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
|
import sys, os
import logging
import traceback
from cStringIO import StringIO
import dbus
#internals of D-Bus Python are changing
#try not to use it in the future
if dbus.version < (0, 70, 0):
import dbus.dbus_bindings
import gobject
from sugar import env
__queue = None
CONSOLE_BUS_NAME = 'org.laptop.Sugar.Console'
CONSOLE_OBJECT_PATH = '/org/laptop/Sugar/Console'
CONSOLE_IFACE = 'org.laptop.Sugar.Console'
class MessageQueue:
def __init__(self, console, console_id):
self._idle_id = 0
self._console = console
self._console_id = console_id
self._levels = []
self._messages = []
self._bus = dbus.SessionBus()
if self._console == None:
con = self._bus._connection
name_has_owner = False
try:
name_has_owner = dbus.dbus_bindings.bus_name_has_owner(con, CONSOLE_BUS_NAME)
except:
name_has_owner = con.name_has_owner(CONSOLE_BUS_NAME)
if name_has_owner:
self.setup_console()
else:
self._bus.add_signal_receiver(
self.__name_owner_changed,
dbus_interface = "org.freedesktop.DBus",
signal_name = "NameOwnerChanged")
def setup_console(self):
proxy_obj = self._bus.get_object(CONSOLE_BUS_NAME,
CONSOLE_OBJECT_PATH)
self._console = dbus.Interface(proxy_obj, CONSOLE_IFACE)
self._queue_log()
def __name_owner_changed(self, service_name, old_name, new_name):
if service_name == CONSOLE_BUS_NAME:
if new_name != None:
self.setup_console()
else:
self._console = None
def _queue_log(self):
if self._idle_id == 0:
self._idle_id = gobject.idle_add(self._log)
def _log(self):
# Use stderr for now until dbus issues get sorted out
use_dbus = False
if use_dbus:
if self._console == None or len(self._messages) == 0:
self._idle_id = 0
return False
if isinstance(self._console, dbus.Interface):
self._console.log(self._console_id, self._levels,
self._messages, timeout = 1000)
else:
self._console.log(self._console_id, self._levels,
self._messages)
else:
for x in range(0, len(self._messages)):
level = self._levels[x]
msg = self._messages[x]
prog = os.path.basename(sys.argv[0])
fmt = "%s (%s): Level %s - %s\n" % (prog, os.getpid(), level, msg)
fmt = fmt.encode("utf8")
sys.stderr.write(fmt)
self._levels = []
self._messages = []
self._idle_id = 0
return False
def append_record(self, record):
self.append(record.levelno, record.msg)
def append(self, level, message):
self._levels.append(level)
self._messages.append(message)
self._queue_log()
class Handler(logging.Handler):
def __init__(self, queue):
logging.Handler.__init__(self)
self._queue = queue
def emit(self, record):
self._queue.append_record(record)
def __exception_handler(typ, exc, tb):
trace = StringIO()
traceback.print_exception(typ, exc, tb, None, trace)
print >> sys.stderr, trace.getvalue()
__queue.append(logging.ERROR, trace.getvalue())
def start(console_id, console = None):
queue = MessageQueue(console, console_id)
root_logger = logging.getLogger('')
root_logger.setLevel(logging.DEBUG)
root_logger.addHandler(Handler(queue))
log_file = os.path.join(env.get_profile_path(), 'sugar.log')
fileh = logging.FileHandler(log_file)
fileh.setFormatter(logging.Formatter("""[%(asctime)s] %(message)s"""))
root_logger.addHandler(fileh)
global __queue
__queue = queue
sys.excepthook = __exception_handler
|