HP-UX SNAplus2 CPI-C Programmer's Guide (June 2003)

Writing CPI-C Applications

CPI-C Call Summary

Chapter 2 73

WinCPICSetBlockingHook() Speciﬁes the blocking procedure that

CPI-C uses while processing blocking calls; this

replaces CPI-C's default blocking procedure. The

blocking procedure is called repeatedly until CPI-C has

ﬁnished processing the call.

WinCPICUnhookBlockingHook() Unregisters the blocking procedure

speciﬁed by a previous WinCPICSetBlockingHook()

call, so that CPI-C reverts to using the default blocking

procedure.

End of Section Getting Information

The following calls provide information to programs.

Extract_* Calls

The Extract_* calls, listed in Table 2-2, “Extract_* Calls and Actions,”

retrieve information about the characteristics of a speciﬁed conversation.

Table 2-2 Extract_* Calls and Actions

Call Retrieves

Extract_Conversation_Security_Type

(xcecst)(not available in Java CPI-C)

Security type

Extract_Conversation_State (cmecs) Conversation state

Extract_Conversation_Type (cmect) Conversation type

For Unix

Extract_Conversation_Context (cmectx) Conversation context

Extract_Max_Buffer_Size (cmembs) Maximum size of data buffer used for

Send_Data and Receive calls

Extract_Security_User_ID (cmesui) Security user ID

For Windows

Extract_Conversation_Security_User_ID

(cmecsu)

Security user ID

End of Section