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
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
# ############################################################################ #
# #
# ::: :::::::: #
# philo.py :+: :+: :+: #
# +:+ +:+ +:+ #
# By: charles <me@cacharle.xyz> +#+ +:+ +#+ #
# +#+#+#+#+#+ +#+ #
# Created: 2020/09/27 17:49:41 by charles #+# #+# #
# Updated: 2020/09/29 15:16:16 by cacharle ### ########.fr #
# #
# ############################################################################ #
import re
import enum
import itertools
import test.error as error
from helper import current_ms
class Event(enum.Enum):
EATING = 1
SLEEPING = 2
THINKING = 3
DIED = 4
NONE = 5
@staticmethod
def to_verb(event):
return {
Event.EATING: "eat",
Event.SLEEPING: "sleep",
Event.THINKING: "think",
Event.DIED: "die",
Event.NONE: "none",
}[event]
class Log:
def __init__(self, line, philo_num, start_time):
match = re.match(
r"^(?P<timestamp>\d+) "
r"(?P<id>\d+) "
r"(?P<event>is thinking|is eating|is sleeping|died)$",
line
)
if match is None:
raise error.Format(line, "wrong format")
self._line = line
self.id = self._parse_ranged_int(match.group("id"), 1, philo_num)
self.timestamp = self._parse_ranged_int(
match.group("timestamp"), start_time, current_ms())
self.event = {
"is thinking": Event.THINKING,
"is eating": Event.EATING,
"is sleeping": Event.SLEEPING,
"died": Event.DIED,
}[match.group('event')]
def _parse_ranged_int(self, s, lo, hi):
try:
value = int(s)
if not (lo <= value <= hi):
raise error.Format(self._line,
"{} should be between {} - {}".format(s, lo, hi))
except ValueError:
raise error.Format(self._line, "{} sould be an integer".format(s))
return value
def __repr__(self):
return "{}ms #{} {}".format(self.timestamp, self.id, self.event)
class Philo:
def __init__(
self,
id_: int,
timeout_die: int,
timeout_eat: int,
timeout_sleep: int,
meal_num: int
):
self._logs = []
self.id = id_
self._timeout_die = timeout_die
self._timeout_eat = timeout_eat
self._timeout_sleep = timeout_sleep
self._meal_num = meal_num
def add_log(self, log):
self._logs.append(log)
def check(self):
if len(self._logs) == 0:
return
grouped = [(e, list(g)) for e, g in itertools.groupby(self._logs, (lambda x: x.event))]
for e, g in grouped:
if e is Event.EATING:
if len(g) != self._meal_num:
raise error.Log(self._logs, "should eat {} times".format(self._meal_num))
else:
if len(g) != 1:
raise error.Log(self._logs, "should {} 1 time".format(Event.to_verb(e)))
# events = [e for e, _ in grouped]
for l1, l2 in zip(self._logs, self._logs[1:]):
if l2.event is Event.DIED:
break
if l1.event is Event.EATING and l2.event is Event.EATING:
if l2.timestamp - l1.timestamp > self._timeout_eat:
raise ValueError
second, timeout = {
Event.THINKING: (Event.EATING, None),
Event.EATING: (Event.SLEEPING, self._timeout_eat),
Event.SLEEPING: (Event.THINKING, self._timeout_sleep)
}[l1.event]
if l2.event is not second:
raise error.Log(self._logs, "invalid switch {} -> {}".format(l1.event, l2.event))
if timeout is not None and l2.timestamp - l1.timestamp > timeout:
raise ValueError
last_eat = None
for log in reversed(self._logs):
if log.event is Event.EATING:
last_eat = log
break
last = self._logs[-1]
if last_eat is not None and last_eat is not last:
if last.timestamp - last_eat.timestamp > self._timeout_die + 10:
raise error.Log(self._logs, "{} should be dead {} - {} > {}".format(
self.id, last.timestamp, last_eat.timestamp, self._timeout_die + 10))
@property
def last_event(self):
if len(self._logs) == 0:
return Event.NONE
return self._logs[-1].event
class Table:
def __init__(
self,
philo_num: int,
timeout_die: int,
timeout_eat: int,
timeout_sleep: int,
meal_num: int
):
self._philos = [Philo(id_, timeout_die, timeout_eat, timeout_sleep, meal_num)
for id_ in range(1, philo_num + 1)]
self._logs = []
self._philo_num = philo_num
self.dead = False
def add_log(self, log):
self._logs.append(log)
philo = next(p for p in self._philos if p.id == log.id)
philo.add_log(log)
if self.dead:
raise error.Log(self._logs, "should not output after death")
if log.event is Event.DIED:
self.dead = True
def check(self):
if self.dead:
return
fork_used = 2 * len([p for p in self._philos if p.last_event == Event.EATING])
if fork_used > self._philo_num:
raise error.Log(self._logs, "using nonexistant forks")
for l1, l2 in zip(self._logs, self._logs[1:]):
if l1.timestamp > l2.timestamp:
raise error.Log(self._logs, "timestamp not in ordered")
for p in self._philos:
p.check()
|
