RAHHH

backend/lib/python3.12/site-packages/twisted/test/process_fds.py

@@ -0,0 +1,50 @@
+"""Write to a handful of file descriptors, to test the childFDs= argument of
+reactor.spawnProcess()
+"""
+
+
+import os
+import sys
+
+if __name__ == "__main__":
+    debug = 0
+
+    if debug:
+        stderr = os.fdopen(2, "w")
+
+    if debug:
+        print("this is stderr", file=stderr)
+
+    abcd = os.read(0, 4)
+    if debug:
+        print("read(0):", abcd, file=stderr)
+    if abcd != b"abcd":
+        sys.exit(1)
+
+    if debug:
+        print("os.write(1, righto)", file=stderr)
+    os.write(1, b"righto")
+
+    efgh = os.read(3, 4)
+    if debug:
+        print("read(3):", file=stderr)
+    if efgh != b"efgh":
+        sys.exit(2)
+
+    if debug:
+        print("os.close(4)", file=stderr)
+    os.close(4)
+
+    eof = os.read(5, 4)
+    if debug:
+        print("read(5):", eof, file=stderr)
+    if eof != b"":
+        sys.exit(3)
+
+    if debug:
+        print("os.write(1, closed)", file=stderr)
+    os.write(1, b"closed")
+
+    if debug:
+        print("sys.exit(0)", file=stderr)
+    sys.exit(0)