types_c.h

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/**************************************************************
 **
 ** @file base/types_c.h
 **
 ** Copyright (C) 2012  Xpace, LLC.  All rights reserved
 **
 ** www.xpace.net
 **
 **************************************************************/

#ifndef XPACE_TYPES_C_H
#define XPACE_TYPES_C_H

#ifdef __cplusplus
# define EXTERNC extern "C"
#else
# define EXTERNC
#endif

#if defined _WIN32
# define STDCALL __stdcall
#else
# define STDCALL
#endif

/// import/export attribute, used only for Windows DLLs
#if !defined _WIN32 || defined XPACE_STATICLIB
#  define XPACE_C_EXPORT(ret) EXTERNC ret
#elif !defined XPACE_EXPORT
#  define XPACE_C_EXPORT(ret) EXTERNC __declspec(dllimport) ret __stdcall
#else
#   define XPACE_C_EXPORT(ret) EXTERNC __declspec(dllexport) ret __stdcall
#endif

#define XPACE_C_CALLBACK(ret, name) EXTERNC typedef ret (STDCALL *name)

/// @name unsigned types
//@{
typedef unsigned char byte;
typedef unsigned int uint;
//@}

/// @name explicity-sized types
//@{
typedef char int8;
typedef unsigned char uint8;
typedef short int16;
typedef unsigned short uint16;
typedef int int32;
typedef unsigned int uint32;
typedef long long int64;
typedef unsigned long long uint64;
//@}

typedef uint8 Xpace_Char8;
typedef uint16 Xpace_Char16;

///@name free a string 
XPACE_C_EXPORT(void) Xpace_String_destroy
  (Xpace_Char16* str);

#ifndef __cplusplus
#include <stdlib.h>
typedef int bool;
#endif

enum Xpace_Data_Type
{
  Xpace_Data_Type_none,  
  Xpace_Data_Type_int,
  Xpace_Data_Type_float,
  Xpace_Data_Type_string8,
  Xpace_Data_Type_string16,
  Xpace_Data_Type_binary,
  Xpace_Data_Type_dateTime,
  Xpace_Data_Type_IPv4
};

/// A low-level data holder 
typedef struct XPACE_EXPORT 
{
  const byte* data;     ///< first byte
  size_t length;        ///< number of bytes
}
Xpace_Bytes;

/// A float with a explicit mantissa and exponent
typedef struct XPACE_EXPORT
{
  int64 mantissa;       ///< mantissa
  int   decimals;       ///< decimals
}
Xpace_DecimalFloat;

/// A date and a time
typedef struct XPACE_EXPORT
{
  int year;
  uint month;
  uint day;
  uint hour;
  uint minute;
  uint second;
  uint millisecond;
}
Xpace_DateTime;

/// convert a DecimalFloat to a double
XPACE_C_EXPORT(double) Xpace_DecimalFloat_to_Double
  (const Xpace_DecimalFloat*);

#endif