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core/hle/kernel: Make Mutex a per-process class.
Makes it an instantiable class like it is in the actual kernel. This will also allow removing reliance on global accessors in a following change, now that we can encapsulate a reference to the system instance in the class.
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2d9546848e
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555cd26ec2
@ -2,7 +2,6 @@
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// Licensed under GPLv2 or any later version
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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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// Refer to the license.txt file included.
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#include <map>
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#include <utility>
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#include <utility>
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#include <vector>
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#include <vector>
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@ -10,8 +9,10 @@
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#include "core/core.h"
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#include "core/core.h"
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#include "core/hle/kernel/errors.h"
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#include "core/hle/kernel/errors.h"
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#include "core/hle/kernel/handle_table.h"
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#include "core/hle/kernel/handle_table.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/hle/kernel/mutex.h"
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#include "core/hle/kernel/mutex.h"
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#include "core/hle/kernel/object.h"
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#include "core/hle/kernel/object.h"
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#include "core/hle/kernel/process.h"
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#include "core/hle/kernel/thread.h"
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#include "core/hle/kernel/thread.h"
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#include "core/hle/result.h"
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#include "core/hle/result.h"
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#include "core/memory.h"
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#include "core/memory.h"
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@ -57,13 +58,17 @@ static void TransferMutexOwnership(VAddr mutex_addr, SharedPtr<Thread> current_t
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}
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}
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}
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}
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ResultCode Mutex::TryAcquire(HandleTable& handle_table, VAddr address, Handle holding_thread_handle,
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Mutex::Mutex(Core::System& system) : system{system} {}
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Mutex::~Mutex() = default;
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ResultCode Mutex::TryAcquire(VAddr address, Handle holding_thread_handle,
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Handle requesting_thread_handle) {
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Handle requesting_thread_handle) {
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// The mutex address must be 4-byte aligned
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// The mutex address must be 4-byte aligned
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if ((address % sizeof(u32)) != 0) {
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if ((address % sizeof(u32)) != 0) {
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return ERR_INVALID_ADDRESS;
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return ERR_INVALID_ADDRESS;
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}
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}
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const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable();
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SharedPtr<Thread> holding_thread = handle_table.Get<Thread>(holding_thread_handle);
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SharedPtr<Thread> holding_thread = handle_table.Get<Thread>(holding_thread_handle);
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SharedPtr<Thread> requesting_thread = handle_table.Get<Thread>(requesting_thread_handle);
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SharedPtr<Thread> requesting_thread = handle_table.Get<Thread>(requesting_thread_handle);
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@ -5,32 +5,34 @@
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#pragma once
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#pragma once
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#include "common/common_types.h"
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#include "common/common_types.h"
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#include "core/hle/kernel/object.h"
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union ResultCode;
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union ResultCode;
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namespace Kernel {
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namespace Core {
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class System;
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}
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class HandleTable;
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namespace Kernel {
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class Thread;
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class Mutex final {
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class Mutex final {
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public:
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public:
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explicit Mutex(Core::System& system);
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~Mutex();
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/// Flag that indicates that a mutex still has threads waiting for it.
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/// Flag that indicates that a mutex still has threads waiting for it.
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static constexpr u32 MutexHasWaitersFlag = 0x40000000;
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static constexpr u32 MutexHasWaitersFlag = 0x40000000;
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/// Mask of the bits in a mutex address value that contain the mutex owner.
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/// Mask of the bits in a mutex address value that contain the mutex owner.
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static constexpr u32 MutexOwnerMask = 0xBFFFFFFF;
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static constexpr u32 MutexOwnerMask = 0xBFFFFFFF;
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/// Attempts to acquire a mutex at the specified address.
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/// Attempts to acquire a mutex at the specified address.
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static ResultCode TryAcquire(HandleTable& handle_table, VAddr address,
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ResultCode TryAcquire(VAddr address, Handle holding_thread_handle,
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Handle holding_thread_handle, Handle requesting_thread_handle);
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Handle requesting_thread_handle);
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/// Releases the mutex at the specified address.
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/// Releases the mutex at the specified address.
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static ResultCode Release(VAddr address);
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ResultCode Release(VAddr address);
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private:
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private:
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Mutex() = default;
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Core::System& system;
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~Mutex() = default;
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};
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};
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} // namespace Kernel
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} // namespace Kernel
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@ -231,7 +231,8 @@ void Process::LoadModule(CodeSet module_, VAddr base_addr) {
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}
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}
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Process::Process(Core::System& system)
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Process::Process(Core::System& system)
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: WaitObject{system.Kernel()}, address_arbiter{system}, system{system} {}
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: WaitObject{system.Kernel()}, address_arbiter{system}, mutex{system}, system{system} {}
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Process::~Process() = default;
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Process::~Process() = default;
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void Process::Acquire(Thread* thread) {
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void Process::Acquire(Thread* thread) {
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@ -14,6 +14,7 @@
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#include "common/common_types.h"
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#include "common/common_types.h"
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#include "core/hle/kernel/address_arbiter.h"
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#include "core/hle/kernel/address_arbiter.h"
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#include "core/hle/kernel/handle_table.h"
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#include "core/hle/kernel/handle_table.h"
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#include "core/hle/kernel/mutex.h"
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#include "core/hle/kernel/process_capability.h"
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#include "core/hle/kernel/process_capability.h"
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#include "core/hle/kernel/vm_manager.h"
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#include "core/hle/kernel/vm_manager.h"
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#include "core/hle/kernel/wait_object.h"
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#include "core/hle/kernel/wait_object.h"
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@ -165,6 +166,16 @@ public:
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return address_arbiter;
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return address_arbiter;
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}
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}
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/// Gets a reference to the process' mutex lock.
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Mutex& GetMutex() {
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return mutex;
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}
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/// Gets a const reference to the process' mutex lock
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const Mutex& GetMutex() const {
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return mutex;
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}
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/// Gets the current status of the process
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/// Gets the current status of the process
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ProcessStatus GetStatus() const {
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ProcessStatus GetStatus() const {
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return status;
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return status;
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@ -327,6 +338,11 @@ private:
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/// Per-process address arbiter.
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/// Per-process address arbiter.
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AddressArbiter address_arbiter;
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AddressArbiter address_arbiter;
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/// The per-process mutex lock instance used for handling various
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/// forms of services, such as lock arbitration, and condition
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/// variable related facilities.
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Mutex mutex;
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/// Random values for svcGetInfo RandomEntropy
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/// Random values for svcGetInfo RandomEntropy
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std::array<u64, RANDOM_ENTROPY_SIZE> random_entropy;
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std::array<u64, RANDOM_ENTROPY_SIZE> random_entropy;
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@ -551,9 +551,9 @@ static ResultCode ArbitrateLock(Handle holding_thread_handle, VAddr mutex_addr,
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return ERR_INVALID_ADDRESS;
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return ERR_INVALID_ADDRESS;
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}
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}
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auto& handle_table = Core::CurrentProcess()->GetHandleTable();
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auto* const current_process = Core::System::GetInstance().Kernel().CurrentProcess();
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return Mutex::TryAcquire(handle_table, mutex_addr, holding_thread_handle,
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return current_process->GetMutex().TryAcquire(mutex_addr, holding_thread_handle,
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requesting_thread_handle);
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requesting_thread_handle);
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}
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}
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/// Unlock a mutex
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/// Unlock a mutex
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@ -571,7 +571,8 @@ static ResultCode ArbitrateUnlock(VAddr mutex_addr) {
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return ERR_INVALID_ADDRESS;
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return ERR_INVALID_ADDRESS;
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}
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}
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return Mutex::Release(mutex_addr);
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auto* const current_process = Core::System::GetInstance().Kernel().CurrentProcess();
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return current_process->GetMutex().Release(mutex_addr);
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}
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}
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enum class BreakType : u32 {
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enum class BreakType : u32 {
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@ -1336,11 +1337,15 @@ static ResultCode WaitProcessWideKeyAtomic(VAddr mutex_addr, VAddr condition_var
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"called mutex_addr={:X}, condition_variable_addr={:X}, thread_handle=0x{:08X}, timeout={}",
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"called mutex_addr={:X}, condition_variable_addr={:X}, thread_handle=0x{:08X}, timeout={}",
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mutex_addr, condition_variable_addr, thread_handle, nano_seconds);
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mutex_addr, condition_variable_addr, thread_handle, nano_seconds);
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const auto& handle_table = Core::CurrentProcess()->GetHandleTable();
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auto* const current_process = Core::System::GetInstance().Kernel().CurrentProcess();
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const auto& handle_table = current_process->GetHandleTable();
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SharedPtr<Thread> thread = handle_table.Get<Thread>(thread_handle);
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SharedPtr<Thread> thread = handle_table.Get<Thread>(thread_handle);
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ASSERT(thread);
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ASSERT(thread);
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CASCADE_CODE(Mutex::Release(mutex_addr));
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const auto release_result = current_process->GetMutex().Release(mutex_addr);
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if (release_result.IsError()) {
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return release_result;
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}
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SharedPtr<Thread> current_thread = GetCurrentThread();
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SharedPtr<Thread> current_thread = GetCurrentThread();
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current_thread->SetCondVarWaitAddress(condition_variable_addr);
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current_thread->SetCondVarWaitAddress(condition_variable_addr);
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