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Diffstat (limited to 'lore/Control/Concurrent/Sima.hs')
| -rw-r--r-- | lore/Control/Concurrent/Sima.hs | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lore/Control/Concurrent/Sima.hs b/lore/Control/Concurrent/Sima.hs new file mode 100644 index 0000000..3588a2a --- /dev/null +++ b/lore/Control/Concurrent/Sima.hs @@ -0,0 +1,12 @@ +module Control.Concurrent.Simaphore + ( mapPool + ) +where + +import Control.Concurrent.MSem + +-- | Simaphore-based throttled 'mapConcurrently'. +mapPool :: Traversable t => Int -> (a -> IO b) -> t a -> IO (t b) +mapPool lim f xs = do + sima <- new lim + mapConcurrently (with sima . f) xs |