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authorSubv <subv2112@gmail.com>2018-04-20 21:42:29 +0200
committerSubv <subv2112@gmail.com>2018-04-21 04:04:32 +0200
commit5fdfbfe25adafd2734a19fe94cccc58993cb12e7 (patch)
treea4940a8231d08c5b96ce2d629acc04948ab1af3a /src/core/hle/kernel/mutex.cpp
parentKernel: Properly implemented svcWaitProcessWideKey and svcSignalProcessWideKey (diff)
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Diffstat (limited to 'src/core/hle/kernel/mutex.cpp')
-rw-r--r--src/core/hle/kernel/mutex.cpp120
1 files changed, 0 insertions, 120 deletions
diff --git a/src/core/hle/kernel/mutex.cpp b/src/core/hle/kernel/mutex.cpp
index 50a9a0805..5cc0bd266 100644
--- a/src/core/hle/kernel/mutex.cpp
+++ b/src/core/hle/kernel/mutex.cpp
@@ -40,126 +40,6 @@ static std::pair<SharedPtr<Thread>, u32> GetHighestPriorityMutexWaitingThread(VA
return {highest_priority_thread, num_waiters};
}
-void ReleaseThreadMutexes(Thread* thread) {
- for (auto& mtx : thread->held_mutexes) {
- mtx->SetHasWaiters(false);
- mtx->SetHoldingThread(nullptr);
- mtx->WakeupAllWaitingThreads();
- }
- thread->held_mutexes.clear();
-}
-
-Mutex::Mutex() {}
-Mutex::~Mutex() {}
-
-SharedPtr<Mutex> Mutex::Create(SharedPtr<Kernel::Thread> holding_thread, VAddr guest_addr,
- std::string name) {
- SharedPtr<Mutex> mutex(new Mutex);
-
- mutex->guest_addr = guest_addr;
- mutex->name = std::move(name);
-
- // If mutex was initialized with a holding thread, acquire it by the holding thread
- if (holding_thread) {
- mutex->Acquire(holding_thread.get());
- }
-
- // Mutexes are referenced by guest address, so track this in the kernel
- g_object_address_table.Insert(guest_addr, mutex);
-
- return mutex;
-}
-
-bool Mutex::ShouldWait(Thread* thread) const {
- auto holding_thread = GetHoldingThread();
- return holding_thread != nullptr && thread != holding_thread;
-}
-
-void Mutex::Acquire(Thread* thread) {
- ASSERT_MSG(!ShouldWait(thread), "object unavailable!");
-
- priority = thread->current_priority;
- thread->held_mutexes.insert(this);
- SetHoldingThread(thread);
- thread->UpdatePriority();
- Core::System::GetInstance().PrepareReschedule();
-}
-
-ResultCode Mutex::Release(Thread* thread) {
- auto holding_thread = GetHoldingThread();
- ASSERT(holding_thread);
-
- // We can only release the mutex if it's held by the calling thread.
- ASSERT(thread == holding_thread);
-
- holding_thread->held_mutexes.erase(this);
- holding_thread->UpdatePriority();
- SetHoldingThread(nullptr);
- SetHasWaiters(!GetWaitingThreads().empty());
- WakeupAllWaitingThreads();
- Core::System::GetInstance().PrepareReschedule();
-
- return RESULT_SUCCESS;
-}
-
-void Mutex::AddWaitingThread(SharedPtr<Thread> thread) {
- WaitObject::AddWaitingThread(thread);
- thread->pending_mutexes.insert(this);
- SetHasWaiters(true);
- UpdatePriority();
-}
-
-void Mutex::RemoveWaitingThread(Thread* thread) {
- WaitObject::RemoveWaitingThread(thread);
- thread->pending_mutexes.erase(this);
- if (!GetHasWaiters())
- SetHasWaiters(!GetWaitingThreads().empty());
- UpdatePriority();
-}
-
-void Mutex::UpdatePriority() {
- if (!GetHoldingThread())
- return;
-
- u32 best_priority = THREADPRIO_LOWEST;
- for (auto& waiter : GetWaitingThreads()) {
- if (waiter->current_priority < best_priority)
- best_priority = waiter->current_priority;
- }
-
- if (best_priority != priority) {
- priority = best_priority;
- GetHoldingThread()->UpdatePriority();
- }
-}
-
-Handle Mutex::GetOwnerHandle() const {
- GuestState guest_state{Memory::Read32(guest_addr)};
- return guest_state.holding_thread_handle;
-}
-
-SharedPtr<Thread> Mutex::GetHoldingThread() const {
- GuestState guest_state{Memory::Read32(guest_addr)};
- return g_handle_table.Get<Thread>(guest_state.holding_thread_handle);
-}
-
-void Mutex::SetHoldingThread(SharedPtr<Thread> thread) {
- GuestState guest_state{Memory::Read32(guest_addr)};
- guest_state.holding_thread_handle.Assign(thread ? thread->guest_handle : 0);
- Memory::Write32(guest_addr, guest_state.raw);
-}
-
-bool Mutex::GetHasWaiters() const {
- GuestState guest_state{Memory::Read32(guest_addr)};
- return guest_state.has_waiters != 0;
-}
-
-void Mutex::SetHasWaiters(bool has_waiters) {
- GuestState guest_state{Memory::Read32(guest_addr)};
- guest_state.has_waiters.Assign(has_waiters ? 1 : 0);
- Memory::Write32(guest_addr, guest_state.raw);
-}
-
ResultCode Mutex::TryAcquire(VAddr address, Handle holding_thread_handle,
Handle requesting_thread_handle) {
// The mutex address must be 4-byte aligned