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-rw-r--r--libraries/base/System/Mem.hs9
1 files changed, 8 insertions, 1 deletions
diff --git a/libraries/base/System/Mem.hs b/libraries/base/System/Mem.hs
index c47a52d2f7..843cf66877 100644
--- a/libraries/base/System/Mem.hs
+++ b/libraries/base/System/Mem.hs
@@ -3,7 +3,7 @@
-- Module : System.Mem
-- Copyright : (c) The University of Glasgow 2001
-- License : BSD-style (see the file libraries/base/LICENSE)
---
+--
-- Maintainer : libraries@haskell.org
-- Stability : provisional
-- Portability : portable
@@ -19,6 +19,7 @@ module System.Mem
(
-- * Garbage collection
performGC
+ , performBlockingMajorGC
, performMajorGC
, performMinorGC
@@ -35,6 +36,12 @@ import GHC.Conc.Sync
performGC :: IO ()
performGC = performMajorGC
+-- | Triggers an immediate major garbage collection, ensuring that collection
+-- finishes before returning.
+--
+-- @since 4.16.0.0
+foreign import ccall "performBlockingMajorGC" performBlockingMajorGC :: IO ()
+
-- | Triggers an immediate major garbage collection.
--
-- @since 4.7.0.0