114 lines
3.5 KiB
C++
114 lines
3.5 KiB
C++
// Copyright 2014 Citra Emulator Project / PPSSPP Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <string>
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#include <unordered_map>
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#include "core/hle/kernel/object.h"
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namespace Core {
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class System;
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}
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namespace Core::Timing {
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class CoreTiming;
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struct EventType;
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} // namespace Core::Timing
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namespace Kernel {
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class AddressArbiter;
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class ClientPort;
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class HandleTable;
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class Process;
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class ResourceLimit;
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class Thread;
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/// Represents a single instance of the kernel.
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class KernelCore {
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private:
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using NamedPortTable = std::unordered_map<std::string, SharedPtr<ClientPort>>;
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public:
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/// Constructs an instance of the kernel using the given System
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/// instance as a context for any necessary system-related state,
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/// such as threads, CPU core state, etc.
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///
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/// @post After execution of the constructor, the provided System
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/// object *must* outlive the kernel instance itself.
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///
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explicit KernelCore(Core::System& system);
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~KernelCore();
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KernelCore(const KernelCore&) = delete;
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KernelCore& operator=(const KernelCore&) = delete;
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KernelCore(KernelCore&&) = delete;
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KernelCore& operator=(KernelCore&&) = delete;
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/// Resets the kernel to a clean slate for use.
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void Initialize();
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/// Clears all resources in use by the kernel instance.
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void Shutdown();
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/// Retrieves a shared pointer to the system resource limit instance.
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SharedPtr<ResourceLimit> GetSystemResourceLimit() const;
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/// Retrieves a shared pointer to a Thread instance within the thread wakeup handle table.
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SharedPtr<Thread> RetrieveThreadFromWakeupCallbackHandleTable(Handle handle) const;
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/// Adds the given shared pointer to an internal list of active processes.
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void AppendNewProcess(SharedPtr<Process> process);
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/// Makes the given process the new current process.
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void MakeCurrentProcess(Process* process);
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/// Retrieves a pointer to the current process.
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Process* CurrentProcess();
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/// Retrieves a const pointer to the current process.
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const Process* CurrentProcess() const;
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/// Adds a port to the named port table
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void AddNamedPort(std::string name, SharedPtr<ClientPort> port);
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/// Finds a port within the named port table with the given name.
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NamedPortTable::iterator FindNamedPort(const std::string& name);
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/// Finds a port within the named port table with the given name.
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NamedPortTable::const_iterator FindNamedPort(const std::string& name) const;
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/// Determines whether or not the given port is a valid named port.
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bool IsValidNamedPort(NamedPortTable::const_iterator port) const;
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private:
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friend class Object;
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friend class Process;
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friend class Thread;
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/// Creates a new object ID, incrementing the internal object ID counter.
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u32 CreateNewObjectID();
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/// Creates a new process ID, incrementing the internal process ID counter;
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u64 CreateNewProcessID();
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/// Creates a new thread ID, incrementing the internal thread ID counter.
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u64 CreateNewThreadID();
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/// Retrieves the event type used for thread wakeup callbacks.
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Core::Timing::EventType* ThreadWakeupCallbackEventType() const;
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/// Provides a reference to the thread wakeup callback handle table.
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Kernel::HandleTable& ThreadWakeupCallbackHandleTable();
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/// Provides a const reference to the thread wakeup callback handle table.
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const Kernel::HandleTable& ThreadWakeupCallbackHandleTable() const;
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struct Impl;
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std::unique_ptr<Impl> impl;
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};
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} // namespace Kernel
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