Class: EY::Snaplock::Database::MySQL

Inherits:
Object
  • Object
show all
Defined in:
lib/ey_snaplock/database/mysql.rb

Instance Method Summary collapse

Constructor Details

#initialize(uri) ⇒ MySQL

Returns a new instance of MySQL.



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# File 'lib/ey_snaplock/database/mysql.rb', line 5

def initialize(uri)
  @mysql = mysql_command(uri)
end

Instance Method Details

#lock_filename ⇒ Object 



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# File 'lib/ey_snaplock/database/mysql.rb', line 9

def lock_filename
  ENV["MYSQL_LOCK_FILENAME"] || "/var/run/ey_snaplock_mysql.pid"
end

#with_lock(timeout) ⇒ Object 



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# File 'lib/ey_snaplock/database/mysql.rb', line 13

def with_lock(timeout)
  acquire_lock_within_timeout(timeout)
  write_master_status(ENV["MASTER_STATUS_FILE"] || "/db/mysql/.snapshot_backup_master_status.txt")
  yield
rescue Timeout::Error
  lock_timeout(timeout)
ensure
  release_lock
end