channel.h

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/* -*- mode: c; c-basic-offset: 4; -*- */
#ifndef CHANNEL_H
#define CHANNEL_H

#include <stddef.h>
#include <sys/types.h>

#ifndef DLL_EXPORT
#if WIN32 || WIN64
#define DLL_EXPORT __declspec( dllexport )
#else
#define DLL_EXPORT
#endif /* WIN32 || WIN64 */
#endif /* DLL_EXPORT */

typedef enum chantype {

    cUnknown,

    cOnline,

    cRaw,

    cRDS,

    cSTrend,

    cMTrend,

    cTestPoint,

    cStatic,

    cSimData

} chantype_t;

#define MAX_LONG_CHANNEL_NAME_LENGTH 255

#define MAX_CHANNEL_NAME_LENGTH 64

#define MAX_SIGNAL_UNIT_LENGTH 40

typedef enum {
    _undefined = 0,

    _16bit_integer = 1,

    _32bit_integer = 2,

    _64bit_integer = 3,

    _32bit_float = 4,

    _64bit_double = 5,

    _32bit_complex = 6,

    _32bit_uint = 7
} daq_data_t;

#define MIN_DATA_TYPE _16bit_integer

#define MAX_DATA_TYPE _32bit_uint

DLL_EXPORT chantype_t cvt_str_chantype( const char* str );

DLL_EXPORT const char* cvt_chantype_str( chantype_t code );

DLL_EXPORT size_t data_type_size( daq_data_t dtype );

DLL_EXPORT double data_type_max( daq_data_t dtype );

DLL_EXPORT const char* data_type_name( daq_data_t dtype );

DLL_EXPORT daq_data_t data_type_code( const char* name );

DLL_EXPORT size_t data_type_word( daq_data_t dtype );

#endif