proj: Add server.c in perf

proj/server/src/performance

@@ -0,0 +1,45 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+# File: performance
+# Author: Lorenz Stechauner <e12119052@student.tuwien.ac.at>
+#         Lorenz Stechauner <lorenz.stechauner@necronda.net>
+
+import argparse
+
+import intercept
+import intercept.standard
+
+
+MODE: str
+
+
+class Handler(intercept.standard.Handler):
+    def before_pipe(self, fildes_ptr: intercept.Pointer) -> str:
+        return 'return 0' if MODE == 'return' else 'ok'
+
+    def after_pipe(self, fildes_ptr: intercept.Pointer,
+                   ret_value: int, errno: str = None, fildes: list[int] = None) -> None:
+        pass
+
+    def before_close(self, fildes: int) -> str:
+        return 'return 0' if MODE == 'return' else 'ok'
+
+    def after_close(self, fildes: int,
+                    ret_value: int, errno: str = None) -> None:
+        pass
+
+
+def main() -> None:
+    global MODE
+    parser = argparse.ArgumentParser()
+    parser.add_argument('-m', '--mode', choices=['ok', 'return'])
+    args = parser.parse_args()
+    MODE = args.mode
+
+    socket_name = f'/tmp/intercept.performance.{MODE}.sock'
+    intercept.intercept(socket_name, Handler)
+
+
+if __name__ == '__main__':
+    main()