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/*-
* Copyright (c) 2005, 2007 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _PER_DECODER_H_
#define _PER_DECODER_H_
#include <asn_application.h>
#include <per_support.h>
#ifdef __cplusplus
extern "C" {
#endif
struct asn_TYPE_descriptor_s; /* Forward declaration */
/*
* Unaligned PER decoder of a "complete encoding" as per X.691#10.1.
* On success, this call always returns (.consumed >= 1), as per X.691#10.1.3.
*/
asn_dec_rval_t uper_decode_complete(struct asn_codec_ctx_s *opt_codec_ctx,
struct asn_TYPE_descriptor_s *type_descriptor, /* Type to decode */
void **struct_ptr, /* Pointer to a target structure's pointer */
const void *buffer, /* Data to be decoded */
size_t size /* Size of data buffer */
);
/*
* Unaligned PER decoder of any ASN.1 type. May be invoked by the application.
* WARNING: This call returns the number of BITS read from the stream. Beware.
*/
asn_dec_rval_t uper_decode(struct asn_codec_ctx_s *opt_codec_ctx,
struct asn_TYPE_descriptor_s *type_descriptor, /* Type to decode */
void **struct_ptr, /* Pointer to a target structure's pointer */
const void *buffer, /* Data to be decoded */
size_t size, /* Size of data buffer */
int skip_bits, /* Number of unused leading bits, 0..7 */
int unused_bits /* Number of unused tailing bits, 0..7 */
);
/*
* Type of the type-specific PER decoder function.
*/
typedef asn_dec_rval_t (per_type_decoder_f)(asn_codec_ctx_t *opt_codec_ctx,
struct asn_TYPE_descriptor_s *type_descriptor,
asn_per_constraints_t *constraints,
void **struct_ptr,
asn_per_data_t *per_data
);
#ifdef __cplusplus
}
#endif
#endif /* _PER_DECODER_H_ */