1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
#!/usr/bin/env python
# -*- coding: utf-8 -*-
############################################################################
# sync-engine
#
# Entry point and manager for sync-engine
#
# Adapted by Dr J A Gow 12/2007 from the original sync-engine
#
# Original sync-engine copyright (C) 2006 Ole André Vadla Ravnås
# <oleavr@gmail.com>
#
# This program is free software; you can redistribute it and#or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the
# Free Software Foundation, Inc.
# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
############################################################################
version = (0, 1, 1)
import gobject
import dbus
from dbus.mainloop.glib import DBusGMainLoop
from dbus.mainloop.glib import threads_init
import os
import signal
import sys
import threading
import logging
import getopt
import SyncEngine.config as Config
from SyncEngine.kernel import SyncEngine
logger = None
mainloop = None
#
# TerminationHandler
#
# Called when a request to terminate has been received, used to shut down
# the main loop
def TerminationHandler(signum, frame):
logger.info("Received termination signal. Exiting")
engine.StopSessions()
gobject.idle_add(mainloop.quit)
#
# MAIN ENTRY POINT
#
if __name__ == "__main__":
try:
progopts = Config.ValidateCommandOptions(sys.argv[1:])
except Exception,e:
if str(e) != "usage":
print
print "Command line error"
print
exit(0)
print "SynCE sync-engine starting up"
configObj = Config.Config(progopts)
# now, if we need to log, open our log file
if configObj.logfile != None:
try:
logstream = open(configObj.logfile,"wb")
except:
print "error: unable to open logfile %s, logging redirected to stdout" % configObj.logfile
logstream = sys.stdout
else:
logstream = sys.stdout
# now fork, if we need to
if configObj.fork==True:
try:
forkPid = os.fork()
if forkPid > 0:
print "SynCE sync-engine started as PID %d" % forkPid
sys.exit(0)
except OSError,e:
print "error: failed to fork - running in foreground (%s)" % e.strerror
pass
# if we get here, we're running in the daemon thread
# decouple from our terminal
os.chdir("/")
os.setsid()
# Redirect stdout and stderr to the logfile - unless the logfile is itself
# stdout in which case redirect it to /dev/null
f=os.open("/dev/null",os.O_RDWR)
if logstream != sys.stdout:
os.dup2(logstream.fileno(),1)
os.dup2(logstream.fileno(),2)
else:
os.dup2(f,1)
os.dup2(f,2)
# Redirect stdin to /dev/null
os.dup2(f,0)
if f>2:
os.close(f)
#
# Here, we are either the child process, or we are running in the foreground
logging.basicConfig(level=configObj.loglevel,
stream=logstream,
format='%(asctime)s %(levelname)s %(name)s : %(message)s')
logger = logging.getLogger("syncengine")
DBusGMainLoop(set_as_default=True)
logger.debug("running main loop")
gobject.threads_init()
dbus.mainloop.glib.threads_init()
mainloop = gobject.MainLoop()
logger.debug("creating SyncEngine object")
engine = SyncEngine(configObj,mainloop)
logger.debug("installing signal handlers")
signal.signal(signal.SIGTERM, TerminationHandler)
signal.signal(signal.SIGINT, TerminationHandler)
try:
mainloop.run()
except KeyboardInterrupt:
pass
logger.debug("waiting for engine to clean up")
engine.WaitForStoppingSessions()
|
