Class: LS4::LocalMemoryMDSCache

Inherits:
MDSCache
  • Object
show all
Defined in:
lib/ls4/service/mds_cache_mem.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ LocalMemoryMDSCache

Returns a new instance of LocalMemoryMDSCache.



24
25
26
 
# File 'lib/ls4/service/mds_cache_mem.rb', line 24

def initialize
	require 'tokyocabinet'
end

Instance Method Details

#close ⇒ Object 



41
42
43
 
# File 'lib/ls4/service/mds_cache_mem.rb', line 41

def close
	@db.close
end

#get(key) ⇒ Object 



45
46
47
 
# File 'lib/ls4/service/mds_cache_mem.rb', line 45

def get(key)
	@db[key]
end

#invalidate(key) ⇒ Object 



53
54
55
 
# File 'lib/ls4/service/mds_cache_mem.rb', line 53

def invalidate(key)
	@db.delete(key)
end

#open(expr) ⇒ Object 



28
29
30
31
32
33
34
35
36
37
38
39
 
# File 'lib/ls4/service/mds_cache_mem.rb', line 28

def open(expr)
	@db = TokyoCabinet::ADB.new
	if expr.empty?
		@size = "32m"
	else
		@size = expr
	end
	name = "+#capsiz=#{@size}"
	unless @db.open(name)
		raise "failed to MDS local memory cache database: #{@db.errmsg(@db.ecode)}"
	end
end

#set(key, val) ⇒ Object 



49
50
51
 
# File 'lib/ls4/service/mds_cache_mem.rb', line 49

def set(key, val)
	@db[key] = val
end

#to_s ⇒ Object 



57
58
59
 
# File 'lib/ls4/service/mds_cache_mem.rb', line 57

def to_s
	"<LocalMemoryMDSCache size=#{@size}>"
end