Issue 976613: socket timeout problems on Solaris (original) (raw)

The timeout stuff in the socket module does not work correctly on Solaris. Here's a typical example:

import socket

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.bind(("localhost", 9048)) s.listen(1) s.settimeout(10) conn, addr = s.accept() print 'Connected by', addr while 1: data = conn.recv(1024) if not data: break conn.send(data) conn.close()

When connecting, I get this traceback:

Connected by ('127.0.0.1', 32866) Traceback (most recent call last): File "foo.py", line 10, in ? data = conn.recv(1024) socket.error: (11, 'Resource temporarily unavailable')

This is because Python treats the new socket object as blocking (the timeout value is -1). However, in Solaris, sockets returned from accept() inherits the blocking property. So, because the listenting socket was in non-blocking mode, the new connected socket will be non-blocking as well. Since the timeout is -1, internal_select will not call select.

The solution to this problem is to explicitly set the blocking mode on new socket objects. The attached patch implements this.