### Home Classes Methods

### In Files

- lib/rbot/registry/bdb.rb
- lib/rbot/registry/tc.rb

### Parent

Object

### Methods

- ::cleanup_env
- ::cleanup_logs
- ::create_db
- ::new
- ::open_db
- ::stats
- #method_missing

### Class/Module Index

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No matching classes.

# Irc::DBTree

DBTree is a BTree equivalent of DBHash, with case insensitive lookups.

DBTree is a BTree equivalent of DBHash, with case insensitive lookups.

### Public Class Methods

cleanup_env() click to toggle source

    # File lib/rbot/registry/bdb.rb, line 179
    def DBTree.cleanup_env()
      begin
        debug "DBTree: checking transactions ..."
        has_active_txn = @@env.txn_stat["st_nactive"] > 0
        if has_active_txn
          warning "DBTree: not all transactions completed!"
        end
        DBTree.cleanup_logs
        debug "DBTree: closing environment #{@@env}"
        path = @@env.home
        @@env.close
        @@env = nil
        if has_active_txn
          debug "DBTree: keeping file because of incomplete transactions"
        else
          debug "DBTree: cleaning up environment in #{path}"
          BDB::Env.remove("#{path}")
        end
      rescue Exception => e
        error "failed to clean up environment: #{e.pretty_inspect}"
      end
    end

cleanup_logs() click to toggle source

    # File lib/rbot/registry/bdb.rb, line 144
    def DBTree.cleanup_logs()
      begin
        debug "DBTree: checkpointing ..."
        @@env.checkpoint
      rescue Exception => e
        debug "Failed: #{e.pretty_inspect}"
      end
      begin
        debug "DBTree: flushing log ..."
        @@env.log_flush
        logs = @@env.log_archive(BDB::ARCH_ABS)
        debug "DBTree: deleting archivable logs: #{logs.join(', ')}."
        logs.each { |log|
          File.delete(log)
        }
      rescue Exception => e
        debug "Failed: #{e.pretty_inspect}"
      end
    end

create_db(name) click to toggle source

    # File lib/rbot/registry/bdb.rb, line 134
    def DBTree.create_db(name)
      debug "DBTree: creating empty db #{name}"
      return @@env.open_db(BDB::CIBtree, name, nil, BDB::CREATE | BDB::EXCL, 0600)
    end

new(bot, key, absfilename=false) click to toggle source

absfilename | use `key` as an actual filename, don't prepend the bot's config path and don't append ".db"

    # File lib/rbot/registry/bdb.rb, line 98
    def initialize(bot, key, absfilename=false)
      @bot = bot
      @key = key
      if @@env.nil?
        begin
          @@env = BDB::Env.open(@bot.botclass, BDB::INIT_TRANSACTION | BDB::CREATE | BDB::RECOVER, "set_lg_max" => @@lg_max)
          debug "DBTree: environment opened with max log size #{@@env.conf['lg_max']}"
        rescue => e
          debug "DBTree: failed to open environment: #{e.pretty_inspect}. Retrying ..."
          @@env = BDB::Env.open(@bot.botclass, BDB::INIT_TRANSACTION | BDB::CREATE |  BDB::RECOVER)
        end
        #@@env = BDB::Env.open(@bot.botclass, BDB::CREATE | BDB::INIT_MPOOL | BDB::RECOVER)
      end

      relfilename = @bot.path key
      relfilename << '.db'

      if absfilename && File.exist?(key)
        # db already exists, use it
        @db = DBTree.open_db(key)
      elsif absfilename
        # create empty db
        @db = DBTree.create_db(key)
      elsif File.exist? relfilename
        # db already exists, use it
        @db = DBTree.open_db relfilename
      else
        # create empty db
        @db = DBTree.create_db relfilename
      end
    end

open_db(name) click to toggle source

    # File lib/rbot/registry/bdb.rb, line 139
    def DBTree.open_db(name)
      debug "DBTree: opening existing db #{name}"
      return @@env.open_db(BDB::CIBtree, name, nil, "r+", 0600)
    end

stats() click to toggle source

    # File lib/rbot/registry/bdb.rb, line 164
    def DBTree.stats()
      begin
        debug "General stats:"
        debug @@env.stat
        debug "Lock stats:"
        debug @@env.lock_stat
        debug "Log stats:"
        debug @@env.log_stat
        debug "Txn stats:"
        debug @@env.txn_stat
      rescue
        debug "Couldn't dump stats"
      end
    end

### Public Instance Methods

method_missing(method, *args, &block) click to toggle source

    # File lib/rbot/registry/bdb.rb, line 130
    def method_missing(method, *args, &block)
      return @db.send(method, *args, &block)
    end

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