constructors

```
OnHeap
```
```
OffHeap
```

Priority

</>

Process priority for SpawnPriority.

pub type Priority {
  PriorityLow
  PriorityNormal
  PriorityHigh
  PriorityMax
}

Constructors

```
PriorityLow
```
```
PriorityNormal
```
```
PriorityHigh
```
```
PriorityMax
```

SpawnOption

</>

Subset of erlang:spawn_opt/2’s options that are meaningful for a long-running server process. link and monitor are intentionally omitted: they are decided by the lifecycle entry point (start_link, start, start_monitor).

pub type SpawnOption {
  SpawnPriority(level: Priority)
  SpawnFullsweepAfter(count: Int)
  SpawnMinHeapSize(size: Int)
  SpawnMinBinVheapSize(size: Int)
  SpawnMaxHeapSize(size: Int)
  SpawnMessageQueueData(mode: MessageQueueMode)
}

Constructors

```
SpawnPriority(level: Priority)
```
```
SpawnFullsweepAfter(count: Int)
```
```
SpawnMinHeapSize(size: Int)
```
```
SpawnMinBinVheapSize(size: Int)
```
```
SpawnMaxHeapSize(size: Int)
```

SpawnMessageQueueData(mode: MessageQueueMode)

Timeout

</>

A timeout: either a fixed number of milliseconds or Infinity.

pub type Timeout {
  Infinity
  Milliseconds(ms: Int)
}

Constructors

```
Infinity
```
```
Milliseconds(ms: Int)
```