add openjtalk worker pkg

text/pyopenjtalk_worker/worker_client.py

@@ -0,0 +1,40 @@
+from typing import Any
+import socket
+
+from .worker_common import RequestType, receive_data, send_data
+
+
+class WorkerClient:
+    def __init__(self, port: int) -> None:
+        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        # 5: timeout
+        sock.settimeout(5)
+        sock.connect((socket.gethostname(), port))
+        self.sock = sock
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_value, traceback):
+        self.close()
+
+    def close(self):
+        self.sock.close()
+
+    def dispatch_pyopenjtalk(self, func: str, *args, **kwargs):
+        data = {
+            "request-type": RequestType.PYOPENJTALK,
+            "func": func,
+            "args": args,
+            "kwargs": kwargs,
+        }
+        send_data(self.sock, data)
+        return receive_data(self.sock).get("return")
+
+    def status(self):
+        send_data(self.sock, {"request-type": RequestType.STATUS})
+        return receive_data(self.sock)
+
+    def quit_server(self):
+        send_data(self.sock, {"request-type": RequestType.QUIT_SERVER})
+        receive_data(self.sock)