Class GetSet
In: lib/boxgrinder-build/util/concurrent/get_set.rb
lib/boxgrinder-build/util/concurrent/get_set.rb
Parent: Object

Methods

get_set   get_set   new   new  

Public Class methods

new(initial_state=false)

[Source]

    # File lib/boxgrinder-build/util/concurrent/get_set.rb, line 22
22:   def initialize(initial_state=false)
23:     @val = initial_state
24:     @mutex = Mutex.new
25:   end
new(initial_state=false)

[Source]

    # File lib/boxgrinder-build/util/concurrent/get_set.rb, line 22
22:   def initialize(initial_state=false)
23:     @val = initial_state
24:     @mutex = Mutex.new
25:   end

Public Instance methods

get_set(set_val=nil, &blk)

Atomic get-and-set.

When used with a block, the existing value is provided as an argument to the block. The block‘s return value sets the object‘s value state.

When used without a block; if a nil set_val parameter is provided the existing state is returned. Else the object value state is set to set_val

[Source]

    # File lib/boxgrinder-build/util/concurrent/get_set.rb, line 36
36:   def get_set(set_val=nil, &blk)
37:     @mutex.synchronize do
38:       if block_given?
39:         @val = blk.call(@val)
40:       else
41:         @val = set_val unless set_val.nil?
42:       end
43:       @val
44:     end
45:   end
get_set(set_val=nil, &blk)

Atomic get-and-set.

When used with a block, the existing value is provided as an argument to the block. The block‘s return value sets the object‘s value state.

When used without a block; if a nil set_val parameter is provided the existing state is returned. Else the object value state is set to set_val

[Source]

    # File lib/boxgrinder-build/util/concurrent/get_set.rb, line 36
36:   def get_set(set_val=nil, &blk)
37:     @mutex.synchronize do
38:       if block_given?
39:         @val = blk.call(@val)
40:       else
41:         @val = set_val unless set_val.nil?
42:       end
43:       @val
44:     end
45:   end

[Validate]