Class: TN::AdvisoryLock
- Inherits:
-
Object
- Object
- TN::AdvisoryLock
- Defined in:
- lib/tn/advisory_lock.rb
Class Method Summary collapse
-
.string_to_int(string) ⇒ Object
Convert a string to a int that’s needed for the advisory lock.
- .with_lock(key, wait: false) ⇒ Object
Instance Method Summary collapse
- #exclusive ⇒ Object
-
#initialize(key, wait: false) ⇒ AdvisoryLock
constructor
A new instance of AdvisoryLock.
Constructor Details
#initialize(key, wait: false) ⇒ AdvisoryLock
Returns a new instance of AdvisoryLock.
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# File 'lib/tn/advisory_lock.rb', line 4 def initialize(key, wait: false) key = self.class.string_to_int(key) unless key.is_a?(Integer) @key = key @wait = wait end |
Class Method Details
.string_to_int(string) ⇒ Object
Convert a string to a int that’s needed for the advisory lock.
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# File 'lib/tn/advisory_lock.rb', line 11 def self.string_to_int(string) Digest::SHA1.hexdigest(string)[0..10].to_i(36) end |
.with_lock(key, wait: false) ⇒ Object
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# File 'lib/tn/advisory_lock.rb', line 15 def self.with_lock(key, wait: false) result = nil new(key, wait: wait).exclusive do result = yield end result end |
Instance Method Details
#exclusive ⇒ Object
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# File 'lib/tn/advisory_lock.rb', line 23 def exclusive if acquired? begin yield ensure release! end else return false end true end |