This repository was archived by the owner on Sep 16, 2024. It is now read-only.
This repository was archived by the owner on Sep 16, 2024. It is now read-only.
Socket is stuck until reboot #612
Description
Hi there,
I have a problem with sockets. I'm using this piece of code to connect and disconnect to a server using socket:
class EXAMPLE:
def __init__(self, slave_ip, slave_port, timeout):
self.slave_ip = slave_ip
self.slave_port = slave_port
self.timeout = timeout
self._sock = None
def connect(self):
created = False
try:
self._sock = usocket.socket(usocket.AF_INET, usocket.SOCK_STREAM, usocket.IPPROTO_TCP)
self._sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self._sock.setblocking(True)
self._sock.settimeout(self.timeout)
self._sock.connect(usocket.getaddrinfo(slave_ip, slave_port)[0][-1])
created = True
print('Socket created')
return created
except:
print('Cannot connect socket')
self.close()
return created
def close(self):
try:
if self._sock:
self._sock.close()
self._sock = None
return True
except:
raise Exception('Cannot close socket')
The problem is that is sometimes stuck and is not able to connect to the server. I see that "settimeout" is done correctly but then stucks during connect. Timeout doesn't affect anything, it will stay in that stuck state for long time.
Actually I'm using an external timer that checks for stuck socket, it starts when socket.connect() is called and is cancelled when socket is created. If not created then a machine.reset() is done.
After reset everything works correctly.
Please can you help me finding out what's wrong? Thank you very much.