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Code Issues Releases Wiki Activity

hle: kernel: KThread: Remove tracking of sync object from threads.

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This commit is contained in:
bunnei
2021-11-09 19:21:20 -08:00
parent bc1399204b
commit 2f89456041
6 changed files with 21 additions and 41 deletions
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16
src/core/hle/kernel/k_address_arbiter.cpp
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@@ -97,7 +97,7 @@ ResultCode KAddressArbiter::Signal(VAddr addr, s32 count) {
while ((it != thread_tree.end()) && (count <= 0 || num_waiters < count) &&
(it->GetAddressArbiterKey() == addr)) {
KThread* target_thread = std::addressof(*it);
target_thread->SetSyncedObject(nullptr, ResultSuccess);
target_thread->SetWaitResult(ResultSuccess);
ASSERT(target_thread->IsWaitingForAddressArbiter());
target_thread->Wakeup();
@@ -130,7 +130,7 @@ ResultCode KAddressArbiter::SignalAndIncrementIfEqual(VAddr addr, s32 value, s32
while ((it != thread_tree.end()) && (count <= 0 || num_waiters < count) &&
(it->GetAddressArbiterKey() == addr)) {
KThread* target_thread = std::addressof(*it);
target_thread->SetSyncedObject(nullptr, ResultSuccess);
target_thread->SetWaitResult(ResultSuccess);
ASSERT(target_thread->IsWaitingForAddressArbiter());
target_thread->Wakeup();
@@ -198,7 +198,7 @@ ResultCode KAddressArbiter::SignalAndModifyByWaitingCountIfEqual(VAddr addr, s32
while ((it != thread_tree.end()) && (count <= 0 || num_waiters < count) &&
(it->GetAddressArbiterKey() == addr)) {
KThread* target_thread = std::addressof(*it);
target_thread->SetSyncedObject(nullptr, ResultSuccess);
target_thread->SetWaitResult(ResultSuccess);
ASSERT(target_thread->IsWaitingForAddressArbiter());
target_thread->Wakeup();
@@ -225,7 +225,7 @@ ResultCode KAddressArbiter::WaitIfLessThan(VAddr addr, s32 value, bool decrement
}
// Set the synced object.
cur_thread->SetSyncedObject(nullptr, ResultTimedOut);
cur_thread->SetWaitResult(ResultTimedOut);
// Read the value from userspace.
s32 user_value{};
@@ -274,8 +274,7 @@ ResultCode KAddressArbiter::WaitIfLessThan(VAddr addr, s32 value, bool decrement
}
// Get the result.
KSynchronizationObject* dummy{};
return cur_thread->GetWaitResult(&dummy);
return cur_thread->GetWaitResult();
}
ResultCode KAddressArbiter::WaitIfEqual(VAddr addr, s32 value, s64 timeout) {
@@ -292,7 +291,7 @@ ResultCode KAddressArbiter::WaitIfEqual(VAddr addr, s32 value, s64 timeout) {
}
// Set the synced object.
cur_thread->SetSyncedObject(nullptr, ResultTimedOut);
cur_thread->SetWaitResult(ResultTimedOut);
// Read the value from userspace.
s32 user_value{};
@@ -334,8 +333,7 @@ ResultCode KAddressArbiter::WaitIfEqual(VAddr addr, s32 value, s64 timeout) {
}
// Get the result.
KSynchronizationObject* dummy{};
return cur_thread->GetWaitResult(&dummy);
return cur_thread->GetWaitResult();
}
} // namespace Kernel

22
src/core/hle/kernel/k_condition_variable.cpp
View File

@@ -84,14 +84,14 @@ ResultCode KConditionVariable::SignalToAddress(VAddr addr) {
next_value |= Svc::HandleWaitMask;
}
next_owner_thread->SetSyncedObject(nullptr, ResultSuccess);
next_owner_thread->SetWaitResult(ResultSuccess);
next_owner_thread->Wakeup();
}
// Write the value to userspace.
if (!WriteToUser(system, addr, std::addressof(next_value))) {
if (next_owner_thread) {
next_owner_thread->SetSyncedObject(nullptr, ResultInvalidCurrentMemory);
next_owner_thread->SetWaitResult(ResultInvalidCurrentMemory);
}
return ResultInvalidCurrentMemory;
@@ -110,7 +110,7 @@ ResultCode KConditionVariable::WaitForAddress(Handle handle, VAddr addr, u32 val
ASSERT(owner_thread.IsNull());
{
KScopedSchedulerLock sl(kernel);
cur_thread->SetSyncedObject(nullptr, ResultSuccess);
cur_thread->SetWaitResult(ResultSuccess);
// Check if the thread should terminate.
R_UNLESS(!cur_thread->IsTerminationRequested(), ResultTerminationRequested);
@@ -151,8 +151,7 @@ ResultCode KConditionVariable::WaitForAddress(Handle handle, VAddr addr, u32 val
}
// Get the wait result.
KSynchronizationObject* dummy{};
return cur_thread->GetWaitResult(std::addressof(dummy));
return cur_thread->GetWaitResult();
}
KThread* KConditionVariable::SignalImpl(KThread* thread) {
@@ -179,7 +178,7 @@ KThread* KConditionVariable::SignalImpl(KThread* thread) {
if (can_access) {
if (prev_tag == Svc::InvalidHandle) {
// If nobody held the lock previously, we're all good.
thread->SetSyncedObject(nullptr, ResultSuccess);
thread->SetWaitResult(ResultSuccess);
thread->Wakeup();
} else {
// Get the previous owner.
@@ -195,13 +194,13 @@ KThread* KConditionVariable::SignalImpl(KThread* thread) {
thread_to_close = owner_thread;
} else {
// The lock was tagged with a thread that doesn't exist.
thread->SetSyncedObject(nullptr, ResultInvalidState);
thread->SetWaitResult(ResultInvalidState);
thread->Wakeup();
}
}
} else {
// If the address wasn't accessible, note so.
thread->SetSyncedObject(nullptr, ResultInvalidCurrentMemory);
thread->SetWaitResult(ResultInvalidCurrentMemory);
thread->Wakeup();
}
@@ -265,7 +264,7 @@ ResultCode KConditionVariable::Wait(VAddr addr, u64 key, u32 value, s64 timeout)
KScopedSchedulerLockAndSleep slp{kernel, cur_thread, timeout};
// Set the synced object.
cur_thread->SetSyncedObject(nullptr, ResultTimedOut);
cur_thread->SetWaitResult(ResultTimedOut);
// Check that the thread isn't terminating.
if (cur_thread->IsTerminationRequested()) {
@@ -290,7 +289,7 @@ ResultCode KConditionVariable::Wait(VAddr addr, u64 key, u32 value, s64 timeout)
}
// Wake up the next owner.
next_owner_thread->SetSyncedObject(nullptr, ResultSuccess);
next_owner_thread->SetWaitResult(ResultSuccess);
next_owner_thread->Wakeup();
}
@@ -340,8 +339,7 @@ ResultCode KConditionVariable::Wait(VAddr addr, u64 key, u32 value, s64 timeout)
}
// Get the result.
KSynchronizationObject* dummy{};
return cur_thread->GetWaitResult(std::addressof(dummy));
return cur_thread->GetWaitResult();
}
} // namespace Kernel

2
src/core/hle/kernel/k_server_session.cpp
View File

@@ -176,7 +176,7 @@ ResultCode KServerSession::CompleteSyncRequest(HLERequestContext& context) {
KScopedSchedulerLock lock(kernel);
if (!context.IsThreadWaiting()) {
context.GetThread().Wakeup();
context.GetThread().SetSyncedObject(nullptr, result);
context.GetThread().SetWaitResult(result);
}
}

7
src/core/hle/kernel/k_thread.cpp
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@@ -130,9 +130,6 @@ ResultCode KThread::Initialize(KThreadFunction func, uintptr_t arg, VAddr user_s
priority = prio;
base_priority = prio;
// Set sync object and waiting lock to null.
synced_object = nullptr;
// Initialize sleeping queue.
sleeping_queue = nullptr;
@@ -279,7 +276,7 @@ void KThread::Finalize() {
while (it != waiter_list.end()) {
// The thread shouldn't be a kernel waiter.
it->SetLockOwner(nullptr);
it->SetSyncedObject(nullptr, ResultInvalidState);
it->SetWaitResult(ResultInvalidState);
it->Wakeup();
it = waiter_list.erase(it);
}
@@ -650,7 +647,7 @@ void KThread::WaitCancel() {
sleeping_queue->WakeupThread(this);
wait_cancelled = true;
} else {
SetSyncedObject(nullptr, ResultCancelled);
SetWaitResult(ResultCancelled);
SetState(ThreadState::Runnable);
wait_cancelled = false;
}

12
src/core/hle/kernel/k_thread.h
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@@ -197,11 +197,6 @@ public:
void Suspend();
void SetSyncedObject(KSynchronizationObject* obj, ResultCode wait_res) {
synced_object = obj;
wait_result = wait_res;
}
constexpr void SetSyncedIndex(s32 index) {
synced_index = index;
}
@@ -212,18 +207,12 @@ public:
constexpr void SetWaitResult(ResultCode wait_res) {
wait_result = wait_res;
synced_object = nullptr;
}
constexpr ResultCode GetWaitResult() const {
return wait_result;
}
[[nodiscard]] ResultCode GetWaitResult(KSynchronizationObject** out) const {
*out = synced_object;
return wait_result;
}
/*
* Returns the Thread Local Storage address of the current thread
* @returns VAddr of the thread's TLS
@@ -716,7 +705,6 @@ private:
KAffinityMask physical_affinity_mask{};
u64 thread_id{};
std::atomic<s64> cpu_time{};
KSynchronizationObject* synced_object{};
VAddr address_key{};
KProcess* parent{};
VAddr kernel_stack_top{};

3
src/core/hle/kernel/svc.cpp
View File

@@ -325,8 +325,7 @@ static ResultCode SendSyncRequest(Core::System& system, Handle handle) {
}
}
KSynchronizationObject* dummy{};
return thread->GetWaitResult(std::addressof(dummy));
return thread->GetWaitResult();
}
static ResultCode SendSyncRequest32(Core::System& system, Handle handle) {