gecko-dev/dom/media/gmp/GMPCrashHelper.h
Nika Layzell 5367461411 Bug 1678463 - Part 2: Migrate media _WITH_DESTROY refcounts to new macros, r=jya
These new macros provide a standard way to delegate `delete` to the main thread,
and can be used to avoid using bespoke _WITH_DESTROY implementations.

Differential Revision: https://phabricator.services.mozilla.com/D97826
2020-12-14 18:30:19 +00:00

37 lines
1.2 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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/. */
#if !defined(GMPCrashHelper_h_)
# define GMPCrashHelper_h_
# include "MainThreadUtils.h"
# include "nsISupportsImpl.h"
class nsPIDOMWindowInner;
namespace mozilla {
// For every GMP actor requested, the caller can specify a crash helper,
// which is an object which supplies the nsPIDOMWindowInner to which we'll
// dispatch the PluginCrashed event if the GMP crashes.
// GMPCrashHelper has threadsafe refcounting. Its release method ensures
// that instances are destroyed on the main thread.
class GMPCrashHelper {
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING_WITH_DELETE_ON_MAIN_THREAD(
GMPCrashHelper);
// Called on the main thread.
virtual already_AddRefed<nsPIDOMWindowInner>
GetPluginCrashedEventTarget() = 0;
protected:
virtual ~GMPCrashHelper() { MOZ_ASSERT(NS_IsMainThread()); }
};
} // namespace mozilla
#endif // GMPCrashHelper_h_