diff -r 000000000000 -r 6474c204b198 ipc/ipdl/test/cxx/PTestSysVShmem.ipdl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/ipdl/test/cxx/PTestSysVShmem.ipdl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,22 @@
+namespace mozilla {
+namespace _ipdltest {
+
+protocol PTestSysVShmem {
+child:
+    Give(Shmem mem, Shmem unsafe, size_t expectedSize);
+
+parent:
+    Take(Shmem mem, Shmem unsafe, size_t expectedSize);
+    __delete__();
+
+
+state GIVING:
+    send Give goto TAKING;
+
+state TAKING:
+    recv Take goto TAKING;
+    recv __delete__;
+};
+
+}
+}