Class Jabber::Semaphore
In: lib/xmpp4r/semaphore.rb
Parent: Object
Message Presence XMPPStanza Iq Singleton IdGenerator XMPPElement X IqQuery Error Connection Client Component Client Comparable JID RuntimeError AuthenticationFailure ErrorException NoNameXmlnsRegistered SOCKS5Error REXML::Element Stream SOCKS5Bytestreams SOCKS5BytestreamsTarget SOCKS5BytestreamsInitiator XMPPElement StreamHost IqSiFileRange IqSiFile StreamHostUsed IqSi XRosterItem RosterItem IqFeature XMUCUserItem XMUCUserInvite IqPubSub Items Item Event Feature Item Identity XDataField XDataReported XDataTitle XDataInstructions IqVcard SOCKS5BytestreamsServerStreamHost TCPSocket SOCKS5Socket IqQuery IqQueryBytestreams IqQueryVersion IqQueryRoster IqQueryMUCOwner IqQueryRPC IqQueryDiscoItems IqQueryDiscoInfo IBB IBBTarget IBBInitiator Responder SimpleResponder Iq IqCommand RosterXItem XRoster RosterX X XMUCUser XMUC XDelay XData XParent MUCClient SimpleMUCClient XMLRPC::ParserWriterChooseMixin Client Server XMLRPC::ParseContentType XMLRPC::BasicServer Base DigestMD5 Plain ServiceHelper NodeHelper FileSource CallbackList Callback Semaphore StreamParser SOCKS5BytestreamsPeer SOCKS5BytestreamsServer IBBQueueItem Responder Helper MUCBrowser NodeBrowser Helper Helper lib/xmpp4r/authenticationfailure.rb lib/xmpp4r/xmppstanza.rb lib/xmpp4r/callbacks.rb lib/xmpp4r/idgenerator.rb lib/xmpp4r/connection.rb lib/xmpp4r/iq.rb lib/xmpp4r/jid.rb lib/xmpp4r/errorexception.rb lib/xmpp4r/client.rb lib/xmpp4r/stream.rb lib/xmpp4r/semaphore.rb lib/xmpp4r/streamparser.rb lib/xmpp4r/x.rb lib/xmpp4r/error.rb lib/xmpp4r/component.rb lib/xmpp4r/query.rb lib/xmpp4r/xmppelement.rb lib/xmpp4r/message.rb lib/xmpp4r/presence.rb lib/xmpp4r/bytestreams/helper/ibb/initiator.rb lib/xmpp4r/bytestreams/iq/si.rb lib/xmpp4r/bytestreams/iq/bytestreams.rb lib/xmpp4r/bytestreams/helper/socks5bytestreams/base.rb lib/xmpp4r/bytestreams/helper/socks5bytestreams/server.rb lib/xmpp4r/bytestreams/helper/socks5bytestreams/target.rb lib/xmpp4r/bytestreams/helper/socks5bytestreams/socks5.rb lib/xmpp4r/bytestreams/helper/socks5bytestreams/initiator.rb lib/xmpp4r/bytestreams/helper/ibb/base.rb lib/xmpp4r/bytestreams/helper/ibb/target.rb Bytestreams XParent lib/xmpp4r/version/iq/version.rb lib/xmpp4r/version/helper/responder.rb lib/xmpp4r/version/helper/simpleresponder.rb Version lib/xmpp4r/command/iq/command.rb lib/xmpp4r/command/helper/responder.rb Command lib/xmpp4r/roster/helper/roster.rb lib/xmpp4r/roster/iq/roster.rb lib/xmpp4r/roster/x/roster.rb Roster lib/xmpp4r/feature_negotiation/iq/feature.rb FeatureNegotiation lib/xmpp4r/muc/x/muc.rb lib/xmpp4r/muc/helper/mucclient.rb lib/xmpp4r/muc/x/mucuseritem.rb lib/xmpp4r/muc/helper/mucbrowser.rb lib/xmpp4r/muc/x/mucuserinvite.rb lib/xmpp4r/muc/iq/mucowner.rb lib/xmpp4r/muc/helper/simplemucclient.rb MUC lib/xmpp4r/rpc/helper/server.rb lib/xmpp4r/rpc/helper/client.rb lib/xmpp4r/rpc/iq/rpc.rb RPC lib/xmpp4r/sasl.rb SASL lib/xmpp4r/delay/x/delay.rb Delay lib/xmpp4r/pubsub/helper/servicehelper.rb lib/xmpp4r/pubsub/stanzas/item.rb lib/xmpp4r/pubsub/helper/nodehelper.rb lib/xmpp4r/pubsub/iq/pubsub.rb lib/xmpp4r/pubsub/stanzas/event.rb lib/xmpp4r/pubsub/helper/nodebrowser.rb lib/xmpp4r/pubsub/stanzas/items.rb PubSub lib/xmpp4r/httpbinding/client.rb HTTPBinding lib/xmpp4r/bytestreams/helper/filetransfer.rb TransferSource FileTransfer lib/xmpp4r/discovery/iq/discoinfo.rb lib/xmpp4r/discovery/iq/discoitems.rb Discovery lib/xmpp4r/dataforms/x/data.rb Dataforms lib/xmpp4r/vcard/helper/vcard.rb lib/xmpp4r/vcard/iq/vcard.rb Vcard Jabber dot/m_79_0.png

This class implements semaphore for threads synchronization.

Methods

new   run   wait  

Public Class methods

Initialize new semaphore

val:[Integer] number of threads, that can enter to section

[Source]

    # File lib/xmpp4r/semaphore.rb, line 14
14:     def initialize(val=0)
15:       @tickets = val
16:       @lock = Mutex.new
17:       @cond = ConditionVariable.new
18:     end

Public Instance methods

Unlocks guarded section, increments number of free tickets

[Source]

    # File lib/xmpp4r/semaphore.rb, line 31
31:     def run
32:       @lock.synchronize {
33:         @tickets += 1
34:         @cond.signal
35:       }
36:     end

Waits until are available some free tickets

[Source]

    # File lib/xmpp4r/semaphore.rb, line 22
22:     def wait
23:       @lock.synchronize {
24:         @cond.wait(@lock) while !(@tickets > 0)
25:         @tickets -= 1
26:       }
27:     end

[Validate]