From be691582ee12613278af24cb5a824eeb357f6324 Mon Sep 17 00:00:00 2001
From: Benji Dial <benji@benjidial.net>
Date: Mon, 29 Jul 2024 11:27:22 -0400
Subject: some work on compositor

---
 euler/include/std/mutex.hpp | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 euler/include/std/mutex.hpp

(limited to 'euler/include/std/mutex.hpp')

diff --git a/euler/include/std/mutex.hpp b/euler/include/std/mutex.hpp
new file mode 100644
index 0000000..0a27877
--- /dev/null
+++ b/euler/include/std/mutex.hpp
@@ -0,0 +1,40 @@
+#pragma once
+
+#include <euler/syscall.hpp>
+
+namespace std {
+
+  class mutex {
+
+    euler::syscall::stream_handle in_handle;
+    euler::syscall::stream_handle out_handle;
+
+  public:
+    inline mutex() noexcept {
+      euler::syscall::create_private_socket(in_handle, out_handle);
+      uint8_t byte = 0;
+      euler::syscall::write_to_stream(in_handle, 1, &byte);
+    }
+
+    mutex(const mutex &) = delete;
+
+    inline ~mutex() {
+      euler::syscall::close_stream(in_handle);
+      euler::syscall::close_stream(out_handle);
+    }
+
+    mutex &operator =(const mutex &) = delete;
+
+    inline void lock() {
+      uint8_t byte;
+      euler::syscall::read_from_stream(out_handle, 1, &byte);
+    }
+
+    inline void unlock() {
+      uint8_t byte = 0;
+      euler::syscall::write_to_stream(in_handle, 1, &byte);
+    }
+
+  };
+
+}
-- 
cgit v1.2.3