suyu/src/core/hle/kernel/kernel.h
Zach Hilman fc0bf91a96 kernel: Differentiate kernel and user processes when picking ID
This allows kernel internal type processes to be assigned IDs in the KIP range while userland processes are assigned in the user range.
2019-06-10 00:28:33 -04:00

120 lines
3.8 KiB
C++

// 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"
namespace Core {
class System;
}
namespace Core::Timing {
class CoreTiming;
struct EventType;
} // namespace Core::Timing
namespace Kernel {
class AddressArbiter;
class ClientPort;
class HandleTable;
class Process;
class ResourceLimit;
class Thread;
/// Represents a single instance of the kernel.
class KernelCore {
private:
using NamedPortTable = std::unordered_map<std::string, SharedPtr<ClientPort>>;
public:
/// Constructs an instance of the kernel using the given System
/// instance as a context for any necessary system-related state,
/// such as threads, CPU core state, etc.
///
/// @post After execution of the constructor, the provided System
/// object *must* outlive the kernel instance itself.
///
explicit KernelCore(Core::System& system);
~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;
/// 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;
/// Retrieves the list of processes.
const std::vector<SharedPtr<Process>>& GetProcessList() 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;
/// Creates a new object ID, incrementing the internal object ID counter.
u32 CreateNewObjectID();
/// Creates a new process ID, incrementing the internal process ID counter;
u64 CreateNewKernelProcessID();
/// Creates a new process ID, incrementing the internal process ID counter;
u64 CreateNewUserProcessID();
/// Creates a new thread ID, incrementing the internal thread ID counter.
u64 CreateNewThreadID();
/// Retrieves the event type used for thread wakeup callbacks.
Core::Timing::EventType* ThreadWakeupCallbackEventType() 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