Deprecated Streams Advanced Queuing Functions

Table E-8 lists the deprecated Streams Advanced Queuing functions that are described in this section.

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OCIAQListen()

Purpose

Listens on one or more queues on behalf of a list of agents. This function is deprecated. Use OCIAQListen2().

Syntax

sword OCIAQListen (OCISvcCtx      *svchp, 
                   OCIError       *errhp,
                   OCIAQAgent     **agent_list, 
                   ub4            num_agents,
                   sb4            wait, 
                   OCIAQAgent     **agent,
                   ub4            flags);

Parameters

svchpp (IN/OUT)

The service context handle.

errhp (IN/OUT)

An error handle that you can pass to OCIErrorGet() for diagnostic information when there is an error.

agent_list (IN)

List of agents for which to monitor messages.

num_agents (IN)

Number of agents in the agent list.

wait (IN)

Timeout interval for the listen call.

agent (OUT)

Agent for which there is a message. OCIAgent is an OCI descriptor.

flags (IN)

Not currently used; pass as OCI_DEFAULT.

Comments

This is a blocking call that returns when there is a message ready for consumption for an agent in the list. If there are no messages found when the wait time expires, an error is returned.

Related Functions

OCIAQEnq(), OCIAQDeq(), OCIAQListen2(), OCISvcCtxToLda(), OCISubscriptionEnable(), OCISubscriptionPost(), OCISubscriptionRegister(), OCISubscriptionUnRegister()