libs: begin extraction of kernel std

1 files changed, 16 insertions, 0 deletions

diff --git a/libs/kstd/src/mutex.cpp b/libs/kstd/src/mutex.cpp
new file mode 100644
index 0000000..cfb1c84
--- /dev/null
+++ b/libs/kstd/src/mutex.cpp
@@ -0,0 +1,16 @@
+#include "kstd/mutex.hpp"
+
+namespace kstd
+{
+  auto mutex::lock() -> void
+  {
+    while (!try_lock())
+    {
+      asm volatile("nop");
+    }
+  }
+
+  auto mutex::try_lock() -> bool { return !locked.exchange(true, std::memory_order_acquire); }
+
+  auto mutex::unlock() -> void { locked.store(false, std::memory_order_release); }
+}  // namespace kstd