snapshot before regression test

includes/event.py

@@ -0,0 +1,36 @@
+import t, c
+from stdint import *
+from w32.win32base import *
+from w32.win32sync import CreateEventA, SetEvent, ResetEvent, WaitForSingleObject
+
+
+@t.Object
+class Event:
+    """基于 Windows Event 的事件对象，支持手动/自动重置。
+
+    用法:
+        evt: Event = Event(FALSE, FALSE)
+        evt.set()
+        evt.wait()
+    """
+    handle: HANDLE
+    manual_reset: BOOL
+
+    def __init__(self, manual_reset: BOOL = FALSE, initial_state: BOOL = FALSE):
+        self.manual_reset = manual_reset
+        self.handle = CreateEventA(NULL, manual_reset, initial_state, NULL)
+
+    def set(self):
+        SetEvent(self.handle)
+
+    def clear(self):
+        ResetEvent(self.handle)
+
+    def is_set(self) -> BOOL:
+        return WaitForSingleObject(self.handle, 0) == WAIT_OBJECT_0
+
+    def wait(self, timeout_ms: ULONG = INFINITE) -> BOOL:
+        return WaitForSingleObject(self.handle, timeout_ms) == WAIT_OBJECT_0
+
+    def close(self):
+        CloseHandle(self.handle)