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#ifndef CYGONCE_KERNEL_KTYPES_H #define CYGONCE_KERNEL_KTYPES_H //========================================================================== // // ktypes.h // // Standard types used in the kernel and its interfaces // //========================================================================== // ####ECOSGPLCOPYRIGHTBEGIN#### // ------------------------------------------- // This file is part of eCos, the Embedded Configurable Operating System. // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. // // eCos is free software; you can redistribute it and/or modify it under // the terms of the GNU General Public License as published by the Free // Software Foundation; either version 2 or (at your option) any later // version. // // eCos is distributed in the hope that it will be useful, but WITHOUT // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License // for more details. // // You should have received a copy of the GNU General Public License // along with eCos; if not, write to the Free Software Foundation, Inc., // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. // // As a special exception, if other files instantiate templates or use // macros or inline functions from this file, or you compile this file // and link it with other works to produce a work based on this file, // this file does not by itself cause the resulting work to be covered by // the GNU General Public License. However the source code for this file // must still be made available in accordance with section (3) of the GNU // General Public License v2. // // This exception does not invalidate any other reasons why a work based // on this file might be covered by the GNU General Public License. // ------------------------------------------- // ####ECOSGPLCOPYRIGHTEND#### //========================================================================== //#####DESCRIPTIONBEGIN#### // // Author(s): nickg from an original by hmt // Contributors: nickg // Date: 1997-09-08 // Purpose: Define kernel specific types // Description: Kernel specific types // Usage: #include <cyg/kernel/ktypes.h> // ... // cyg_priority priority; // etc // //####DESCRIPTIONEND#### // //========================================================================== // ------------------------------------------------------------------------- // Check that a configuration file is present. #ifndef CYGONCE_PKGCONF_KERNEL_H #error "No Configuration file included" #endif // ------------------------------------------------------------------------- #include <cyg/infra/cyg_type.h> #include <stddef.h> // for size_t // ------------------------------------------------------------------------- // Integer types: typedef cyg_int32 cyg_code; // General return/error/status code typedef cyg_count32 cyg_priority; // priority value typedef cyg_uint32 cyg_vector; // vector number/descriptor typedef cyg_uint64 cyg_tick_count; // clock tick count value // ------------------------------------------------------------------------- // Predefinitions of various kernel classes #ifdef __cplusplus class Cyg_Scheduler; class Cyg_Scheduler_Implementation; class Cyg_HardwareThread; class Cyg_SchedThread; class Cyg_SchedThread_Implementation; class Cyg_Thread; class Cyg_ThreadQueue; class Cyg_ThreadQueue_Implementation; #endif // ------------------------------------------------------------------------- // Class and structure conversion macros. // CYG_CLASSFROMFIELD translates a pointer to a field of a struct or // class into a pointer to the class. // CYG_OFFSETOFBASE yields the offset of a base class of a derived // class. // CYG_CLASSFROMBASE translates a pointer to a base class into a pointer // to a selected derived class. The base class object _must_ be part of // the specified derived class. This is essentially a poor mans version // of the RTTI dynamic_cast operator. // Caveat: These macros do not work for virtual base classes. #define CYG_CLASSFROMFIELD(_type_,_member_,_ptr_)\ ((_type_ *)((char *)(_ptr_)-((char *)&(((_type_ *)0)->_member_)))) #ifdef __cplusplus #define CYG_OFFSETOFBASE(_type_,_base_)\ ((char *)((_base_ *)((_type_ *)4)) - (char *)4) # define CYG_CLASSFROMBASE(_class_,_base_,_ptr_)\ ((_class_ *)((char *)(_ptr_) - CYG_OFFSETOFBASE(_class_,_base_))) #endif // ------------------------------------------------------------------------- #endif // CYGONCE_KERNEL_KTYPES_H // EOF ktypes.h