From 64ecf81a3cf6d6e0a4e4e915e1da2f0bcf2f1cb4 Mon Sep 17 00:00:00 2001 From: Yuri Kunde Schlesner Date: Mon, 29 May 2017 15:45:30 -0700 Subject: Kernel: Move WaitObject to a separate file Now that HandleTable doesn't directly depend on WaitObject anymore, this can be separated from the main kernel.h header. --- src/citra_qt/debugger/wait_tree.cpp | 1 + src/citra_qt/debugger/wait_tree.h | 4 +- src/core/CMakeLists.txt | 2 + src/core/hle/kernel/event.h | 1 + src/core/hle/kernel/kernel.cpp | 79 ---------------------------- src/core/hle/kernel/kernel.h | 53 ------------------- src/core/hle/kernel/mutex.h | 1 + src/core/hle/kernel/semaphore.h | 1 + src/core/hle/kernel/server_port.h | 1 + src/core/hle/kernel/server_session.h | 1 + src/core/hle/kernel/thread.h | 1 + src/core/hle/kernel/timer.h | 1 + src/core/hle/kernel/wait_object.cpp | 99 ++++++++++++++++++++++++++++++++++++ src/core/hle/kernel/wait_object.h | 67 ++++++++++++++++++++++++ src/core/hle/svc.cpp | 1 + 15 files changed, 178 insertions(+), 135 deletions(-) create mode 100644 src/core/hle/kernel/wait_object.cpp create mode 100644 src/core/hle/kernel/wait_object.h (limited to 'src') diff --git a/src/citra_qt/debugger/wait_tree.cpp b/src/citra_qt/debugger/wait_tree.cpp index b6ecf3819..8c244b6b2 100644 --- a/src/citra_qt/debugger/wait_tree.cpp +++ b/src/citra_qt/debugger/wait_tree.cpp @@ -10,6 +10,7 @@ #include "core/hle/kernel/semaphore.h" #include "core/hle/kernel/thread.h" #include "core/hle/kernel/timer.h" +#include "core/hle/kernel/wait_object.h" WaitTreeItem::~WaitTreeItem() {} diff --git a/src/citra_qt/debugger/wait_tree.h b/src/citra_qt/debugger/wait_tree.h index ee9708fc1..06ef58ea7 100644 --- a/src/citra_qt/debugger/wait_tree.h +++ b/src/citra_qt/debugger/wait_tree.h @@ -4,12 +4,10 @@ #pragma once -#include - #include #include #include - +#include #include "core/core.h" #include "core/hle/kernel/kernel.h" diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt index 7aa81e885..ba24a6e02 100644 --- a/src/core/CMakeLists.txt +++ b/src/core/CMakeLists.txt @@ -57,6 +57,7 @@ set(SRCS hle/kernel/thread.cpp hle/kernel/timer.cpp hle/kernel/vm_manager.cpp + hle/kernel/wait_object.cpp hle/service/ac/ac.cpp hle/service/ac/ac_i.cpp hle/service/ac/ac_u.cpp @@ -249,6 +250,7 @@ set(HEADERS hle/kernel/thread.h hle/kernel/timer.h hle/kernel/vm_manager.h + hle/kernel/wait_object.h hle/result.h hle/service/ac/ac.h hle/service/ac/ac_i.h diff --git a/src/core/hle/kernel/event.h b/src/core/hle/kernel/event.h index 3e3673508..cc41abb85 100644 --- a/src/core/hle/kernel/event.h +++ b/src/core/hle/kernel/event.h @@ -6,6 +6,7 @@ #include "common/common_types.h" #include "core/hle/kernel/kernel.h" +#include "core/hle/kernel/wait_object.h" namespace Kernel { diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp index 7f84e01aa..b0af5b9b8 100644 --- a/src/core/hle/kernel/kernel.cpp +++ b/src/core/hle/kernel/kernel.cpp @@ -20,85 +20,6 @@ namespace Kernel { unsigned int Object::next_object_id; HandleTable g_handle_table; -void WaitObject::AddWaitingThread(SharedPtr thread) { - auto itr = std::find(waiting_threads.begin(), waiting_threads.end(), thread); - if (itr == waiting_threads.end()) - waiting_threads.push_back(std::move(thread)); -} - -void WaitObject::RemoveWaitingThread(Thread* thread) { - auto itr = std::find(waiting_threads.begin(), waiting_threads.end(), thread); - // If a thread passed multiple handles to the same object, - // the kernel might attempt to remove the thread from the object's - // waiting threads list multiple times. - if (itr != waiting_threads.end()) - waiting_threads.erase(itr); -} - -SharedPtr WaitObject::GetHighestPriorityReadyThread() { - Thread* candidate = nullptr; - s32 candidate_priority = THREADPRIO_LOWEST + 1; - - for (const auto& thread : waiting_threads) { - // The list of waiting threads must not contain threads that are not waiting to be awakened. - ASSERT_MSG(thread->status == THREADSTATUS_WAIT_SYNCH_ANY || - thread->status == THREADSTATUS_WAIT_SYNCH_ALL, - "Inconsistent thread statuses in waiting_threads"); - - if (thread->current_priority >= candidate_priority) - continue; - - if (ShouldWait(thread.get())) - continue; - - // A thread is ready to run if it's either in THREADSTATUS_WAIT_SYNCH_ANY or - // in THREADSTATUS_WAIT_SYNCH_ALL and the rest of the objects it is waiting on are ready. - bool ready_to_run = true; - if (thread->status == THREADSTATUS_WAIT_SYNCH_ALL) { - ready_to_run = std::none_of(thread->wait_objects.begin(), thread->wait_objects.end(), - [&thread](const SharedPtr& object) { - return object->ShouldWait(thread.get()); - }); - } - - if (ready_to_run) { - candidate = thread.get(); - candidate_priority = thread->current_priority; - } - } - - return candidate; -} - -void WaitObject::WakeupAllWaitingThreads() { - while (auto thread = GetHighestPriorityReadyThread()) { - if (!thread->IsSleepingOnWaitAll()) { - Acquire(thread.get()); - // Set the output index of the WaitSynchronizationN call to the index of this object. - if (thread->wait_set_output) { - thread->SetWaitSynchronizationOutput(thread->GetWaitObjectIndex(this)); - thread->wait_set_output = false; - } - } else { - for (auto& object : thread->wait_objects) { - object->Acquire(thread.get()); - } - // Note: This case doesn't update the output index of WaitSynchronizationN. - } - - for (auto& object : thread->wait_objects) - object->RemoveWaitingThread(thread.get()); - thread->wait_objects.clear(); - - thread->SetWaitSynchronizationResult(RESULT_SUCCESS); - thread->ResumeFromWait(); - } -} - -const std::vector>& WaitObject::GetWaitingThreads() const { - return waiting_threads; -} - HandleTable::HandleTable() { next_generation = 1; Clear(); diff --git a/src/core/hle/kernel/kernel.h b/src/core/hle/kernel/kernel.h index 4344264dc..5335a961d 100644 --- a/src/core/hle/kernel/kernel.h +++ b/src/core/hle/kernel/kernel.h @@ -17,8 +17,6 @@ namespace Kernel { using Handle = u32; -class Thread; - enum KernelHandle : Handle { CurrentThread = 0xFFFF8000, CurrentProcess = 0xFFFF8001, @@ -133,57 +131,6 @@ inline SharedPtr DynamicObjectCast(SharedPtr object) { return nullptr; } -/// Class that represents a Kernel object that a thread can be waiting on -class WaitObject : public Object { -public: - /** - * Check if the specified thread should wait until the object is available - * @param thread The thread about which we're deciding. - * @return True if the current thread should wait due to this object being unavailable - */ - virtual bool ShouldWait(Thread* thread) const = 0; - - /// Acquire/lock the object for the specified thread if it is available - virtual void Acquire(Thread* thread) = 0; - - /** - * Add a thread to wait on this object - * @param thread Pointer to thread to add - */ - virtual void AddWaitingThread(SharedPtr thread); - - /** - * Removes a thread from waiting on this object (e.g. if it was resumed already) - * @param thread Pointer to thread to remove - */ - virtual void RemoveWaitingThread(Thread* thread); - - /** - * Wake up all threads waiting on this object that can be awoken, in priority order, - * and set the synchronization result and output of the thread. - */ - virtual void WakeupAllWaitingThreads(); - - /// Obtains the highest priority thread that is ready to run from this object's waiting list. - SharedPtr GetHighestPriorityReadyThread(); - - /// Get a const reference to the waiting threads list for debug use - const std::vector>& GetWaitingThreads() const; - -private: - /// Threads waiting for this object to become available - std::vector> waiting_threads; -}; - -// Specialization of DynamicObjectCast for WaitObjects -template <> -inline SharedPtr DynamicObjectCast(SharedPtr object) { - if (object != nullptr && object->IsWaitable()) { - return boost::static_pointer_cast(std::move(object)); - } - return nullptr; -} - /** * This class allows the creation of Handles, which are references to objects that can be tested * for validity and looked up. Here they are used to pass references to kernel objects to/from the diff --git a/src/core/hle/kernel/mutex.h b/src/core/hle/kernel/mutex.h index c57adf400..bacacd690 100644 --- a/src/core/hle/kernel/mutex.h +++ b/src/core/hle/kernel/mutex.h @@ -7,6 +7,7 @@ #include #include "common/common_types.h" #include "core/hle/kernel/kernel.h" +#include "core/hle/kernel/wait_object.h" namespace Kernel { diff --git a/src/core/hle/kernel/semaphore.h b/src/core/hle/kernel/semaphore.h index cde94f7cc..ca6f908aa 100644 --- a/src/core/hle/kernel/semaphore.h +++ b/src/core/hle/kernel/semaphore.h @@ -8,6 +8,7 @@ #include #include "common/common_types.h" #include "core/hle/kernel/kernel.h" +#include "core/hle/kernel/wait_object.h" namespace Kernel { diff --git a/src/core/hle/kernel/server_port.h b/src/core/hle/kernel/server_port.h index 6f8bdb6a9..2a24d8412 100644 --- a/src/core/hle/kernel/server_port.h +++ b/src/core/hle/kernel/server_port.h @@ -9,6 +9,7 @@ #include #include "common/common_types.h" #include "core/hle/kernel/kernel.h" +#include "core/hle/kernel/wait_object.h" namespace Service { class SessionRequestHandler; diff --git a/src/core/hle/kernel/server_session.h b/src/core/hle/kernel/server_session.h index c907d487c..315b80d14 100644 --- a/src/core/hle/kernel/server_session.h +++ b/src/core/hle/kernel/server_session.h @@ -11,6 +11,7 @@ #include "core/hle/kernel/kernel.h" #include "core/hle/kernel/session.h" #include "core/hle/kernel/thread.h" +#include "core/hle/kernel/wait_object.h" #include "core/hle/result.h" #include "core/hle/service/service.h" #include "core/memory.h" diff --git a/src/core/hle/kernel/thread.h b/src/core/hle/kernel/thread.h index 7b5169cfc..6a3566f15 100644 --- a/src/core/hle/kernel/thread.h +++ b/src/core/hle/kernel/thread.h @@ -12,6 +12,7 @@ #include "common/common_types.h" #include "core/arm/arm_interface.h" #include "core/hle/kernel/kernel.h" +#include "core/hle/kernel/wait_object.h" #include "core/hle/result.h" enum ThreadPriority : s32 { diff --git a/src/core/hle/kernel/timer.h b/src/core/hle/kernel/timer.h index b0f818933..82552372d 100644 --- a/src/core/hle/kernel/timer.h +++ b/src/core/hle/kernel/timer.h @@ -6,6 +6,7 @@ #include "common/common_types.h" #include "core/hle/kernel/kernel.h" +#include "core/hle/kernel/wait_object.h" namespace Kernel { diff --git a/src/core/hle/kernel/wait_object.cpp b/src/core/hle/kernel/wait_object.cpp new file mode 100644 index 000000000..f245eda6c --- /dev/null +++ b/src/core/hle/kernel/wait_object.cpp @@ -0,0 +1,99 @@ +// Copyright 2014 Citra Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include +#include "common/assert.h" +#include "common/logging/log.h" +#include "core/hle/config_mem.h" +#include "core/hle/kernel/errors.h" +#include "core/hle/kernel/kernel.h" +#include "core/hle/kernel/memory.h" +#include "core/hle/kernel/process.h" +#include "core/hle/kernel/resource_limit.h" +#include "core/hle/kernel/thread.h" +#include "core/hle/kernel/timer.h" +#include "core/hle/shared_page.h" + +namespace Kernel { + +void WaitObject::AddWaitingThread(SharedPtr thread) { + auto itr = std::find(waiting_threads.begin(), waiting_threads.end(), thread); + if (itr == waiting_threads.end()) + waiting_threads.push_back(std::move(thread)); +} + +void WaitObject::RemoveWaitingThread(Thread* thread) { + auto itr = std::find(waiting_threads.begin(), waiting_threads.end(), thread); + // If a thread passed multiple handles to the same object, + // the kernel might attempt to remove the thread from the object's + // waiting threads list multiple times. + if (itr != waiting_threads.end()) + waiting_threads.erase(itr); +} + +SharedPtr WaitObject::GetHighestPriorityReadyThread() { + Thread* candidate = nullptr; + s32 candidate_priority = THREADPRIO_LOWEST + 1; + + for (const auto& thread : waiting_threads) { + // The list of waiting threads must not contain threads that are not waiting to be awakened. + ASSERT_MSG(thread->status == THREADSTATUS_WAIT_SYNCH_ANY || + thread->status == THREADSTATUS_WAIT_SYNCH_ALL, + "Inconsistent thread statuses in waiting_threads"); + + if (thread->current_priority >= candidate_priority) + continue; + + if (ShouldWait(thread.get())) + continue; + + // A thread is ready to run if it's either in THREADSTATUS_WAIT_SYNCH_ANY or + // in THREADSTATUS_WAIT_SYNCH_ALL and the rest of the objects it is waiting on are ready. + bool ready_to_run = true; + if (thread->status == THREADSTATUS_WAIT_SYNCH_ALL) { + ready_to_run = std::none_of(thread->wait_objects.begin(), thread->wait_objects.end(), + [&thread](const SharedPtr& object) { + return object->ShouldWait(thread.get()); + }); + } + + if (ready_to_run) { + candidate = thread.get(); + candidate_priority = thread->current_priority; + } + } + + return candidate; +} + +void WaitObject::WakeupAllWaitingThreads() { + while (auto thread = GetHighestPriorityReadyThread()) { + if (!thread->IsSleepingOnWaitAll()) { + Acquire(thread.get()); + // Set the output index of the WaitSynchronizationN call to the index of this object. + if (thread->wait_set_output) { + thread->SetWaitSynchronizationOutput(thread->GetWaitObjectIndex(this)); + thread->wait_set_output = false; + } + } else { + for (auto& object : thread->wait_objects) { + object->Acquire(thread.get()); + } + // Note: This case doesn't update the output index of WaitSynchronizationN. + } + + for (auto& object : thread->wait_objects) + object->RemoveWaitingThread(thread.get()); + thread->wait_objects.clear(); + + thread->SetWaitSynchronizationResult(RESULT_SUCCESS); + thread->ResumeFromWait(); + } +} + +const std::vector>& WaitObject::GetWaitingThreads() const { + return waiting_threads; +} + +} // namespace Kernel diff --git a/src/core/hle/kernel/wait_object.h b/src/core/hle/kernel/wait_object.h new file mode 100644 index 000000000..861578186 --- /dev/null +++ b/src/core/hle/kernel/wait_object.h @@ -0,0 +1,67 @@ +// Copyright 2014 Citra Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include +#include +#include "common/common_types.h" +#include "core/hle/kernel/kernel.h" + +namespace Kernel { + +class Thread; + +/// Class that represents a Kernel object that a thread can be waiting on +class WaitObject : public Object { +public: + /** + * Check if the specified thread should wait until the object is available + * @param thread The thread about which we're deciding. + * @return True if the current thread should wait due to this object being unavailable + */ + virtual bool ShouldWait(Thread* thread) const = 0; + + /// Acquire/lock the object for the specified thread if it is available + virtual void Acquire(Thread* thread) = 0; + + /** + * Add a thread to wait on this object + * @param thread Pointer to thread to add + */ + virtual void AddWaitingThread(SharedPtr thread); + + /** + * Removes a thread from waiting on this object (e.g. if it was resumed already) + * @param thread Pointer to thread to remove + */ + virtual void RemoveWaitingThread(Thread* thread); + + /** + * Wake up all threads waiting on this object that can be awoken, in priority order, + * and set the synchronization result and output of the thread. + */ + virtual void WakeupAllWaitingThreads(); + + /// Obtains the highest priority thread that is ready to run from this object's waiting list. + SharedPtr GetHighestPriorityReadyThread(); + + /// Get a const reference to the waiting threads list for debug use + const std::vector>& GetWaitingThreads() const; + +private: + /// Threads waiting for this object to become available + std::vector> waiting_threads; +}; + +// Specialization of DynamicObjectCast for WaitObjects +template <> +inline SharedPtr DynamicObjectCast(SharedPtr object) { + if (object != nullptr && object->IsWaitable()) { + return boost::static_pointer_cast(std::move(object)); + } + return nullptr; +} + +} // namespace Kernel diff --git a/src/core/hle/svc.cpp b/src/core/hle/svc.cpp index 243c54c6e..83767677f 100644 --- a/src/core/hle/svc.cpp +++ b/src/core/hle/svc.cpp @@ -27,6 +27,7 @@ #include "core/hle/kernel/thread.h" #include "core/hle/kernel/timer.h" #include "core/hle/kernel/vm_manager.h" +#include "core/hle/kernel/wait_object.h" #include "core/hle/result.h" #include "core/hle/service/service.h" -- cgit v1.2.3