Ausgabe der neuen DB Einträge

venv/lib/python3.9/site-packages/twisted/python/test/pullpipe.py

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+# -*- test-case-name: twisted.python.test.test_sendmsg -*-
+# Copyright (c) Twisted Matrix Laboratories.
+# See LICENSE for details.
+
+import sys
+import os
+import socket
+from struct import unpack
+
+from twisted.python.sendmsg import recvmsg
+
+
+def recvfd(socketfd):
+    """
+    Receive a file descriptor from a L{sendmsg} message on the given C{AF_UNIX}
+    socket.
+
+    @param socketfd: An C{AF_UNIX} socket, attached to another process waiting
+        to send sockets via the ancillary data mechanism in L{send1msg}.
+
+    @param fd: C{int}
+
+    @return: a 2-tuple of (new file descriptor, description).
+    @rtype: 2-tuple of (C{int}, C{bytes})
+    """
+    ourSocket = socket.fromfd(socketfd, socket.AF_UNIX, socket.SOCK_STREAM)
+    data, ancillary, flags = recvmsg(ourSocket)
+    [(cmsgLevel, cmsgType, packedFD)] = ancillary
+    # cmsgLevel and cmsgType really need to be SOL_SOCKET / SCM_RIGHTS, but
+    # since those are the *only* standard values, there's not much point in
+    # checking.
+    [unpackedFD] = unpack("i", packedFD)
+    return (unpackedFD, data)
+
+
+if __name__ == '__main__':
+    fd, description = recvfd(int(sys.argv[1]))
+    os.write(fd, b"Test fixture data: " + description + b".\n")
+    os.close(fd)