1 files changed, 40 insertions, 0 deletions
diff --git a/ipc/ipdl/test/cxx/PTestHangs.ipdl b/ipc/ipdl/test/cxx/PTestHangs.ipdl
new file mode 100644
index 000000000..b1b43fa75
--- /dev/null
+++ b/ipc/ipdl/test/cxx/PTestHangs.ipdl
@@ -0,0 +1,40 @@
+
+namespace mozilla {
+namespace _ipdltest {
+
+intr protocol PTestHangs {
+both:
+    intr StackFrame();
+
+parent:
+    async Nonce();
+
+child:
+    async Start();
+    intr Hang();
+    async __delete__();
+
+
+state START:
+    send Start goto RACE;
+
+state RACE:
+    recv Nonce goto RACE1;
+    call StackFrame goto RACE2;
+state RACE1:
+    call StackFrame goto FRAME2;
+state RACE2:
+    recv Nonce goto FRAME2;
+
+// So as to test unwinding the RPC stack
+state FRAME2: answer StackFrame goto FRAME3;
+state FRAME3: call StackFrame goto FRAME4;
+state FRAME4: answer StackFrame goto HANG;
+state HANG:   call Hang goto DEATH;
+
+state DEATH:
+    send __delete__;
+};
+
+} // namespace _ipdltest
+} // namespace mozilla