Class Jabber::Semaphore
In: lib/xmpp4r/semaphore.rb
Parent: Object
Message Presence XMPPStanza Iq XMPPElement X IqQuery Error Singleton IdGenerator Connection Client Component Client Comparable JID RuntimeError ErrorException AuthenticationFailure NoNameXmlnsRegistered SOCKS5Error REXML::Element Stream SOCKS5Bytestreams SOCKS5BytestreamsTarget SOCKS5BytestreamsInitiator XMPPElement StreamHost IqSiFileRange IqSiFile StreamHostUsed IqSi IqFeature XRosterItem RosterItem XMUCUserItem XMUCUserInvite IqPubSub Items Subscription IqPubSubOwner Item Event Feature Identity Item XDataField XDataReported XDataTitle XDataInstructions IqVcard SOCKS5BytestreamsServerStreamHost TCPSocket SOCKS5Socket IqQuery IqQueryBytestreams IqQueryVersion IqQueryRoster IqQueryRPC IqQueryMUCOwner IqQueryDiscoItems IqQueryDiscoInfo IBB IBBTarget IBBInitiator Responder SimpleResponder Iq IqCommand RosterXItem XRoster RosterX X XMUCUser XMUC XDelay XData XMLRPC::ParserWriterChooseMixin Client Server XMLRPC::ParseContentType XMLRPC::BasicServer XParent MUCClient SimpleMUCClient Base DigestMD5 Plain FileSource ServiceHelper NodeHelper CallbackList Callback Semaphore StreamParser SOCKS5BytestreamsPeer SOCKS5BytestreamsServer IBBQueueItem Responder Helper MUCBrowser Helper NodeBrowser 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/semaphore.rb lib/xmpp4r/client.rb lib/xmpp4r/stream.rb lib/xmpp4r/x.rb lib/xmpp4r/streamparser.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/feature_negotiation/iq/feature.rb FeatureNegotiation lib/xmpp4r/roster/helper/roster.rb lib/xmpp4r/roster/iq/roster.rb lib/xmpp4r/roster/x/roster.rb Roster lib/xmpp4r/rpc/helper/server.rb lib/xmpp4r/rpc/helper/client.rb lib/xmpp4r/rpc/iq/rpc.rb RPC 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/sasl.rb SASL lib/xmpp4r/bytestreams/helper/filetransfer.rb TransferSource FileTransfer lib/xmpp4r/delay/x/delay.rb Delay lib/xmpp4r/pubsub/stanzas/subscription.rb 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/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_81_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]