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
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
require "spec/helper/all"
describe EventMachine::Synchrony::Thread::Mutex do
let(:m) { EM::Synchrony::Thread::Mutex.new }
it "should synchronize" do
EM.synchrony do
i = 0
f1 = Fiber.new do
m.synchronize do
f = Fiber.current
EM.next_tick { f.resume }
Fiber.yield
i += 1
end
end.resume
f1 = Fiber.new do
m.synchronize do
i.should eql(1)
EM.stop
end
end.resume
end
end
describe "lock" do
describe "when mutex already locked" do
it "should raise ThreadError" do
f = Fiber.new do
m.lock
Fiber.yield
m.lock
end
f.resume
proc { f.resume }.should raise_error(FiberError)
end
end
end
describe "sleep" do
describe "without timeout" do
it "should sleep until resume" do
EM.synchrony do
m.lock
i = 0
f = Fiber.current
EM.next_tick { i += 1; f.resume }
res = m.sleep
i.should eql(1)
EM.stop
end
end
it "should release lock" do
EM.synchrony do
i = 0
Fiber.new do
m.lock
f = Fiber.current
EM.next_tick { f.resume }
Fiber.yield
i += 1
m.sleep
end.resume
Fiber.new do
m.lock
i.should eql(1)
EM.stop
end.resume
end
end
it "should wait unlock after resume" do
EM.synchrony do
i = 0
f1 = Fiber.new do
m.lock
m.sleep
i.should eql(1)
EM.stop
end
f2 = Fiber.new do
m.lock
f1.resume
i += 1
m.unlock
end
f1.resume
f2.resume
end
end
describe "with timeout" do
it "should sleep for timeout" do
EM.synchrony do
m.lock
i = 0
EM.next_tick { i += 1 }
m.sleep(0.05)
i.should eql(1)
EM.stop
end
end
describe "and resume before timeout" do
it "should not raise any execptions" do
EM.synchrony do
m.lock
f = Fiber.current
EM.next_tick { f.resume }
m.sleep(0.05)
EM.add_timer(0.1) { EM.stop }
end
end
it "should resume in nested Fiber" do
EM.synchrony do
f = Fiber.new do
m.synchronize do
t = m.sleep(0.05)
t.should >= 0.05
end
EM.stop
end
f.resume
end
end
end
end
end
end
describe EventMachine::Synchrony::Thread::ConditionVariable do
let(:c){ EM::Synchrony::Thread::ConditionVariable.new }
it "should wakeup waiter" do
i = ''
EM.synchrony do
f1 = Fiber.new do
m.synchronize do
i << 'a'
c.wait(m)
i << 'c'
end
EM.stop
end.resume
f2 = Fiber.new do
i << 'b'
c.signal
end.resume
end
i.should == 'abc'
end
it 'should allow to play ping-pong' do
i = ''
EM.synchrony do
f1 = Fiber.new do
m.synchronize do
i << 'pi'
c.wait(m)
i << '-po'
c.signal
end
end.resume
f2 = Fiber.new do
m.synchronize do
i << 'ng'
c.signal
c.wait(m)
i << 'ng'
end
EM.stop
end.resume
end
i.should == 'ping-pong'
end
it 'should not raise, when timer wakes up fiber between `signal` and `next_tick`' do
proc {
EM.synchrony do
f = Fiber.new do
m.synchronize do
c.wait(m, 0.0001)
end
EM.add_timer(0.001){ EM.stop }
end
i = 0
f.resume
EM.next_tick{
c.signal
}
end
}.should_not raise_error
end
end
end
|
