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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
* Test an actor being destroyed during another ActorDestroy.
*/
#include "gtest/gtest.h"
#include "mozilla/_ipdltest/IPDLUnitTest.h"
#include "mozilla/_ipdltest/PTestDestroyNestedChild.h"
#include "mozilla/_ipdltest/PTestDestroyNestedParent.h"
#include "mozilla/_ipdltest/PTestDestroyNestedSubChild.h"
#include "mozilla/_ipdltest/PTestDestroyNestedSubParent.h"
#include "mozilla/SpinEventLoopUntil.h"
using namespace mozilla::ipc;
namespace mozilla::_ipdltest {
class TestDestroyNestedSubParent : public PTestDestroyNestedSubParent {
NS_INLINE_DECL_REFCOUNTING(TestDestroyNestedSubParent, override)
void ActorDestroy(ActorDestroyReason aReason) override;
bool mActorDestroyCalled = false;
bool mCloseManager = false;
nsrefcnt GetRefCnt() const { return mRefCnt; }
private:
~TestDestroyNestedSubParent() = default;
};
class TestDestroyNestedSubChild : public PTestDestroyNestedSubChild {
NS_INLINE_DECL_REFCOUNTING(TestDestroyNestedSubChild, override)
private:
~TestDestroyNestedSubChild() = default;
};
class TestDestroyNestedParent : public PTestDestroyNestedParent {
NS_INLINE_DECL_REFCOUNTING(TestDestroyNestedParent, override)
void ActorDestroy(ActorDestroyReason aReason) override;
bool mActorDestroyCalled = false;
private:
~TestDestroyNestedParent() = default;
};
class TestDestroyNestedChild : public PTestDestroyNestedChild {
NS_INLINE_DECL_REFCOUNTING(TestDestroyNestedChild, override)
already_AddRefed<PTestDestroyNestedSubChild> AllocPTestDestroyNestedSubChild()
override {
return MakeAndAddRef<TestDestroyNestedSubChild>();
}
private:
~TestDestroyNestedChild() = default;
};
void TestDestroyNestedSubParent::ActorDestroy(ActorDestroyReason aReason) {
// Destroy our manager from within ActorDestroy() and assert that we don't
// re-enter.
EXPECT_FALSE(mActorDestroyCalled) << "re-entered ActorDestroy()";
mActorDestroyCalled = true;
if (mCloseManager) {
EXPECT_FALSE(
static_cast<TestDestroyNestedParent*>(Manager())->mActorDestroyCalled)
<< "manager already destroyed";
Manager()->Close();
EXPECT_TRUE(
static_cast<TestDestroyNestedParent*>(Manager())->mActorDestroyCalled)
<< "manager successfully destroyed";
}
// Make sure we also process any pending events, because we might be spinning
// a nested event loop within `ActorDestroy`.
NS_ProcessPendingEvents(nullptr);
}
void TestDestroyNestedParent::ActorDestroy(ActorDestroyReason aReason) {
// Destroy our manager from within ActorDestroy() and assert that we don't
// re-enter.
EXPECT_FALSE(mActorDestroyCalled) << "re-entered ActorDestroy()";
mActorDestroyCalled = true;
}
IPDL_TEST(TestDestroyNested) {
auto p = MakeRefPtr<TestDestroyNestedSubParent>();
p->mCloseManager = true;
auto* rv1 = mActor->SendPTestDestroyNestedSubConstructor(p);
ASSERT_EQ(p, rv1) << "can't allocate Sub";
bool rv2 = PTestDestroyNestedSubParent::Send__delete__(p);
ASSERT_TRUE(rv2)
<< "Send__delete__ failed";
ASSERT_TRUE(mActor->mActorDestroyCalled)
<< "Parent not destroyed";
ASSERT_TRUE(p->mActorDestroyCalled)
<< "Sub not destroyed";
ASSERT_EQ(p->GetRefCnt(), 1u) << "Outstanding references to Sub remain";
// Try to allocate a new actor under the already-destroyed manager, and ensure
// that it is destroyed as expected.
auto p2 = MakeRefPtr<TestDestroyNestedSubParent>();
auto* rv3 = mActor->SendPTestDestroyNestedSubConstructor(p2);
ASSERT_EQ(rv3, nullptr) << "construction succeeded unexpectedly";
ASSERT_TRUE(p2->mActorDestroyCalled)
<< "Sub not destroyed";
}
} // namespace mozilla::_ipdltest
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