/
mri_map_backend.rb
66 lines (51 loc) · 1.43 KB
/
mri_map_backend.rb
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
require 'thread'
require 'concurrent/collection/map/non_concurrent_map_backend'
module Concurrent
# @!visibility private
module Collection
# @!visibility private
class MriMapBackend < NonConcurrentMapBackend
def initialize(options = nil, &default_proc)
super(options, &default_proc)
@write_lock = Mutex.new
end
def []=(key, value)
@write_lock.synchronize { super }
end
def compute_if_absent(key)
if NULL != (stored_value = @backend.fetch(key, NULL)) # fast non-blocking path for the most likely case
stored_value
else
@write_lock.synchronize { super }
end
end
def compute_if_present(key)
@write_lock.synchronize { super }
end
def compute(key)
@write_lock.synchronize { super }
end
def merge_pair(key, value)
@write_lock.synchronize { super }
end
def replace_pair(key, old_value, new_value)
@write_lock.synchronize { super }
end
def replace_if_exists(key, new_value)
@write_lock.synchronize { super }
end
def get_and_set(key, value)
@write_lock.synchronize { super }
end
def delete(key)
@write_lock.synchronize { super }
end
def delete_pair(key, value)
@write_lock.synchronize { super }
end
def clear
@write_lock.synchronize { super }
end
end
end
end