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/*******************************************************************************
*
* HEADER: bitfields.h
*
********************************************************************************
*
* DESCRIPTION: Bitfield layouting routines
*
********************************************************************************
*
* $Project: /Convert-Binary-C $
* $Author: mhx $
* $Date: 2009/03/15 04:10:47 +0100 $
* $Revision: 12 $
* $Source: /ctlib/bitfields.h $
*
********************************************************************************
*
* Copyright (c) 2002-2009 Marcus Holland-Moritz. All rights reserved.
* This program is free software; you can redistribute it and/or modify
* it under the same terms as Perl itself.
*
*******************************************************************************/
#ifndef _CTLIB_BITFIELDS_H
#define _CTLIB_BITFIELDS_H
/*===== GLOBAL INCLUDES ======================================================*/
/*===== LOCAL INCLUDES =======================================================*/
#include "ctlib/arch.h"
#include "ctlib/cttype.h"
#include "token/t_blproperty.h"
/*===== DEFINES ==============================================================*/
#define BL_CLASS_FIXED \
const struct BLVtable *m; \
const struct BLClass *blc
/*===== TYPEDEFS =============================================================*/
struct BLClass;
enum BLError {
BLE_NO_ERROR,
BLE_INVALID_PROPERTY,
BLE_BITFIELD_TOO_WIDE
};
typedef signed long BLPropValInt;
typedef struct _BLPropValue {
enum BLPVType {
BLPVT_INT,
BLPVT_STR
} type;
union {
BLPropValInt v_int;
BLPropValStr v_str;
} v;
} BLPropValue;
typedef struct _BLOption {
BLProperty prop;
enum BLPVType type;
int nval; /* number of allowed values (0: all values allowed) */
const void *pval; /* pointer to list of allowed values */
} BLOption;
typedef struct _BLPushParam {
Struct *pStruct;
Declarator *pDecl;
unsigned type_size;
unsigned type_align;
} BLPushParam;
typedef struct _BitfieldLayouter *BitfieldLayouter;
struct BLVtable {
BitfieldLayouter (*clone) (BitfieldLayouter);
void (*init) (BitfieldLayouter);
void (*reset) (BitfieldLayouter);
void (*destroy) (BitfieldLayouter);
enum BLError (*push) (BitfieldLayouter, const BLPushParam *);
enum BLError (*finalize) (BitfieldLayouter);
enum BLError (*get) (BitfieldLayouter, BLProperty, BLPropValue *);
enum BLError (*set) (BitfieldLayouter, BLProperty, const BLPropValue *);
const BLOption * (*options) (BitfieldLayouter, int *count);
const char * (*class_name) (BitfieldLayouter);
};
struct _BitfieldLayouter {
BL_CLASS_FIXED;
};
/*===== EXTERNAL VARIABLES ===================================================*/
/*===== FUNCTION PROTOTYPES ==================================================*/
#define bl_create CTlib_bl_create
BitfieldLayouter bl_create(const char *class_name);
#define bl_property CTlib_bl_property
BLProperty bl_property(const char *property);
#define bl_property_string CTlib_bl_property_string
const char *bl_property_string(BLProperty property);
#define bl_propval CTlib_bl_propval
BLPropValStr bl_propval(const char *propval);
#define bl_propval_string CTlib_bl_propval_string
const char *bl_propval_string(BLPropValStr propval);
#endif
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