1 files changed, 50 insertions, 0 deletions
diff --git a/rts/ThreadLabels.c b/rts/ThreadLabels.c
new file mode 100644
index 0000000000..9b9f1723ff
--- /dev/null
+++ b/rts/ThreadLabels.c
@@ -0,0 +1,50 @@
+/* -----------------------------------------------------------------------------
+ * ThreadLabels.c
+ *
+ * (c) The GHC Team 2002-2003
+ *
+ * Table of thread labels.
+ *
+ * ---------------------------------------------------------------------------*/
+
+#include "PosixSource.h"
+#include "ThreadLabels.h"
+#include "RtsUtils.h"
+
+#include <stdlib.h>
+
+#if defined(DEBUG)
+/* to the end */
+static HashTable * threadLabels = NULL;
+
+void
+initThreadLabelTable(void)
+{
+  if (threadLabels == NULL) {
+    threadLabels = allocHashTable();
+  }
+}
+
+void
+updateThreadLabel(StgWord key, void *data)
+{
+  removeThreadLabel(key);
+  insertHashTable(threadLabels,key,data);
+}
+
+void *
+lookupThreadLabel(StgWord key)
+{
+  return lookupHashTable(threadLabels,key);
+}
+
+void
+removeThreadLabel(StgWord key)
+{
+  void * old = NULL;
+  if ((old = lookupHashTable(threadLabels,key))) {
+    removeHashTable(threadLabels,key,old);
+    stgFree(old);
+  }  
+}
+#endif /* DEBUG */