diff --git a/include/utils/threads.h b/include/utils/threads.h
index 0fc533f..130d83c 100644
--- a/include/utils/threads.h
+++ b/include/utils/threads.h
@@ -124,6 +124,24 @@
 
 extern void androidSetCreateThreadFunc(android_create_thread_fn func);
 
+// ------------------------------------------------------------------
+// Extra functions working with raw pids.
+
+// Get pid for the current thread.
+extern pid_t androidGetTid();
+
+// Change the scheduling group of a particular thread.  The group
+// should be one of the ANDROID_TGROUP constants.  Returns BAD_VALUE if
+// grp is out of range, else another non-zero value with errno set if
+// the operation failed.
+extern int androidSetThreadSchedulingGroup(pid_t tid, int grp);
+
+// Change the priority AND scheduling group of a particular thread.  The priority
+// should be one of the ANDROID_PRIORITY constants.  Returns INVALID_OPERATION
+// if the priority set failed, else another value if just the group set failed;
+// in either case errno is set.
+extern int androidSetThreadPriority(pid_t tid, int prio);
+
 #ifdef __cplusplus
 }
 #endif