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/*********************************************************************
* Copyright 2018, UCAR/Unidata
* See netcdf/COPYRIGHT file for copying and redistribution conditions.
*********************************************************************/
#ifndef D4UTIL_H
#define D4UTIL_H 1
#ifdef HAVE_MEMMOVE
#define d4memmove(dst,src,n) memmove(dst,src,n)
#else
#define d4memmove(dst,src,n) localmemmove(dst,src,n)
#endif
/* This is intended to be big enough to work as
an offset/position/size for a file or a memory block.
*/
typedef unsigned long long d4size_t;
/* Define a (size, memory) pair */
typedef struct D4blob {d4size_t size; void* memory;} D4blob;
/* Empty blob constant */
#define NULLBLOB(blob) {blob.size = 0; blob.memory = NULL;}
#define OFFSET2BLOB(blob,offset) do{(blob).size = (d4size_t)((offset)->limit - (offset)->base); (blob).memory = (offset)->base; }while(0)
#define BLOB2OFFSET(offset,blob) do{\
(offset)->base = (blob).memory; \
(offset)->limit = ((char*)(blob).memory) + (blob).size; \
(offset)->offset = (offset)->base; \
} while(0)
/**************************************************/
/* signature: void swapinline16(void* ip) */
#define swapinline16(ip) \
{ \
char b[2]; \
char* src = (char*)(ip); \
b[0] = src[1]; \
b[1] = src[0]; \
memcpy(ip, b, 2); \
}
/* signature: void swapinline32(void* ip) */
#define swapinline32(ip) \
{ \
char b[4]; \
char* src = (char*)(ip); \
b[0] = src[3]; \
b[1] = src[2]; \
b[2] = src[1]; \
b[3] = src[0]; \
memcpy(ip, b, 4); \
}
/* signature: void swapinline64(void* ip) */
#define swapinline64(ip) \
{ \
char b[8]; \
char* src = (char*)(ip); \
b[0] = src[7]; \
b[1] = src[6]; \
b[2] = src[5]; \
b[3] = src[4]; \
b[4] = src[3]; \
b[5] = src[2]; \
b[6] = src[1]; \
b[7] = src[0]; \
memcpy(ip, b, 8); \
}
/***************************************************/
/* Define the NCD4node.data.flags */
#define HASNIL (0) /* no flags set */
#define HASSEQ (1) /* transitively contains sequence(s)*/
#define HASSTR (2) /* transitively contains strings */
#define HASOPFIX (4) /* transitively contains fixed size opaques */
#define HASOPVAR (8) /* transitively contains variable size opaques */
#define LEAFSEQ (16) /* mark leaf sequences */
#define HASANY (HASNIL|HASSEQ|HASSTR|HASOPTFIX|HASOPVAR)
/***************************************************/
extern int ncd4__testurl(const char* parth, char** basename);
#endif /*D4UTIL_H*/
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