xref: /freebsd-src/contrib/libcbor/src/cbor/callbacks.h (revision 5d3e7166f6a0187fa3f8831b16a06bd9955c21ff)

/*
 * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
 *
 * libcbor is free software; you can redistribute it and/or modify
 * it under the terms of the MIT license. See LICENSE for details.
 */

#ifndef LIBCBOR_CALLBACKS_H
#define LIBCBOR_CALLBACKS_H

#include <stdint.h>

#include "cbor/cbor_export.h"
#include "cbor/common.h"

#ifdef __cplusplus
extern "C" {
#endif

/** Callback prototype */
typedef void (*cbor_int8_callback)(void *, uint8_t);

/** Callback prototype */
typedef void (*cbor_int16_callback)(void *, uint16_t);

/** Callback prototype */
typedef void (*cbor_int32_callback)(void *, uint32_t);

/** Callback prototype */
typedef void (*cbor_int64_callback)(void *, uint64_t);

/** Callback prototype */
typedef void (*cbor_simple_callback)(void *);

/** Callback prototype */
typedef void (*cbor_string_callback)(void *, cbor_data, uint64_t);

/** Callback prototype */
typedef void (*cbor_collection_callback)(void *, uint64_t);

/** Callback prototype */
typedef void (*cbor_float_callback)(void *, float);

/** Callback prototype */
typedef void (*cbor_double_callback)(void *, double);

/** Callback prototype */
typedef void (*cbor_bool_callback)(void *, bool);

/** Callback bundle -- passed to the decoder */
struct cbor_callbacks {
  /** Unsigned int */
  cbor_int8_callback uint8;
  /** Unsigned int */
  cbor_int16_callback uint16;
  /** Unsigned int */
  cbor_int32_callback uint32;
  /** Unsigned int */
  cbor_int64_callback uint64;

  /** Negative int */
  cbor_int64_callback negint64;
  /** Negative int */
  cbor_int32_callback negint32;
  /** Negative int */
  cbor_int16_callback negint16;
  /** Negative int */
  cbor_int8_callback negint8;

  /** Definite byte string */
  cbor_simple_callback byte_string_start;
  /** Indefinite byte string start */
  cbor_string_callback byte_string;

  /** Definite string */
  cbor_string_callback string;
  /** Indefinite string start */
  cbor_simple_callback string_start;

  /** Definite array */
  cbor_simple_callback indef_array_start;
  /** Indefinite array */
  cbor_collection_callback array_start;

  /** Definite map */
  cbor_simple_callback indef_map_start;
  /** Indefinite map */
  cbor_collection_callback map_start;

  /** Tags */
  cbor_int64_callback tag;

  /** Half float */
  cbor_float_callback float2;
  /** Single float */
  cbor_float_callback float4;
  /** Double float */
  cbor_double_callback float8;
  /** Undef */
  cbor_simple_callback undefined;
  /** Null */
  cbor_simple_callback null;
  /** Bool */
  cbor_bool_callback boolean;

  /** Indefinite item break */
  cbor_simple_callback indef_break;
};

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_uint8_callback(void *, uint8_t);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_uint16_callback(void *, uint16_t);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_uint32_callback(void *, uint32_t);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_uint64_callback(void *, uint64_t);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_negint8_callback(void *, uint8_t);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_negint16_callback(void *, uint16_t);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_negint32_callback(void *, uint32_t);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_negint64_callback(void *, uint64_t);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_string_callback(void *, cbor_data, uint64_t);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_string_start_callback(void *);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_byte_string_callback(void *, cbor_data, uint64_t);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_byte_string_start_callback(void *);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_array_start_callback(void *, uint64_t);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_indef_array_start_callback(void *);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_map_start_callback(void *, uint64_t);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_indef_map_start_callback(void *);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_tag_callback(void *, uint64_t);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_float2_callback(void *, float);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_float4_callback(void *, float);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_float8_callback(void *, double);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_null_callback(void *);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_undefined_callback(void *);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_boolean_callback(void *, bool);

/** Dummy callback implementation - does nothing */
CBOR_EXPORT void cbor_null_indef_break_callback(void *);

/** Dummy callback bundle - does nothing */
CBOR_EXPORT extern const struct cbor_callbacks cbor_empty_callbacks;

#ifdef __cplusplus
}
#endif

#endif  // LIBCBOR_CALLBACKS_H