1 files changed, 100 insertions, 0 deletions
diff --git a/ipc/ipdl/test/cxx/TestCrashCleanup.cpp b/ipc/ipdl/test/cxx/TestCrashCleanup.cpp
new file mode 100644
index 0000000000..6a19cc0f65
--- /dev/null
+++ b/ipc/ipdl/test/cxx/TestCrashCleanup.cpp
@@ -0,0 +1,100 @@
+#include "TestCrashCleanup.h"
+
+#include "base/task.h"
+#include "mozilla/CondVar.h"
+#include "mozilla/Mutex.h"
+
+#include "IPDLUnitTests.h"  // fail etc.
+#include "IPDLUnitTestSubprocess.h"
+
+using mozilla::CondVar;
+using mozilla::Mutex;
+using mozilla::MutexAutoLock;
+
+namespace mozilla {
+namespace _ipdltest {
+
+//-----------------------------------------------------------------------------
+// parent
+
+namespace {
+
+// NB: this test does its own shutdown, rather than going through
+// QuitParent(), because it's testing degenerate edge cases
+
+void DeleteSubprocess(Mutex* mutex, CondVar* cvar) {
+  MutexAutoLock lock(*mutex);
+
+  gSubprocess->Destroy();
+  gSubprocess = nullptr;
+
+  cvar->Notify();
+}
+
+void DeleteTheWorld() {
+  delete static_cast<TestCrashCleanupParent*>(gParentActor);
+  gParentActor = nullptr;
+
+  // needs to be synchronous to avoid affecting event ordering on
+  // the main thread
+  Mutex mutex MOZ_UNANNOTATED("TestCrashCleanup.DeleteTheWorld.mutex");
+  CondVar cvar(mutex, "TestCrashCleanup.DeleteTheWorld.cvar");
+
+  MutexAutoLock lock(mutex);
+
+  XRE_GetIOMessageLoop()->PostTask(
+      NewRunnableFunction("DeleteSubprocess", DeleteSubprocess, &mutex, &cvar));
+
+  cvar.Wait();
+}
+
+void Done() {
+  static NS_DEFINE_CID(kAppShellCID, NS_APPSHELL_CID);
+  nsCOMPtr<nsIAppShell> appShell(do_GetService(kAppShellCID));
+  appShell->Exit();
+
+  passed(__FILE__);
+}
+
+}  // namespace
+
+TestCrashCleanupParent::TestCrashCleanupParent() : mCleanedUp(false) {
+  MOZ_COUNT_CTOR(TestCrashCleanupParent);
+}
+
+TestCrashCleanupParent::~TestCrashCleanupParent() {
+  MOZ_COUNT_DTOR(TestCrashCleanupParent);
+
+  if (!mCleanedUp) fail("should have been ActorDestroy()d!");
+}
+
+void TestCrashCleanupParent::Main() {
+  // NB: has to be enqueued before IO thread's error notification
+  MessageLoop::current()->PostTask(
+      NewRunnableFunction("DeleteTheWorld", DeleteTheWorld));
+
+  if (CallDIEDIEDIE()) fail("expected an error!");
+
+  Close();
+
+  MessageLoop::current()->PostTask(NewRunnableFunction("Done", Done));
+}
+
+//-----------------------------------------------------------------------------
+// child
+
+TestCrashCleanupChild::TestCrashCleanupChild() {
+  MOZ_COUNT_CTOR(TestCrashCleanupChild);
+}
+
+TestCrashCleanupChild::~TestCrashCleanupChild() {
+  MOZ_COUNT_DTOR(TestCrashCleanupChild);
+}
+
+mozilla::ipc::IPCResult TestCrashCleanupChild::AnswerDIEDIEDIE() {
+  _exit(0);
+  MOZ_CRASH("unreached");
+}
+
+}  // namespace _ipdltest
+}  // namespace mozilla