Class: Moped::BSON::ObjectId::Generator Private
- Defined in:
- lib/moped/bson/object_id.rb
This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.
Instance Method Summary collapse
-
#generate(time, counter = 0) ⇒ Object
private
Generate object id data for a given time using the provided
counter
. -
#initialize ⇒ Generator
constructor
private
A new instance of Generator.
-
#next(time = nil) ⇒ Object
private
Return object id data based on the current time, incrementing the object id counter.
Constructor Details
#initialize ⇒ Generator
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
Returns a new instance of Generator.
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# File 'lib/moped/bson/object_id.rb', line 269 def initialize # Generate and cache 3 bytes of identifying information from the current # machine. @machine_id = Digest::MD5.digest(Socket.gethostname).unpack("N")[0] @mutex = Mutex.new @counter = 0 end |
Instance Method Details
#generate(time, counter = 0) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
Generate object id data for a given time using the provided counter
.
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# File 'lib/moped/bson/object_id.rb', line 292 def generate(time, counter = 0) process_thread_id = "#{Process.pid}#{Thread.current.object_id}".hash % 0xFFFF [time, @machine_id, process_thread_id, counter << 8].pack("N NX lXX NX") end |
#next(time = nil) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
Return object id data based on the current time, incrementing the object id counter.
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# File 'lib/moped/bson/object_id.rb', line 280 def next(time = nil) @mutex.lock begin counter = @counter = (@counter + 1) % 0xFFFFFF ensure @mutex.unlock rescue nil end generate(time || Time.new.to_i, counter) end |