uper_decoder.h

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/*-
 * Copyright (c) 2005-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
 * Redistribution and modifications are permitted subject to BSD license.
 */
#ifndef _UPER_DECODER_H_
#define _UPER_DECODER_H_
 
#include <etsi_its_cpm_ts_coding/asn_application.h>
#include <etsi_its_cpm_ts_coding/uper_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 (08/2015) #11.1.
 * On success, this call always returns (.consumed >= 1), as per #11.1.3.
 */
asn_dec_rval_t uper_decode_complete(
    const struct asn_codec_ctx_s *opt_codec_ctx,
    const 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(
    const struct asn_codec_ctx_s *opt_codec_ctx,
    const 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 the input data buffer, in bytes */
    int skip_bits,      /* Number of unused leading bits, 0..7 */
    int unused_bits     /* Number of unused tailing bits, 0..7 */
);
 
#ifdef __cplusplus
}
#endif
 
#endif  /* _UPER_DECODER_H_ */