------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- G N A T . C T R L _ C -- -- -- -- S p e c -- -- -- -- Copyright (C) 2002-2010, AdaCore -- -- -- -- GNAT is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- -- ware Foundation; either version 3, or (at your option) any later ver- -- -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- -- or FITNESS FOR A PARTICULAR PURPOSE. -- -- -- -- As a special exception under Section 7 of GPL version 3, you are granted -- -- additional permissions described in the GCC Runtime Library Exception, -- -- version 3.1, as published by the Free Software Foundation. -- -- -- -- You should have received a copy of the GNU General Public License and -- -- a copy of the GCC Runtime Library Exception along with this program; -- -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- -- . -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- This package may be used to intercept the interruption of a running -- program by the operator typing Control-C, without having to use an Ada -- interrupt handler protected object. -- This package is currently implemented under Windows and Unix platforms -- Note concerning Unix systems: -- The behavior of this package when using tasking depends on the interaction -- between sigaction() and the thread library. package GNAT.Ctrl_C is type Handler_Type is access procedure; -- Any parameterless library level procedure can be used as a handler. -- Handler_Type should not propagate exceptions. procedure Install_Handler (Handler : Handler_Type); -- Set up Handler to be called if the operator hits Ctrl-C, instead of the -- standard Control-C handler. procedure Uninstall_Handler; -- Reinstall the standard Control-C handler. -- If Install_Handler has never been called, this procedure has no effect. private pragma Import (C, Uninstall_Handler, "__gnat_uninstall_int_handler"); end GNAT.Ctrl_C;