Variable

Summary

Controls blocking of multiprocessing in the terminal debugger.

Package

dbg

Initial Value

t

Description

When the debugger is entered on the terminal, multiprocessing is blocked if the value of *terminal-debugger-block-multiprocessing* is t . This is the default value.

If you set this variable to nil , then other processes including timers will run in the terminal debugger. Beware that this will make it more difficult to debug multiprocess activities.

The other allowed value is :maybe . This means that multiprocessing is blocked in the terminal debugger unless the debugger was entered from the CAPI environment.

Example

CL-USER 1 > dbg:*terminal-debugger-block-multiprocessing*

T

CL-USER 2 > unbound

Error: The variable UNBOUND is unbound.

  1 (continue) Try evaluating UNBOUND again.

  2 Specify a value to use this time instead of evaluating UNBOUND.

  3 Specify a value to set UNBOUND to.

  4 (abort) Return to level 0.

  5 Return to top-level loop.

  6 Return from multiprocessing.

Type :b for backtrace, :c <option number> to proceed,  or :? for other options

CL-USER 3 : 1 > (setq *timer* (mp:make-timer 'print 10))

Warning: Setting unbound variable *TIMER*

#<Time Event : PRINT>

CL-USER 4 : 1 > (mp:schedule-timer-relative *timer* 1)

#<Time Event : PRINT>

CL-USER 5 : 1 > :a

CL-USER 6 > 

10  ;; <- printed after aborting from debugger

(setf dbg:*terminal-debugger-block-multiprocessing* nil) 

 NIL

CL-USER 7 > unbound

Error: The variable UNBOUND is unbound.

  1 (continue) Try evaluating UNBOUND again.

  2 Specify a value to use this time instead of evaluating UNBOUND.

  3 Specify a value to set UNBOUND to.

  4 (abort) Return to level 0.

  5 Return to top-level loop.

  6 Return from multiprocessing.

Type :b for backtrace, :c <option number> to proceed,  or :? for other options

CL-USER 8 : 1 > (setq *timer* (mp:make-timer 'print 10))

#<Time Event : PRINT>

CL-USER 9 : 1 > (mp:schedule-timer-relative *timer* 1)

#<Time Event : PRINT>

CL-USER 10 : 1 > 

10 ;; <- printed after 1 second, in the debugger