Kernel: Implement Time Manager.

This commit is contained in:
Fernando Sahmkow 2020-02-14 10:56:27 -04:00 committed by FernandoS27
parent 179bafa7cb
commit 5c90d22f3d
5 changed files with 98 additions and 1 deletions

View file

@ -187,6 +187,8 @@ add_library(core STATIC
hle/kernel/synchronization.h
hle/kernel/thread.cpp
hle/kernel/thread.h
hle/kernel/time_manager.cpp
hle/kernel/time_manager.h
hle/kernel/transfer_memory.cpp
hle/kernel/transfer_memory.h
hle/kernel/vm_manager.cpp

View file

@ -27,6 +27,7 @@
#include "core/hle/kernel/scheduler.h"
#include "core/hle/kernel/synchronization.h"
#include "core/hle/kernel/thread.h"
#include "core/hle/kernel/time_manager.h"
#include "core/hle/lock.h"
#include "core/hle/result.h"
#include "core/memory.h"
@ -100,7 +101,7 @@ static void ThreadWakeupCallback(u64 thread_handle, [[maybe_unused]] s64 cycles_
struct KernelCore::Impl {
explicit Impl(Core::System& system, KernelCore& kernel)
: system{system}, global_scheduler{kernel}, synchronization{system} {}
: system{system}, global_scheduler{kernel}, synchronization{system}, time_manager{system} {}
void Initialize(KernelCore& kernel) {
Shutdown();
@ -238,6 +239,7 @@ struct KernelCore::Impl {
Process* current_process = nullptr;
Kernel::GlobalScheduler global_scheduler;
Kernel::Synchronization synchronization;
Kernel::TimeManager time_manager;
std::shared_ptr<ResourceLimit> system_resource_limit;
@ -337,6 +339,14 @@ const Kernel::Synchronization& KernelCore::Synchronization() const {
return impl->synchronization;
}
Kernel::TimeManager& KernelCore::TimeManager() {
return impl->time_manager;
}
const Kernel::TimeManager& KernelCore::TimeManager() const {
return impl->time_manager;
}
Core::ExclusiveMonitor& KernelCore::GetExclusiveMonitor() {
return *impl->exclusive_monitor;
}

View file

@ -33,6 +33,7 @@ class ResourceLimit;
class Scheduler;
class Synchronization;
class Thread;
class TimeManager;
/// Represents a single instance of the kernel.
class KernelCore {
@ -107,6 +108,12 @@ public:
/// Gets the an instance of the Synchronization Interface.
const Kernel::Synchronization& Synchronization() const;
/// Gets the an instance of the TimeManager Interface.
Kernel::TimeManager& TimeManager();
/// Gets the an instance of the TimeManager Interface.
const Kernel::TimeManager& TimeManager() const;
/// Stops execution of 'id' core, in order to reschedule a new thread.
void PrepareReschedule(std::size_t id);

View file

@ -0,0 +1,42 @@
// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "core/core.h"
#include "core/core_timing.h"
#include "core/core_timing_util.h"
#include "core/hle/kernel/handle_table.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/thread.h"
#include "core/hle/kernel/time_manager.h"
namespace Kernel {
TimeManager::TimeManager(Core::System& system) : system{system} {
time_manager_event_type = Core::Timing::CreateEvent(
"Kernel::TimeManagerCallback", [this](u64 thread_handle, [[maybe_unused]] s64 cycles_late) {
Handle proper_handle = static_cast<Handle>(thread_handle);
std::shared_ptr<Thread> thread =
this->system.Kernel().RetrieveThreadFromGlobalHandleTable(proper_handle);
thread->ResumeFromWait();
});
}
void TimeManager::ScheduleTimeEvent(Handle& event_handle, Thread* timetask, s64 nanoseconds) {
if (nanoseconds > 0) {
ASSERT(timetask);
event_handle = timetask->GetGlobalHandle();
const s64 cycles = Core::Timing::nsToCycles(std::chrono::nanoseconds{nanoseconds});
system.CoreTiming().ScheduleEvent(cycles, time_manager_event_type, event_handle);
} else {
event_handle = InvalidHandle;
}
}
void TimeManager::UnscheduleTimeEvent(Handle event_handle) {
if (event_handle != InvalidHandle) {
system.CoreTiming().UnscheduleEvent(time_manager_event_type, event_handle);
}
}
} // namespace Kernel

View file

@ -0,0 +1,36 @@
// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include "core/hle/kernel/object.h"
namespace Core {
class System;
} // namespace Core
namespace Core::Timing {
struct EventType;
} // namespace Core::Timing
namespace Kernel {
class Thread;
class TimeManager {
public:
TimeManager(Core::System& system);
void ScheduleTimeEvent(Handle& event_handle, Thread* timetask, s64 nanoseconds);
void UnscheduleTimeEvent(Handle event_handle);
private:
Core::System& system;
std::shared_ptr<Core::Timing::EventType> time_manager_event_type;
};
} // namespace Kernel