Issue #22054: Add os.get_blocking() and os.set_blocking() functions to get and
set the blocking mode of a file descriptor (False if the O_NONBLOCK flag is
set, True otherwise). These functions are not available on Windows.
diff --git a/Lib/asyncore.py b/Lib/asyncore.py
index 90854b2..da24b38 100644
--- a/Lib/asyncore.py
+++ b/Lib/asyncore.py
@@ -590,8 +590,6 @@
# Regardless, this is useful for pipes, and stdin/stdout...
if os.name == 'posix':
- import fcntl
-
class file_wrapper:
# Here we override just enough to make a file
# look like a socket for the purposes of asyncore.
@@ -642,9 +640,7 @@
pass
self.set_file(fd)
# set it to non-blocking mode
- flags = fcntl.fcntl(fd, fcntl.F_GETFL, 0)
- flags = flags | os.O_NONBLOCK
- fcntl.fcntl(fd, fcntl.F_SETFL, flags)
+ os.set_blocking(fd, False)
def set_file(self, fd):
self.socket = file_wrapper(fd)