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store config in (binary) database on exit, read on start. database file currently hardcoded as /tmp/parkinglot.db

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git-svn-id: svn://bind10.isc.org/svn/bind10/branches/f2f200910@170 e5f2f494-b856-4b98-b285-d166d9295462
This commit is contained in:
Jelte Jansen
2009-10-29 21:12:07 +00:00
parent 5bf9017479
commit 1e70a81488
1 changed files with 23 additions and 16 deletions
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39
src/lib/bind-cfgd/python/bind-cfgd.py
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@@ -1,5 +1,6 @@
import ISC import ISC
import pickle
class ConfigData: class ConfigData:
def __init__(self): def __init__(self):
self.zones = {} self.zones = {}
@@ -32,14 +33,16 @@ class ConfigManager:
def read_config(self, filename): def read_config(self, filename):
print("Reading config") print("Reading config")
try: try:
file = open(filename, 'r'); file = open(filename, 'rb');
self.config = pickle.load(file) self.config = pickle.load(file)
except IOError as ioe: except IOError as ioe:
print("No config file found, starting with empty config") print("No config file found, starting with empty config")
except EOFError as eofe:
print("Config file empty, starting with empty config")
def write_config(self, filename): def write_config(self, filename):
print("Writing config") print("Writing config")
file = open(filename, 'w'); file = open(filename, 'wb');
pickle.dump(self.config, file) pickle.dump(self.config, file)
def handle_msg(self, msg): def handle_msg(self, msg):
@@ -68,30 +71,34 @@ class ConfigManager:
return answer return answer
def run(self): def run(self):
while (True): msg = 1
while (msg):
msg, env = self.cc.group_recvmsg(False) msg, env = self.cc.group_recvmsg(False)
print("received message: ") if msg:
print(msg) print("received message: ")
answer = self.handle_msg(msg); print(msg)
print("sending answer: ") answer = self.handle_msg(msg);
print(answer) print("sending answer: ")
self.cc.group_reply(env, answer) print(answer)
print("answer sent") self.cc.group_reply(env, answer)
pass print("answer sent")
if __name__ == "__main__": if __name__ == "__main__":
print("Hello, BIND10 world!") print("Hello, BIND10 world!")
db_file = "/tmp/parkinglot.db"
try: try:
cm = ConfigManager() cm = ConfigManager()
cm.read_config("/tmp/a") cm.read_config(db_file)
# do loading here if necessary # do loading here if necessary
cm.notify_boss() cm.notify_boss()
cm.run() cm.run()
cm.write_config(db_file)
except ISC.CC.SessionError as se: except ISC.CC.SessionError as se:
print("Error creating config manager, " print("Error creating config manager, "
"is the command channel daemon running?") "is the command channel daemon running?")
except KeyboardInterrupt as kie: except KeyboardInterrupt as kie:
print("Got ctrl-c, save config and exit") print("Got ctrl-c, save config and exit")
cm.write_config("/tmp/a") cm.write_config(db_file)