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-rw-r--r--src/core/hle/kernel/k_light_condition_variable.h43
-rw-r--r--src/core/hle/kernel/k_light_lock.cpp19
-rw-r--r--src/core/hle/kernel/k_process.cpp16
-rw-r--r--src/core/hle/kernel/k_resource_limit.cpp2
4 files changed, 43 insertions, 37 deletions
diff --git a/src/core/hle/kernel/k_light_condition_variable.h b/src/core/hle/kernel/k_light_condition_variable.h
index ca2e539a7..a95fa41f3 100644
--- a/src/core/hle/kernel/k_light_condition_variable.h
+++ b/src/core/hle/kernel/k_light_condition_variable.h
@@ -18,41 +18,58 @@ class KernelCore;
class KLightConditionVariable {
public:
- explicit KLightConditionVariable(KernelCore& kernel_)
- : thread_queue(kernel_), kernel(kernel_) {}
+ explicit KLightConditionVariable(KernelCore& kernel_) : kernel{kernel_} {}
- void Wait(KLightLock* lock, s64 timeout = -1) {
- WaitImpl(lock, timeout);
- lock->Lock();
+ void Wait(KLightLock* lock, s64 timeout = -1, bool allow_terminating_thread = true) {
+ WaitImpl(lock, timeout, allow_terminating_thread);
}
void Broadcast() {
KScopedSchedulerLock lk{kernel};
- while (thread_queue.WakeupFrontThread() != nullptr) {
- // We want to signal all threads, and so should continue waking up until there's nothing
- // to wake.
+
+ // Signal all threads.
+ for (auto& thread : wait_list) {
+ thread.SetState(ThreadState::Runnable);
}
}
private:
- void WaitImpl(KLightLock* lock, s64 timeout) {
+ void WaitImpl(KLightLock* lock, s64 timeout, bool allow_terminating_thread) {
KThread* owner = GetCurrentThreadPointer(kernel);
// Sleep the thread.
{
- KScopedSchedulerLockAndSleep lk(kernel, owner, timeout);
- lock->Unlock();
+ KScopedSchedulerLockAndSleep lk{kernel, owner, timeout};
- if (!thread_queue.SleepThread(owner)) {
+ if (!allow_terminating_thread && owner->IsTerminationRequested()) {
lk.CancelSleep();
return;
}
+
+ lock->Unlock();
+
+ // Set the thread as waiting.
+ GetCurrentThread(kernel).SetState(ThreadState::Waiting);
+
+ // Add the thread to the queue.
+ wait_list.push_back(GetCurrentThread(kernel));
+ }
+
+ // Remove the thread from the wait list.
+ {
+ KScopedSchedulerLock sl{kernel};
+
+ wait_list.erase(wait_list.iterator_to(GetCurrentThread(kernel)));
}
// Cancel the task that the sleep setup.
kernel.TimeManager().UnscheduleTimeEvent(owner);
+
+ // Re-acquire the lock.
+ lock->Lock();
}
- KThreadQueue thread_queue;
+
KernelCore& kernel;
+ KThread::WaiterList wait_list{};
};
} // namespace Kernel
diff --git a/src/core/hle/kernel/k_light_lock.cpp b/src/core/hle/kernel/k_light_lock.cpp
index f974022e8..0896e705f 100644
--- a/src/core/hle/kernel/k_light_lock.cpp
+++ b/src/core/hle/kernel/k_light_lock.cpp
@@ -59,11 +59,7 @@ void KLightLock::LockSlowPath(uintptr_t _owner, uintptr_t _cur_thread) {
owner_thread->AddWaiter(cur_thread);
// Set thread states.
- if (cur_thread->GetState() == ThreadState::Runnable) {
- cur_thread->SetState(ThreadState::Waiting);
- } else {
- KScheduler::SetSchedulerUpdateNeeded(kernel);
- }
+ cur_thread->SetState(ThreadState::Waiting);
if (owner_thread->IsSuspended()) {
owner_thread->ContinueIfHasKernelWaiters();
@@ -73,10 +69,9 @@ void KLightLock::LockSlowPath(uintptr_t _owner, uintptr_t _cur_thread) {
// We're no longer waiting on the lock owner.
{
KScopedSchedulerLock sl{kernel};
- KThread* owner_thread = cur_thread->GetLockOwner();
- if (owner_thread) {
+
+ if (KThread* owner_thread = cur_thread->GetLockOwner(); owner_thread != nullptr) {
owner_thread->RemoveWaiter(cur_thread);
- KScheduler::SetSchedulerUpdateNeeded(kernel);
}
}
}
@@ -95,17 +90,13 @@ void KLightLock::UnlockSlowPath(uintptr_t _cur_thread) {
// Pass the lock to the next owner.
uintptr_t next_tag = 0;
- if (next_owner) {
+ if (next_owner != nullptr) {
next_tag = reinterpret_cast<uintptr_t>(next_owner);
if (num_waiters > 1) {
next_tag |= 0x1;
}
- if (next_owner->GetState() == ThreadState::Waiting) {
- next_owner->SetState(ThreadState::Runnable);
- } else {
- KScheduler::SetSchedulerUpdateNeeded(kernel);
- }
+ next_owner->SetState(ThreadState::Runnable);
if (next_owner->IsSuspended()) {
next_owner->ContinueIfHasKernelWaiters();
diff --git a/src/core/hle/kernel/k_process.cpp b/src/core/hle/kernel/k_process.cpp
index 06b8ce151..d1bd98051 100644
--- a/src/core/hle/kernel/k_process.cpp
+++ b/src/core/hle/kernel/k_process.cpp
@@ -201,17 +201,15 @@ bool KProcess::ReleaseUserException(KThread* thread) {
// Remove waiter thread.
s32 num_waiters{};
- KThread* next = thread->RemoveWaiterByKey(
- std::addressof(num_waiters),
- reinterpret_cast<uintptr_t>(std::addressof(exception_thread)));
- if (next != nullptr) {
- if (next->GetState() == ThreadState::Waiting) {
- next->SetState(ThreadState::Runnable);
- } else {
- KScheduler::SetSchedulerUpdateNeeded(kernel);
- }
+ if (KThread* next = thread->RemoveWaiterByKey(
+ std::addressof(num_waiters),
+ reinterpret_cast<uintptr_t>(std::addressof(exception_thread)));
+ next != nullptr) {
+ next->SetState(ThreadState::Runnable);
}
+ KScheduler::SetSchedulerUpdateNeeded(kernel);
+
return true;
} else {
return false;
diff --git a/src/core/hle/kernel/k_resource_limit.cpp b/src/core/hle/kernel/k_resource_limit.cpp
index f91cb65dc..da88f35bc 100644
--- a/src/core/hle/kernel/k_resource_limit.cpp
+++ b/src/core/hle/kernel/k_resource_limit.cpp
@@ -117,7 +117,7 @@ bool KResourceLimit::Reserve(LimitableResource which, s64 value, s64 timeout) {
if (current_hints[index] + value <= limit_values[index] &&
(timeout < 0 || core_timing->GetGlobalTimeNs().count() < timeout)) {
waiter_count++;
- cond_var.Wait(&lock, timeout);
+ cond_var.Wait(&lock, timeout, false);
waiter_count--;
} else {
break;