1 files changed, 62 insertions, 0 deletions
diff --git a/ipc/ipdl/test/cxx/TestSyncHang.cpp b/ipc/ipdl/test/cxx/TestSyncHang.cpp
new file mode 100644
index 0000000000..f53054787b
--- /dev/null
+++ b/ipc/ipdl/test/cxx/TestSyncHang.cpp
@@ -0,0 +1,62 @@
+#include "TestSyncHang.h"
+#include "base/task.h"
+#include "mozilla/ipc/GeckoChildProcessHost.h"
+
+#include "IPDLUnitTests.h"  // fail etc.
+
+using std::string;
+using std::vector;
+
+namespace mozilla {
+namespace _ipdltest {
+
+//-----------------------------------------------------------------------------
+// parent
+
+mozilla::ipc::GeckoChildProcessHost* gSyncHangSubprocess;
+
+TestSyncHangParent::TestSyncHangParent() { MOZ_COUNT_CTOR(TestSyncHangParent); }
+
+TestSyncHangParent::~TestSyncHangParent() {
+  MOZ_COUNT_DTOR(TestSyncHangParent);
+}
+
+void DeleteSyncHangSubprocess(MessageLoop* uiLoop) {
+  gSyncHangSubprocess->Destroy();
+  gSyncHangSubprocess = nullptr;
+}
+
+void DeferredSyncHangParentShutdown() {
+  // ping to DeleteSubprocess
+  XRE_GetIOMessageLoop()->PostTask(
+      NewRunnableFunction("DeleteSyncHangSubprocess", DeleteSyncHangSubprocess,
+                          MessageLoop::current()));
+}
+
+void TestSyncHangParent::Main() {
+  vector<string> args;
+  args.push_back("fake/path");
+  gSyncHangSubprocess =
+      new mozilla::ipc::GeckoChildProcessHost(GeckoProcessType_Plugin);
+  bool launched = gSyncHangSubprocess->SyncLaunch(args, 2);
+  if (launched)
+    fail("Calling SyncLaunch with an invalid path should return false");
+
+  MessageLoop::current()->PostTask(NewRunnableFunction(
+      "DeferredSyncHangParentShutdown", DeferredSyncHangParentShutdown));
+  Close();
+}
+
+//-----------------------------------------------------------------------------
+// child
+
+TestSyncHangChild::TestSyncHangChild() { MOZ_COUNT_CTOR(TestSyncHangChild); }
+
+TestSyncHangChild::~TestSyncHangChild() { MOZ_COUNT_DTOR(TestSyncHangChild); }
+
+mozilla::ipc::IPCResult TestSyncHangChild::RecvUnusedMessage() {
+  return IPC_OK();
+}
+
+}  // namespace _ipdltest
+}  // namespace mozilla