Module: Regurgitator::Domain

Included in:
FileInfo, ListKeys
Defined in:
lib/regurgitator/domain.rb

Overview

helpers for domain lookups

Instance Method Summary collapse

Instance Method Details

#domain_init ⇒ Object

:nodoc:



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# File 'lib/regurgitator/domain.rb', line 5

def domain_init
  @domain_lock = Mutex.new
  @domain_cache_mtime = 0
  @domain_cache = nil
end

#get_dmid(domain) ⇒ Object

returns the dmid (domain identifier/primary key) for a string domain



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# File 'lib/regurgitator/domain.rb', line 12

def get_dmid(domain)
  refresh_domain[domain] || false
end

#refresh_domain ⇒ Object

We cache the list of all available domains in memory, this shouldn’t be too huge, though…

Returns a hash with string namespaces as keys and dmids as values



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# File 'lib/regurgitator/domain.rb', line 20

def refresh_domain # :nodoc:
  @domain_lock.synchronize { refresh_domain_unlocked }
end

#refresh_domain_unlocked ⇒ Object

:nodoc:



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# File 'lib/regurgitator/domain.rb', line 24

def refresh_domain_unlocked # :nodoc:
  return @domain_cache if ((Regurgitator.now - @domain_cache_mtime) < 15)
  tmp = {}
  @db['SELECT dmid,namespace FROM domain'.freeze].each do |x|
    tmp[x[:namespace].freeze] = x[:dmid]
  end
  @domain_cache_mtime = Regurgitator.now
  @domain_cache = tmp
end