Graphics.Caramia.Sync

Synchronization primitives.

This module implements fence synchronization objects. They can be used to check when a GPU operation has been done.

At the moment, the only place where these objects are useful in Caramia is unsynchronized buffer mapping.

Operations

fence :: (MonadIO m, MonadMask m) => m Fence

Create a fence.

waitFence

Arguments

:: MonadIO m

=> Int

Number of microseconds to wait.

-> Fence

-> m Bool

True if the fence was signalled, False if waiting timed out.

Waits for a fence to signal.

IMPORTANT: this is not interruptible by asynchronous exceptions.

isFenceSignalled :: MonadIO m => Fence -> m Bool

Checks if a fence has been signalled.

 isFenceSignalled = waitFence 0

Types

data Fence

Instances

Eq Fence

Ord Fence

Typeable * Fence