From 4174de8bb941c3edbeb14f42ab4ebbfff5fb176d Mon Sep 17 00:00:00 2001
From: Ben Blum <bblum@andrew.cmu.edu>
Date: Fri, 3 Aug 2012 21:00:23 -0400
Subject: [PATCH] rt: expose rust_task refcounts to rustland

---
 src/rt/rust_builtin.cpp | 12 ++++++++++++
 src/rt/rustrt.def.in    |  2 ++
 2 files changed, 14 insertions(+)

diff --git a/src/rt/rust_builtin.cpp b/src/rt/rust_builtin.cpp
index f9c95db1d04b..1ba941c233ca 100644
--- a/src/rt/rust_builtin.cpp
+++ b/src/rt/rust_builtin.cpp
@@ -968,6 +968,18 @@ task_signal_event(rust_task *target, void *event) {
     target->signal_event(event);
 }
 
+// Can safely run on the rust stack.
+extern "C" void
+rust_task_ref(rust_task *task) {
+    task->ref();
+}
+
+// Don't run on the rust stack!
+extern "C" void
+rust_task_deref(rust_task *task) {
+    task->deref();
+}
+
 //
 // Local Variables:
 // mode: C++
diff --git a/src/rt/rustrt.def.in b/src/rt/rustrt.def.in
index b3bc75d03c50..997dcf0e668c 100644
--- a/src/rt/rustrt.def.in
+++ b/src/rt/rustrt.def.in
@@ -194,3 +194,5 @@ rust_signal_cond_lock
 rust_get_task_local_data
 rust_set_task_local_data
 rust_task_local_data_atexit
+rust_task_ref
+rust_task_deref