gecko-dev/xpcom/threads/SystemGroup.cpp

106 строки
2.2 KiB
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 "SystemGroup.h"
#include "mozilla/Move.h"
#include "mozilla/UniquePtr.h"
#include "nsINamed.h"
using namespace mozilla;
class SystemGroupImpl final : public SchedulerGroup
{
public:
SystemGroupImpl();
~SystemGroupImpl() {}
static void InitStatic();
static void ShutdownStatic();
static SystemGroupImpl* Get();
static bool Initialized() { return !!sSingleton; }
NS_METHOD_(MozExternalRefCountType) AddRef(void)
{
return 2;
}
NS_METHOD_(MozExternalRefCountType) Release(void)
{
return 1;
}
private:
static UniquePtr<SystemGroupImpl> sSingleton;
};
UniquePtr<SystemGroupImpl> SystemGroupImpl::sSingleton;
SystemGroupImpl::SystemGroupImpl()
{
CreateEventTargets(/* aNeedValidation = */ true);
}
/* static */ void
SystemGroupImpl::InitStatic()
{
MOZ_ASSERT(!sSingleton);
MOZ_ASSERT(NS_IsMainThread());
sSingleton = MakeUnique<SystemGroupImpl>();
}
/* static */ void
SystemGroupImpl::ShutdownStatic()
{
sSingleton->Shutdown(true);
sSingleton = nullptr;
}
/* static */ SystemGroupImpl*
SystemGroupImpl::Get()
{
MOZ_ASSERT(sSingleton);
return sSingleton.get();
}
void
SystemGroup::InitStatic()
{
SystemGroupImpl::InitStatic();
}
void
SystemGroup::Shutdown()
{
SystemGroupImpl::ShutdownStatic();
}
bool
SystemGroup::Initialized()
{
return SystemGroupImpl::Initialized();
}
/* static */ nsresult
SystemGroup::Dispatch(const char* aName,
TaskCategory aCategory,
already_AddRefed<nsIRunnable>&& aRunnable)
{
return SystemGroupImpl::Get()->Dispatch(aName, aCategory, Move(aRunnable));
}
/* static */ nsISerialEventTarget*
SystemGroup::EventTargetFor(TaskCategory aCategory)
{
return SystemGroupImpl::Get()->EventTargetFor(aCategory);
}
/* static */ AbstractThread*
SystemGroup::AbstractMainThreadFor(TaskCategory aCategory)
{
return SystemGroupImpl::Get()->AbstractMainThreadFor(aCategory);
}