mirror of
https://git.suyu.dev/suyu/suyu.git
synced 2024-11-25 04:46:27 -05:00
73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
// Copyright 2014 Citra Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#pragma once
|
|
|
|
#include <vector>
|
|
#include <boost/smart_ptr/intrusive_ptr.hpp>
|
|
#include "common/common_types.h"
|
|
#include "core/hle/kernel/kernel.h"
|
|
|
|
namespace Kernel {
|
|
|
|
class Thread;
|
|
|
|
/// Class that represents a Kernel object that a thread can be waiting on
|
|
class WaitObject : public Object {
|
|
public:
|
|
/**
|
|
* Check if the specified thread should wait until the object is available
|
|
* @param thread The thread about which we're deciding.
|
|
* @return True if the current thread should wait due to this object being unavailable
|
|
*/
|
|
virtual bool ShouldWait(Thread* thread) const = 0;
|
|
|
|
/// Acquire/lock the object for the specified thread if it is available
|
|
virtual void Acquire(Thread* thread) = 0;
|
|
|
|
/**
|
|
* Add a thread to wait on this object
|
|
* @param thread Pointer to thread to add
|
|
*/
|
|
virtual void AddWaitingThread(SharedPtr<Thread> thread);
|
|
|
|
/**
|
|
* Removes a thread from waiting on this object (e.g. if it was resumed already)
|
|
* @param thread Pointer to thread to remove
|
|
*/
|
|
virtual void RemoveWaitingThread(Thread* thread);
|
|
|
|
/**
|
|
* Wake up all threads waiting on this object that can be awoken, in priority order,
|
|
* and set the synchronization result and output of the thread.
|
|
*/
|
|
virtual void WakeupAllWaitingThreads();
|
|
|
|
/**
|
|
* Wakes up a single thread waiting on this object.
|
|
* @param thread Thread that is waiting on this object to wakeup.
|
|
*/
|
|
void WakeupWaitingThread(SharedPtr<Thread> thread);
|
|
|
|
/// Obtains the highest priority thread that is ready to run from this object's waiting list.
|
|
SharedPtr<Thread> GetHighestPriorityReadyThread();
|
|
|
|
/// Get a const reference to the waiting threads list for debug use
|
|
const std::vector<SharedPtr<Thread>>& GetWaitingThreads() const;
|
|
|
|
private:
|
|
/// Threads waiting for this object to become available
|
|
std::vector<SharedPtr<Thread>> waiting_threads;
|
|
};
|
|
|
|
// Specialization of DynamicObjectCast for WaitObjects
|
|
template <>
|
|
inline SharedPtr<WaitObject> DynamicObjectCast<WaitObject>(SharedPtr<Object> object) {
|
|
if (object != nullptr && object->IsWaitable()) {
|
|
return boost::static_pointer_cast<WaitObject>(std::move(object));
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
} // namespace Kernel
|