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#ifndef CYGONCE_KERNEL_KTYPES_H
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#define CYGONCE_KERNEL_KTYPES_H
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//==========================================================================
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//
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// ktypes.h
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//
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// Standard types used in the kernel and its interfaces
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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 from an original by hmt
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// Contributors: nickg
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// Date: 1997-09-08
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// Purpose: Define kernel specific types
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// Description: Kernel specific types
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// Usage: #include <cyg/kernel/ktypes.h>
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// ...
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// cyg_priority priority; // etc
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//
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//####DESCRIPTIONEND####
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//
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//==========================================================================
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// -------------------------------------------------------------------------
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// Check that a configuration file is present.
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#ifndef CYGONCE_PKGCONF_KERNEL_H
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#error "No Configuration file included"
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#endif
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// -------------------------------------------------------------------------
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#include <cyg/infra/cyg_type.h>
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#include <stddef.h> // for size_t
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// -------------------------------------------------------------------------
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// Integer types:
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typedef cyg_int32 cyg_code; // General return/error/status code
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typedef cyg_count32 cyg_priority; // priority value
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typedef cyg_uint32 cyg_vector; // vector number/descriptor
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typedef cyg_uint64 cyg_tick_count; // clock tick count value
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// -------------------------------------------------------------------------
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// Predefinitions of various kernel classes
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#ifdef __cplusplus
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class Cyg_Scheduler;
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class Cyg_Scheduler_Implementation;
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class Cyg_HardwareThread;
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class Cyg_SchedThread;
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class Cyg_SchedThread_Implementation;
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class Cyg_Thread;
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class Cyg_ThreadQueue;
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class Cyg_ThreadQueue_Implementation;
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#endif
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// -------------------------------------------------------------------------
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// Class and structure conversion macros.
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// CYG_CLASSFROMFIELD translates a pointer to a field of a struct or
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// class into a pointer to the class.
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// CYG_OFFSETOFBASE yields the offset of a base class of a derived
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// class.
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// CYG_CLASSFROMBASE translates a pointer to a base class into a pointer
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// to a selected derived class. The base class object _must_ be part of
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// the specified derived class. This is essentially a poor mans version
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// of the RTTI dynamic_cast operator.
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// Caveat: These macros do not work for virtual base classes.
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#define CYG_CLASSFROMFIELD(_type_,_member_,_ptr_)\
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((_type_ *)((char *)(_ptr_)-((char *)&(((_type_ *)0)->_member_))))
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#ifdef __cplusplus
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#define CYG_OFFSETOFBASE(_type_,_base_)\
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((char *)((_base_ *)((_type_ *)4)) - (char *)4)
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# define CYG_CLASSFROMBASE(_class_,_base_,_ptr_)\
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((_class_ *)((char *)(_ptr_) - CYG_OFFSETOFBASE(_class_,_base_)))
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#endif
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// -------------------------------------------------------------------------
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#endif // CYGONCE_KERNEL_KTYPES_H
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// EOF ktypes.h
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