#10818: EclLib should allow signals to make LISP code interruptable
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   Reporter:  nbruin                      |       Owner:  was                   
   
       Type:  defect                      |      Status:  needs_review          
   
   Priority:  major                       |   Milestone:  sage-4.7              
   
  Component:  interfaces                  |    Keywords:  lisp ecl signal 
interrupt
     Author:  Nils Bruin, Jeroen Demeyer  |    Upstream:  N/A                   
   
   Reviewer:  Jean-Pierre Flori           |      Merged:                        
   
Work_issues:                              |  
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Changes (by jdemeyer):

  * status:  needs_work => needs_review
  * reviewer:  => Jean-Pierre Flori


Comment:

 Replying to [comment:20 jpflori]:
 > For example adding an infinite loop between ecl_sig_on and ecl_sig_off:
 >
 > {{{
 >     global safe_funcall_clobj
 >     cl_eval(string_to_object("(setf i 0)"))
 >     cl_eval(string_to_object("(defun infinite() (loop (incf i)))"))
 >     inf_loop=cl_eval(string_to_object("(symbol-function 'infinite)"))
 >     signal_raise(SIGINT)
 >     ecl_sig_on() # KeyboardInterrupt should be raised because
 ecl_sig_on() calls sig_on() first
 >     cl_funcall(1,inf_loop)
 >     ecl_sig_off()
 > }}}

 I decided not to do this, in order to keep the code simple and make it
 more clear what is happening.  I ''did'' add more explanation to the test
 though, I hope this helps also.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10818#comment:21>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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