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This chapter contains information about the following topics and will help you write transaction programs (TPs):
Categories of APPC verbs
APPC verb summary
APPC entry points
Solaris system considerations
Windows system considerations
Configuration information
Conversation security
Starting TPs
LU-to-LU sessions
Basic conversations
Writing TP servers
Writing portable TPs
APPC verbs fall into the following categories:
Control verbs, described in APPC Control Verbs
Conversation verbs, described in APPC Conversation Verbs
Control verbs start and end TPs and obtain information about the properties of TPs:
TP_STARTED
TP_ENDED
RECEIVE_ALLOCATE
GET_TP_PROPERTIES
SET_TP_PROPERTIES
GET_LU_STATUS
Conversation verbs enable TPs to allocate a conversation, send and receive data, change conversation states, and deallocate a conversation.
The following verbs can be issued in either a basic or mapped conversation:
GET_TYPE
GET_LU_STATUS
GET_TP_PROPERTIES
SET_TP_PROPERTIES
Most conversation verbs fall into two groups:
Mapped-conversation verbs, which a TP can issue only in a mapped conversation
Basic-conversation verbs, which a TP can issue only in a basic conversation
Conversation verbs are grouped by type, mapped or basic, as shown in Mapped and Basic Conversation Verbs:
Mapped and basic verbs have the same functions in their respective types of conversation, but may have slightly different parameters and return codes.
TP server verbs allow applications to start TPs in response to requests from SNAP-IX:
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