gecko-dev/mfbt/tests/gtest/TestMainThreadWeakPtr.cpp

43 строки
987 B
C++

/* -*- 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/. */
#include "gtest/gtest.h"
#include "mozilla/WeakPtr.h"
#include "mozilla/UniquePtr.h"
#include <thread>
using namespace mozilla;
struct C : public SupportsWeakPtr {
int mNum{0};
};
struct HasWeakPtrToC {
explicit HasWeakPtrToC(C* c) : mPtr(c) {}
MainThreadWeakPtr<C> mPtr;
~HasWeakPtrToC() {
MOZ_RELEASE_ASSERT(!NS_IsMainThread(), "Should be released OMT");
}
};
TEST(MFBT_MainThreadWeakPtr, Basic)
{
auto c = MakeUnique<C>();
MOZ_RELEASE_ASSERT(NS_IsMainThread());
auto weakRef = MakeUnique<HasWeakPtrToC>(c.get());
std::thread t([weakRef = std::move(weakRef)] {});
MOZ_RELEASE_ASSERT(!weakRef);
c = nullptr;
t.join();
}