Fix incorrectly hidden RTS symbols

[ghc-hetmet.git] / includes / rts / BlockSignals.h

diff --git a/includes/rts/BlockSignals.h b/includes/rts/BlockSignals.h
new file mode 100644 (file)
index 0000000..bc02f5f
--- /dev/null
+++ b/includes/rts/BlockSignals.h
@@ -0,0 +1,37 @@
+/* -----------------------------------------------------------------------------
+ *
+ * (c) The GHC Team, 1998-2009
+ *
+ * RTS signal handling 
+ *
+ * Do not #include this file directly: #include "Rts.h" instead.
+ *
+ * To understand the structure of the RTS headers, see the wiki:
+ *   http://hackage.haskell.org/trac/ghc/wiki/Commentary/SourceTree/Includes
+ *
+ * ---------------------------------------------------------------------------*/
+
+#ifndef RTS_BLOCKSIGNALS_H
+#define RTS_BLOCKSIGNALS_H
+
+/* Used by runProcess() in the process package
+ */
+
+/*
+ * Function: blockUserSignals()
+ *
+ * Temporarily block the delivery of further console events. Needed to
+ * avoid race conditions when GCing the queue of outstanding handlers or
+ * when emptying the queue by running the handlers.
+ * 
+ */
+void blockUserSignals(void);
+
+/*
+ * Function: unblockUserSignals()
+ *
+ * The inverse of blockUserSignals(); re-enable the deliver of console events.
+ */
+void unblockUserSignals(void);
+
+#endif /* RTS_BLOCKSIGNALS_H */