Майстер Михаил (Севастополь) SemClass 15005			Могиленец Виктор, Севастополь SemClass 15323
f	1	from collections import deque	f	1	from collections import deque
	2			2
	3	class Lock:		3	class Lock:
	4	busy = {}		4	busy = {}
	5	sems = {}		5	sems = {}
	6			6
	7	def __init__(self, par):		7	def __init__(self, par):
	8	self.par = par		8	self.par = par
	9	self._lock = None		9	self._lock = None
	10	self.sem = None		10	self.sem = None
	11			11
	12	def __str__(self):		12	def __str__(self):
	13	return str(self.par)		13	return str(self.par)
	14			14
	15	@property		15	@property
	16	def lock(self):		16	def lock(self):
	17	if self.sem not in Lock.busy:		17	if self.sem not in Lock.busy:
	18	for k, v in Lock.sems.items():		18	for k, v in Lock.sems.items():
	19	if self.par in v:		19	if self.par in v:
	20	self._lock = self.sem		20	self._lock = self.sem
	21	Lock.busy[self.sem] = self.par		21	Lock.busy[self.sem] = self.par
n	22	elif self.par == Lock.busy[self.sem]:	n	22	elif self.par != Lock.busy[self.sem]:
	23	pass
	24	else:
	25	self._lock = None		23	self._lock = None
	26	return self._lock		24	return self._lock
	27			25
	28	@lock.setter		26	@lock.setter
	29	def lock(self, value):		27	def lock(self, value):
n	30	tmp = Lock.busy.items()	n	28	busy = Lock.busy.items()
	31	for k, v in tmp:		29	for k, v in busy:
	32	if self.par == v:		30	if self.par == v:
	33	del Lock.busy[k]		31	del Lock.busy[k]
	34	break		32	break
	35	for k, v in Lock.sems.items():		33	for k, v in Lock.sems.items():
	36	if self.par in v:		34	if self.par in v:
	37	Lock.sems[k].remove(self.par)		35	Lock.sems[k].remove(self.par)
	38	break		36	break
	39	self.sem = value		37	self.sem = value
	40	try:		38	try:
	41	Lock.sems[value].append(self.par)		39	Lock.sems[value].append(self.par)
	42	except:		40	except:
	43	Lock.sems[value] = deque([self.par])		41	Lock.sems[value] = deque([self.par])
	44			42
	45	@lock.deleter		43	@lock.deleter
	46	def lock(self):		44	def lock(self):
n	47	tmp = Lock.busy.items()	n	45	busy = Lock.busy.items()
	48	for k, v in tmp:		46	for k, v in busy:
	49	if self.par == v:		47	if self.par == v:
	50	del Lock.busy[k]		48	del Lock.busy[k]
	51	break		49	break
	52	for k, v in Lock.sems.items():		50	for k, v in Lock.sems.items():
	53	if v:		51	if v:
	54	if self.par == v[0]:		52	if self.par == v[0]:
	55	Lock.sems[k].popleft()		53	Lock.sems[k].popleft()
	56			54
	57	def __del__(self):		55	def __del__(self):
n	58	tmp = Lock.busy.items()	n	56	busy = Lock.busy.items()
	59	for k, v in tmp:		57	for k, v in busy:
	60	if self.par == v:		58	if self.par == v:
	61	del Lock.busy[k]		59	del Lock.busy[k]
	62	break		60	break
	63	for k, v in Lock.sems.items():		61	for k, v in Lock.sems.items():
	64	if self.par in v:		62	if self.par in v:
	65	Lock.sems[k].remove(self.par)		63	Lock.sems[k].remove(self.par)
	66			64
	67	def locked(self):		65	def locked(self):
t	68		t
	69	class locked_class(Lock):
	70	pass
	71	return locked_class		66	return Lock

Legends
Colors  Added  Changed Deleted	Links (f)irst change (n)ext change (t)op