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https://github.com/Unidata/netcdf-c.git
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59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/* Copyright 2009, UCAR/Unidata and OPeNDAP, Inc.
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See the COPYRIGHT file for more information. */
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#ifndef NCBYTES_H
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#define NCBYTES_H 1
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typedef struct NCbytes {
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int nonextendible; /* 1 => fail if an attempt is made to extend this buffer*/
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unsigned int alloc;
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unsigned int length;
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char* content;
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} NCbytes;
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#if defined(_CPLUSPLUS_) || defined(__CPLUSPLUS__) || defined(__CPLUSPLUS)
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#define EXTERNC extern "C"
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#else
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#define EXTERNC extern
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#endif
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EXTERNC NCbytes* ncbytesnew(void);
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EXTERNC void ncbytesfree(NCbytes*);
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EXTERNC int ncbytessetalloc(NCbytes*,unsigned int);
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EXTERNC int ncbytessetlength(NCbytes*,unsigned int);
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EXTERNC int ncbytesfill(NCbytes*, char fill);
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/* Produce a duplicate of the contents*/
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EXTERNC char* ncbytesdup(NCbytes*);
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/* Extract the contents and leave buffer empty */
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EXTERNC char* ncbytesextract(NCbytes*);
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/* Return the ith byte; -1 if no such index */
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EXTERNC int ncbytesget(NCbytes*,unsigned int);
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/* Set the ith byte */
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EXTERNC int ncbytesset(NCbytes*,unsigned int,char);
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/* Append one byte */
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EXTERNC int ncbytesappend(NCbytes*,char); /* Add at Tail */
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/* Append n bytes */
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EXTERNC int ncbytesappendn(NCbytes*,void*,unsigned int); /* Add at Tail */
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/* Null terminate the byte string without extending its length (for debugging) */
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EXTERNC int ncbytesnull(NCbytes*);
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/* Concatenate a null-terminated string to the end of the buffer */
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EXTERNC int ncbytescat(NCbytes*,char*);
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/* Set the contents of the buffer; mark the buffer as non-extendible */
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EXTERNC int ncbytessetcontents(NCbytes*, char*, unsigned int);
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/* Following are always "in-lined"*/
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#define ncbyteslength(bb) ((bb)?(bb)->length:0U)
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#define ncbytesalloc(bb) ((bb)?(bb)->alloc:0U)
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#define ncbytescontents(bb) ((bb && bb->content)?(bb)->content:(char*)"")
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#define ncbytesextend(bb,len) ncbytessetalloc((bb),(len)+(bb->alloc))
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#define ncbytesclear(bb) ((bb)?(bb)->length=0:0U)
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#define ncbytesavail(bb,n) ((bb)?((bb)->alloc - (bb)->length) >= (n):0U)
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#endif /*NCBYTES_H*/
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