Atmosphere/libraries/libstratosphere/source/fssrv/fssrv_deferred_process_manager.hpp
2022-02-21 15:17:17 -08:00

83 lines
3.3 KiB
C++

/*
* Copyright (c) Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <stratosphere.hpp>
namespace ams::fssrv {
using NotifyProcessDeferredFunction = void (*)(u64 process_id);
struct DeferredProcessEntryForDeviceError : public util::IntrusiveListBaseNode<DeferredProcessEntryForDeviceError>, public fs::impl::Newable {
os::MultiWaitHolderType *process_holder;
u64 process_id;
};
class DeferredProcessQueueForDeviceError {
NON_COPYABLE(DeferredProcessQueueForDeviceError);
NON_MOVEABLE(DeferredProcessQueueForDeviceError);
private:
using EntryList = util::IntrusiveListBaseTraits<DeferredProcessEntryForDeviceError>::ListType;
private:
EntryList m_list{};
os::SdkMutex m_mutex{};
public:
constexpr DeferredProcessQueueForDeviceError() = default;
};
class DeferredProcessEntryForPriority : public util::IntrusiveListBaseNode<DeferredProcessEntryForPriority>, public fs::impl::Newable {
private:
os::MultiWaitHolderType *m_process_holder;
FileSystemProxyServerSessionType m_session_type;
};
class DeferredProcessQueueForPriority {
NON_COPYABLE(DeferredProcessQueueForPriority);
NON_MOVEABLE(DeferredProcessQueueForPriority);
private:
using EntryList = util::IntrusiveListBaseTraits<DeferredProcessEntryForPriority>::ListType;
private:
EntryList m_list{};
os::SdkRecursiveMutex m_mutex{};
os::SdkConditionVariable m_cv{};
public:
constexpr DeferredProcessQueueForPriority() = default;
};
template<typename ServerManager, NotifyProcessDeferredFunction NotifyProcessDeferred>
class DeferredProcessManager {
NON_COPYABLE(DeferredProcessManager);
NON_MOVEABLE(DeferredProcessManager);
private:
DeferredProcessQueueForDeviceError m_queue_for_device_error{};
os::SdkMutex m_invoke_mutex_for_device_error{};
DeferredProcessQueueForPriority m_queue_for_priority{};
std::atomic_bool m_is_invoke_deferred_process_event_linked{};
os::EventType m_invoke_event{};
os::MultiWaitHolderType m_invoke_event_holder{};
bool m_initialized{false};
public:
constexpr DeferredProcessManager() = default;
void Initialize() {
/* Check pre-conditions. */
AMS_ASSERT(!m_initialized);
os::InitializeEvent(std::addressof(m_invoke_event), false, os::EventClearMode_ManualClear);
os::InitializeMultiWaitHolder(std::addressof(m_invoke_event_holder), std::addressof(m_invoke_event));
m_initialized = true;
}
};
}