z/OS TSO/E Customization
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Overview of when the CONSOLE exits receive control

z/OS TSO/E Customization
SA32-0976-00

The CONSOLE exits receive control when a user issues the CONSOLE command or responds to a CONSOLE prompt, or when a message table reaches 80% or 100% capacity.
  • The pre-parse exit receives control before CONSOLE invokes the parse service to parse the command. It is also invoked when the user responds to a console prompt with input. The exit can be invoked several times on each invocation of the CONSOLE command (if the CONSOLE command enters conversational mode). The exit is invoked synchronously in the TSO/E user's address space (for example, as a result of a user entering the CONSOLE command or a subcommand to the CONSOLE command).
  • The activation exit receives control just before the console session is activated through MVS™ console services. It is invoked on the first invocation of the CONSOLE command when a console session is not active.
  • The deactivation exit receives control just after console deactivation occurs. It cleans up the communication area established by the CONSOLE activation exit. If the X'80000000' bit of the flags field is on, this exit is invoked asynchronously in the TSO/E user's address space.
  • The 80% message capacity exit receives control at the first point in which the message tables reach 80% capacity. Eighty percent capacity is defined as 80% of the maximum table size defined in the user's console profile. The exit will not be invoked again for this type of message table until the situation has been resolved and has occurred again. The situation is considered to be resolved when the table decreases to 70% capacity or the resume percentage is updated by the exit. This exit is invoked asynchronously in the TSO/E user's address space.
  • The 100% message capacity exit receives control at the first point in which the message tables reach 100% capacity. One hundred percent capacity is defined as 100% of the maximum table size defined in the user's console profile. The exit will not be invoked again for this type of message table until the situation has been resolved and has occurred again. The situation is considered to be resolved when the table decreases to 90% capacity or the resume percentage is updated by the exit. This exit is invoked asynchronously in the TSO/E user's address space.

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