251 lines
8.0 KiB
C++
251 lines
8.0 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 <vector>
|
|
|
|
#include <boost/container/flat_set.hpp>
|
|
|
|
#include "common/common_types.h"
|
|
|
|
#include "core/core.h"
|
|
#include "core/mem_map.h"
|
|
|
|
#include "core/hle/kernel/kernel.h"
|
|
#include "core/hle/result.h"
|
|
|
|
enum ThreadPriority : s32{
|
|
THREADPRIO_HIGHEST = 0, ///< Highest thread priority
|
|
THREADPRIO_USERLAND_MAX = 24, ///< Highest thread priority for userland apps
|
|
THREADPRIO_DEFAULT = 48, ///< Default thread priority for userland apps
|
|
THREADPRIO_LOWEST = 63, ///< Lowest thread priority
|
|
};
|
|
|
|
enum ThreadProcessorId : s32 {
|
|
THREADPROCESSORID_DEFAULT = -2, ///< Run thread on default core specified by exheader
|
|
THREADPROCESSORID_ALL = -1, ///< Run thread on either core
|
|
THREADPROCESSORID_0 = 0, ///< Run thread on core 0 (AppCore)
|
|
THREADPROCESSORID_1 = 1, ///< Run thread on core 1 (SysCore)
|
|
THREADPROCESSORID_MAX = 2, ///< Processor ID must be less than this
|
|
};
|
|
|
|
enum ThreadStatus {
|
|
THREADSTATUS_RUNNING, ///< Currently running
|
|
THREADSTATUS_READY, ///< Ready to run
|
|
THREADSTATUS_WAIT_ARB, ///< Waiting on an address arbiter
|
|
THREADSTATUS_WAIT_SLEEP, ///< Waiting due to a SleepThread SVC
|
|
THREADSTATUS_WAIT_SYNCH, ///< Waiting due to a WaitSynchronization SVC
|
|
THREADSTATUS_DORMANT, ///< Created but not yet made ready
|
|
THREADSTATUS_DEAD ///< Run to completion, or forcefully terminated
|
|
};
|
|
|
|
namespace Kernel {
|
|
|
|
class Mutex;
|
|
|
|
class Thread final : public WaitObject {
|
|
public:
|
|
/**
|
|
* Creates and returns a new thread. The new thread is immediately scheduled
|
|
* @param name The friendly name desired for the thread
|
|
* @param entry_point The address at which the thread should start execution
|
|
* @param priority The thread's priority
|
|
* @param arg User data to pass to the thread
|
|
* @param processor_id The ID(s) of the processors on which the thread is desired to be run
|
|
* @param stack_top The address of the thread's stack top
|
|
* @param stack_size The size of the thread's stack
|
|
* @return A shared pointer to the newly created thread
|
|
*/
|
|
static ResultVal<SharedPtr<Thread>> Create(std::string name, VAddr entry_point, s32 priority,
|
|
u32 arg, s32 processor_id, VAddr stack_top);
|
|
|
|
std::string GetName() const override { return name; }
|
|
std::string GetTypeName() const override { return "Thread"; }
|
|
|
|
static const HandleType HANDLE_TYPE = HandleType::Thread;
|
|
HandleType GetHandleType() const override { return HANDLE_TYPE; }
|
|
|
|
bool ShouldWait() override;
|
|
void Acquire() override;
|
|
|
|
/**
|
|
* Checks if the thread is an idle (stub) thread
|
|
* @return True if the thread is an idle (stub) thread, false otherwise
|
|
*/
|
|
inline bool IsIdle() const { return idle; }
|
|
|
|
/**
|
|
* Gets the thread's current priority
|
|
* @return The current thread's priority
|
|
*/
|
|
s32 GetPriority() const { return current_priority; }
|
|
|
|
/**
|
|
* Sets the thread's current priority
|
|
* @param priority The new priority
|
|
*/
|
|
void SetPriority(s32 priority);
|
|
|
|
/**
|
|
* Temporarily boosts the thread's priority until the next time it is scheduled
|
|
* @param priority The new priority
|
|
*/
|
|
void BoostPriority(s32 priority);
|
|
|
|
/**
|
|
* Gets the thread's thread ID
|
|
* @return The thread's ID
|
|
*/
|
|
u32 GetThreadId() const { return thread_id; }
|
|
|
|
/**
|
|
* Release an acquired wait object
|
|
* @param wait_object WaitObject to release
|
|
*/
|
|
void ReleaseWaitObject(WaitObject* wait_object);
|
|
|
|
/**
|
|
* Resumes a thread from waiting
|
|
*/
|
|
void ResumeFromWait();
|
|
|
|
/**
|
|
* Schedules an event to wake up the specified thread after the specified delay
|
|
* @param nanoseconds The time this thread will be allowed to sleep for
|
|
*/
|
|
void WakeAfterDelay(s64 nanoseconds);
|
|
|
|
/**
|
|
* Sets the result after the thread awakens (from either WaitSynchronization SVC)
|
|
* @param result Value to set to the returned result
|
|
*/
|
|
void SetWaitSynchronizationResult(ResultCode result);
|
|
|
|
/**
|
|
* Sets the output parameter value after the thread awakens (from WaitSynchronizationN SVC only)
|
|
* @param output Value to set to the output parameter
|
|
*/
|
|
void SetWaitSynchronizationOutput(s32 output);
|
|
|
|
/**
|
|
* Stops a thread, invalidating it from further use
|
|
*/
|
|
void Stop();
|
|
|
|
/*
|
|
* Returns the Thread Local Storage address of the current thread
|
|
* @returns VAddr of the thread's TLS
|
|
*/
|
|
VAddr GetTLSAddress() const;
|
|
|
|
Core::ThreadContext context;
|
|
|
|
u32 thread_id;
|
|
|
|
u32 status;
|
|
u32 entry_point;
|
|
u32 stack_top;
|
|
|
|
s32 nominal_priority; ///< Nominal thread priority, as set by the emulated application
|
|
s32 current_priority; ///< Current thread priority, can be temporarily changed
|
|
|
|
u64 last_running_ticks; ///< CPU tick when thread was last running
|
|
|
|
s32 processor_id;
|
|
|
|
VAddr tls_address; ///< Address of the Thread Local Storage of the thread
|
|
|
|
/// Mutexes currently held by this thread, which will be released when it exits.
|
|
boost::container::flat_set<SharedPtr<Mutex>> held_mutexes;
|
|
|
|
std::vector<SharedPtr<WaitObject>> wait_objects; ///< Objects that the thread is waiting on
|
|
VAddr wait_address; ///< If waiting on an AddressArbiter, this is the arbitration address
|
|
bool wait_all; ///< True if the thread is waiting on all objects before resuming
|
|
bool wait_set_output; ///< True if the output parameter should be set on thread wakeup
|
|
|
|
std::string name;
|
|
|
|
/// Whether this thread is intended to never actually be executed, i.e. always idle
|
|
bool idle = false;
|
|
|
|
private:
|
|
Thread();
|
|
~Thread() override;
|
|
|
|
/// Handle used as userdata to reference this object when inserting into the CoreTiming queue.
|
|
Handle callback_handle;
|
|
};
|
|
|
|
/**
|
|
* Sets up the primary application thread
|
|
* @param stack_size The size of the thread's stack
|
|
* @param entry_point The address at which the thread should start execution
|
|
* @param priority The priority to give the main thread
|
|
* @return A shared pointer to the main thread
|
|
*/
|
|
SharedPtr<Thread> SetupMainThread(u32 stack_size, u32 entry_point, s32 priority);
|
|
|
|
/**
|
|
* Reschedules to the next available thread (call after current thread is suspended)
|
|
*/
|
|
void Reschedule();
|
|
|
|
/**
|
|
* Arbitrate the highest priority thread that is waiting
|
|
* @param address The address for which waiting threads should be arbitrated
|
|
*/
|
|
Thread* ArbitrateHighestPriorityThread(u32 address);
|
|
|
|
/**
|
|
* Arbitrate all threads currently waiting.
|
|
* @param address The address for which waiting threads should be arbitrated
|
|
*/
|
|
void ArbitrateAllThreads(u32 address);
|
|
|
|
/**
|
|
* Gets the current thread
|
|
*/
|
|
Thread* GetCurrentThread();
|
|
|
|
/**
|
|
* Waits the current thread on a sleep
|
|
*/
|
|
void WaitCurrentThread_Sleep();
|
|
|
|
/**
|
|
* Waits the current thread from a WaitSynchronization call
|
|
* @param wait_objects Kernel objects that we are waiting on
|
|
* @param wait_set_output If true, set the output parameter on thread wakeup (for WaitSynchronizationN only)
|
|
* @param wait_all If true, wait on all objects before resuming (for WaitSynchronizationN only)
|
|
*/
|
|
void WaitCurrentThread_WaitSynchronization(std::vector<SharedPtr<WaitObject>> wait_objects, bool wait_set_output, bool wait_all);
|
|
|
|
/**
|
|
* Waits the current thread from an ArbitrateAddress call
|
|
* @param wait_address Arbitration address used to resume from wait
|
|
*/
|
|
void WaitCurrentThread_ArbitrateAddress(VAddr wait_address);
|
|
|
|
/**
|
|
* Sets up the idle thread, this is a thread that is intended to never execute instructions,
|
|
* only to advance the timing. It is scheduled when there are no other ready threads in the thread queue
|
|
* and will try to yield on every call.
|
|
* @return The handle of the idle thread
|
|
*/
|
|
SharedPtr<Thread> SetupIdleThread();
|
|
|
|
/**
|
|
* Initialize threading
|
|
*/
|
|
void ThreadingInit();
|
|
|
|
/**
|
|
* Shutdown threading
|
|
*/
|
|
void ThreadingShutdown();
|
|
|
|
} // namespace
|