def __init__(self, uds_name):
"""
Constructor
"""
if uds_name is None:
self.__uds = None
return
try:
os.remove(uds_name) # override any previous use of the UDS
except OSError:
pass
self.__uds = DomainSocket(uds_name)
class UDSReader(object):
"""
classdocs
"""
# ----------------------------------------------------------------------------------------------------------------
def __init__(self, uds_name):
"""
Constructor
"""
if uds_name is None:
self.__uds = None
return
try:
os.remove(uds_name) # override any previous use of the UDS
except OSError:
pass
self.__uds = DomainSocket(uds_name)
# ----------------------------------------------------------------------------------------------------------------
def connect(self):
if self.__uds:
self.__uds.connect()
def close(self):
if self.__uds:
self.__uds.close()
def messages(self):
if self.__uds:
for message in self.__uds.read():
yield message.strip()
else:
for message in sys.stdin:
yield message.strip()
# ----------------------------------------------------------------------------------------------------------------
def __str__(self, *args, **kwargs):
return "UDSReader:{uds:%s}" % self.__uds
class UDSWriter(object):
"""
classdocs
"""
# ----------------------------------------------------------------------------------------------------------------
def __init__(self, address):
"""
Constructor
"""
self.__uds = DomainSocket(address) if address else None
# ----------------------------------------------------------------------------------------------------------------
def connect(self):
if self.__uds:
self.__uds.connect()
def close(self):
if self.__uds:
self.__uds.close()
def write(self, message, wait_for_availability=False):
if self.__uds:
self.__uds.write(message, wait_for_availability)
else:
print(message)
sys.stdout.flush()
# ----------------------------------------------------------------------------------------------------------------
@property
def address(self):
return self.__uds.address if self.__uds else None
# ----------------------------------------------------------------------------------------------------------------
def __str__(self, *args, **kwargs):
return "UDSWriter:{uds:%s}" % self.__uds
if cmd.verbose:
print(api_auth, file=sys.stderr)
# ClientAuth...
client_auth = ClientAuth.load(Host)
if client_auth is None:
print("ClientAuth not available.", file=sys.stderr)
exit(1)
if cmd.verbose:
print(client_auth, file=sys.stderr)
# comms...
pub_comms = DomainSocket(
cmd.uds_pub_addr) if cmd.uds_pub_addr else StdIO()
# manager...
manager = TopicManager(HTTPClient(), api_auth.api_key)
# check topics...
unavailable = False
for subscription in cmd.subscriptions:
if not manager.find(subscription.topic):
print("Topic not available: %s" % subscription[0],
file=sys.stderr)
unavailable = True
if unavailable:
exit(1)
# ----------------------------------------------------------------------------------------------------------------
# cmd...
cmd = CmdUDS()
if not cmd.is_valid():
cmd.print_help(sys.stderr)
exit(2)
if cmd.verbose:
print(cmd, file=sys.stderr)
# ----------------------------------------------------------------------------------------------------------------
# resources...
uds = DomainSocket(cmd.path)
if cmd.verbose:
print(uds, file=sys.stderr)
sys.stderr.flush()
try:
# ------------------------------------------------------------------------------------------------------------
# run...
uds.connect()
for message in uds.read():
print(message)
sys.stdout.flush()
def __init__(self, address):
"""
Constructor
"""
self.__uds = DomainSocket(address) if address else None
Created on 26 May 2017 @author: Bruno Beloff ([email protected]) Note: multiple writers are permitted per UDS. https://pymotw.com/2/socket/uds.html """ import time from scs_host.comms.domain_socket import DomainSocket # -------------------------------------------------------------------------------------------------------------------- server_address = '/Users/bruno/Python/Mac/scs_analysis/scs_analysis/osio_mqtt_sub.uds' uds = DomainSocket(server_address) print(uds) while True: try: uds.connect() uds.write("Hello UDS!", True) finally: uds.close( ) # not needed - just to check a closed connection can be closed time.sleep(1)
https://pymotw.com/2/socket/uds.html
"""
import sys
from scs_core.data.localized_datetime import LocalizedDatetime
from scs_host.comms.domain_socket import DomainSocket
# --------------------------------------------------------------------------------------------------------------------
server_address = '/Users/bruno/Python/Mac/scs_analysis/scs_analysis/osio_mqtt_sub.uds'
uds = DomainSocket(server_address)
print(uds)
try:
uds.connect()
for message in uds.read():
now = LocalizedDatetime.now()
print("%s: got:[%s]" % (now.as_iso8601(), message))
except KeyboardInterrupt as ex:
print("uds_reader_test: KeyboardInterrupt", file=sys.stderr)
finally:
uds.close()