2 files changed, 5 insertions, 37 deletions
diff --git a/compat/check-visible.cpp b/compat/check-visible.cpp
index 2772c9ae..1212ab90 100644
--- a/compat/check-visible.cpp
+++ b/compat/check-visible.cpp
@@ -1,11 +1,10 @@
 #include "check-visible.hpp"
 
+#include <QMutex>
 #include <QWidget>
 #include <QDebug>
 
-#include "spinlock.hpp"
-
-static std::atomic_flag lock = ATOMIC_FLAG_INIT;
+static QMutex lock;
 static bool visible = true;
 
 #if defined _WIN32
@@ -22,7 +21,7 @@ constexpr int invisible_timeout = 250;
 
 void set_is_visible(const QWidget& w, bool force)
 {
-    spinlock_guard l(lock);
+    QMutexLocker l(&lock);
 
     if (w.isHidden() || w.windowState() & Qt::WindowMinimized)
     {
@@ -78,12 +77,12 @@ void set_is_visible(const QWidget& w, bool)
 
 bool check_is_visible()
 {
-    spinlock_guard l(lock);
+    QMutexLocker l(&lock);
     return visible;
 }
 
 void force_is_visible(bool value)
 {
-    spinlock_guard l(lock);
+    QMutexLocker l(&lock);
     visible = value;
 }
diff --git a/compat/spinlock.hpp b/compat/spinlock.hpp
deleted file mode 100644
index b94df7c8..00000000
--- a/compat/spinlock.hpp
+++ /dev/null
@@ -1,31 +0,0 @@
-#pragma once
-
-#include "export.hpp"
-#include "macros1.h"
-#include <atomic>
-
-struct OTR_COMPAT_EXPORT spinlock_guard final
-{
-    spinlock_guard(const spinlock_guard&) = delete;
-    spinlock_guard& operator=(const spinlock_guard&) = delete;
-    constexpr spinlock_guard(spinlock_guard&&) noexcept = default;
-
-    cc_forceinline
-    spinlock_guard(std::atomic_flag* lock) noexcept : spinlock_guard(*lock) {}
-
-    cc_forceinline
-    spinlock_guard(std::atomic_flag& lock) noexcept : lock(lock)
-    {
-        while (lock.test_and_set(std::memory_order_acquire))
-            (void)0;
-    }
-
-    cc_forceinline
-    ~spinlock_guard() noexcept
-    {
-        lock.clear(std::memory_order_release);
-    }
-
-private:
-    std::atomic_flag& lock;
-};