sc_hashing.h

// Copyright (c) Stefano Cristiano
// SPDX-License-Identifier: MIT
#if !defined(SANE_CPP_LIBRARIES_HASHING)
#define SANE_CPP_LIBRARIES_HASHING 1
#include <stdbool.h> // bool
#include <stddef.h>  // size_t
#include <stdint.h>  // uint64_t
 
 
 
 
 
#if _MSC_VER
#define SANE_CPP_NO_DISCARD
#else
#define SANE_CPP_NO_DISCARD __attribute__((warn_unused_result))
#endif
// clang-format off
#ifdef __cplusplus
extern "C"
{
#endif
 
typedef enum
{
    SC_HASHING_TYPE_MD5,    
    SC_HASHING_TYPE_SHA1,   
    SC_HASHING_TYPE_SHA256  
} sc_hashing_type;
 
typedef struct
{
    uint64_t opaque[14];
} sc_hashing_t;
 
typedef struct
{
    uint8_t hash[32];   
    size_t  size;       
} sc_hashing_result_t;
 
typedef struct
{
    const void* data;   
    size_t      length; 
} sc_hashing_span_t;
 
SANE_CPP_NO_DISCARD bool sc_hashing_init(sc_hashing_t* hashing, sc_hashing_type type);
 
void sc_hashing_close(sc_hashing_t* hashing);
 
SANE_CPP_NO_DISCARD bool sc_hashing_add(sc_hashing_t* hashing, sc_hashing_span_t span);
 
SANE_CPP_NO_DISCARD bool sc_hashing_get(sc_hashing_t* hashing, sc_hashing_result_t* result);
 
#ifdef __cplusplus
} // extern "C"
#endif
// clang-format on
 
#undef SANE_CPP_NO_DISCARD
 
#endif // SANE_CPP_LIBRARIES_HASHING