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