def hover(event):
global moves
canvas = event.widget
ids = canvas.find_overlapping(event.x - 2, event.y - 2, event.x + 2, event.y + 2)
for id in ids:
host = Host.ovaltohost.get(canvas.items.get(id))
if host:
time.sleep(TF * 0.1)
text = '%s:%s (%s files)' % (
host.addr, host.port, host.files)
if hasattr(host, 'kb'):
other = host.counts.get('other', 0)
pong = host.counts.get('pong', 0)
query = host.counts.get('query', 0)
text = '%s:%s (%s files, %s kb)\n' % (
host.addr, host.port, host.files, host.kb) + \
'%d messages (%d queries, %d pongs)' % (
other + pong + query, query, pong)
canvas.itemconfig(info, text=text)
canvas.tkraise(info)
host.flash('pink')
moves = 5
break
else:
if moves > 0:
moves = moves - 1
if moves == 0:
canvas.itemconfig(info, text='')
canvas.tkraise(info)
def click(event):
canvas = event.widget
ids = canvas.find_overlapping(event.x - 2, event.y - 2, event.x + 2, event.y + 2)
for id in ids:
host = Host.ovaltohost.get(canvas.items.get(id))
if host:
try: host.conn.query(TESTKEY, ttl=2)
except (IOError, AttributeError): pass
time.sleep(TF * 0.1)
host.flash('red')
break
def check():
global newcenter, nthreads
showthreads()
while workqueue and nthreads < MAXTHREADS:
(src, host, port) = workqueue.pop(0)
conn = gnut.ThrConn(host, port)
try:
conn.setDaemon(1)
conn.start()
except:
# print 'threading error', sys.exc_info()
workqueue.insert(0, (src, host, port))
# print 'think', nthreads
# nthreads = len(threading.enumerate()) - 1
# print 'actual', nthreads
# print 'threads:', threading.enumerate()
break
# nthreads = nthreads + 1
src.attempttime = time.time()
src.init(conn)
# print 'spawn', src
canvas.update()
for host in hosts.values():
if host.state in (Host.DROPPED, Host.REFUSED): continue
if newcenter: break
if host.conn and host.conn.messages:
for msg in host.conn.messages:
if isinstance(msg, gnut.Query) and msg.key == TESTKEY:
host.flash('red')
canvas.itemconfig(info, text=
'query echo from %s' % host.addr)
canvas.tkraise(info)
if host.conn.isAlive():
messages = host.conn.get(1)
else:
messages = filter(lambda msg: isinstance(msg, gnut.Pong),
host.conn.get())[:10]
host.conn.messages = []
if messages:
for msg in messages:
if isinstance(msg, gnut.Pong):
host.count('pong')
if msg.addr in ['127.0.0.1', '0.0.0.0']: continue
src = hosts.get(msg.addr)
if src:
src.resize(msg.files)
src.join(host)
else:
src = Host(canvas, msg.addr, msg.files, host)
src.kb = msg.kb
src.port = msg.port
top.arrange()
hosts[msg.addr] = src
workqueue.append((src, msg.addr, msg.port))
elif isinstance(msg, gnut.Query):
host.count('query')
if msg.key == TESTKEY:
host.flash('red')
canvas.itemconfig(info, text=
'query echo from %s' % host.addr)
canvas.tkraise(info)
host.gotquery(msg.key)
if msg.key and 32 <= ord(msg.key[0]) < 127:
key = string.join(string.split(msg.key, '\x00'), '')
querylist.append(key)
text = string.join(querylist[-60:], '\n')
canvas.itemconfig(queries, text=text)
else:
host.count('other')
canvas.update()
time.sleep(TF * 0.05)
if host.state == Host.CONNECTING:
if host.conn.connected:
nthreads = nthreads + 1
showthreads()
host.connecttime = time.time()
host.connect()
try: host.conn.ping(ttl=2)
except IOError: pass
if host.conn and not host.conn.isAlive() and not host.conn.messages:
# print 'terminated', host
if host.state == Host.CONNECTED:
host.drop()
elif host.conn.error:
errmsg = string.lower(host.conn.error[1].args[-1])
if host.state == Host.CONNECTING:
if string.find(errmsg, 'refused') >= 0:
host.refuse()
else:
host.delete()
del hosts[host.conn.host]
nthreads = nthreads - 1
if nthreads > MAXTHREADS - 5:
def cmptime(a, b, now=time.time()):
at = a.__dict__.get('attempttime', now)
bt = a.__dict__.get('attempttime', now)
return cmp(at, bt)
h = filter(lambda h: h.conn and h.conn.isAlive() and
not h.conn.opening and not h.conn.closing,
hosts.values())
h.sort(cmptime)
for old in h[:nthreads - (MAXTHREADS - 5)]:
print 'killing off', old, old.conn.incollect, old.conn.inselect, \
old.conn.looping, old.conn.loopcount, old.conn.opening
old.conn.close()
if newcenter:
recenter(newcenter)
newcenter = None
lock = 0
canvas.tk.createtimerhandler(timestep * TF, check)
