diff -r 000000000000 -r 6474c204b198 ipc/ipdl/test/cxx/TestManyChildAllocs.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/ipdl/test/cxx/TestManyChildAllocs.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,104 @@
+#include "TestManyChildAllocs.h"
+
+#include "IPDLUnitTests.h"      // fail etc.
+
+
+#define NALLOCS 10
+
+namespace mozilla {
+namespace _ipdltest {
+
+// parent code
+
+TestManyChildAllocsParent::TestManyChildAllocsParent()
+{
+    MOZ_COUNT_CTOR(TestManyChildAllocsParent);
+}
+
+TestManyChildAllocsParent::~TestManyChildAllocsParent()
+{
+    MOZ_COUNT_DTOR(TestManyChildAllocsParent);
+}
+
+void
+TestManyChildAllocsParent::Main()
+{
+    if (!SendGo())
+        fail("can't send Go()");
+}
+
+bool
+TestManyChildAllocsParent::RecvDone()
+{
+    // explicitly *not* cleaning up, so we can sanity-check IPDL's
+    // auto-shutdown/cleanup handling
+    Close();
+
+    return true;
+}
+
+bool
+TestManyChildAllocsParent::DeallocPTestManyChildAllocsSubParent(
+    PTestManyChildAllocsSubParent* __a)
+{
+    delete __a; return true;
+}
+
+PTestManyChildAllocsSubParent*
+TestManyChildAllocsParent::AllocPTestManyChildAllocsSubParent()
+{
+    return new TestManyChildAllocsSubParent();
+}
+
+
+// child code
+
+TestManyChildAllocsChild::TestManyChildAllocsChild()
+{
+    MOZ_COUNT_CTOR(TestManyChildAllocsChild);
+}
+
+TestManyChildAllocsChild::~TestManyChildAllocsChild()
+{
+    MOZ_COUNT_DTOR(TestManyChildAllocsChild);
+}
+
+bool TestManyChildAllocsChild::RecvGo()
+{
+    for (int i = 0; i < NALLOCS; ++i) {
+        PTestManyChildAllocsSubChild* child =
+            SendPTestManyChildAllocsSubConstructor();
+
+        if (!child)
+            fail("can't send ctor()");
+
+        if (!child->SendHello())
+            fail("can't send Hello()");
+    }
+
+    size_t len = ManagedPTestManyChildAllocsSubChild().Length();
+    if (NALLOCS != len)
+        fail("expected %lu kids, got %lu", NALLOCS, len);
+
+    if (!SendDone())
+        fail("can't send Done()");
+
+    return true;
+}
+
+bool
+TestManyChildAllocsChild::DeallocPTestManyChildAllocsSubChild(
+    PTestManyChildAllocsSubChild* __a)
+{
+    delete __a; return true;
+}
+
+PTestManyChildAllocsSubChild*
+TestManyChildAllocsChild::AllocPTestManyChildAllocsSubChild()
+{
+    return new TestManyChildAllocsSubChild();
+}
+
+
+} // namespace _ipdltest
+} // namespace mozilla