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// Copyright 2014 Citra Emulator Project / PPSSPP Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <string>
#include <unordered_map>
#include "core/hle/kernel/object.h"
template <typename T>
class ResultVal;
namespace CoreTiming {
struct EventType;
}
namespace Kernel {
class ClientPort;
class HandleTable;
class Process;
class ResourceLimit;
class Thread;
class Timer;
/// Represents a single instance of the kernel.
class KernelCore {
private:
using NamedPortTable = std::unordered_map<std::string, SharedPtr<ClientPort>>;
public:
KernelCore();
~KernelCore();
KernelCore(const KernelCore&) = delete;
KernelCore& operator=(const KernelCore&) = delete;
KernelCore(KernelCore&&) = delete;
KernelCore& operator=(KernelCore&&) = delete;
/// Resets the kernel to a clean slate for use.
void Initialize();
/// Clears all resources in use by the kernel instance.
void Shutdown();
/// Retrieves a shared pointer to the system resource limit instance.
SharedPtr<ResourceLimit> GetSystemResourceLimit() const;
/// Retrieves a shared pointer to a Thread instance within the thread wakeup handle table.
SharedPtr<Thread> RetrieveThreadFromWakeupCallbackHandleTable(Handle handle) const;
/// Retrieves a shared pointer to a Timer instance within the timer callback handle table.
SharedPtr<Timer> RetrieveTimerFromCallbackHandleTable(Handle handle) const;
/// Adds the given shared pointer to an internal list of active processes.
void AppendNewProcess(SharedPtr<Process> process);
/// Makes the given process the new current process.
void MakeCurrentProcess(Process* process);
/// Retrieves a pointer to the current process.
Process* CurrentProcess();
/// Retrieves a const pointer to the current process.
const Process* CurrentProcess() const;
/// Adds a port to the named port table
void AddNamedPort(std::string name, SharedPtr<ClientPort> port);
/// Finds a port within the named port table with the given name.
NamedPortTable::iterator FindNamedPort(const std::string& name);
/// Finds a port within the named port table with the given name.
NamedPortTable::const_iterator FindNamedPort(const std::string& name) const;
/// Determines whether or not the given port is a valid named port.
bool IsValidNamedPort(NamedPortTable::const_iterator port) const;
private:
friend class Object;
friend class Process;
friend class Thread;
friend class Timer;
/// Creates a new object ID, incrementing the internal object ID counter.
u32 CreateNewObjectID();
/// Creates a new process ID, incrementing the internal process ID counter;
u32 CreateNewProcessID();
/// Creates a new thread ID, incrementing the internal thread ID counter.
u32 CreateNewThreadID();
/// Creates a timer callback handle for the given timer.
ResultVal<Handle> CreateTimerCallbackHandle(const SharedPtr<Timer>& timer);
/// Retrieves the event type used for thread wakeup callbacks.
CoreTiming::EventType* ThreadWakeupCallbackEventType() const;
/// Retrieves the event type used for timer callbacks.
CoreTiming::EventType* TimerCallbackEventType() const;
/// Provides a reference to the thread wakeup callback handle table.
Kernel::HandleTable& ThreadWakeupCallbackHandleTable();
/// Provides a const reference to the thread wakeup callback handle table.
const Kernel::HandleTable& ThreadWakeupCallbackHandleTable() const;
struct Impl;
std::unique_ptr<Impl> impl;
};
} // namespace Kernel
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