From 13ed9438fb47d62663fb1ef367baac1a567b25b3 Mon Sep 17 00:00:00 2001
From: Fernando Sahmkow <fsahmkow27@gmail.com>
Date: Tue, 4 Feb 2020 11:23:12 -0400
Subject: Common: Implement a basic SpinLock class

---
 src/common/spin_lock.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 src/common/spin_lock.h

(limited to 'src/common/spin_lock.h')

diff --git a/src/common/spin_lock.h b/src/common/spin_lock.h
new file mode 100644
index 000000000..cbc67b6c8
--- /dev/null
+++ b/src/common/spin_lock.h
@@ -0,0 +1,20 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <atomic>
+
+namespace Common {
+
+class SpinLock {
+public:
+    void lock();
+    void unlock();
+
+private:
+    std::atomic_flag lck = ATOMIC_FLAG_INIT;
+};
+
+} // namespace Common
-- 
cgit v1.2.3


From be320a9e10fda32a984b12cdfe3aaf09cc67b39a Mon Sep 17 00:00:00 2001
From: Fernando Sahmkow <fsahmkow27@gmail.com>
Date: Wed, 5 Feb 2020 15:48:20 -0400
Subject: Common: Polish Fiber class, add comments, asserts and more tests.

---
 src/common/spin_lock.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/common/spin_lock.h')

diff --git a/src/common/spin_lock.h b/src/common/spin_lock.h
index cbc67b6c8..70282a961 100644
--- a/src/common/spin_lock.h
+++ b/src/common/spin_lock.h
@@ -12,6 +12,7 @@ class SpinLock {
 public:
     void lock();
     void unlock();
+    bool try_lock();
 
 private:
     std::atomic_flag lck = ATOMIC_FLAG_INIT;
-- 
cgit v1.2.3


From 2f8947583f2f0af4058600243d6c1d244e3c4890 Mon Sep 17 00:00:00 2001
From: Fernando Sahmkow <fsahmkow27@gmail.com>
Date: Sat, 27 Jun 2020 18:20:06 -0400
Subject: Core/Common: Address Feedback.

---
 src/common/spin_lock.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/common/spin_lock.h')

diff --git a/src/common/spin_lock.h b/src/common/spin_lock.h
index 70282a961..1df5528c4 100644
--- a/src/common/spin_lock.h
+++ b/src/common/spin_lock.h
@@ -8,6 +8,11 @@
 
 namespace Common {
 
+/**
+ * SpinLock class
+ * a lock similar to mutex that forces a thread to spin wait instead calling the
+ * supervisor. Should be used on short sequences of code.
+ */
 class SpinLock {
 public:
     void lock();
-- 
cgit v1.2.3