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authorbunnei <bunneidev@gmail.com>2021-11-10 05:54:44 +0100
committerbunnei <bunneidev@gmail.com>2021-12-07 01:39:17 +0100
commit5dff28290fc4fc9bc3db3c32476dd93b2c4414c6 (patch)
tree45bccef430ad51ccef88b66036f511d8f52964d0 /src/core/hle/kernel
parenthle: kernel: KLightLock: Migrate to updated KThreadQueue. (diff)
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Diffstat (limited to 'src/core/hle/kernel')
-rw-r--r--src/core/hle/kernel/k_light_condition_variable.cpp80
-rw-r--r--src/core/hle/kernel/k_light_condition_variable.h60
2 files changed, 86 insertions, 54 deletions
diff --git a/src/core/hle/kernel/k_light_condition_variable.cpp b/src/core/hle/kernel/k_light_condition_variable.cpp
new file mode 100644
index 000000000..9ff710084
--- /dev/null
+++ b/src/core/hle/kernel/k_light_condition_variable.cpp
@@ -0,0 +1,80 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "core/hle/kernel/k_light_condition_variable.h"
+#include "core/hle/kernel/k_scheduler.h"
+#include "core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h"
+#include "core/hle/kernel/k_thread_queue.h"
+#include "core/hle/kernel/svc_results.h"
+
+namespace Kernel {
+
+namespace {
+
+class ThreadQueueImplForKLightConditionVariable final : public KThreadQueue {
+private:
+ KThread::WaiterList* m_wait_list;
+ bool m_allow_terminating_thread;
+
+public:
+ ThreadQueueImplForKLightConditionVariable(KernelCore& kernel_, KThread::WaiterList* wl,
+ bool term)
+ : KThreadQueue(kernel_), m_wait_list(wl), m_allow_terminating_thread(term) {}
+
+ virtual void CancelWait(KThread* waiting_thread, ResultCode wait_result,
+ bool cancel_timer_task) override {
+ // Only process waits if we're allowed to.
+ if (ResultTerminationRequested == wait_result && m_allow_terminating_thread) {
+ return;
+ }
+
+ // Remove the thread from the waiting thread from the light condition variable.
+ m_wait_list->erase(m_wait_list->iterator_to(*waiting_thread));
+
+ // Invoke the base cancel wait handler.
+ KThreadQueue::CancelWait(waiting_thread, wait_result, cancel_timer_task);
+ }
+};
+
+} // namespace
+
+void KLightConditionVariable::Wait(KLightLock* lock, s64 timeout, bool allow_terminating_thread) {
+ // Create thread queue.
+ KThread* owner = GetCurrentThreadPointer(kernel);
+
+ ThreadQueueImplForKLightConditionVariable wait_queue(kernel, std::addressof(wait_list),
+ allow_terminating_thread);
+
+ // Sleep the thread.
+ {
+ KScopedSchedulerLockAndSleep lk(kernel, owner, timeout);
+
+ if (!allow_terminating_thread && owner->IsTerminationRequested()) {
+ lk.CancelSleep();
+ return;
+ }
+
+ lock->Unlock();
+
+ // Add the thread to the queue.
+ wait_list.push_back(*owner);
+
+ // Begin waiting.
+ owner->BeginWait(std::addressof(wait_queue));
+ }
+
+ // Re-acquire the lock.
+ lock->Lock();
+}
+
+void KLightConditionVariable::Broadcast() {
+ KScopedSchedulerLock lk(kernel);
+
+ // Signal all threads.
+ for (auto it = wait_list.begin(); it != wait_list.end(); it = wait_list.erase(it)) {
+ it->EndWait(ResultSuccess);
+ }
+}
+
+} // namespace Kernel
diff --git a/src/core/hle/kernel/k_light_condition_variable.h b/src/core/hle/kernel/k_light_condition_variable.h
index fb0ad783a..65d3bc3e1 100644
--- a/src/core/hle/kernel/k_light_condition_variable.h
+++ b/src/core/hle/kernel/k_light_condition_variable.h
@@ -1,73 +1,25 @@
-// Copyright 2020 yuzu Emulator Project
+// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
-// This file references various implementation details from Atmosphere, an open-source firmware for
-// the Nintendo Switch. Copyright 2018-2020 Atmosphere-NX.
-
#pragma once
#include "common/common_types.h"
-#include "core/hle/kernel/k_scheduler.h"
-#include "core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h"
-#include "core/hle/kernel/time_manager.h"
+#include "core/hle/kernel/k_thread.h"
namespace Kernel {
+
class KernelCore;
+class KLightLock;
class KLightConditionVariable {
public:
explicit KLightConditionVariable(KernelCore& kernel_) : kernel{kernel_} {}
- void Wait(KLightLock* lock, s64 timeout = -1, bool allow_terminating_thread = true) {
- WaitImpl(lock, timeout, allow_terminating_thread);
- }
-
- void Broadcast() {
- KScopedSchedulerLock lk{kernel};
-
- // Signal all threads.
- for (auto& thread : wait_list) {
- thread.SetState(ThreadState::Runnable);
- }
- }
+ void Wait(KLightLock* lock, s64 timeout = -1, bool allow_terminating_thread = true);
+ void Broadcast();
private:
- void WaitImpl(KLightLock* lock, s64 timeout, bool allow_terminating_thread) {
- KThread* owner = GetCurrentThreadPointer(kernel);
-
- // Sleep the thread.
- {
- KScopedSchedulerLockAndSleep lk{kernel, owner, timeout};
-
- 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();
- }
-
KernelCore& kernel;
KThread::WaiterList wait_list{};
};