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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [kernel/] [v2_0/] [include/] [except.hxx] - Blame information for rev 332

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#ifndef CYGONCE_KERNEL_EXCEPT_HXX
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#define CYGONCE_KERNEL_EXCEPT_HXX
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//==========================================================================
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//
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//      except.hxx
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//
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//      Exception handling declarations
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//
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//==========================================================================
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//####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with eCos; if not, write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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//
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// As a special exception, if other files instantiate templates or use macros
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// or inline functions from this file, or you compile this file and link it
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// with other works to produce a work based on this file, this file does not
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// by itself cause the resulting work to be covered by the GNU General Public
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// License. However the source code for this file must still be made available
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// in accordance with section (3) of the GNU General Public License.
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//
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// This exception does not invalidate any other reasons why a work based on
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// this file might be covered by the GNU General Public License.
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//
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// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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// at http://sources.redhat.com/ecos/ecos-license/
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// -------------------------------------------
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//####ECOSGPLCOPYRIGHTEND####
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s):    nickg
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// Contributors: nickg, jlarmour
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// Date:         1999-02-16
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// Purpose:      Define exception interfaces
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// Description:  The classes defined here collectively implement the
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//               internal API used to register, manage and deliver
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//               exceptions.
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// Usage:        #include 
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//
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//####DESCRIPTIONEND####
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//
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//==========================================================================
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#include 
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#include           // assertion macros
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#include            // exception defines
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// -------------------------------------------------------------------------
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// Exception handler function prototype
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typedef void cyg_exception_handler(
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    CYG_ADDRWORD        data,                   // user supplied data
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    cyg_code            exception_number,       // exception being raised
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    CYG_ADDRWORD        exception_info          // any exception specific info
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    );
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// -------------------------------------------------------------------------
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// Exception delivery interface. This function is exported to the HAL which
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// invokes it for all exceptions that it is not able to handle itself.
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externC void cyg_hal_deliver_exception( CYG_WORD code, CYG_ADDRWORD data );
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// -------------------------------------------------------------------------
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// Exception control class. Depending on the configuration there is either
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// one of these per thread, or one for the entire system.
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#ifdef CYGPKG_KERNEL_EXCEPTIONS
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class Cyg_Exception_Control
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{
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#ifdef CYGSEM_KERNEL_EXCEPTIONS_DECODE
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    cyg_exception_handler   *exception_handler[CYGNUM_HAL_EXCEPTION_COUNT];
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    CYG_ADDRWORD            exception_data[CYGNUM_HAL_EXCEPTION_COUNT];
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#else
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    cyg_exception_handler   *exception_handler; // Handler function
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    CYG_ADDRWORD            exception_data;     // Handler data
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#endif
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public:
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    Cyg_Exception_Control();
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    // Register an exception handler for either the specific exception
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    // or for all exceptions.
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    void register_exception(
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        cyg_code                exception_number,       // exception number
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        cyg_exception_handler   handler,                // handler function
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        CYG_ADDRWORD            data,                   // data argument
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        cyg_exception_handler   **old_handler,          // handler function
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        CYG_ADDRWORD            *old_data               // data argument
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        );
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    // Remove an exception handler.
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    void deregister_exception(
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        cyg_code                exception_number        // exception number
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        );
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    // Deliver the given exception now by invoking the appropriate
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    // exception handler.
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    void deliver_exception(
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        cyg_code            exception_number,       // exception being raised
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        CYG_ADDRWORD        exception_info          // exception specific info
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        );
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};
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#endif
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// -------------------------------------------------------------------------
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#endif // ifndef CYGONCE_KERNEL_EXCEPT_HXX
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// EOF except.hxx

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