mirror of
https://github.com/Unidata/netcdf-c.git
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58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
/* Copyright 2018, UCAR/Unidata and OPeNDAP, Inc.
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See the COPYRIGHT file for more information. */
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#ifndef BYTEBUFFER_H
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#define BYTEBUFFER_H 1
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typedef struct Bytebuffer {
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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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} Bytebuffer;
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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 Bytebuffer* bbNew(void);
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EXTERNC void bbFree(Bytebuffer*);
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EXTERNC int bbSetalloc(Bytebuffer*,const unsigned int);
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EXTERNC int bbSetlength(Bytebuffer*,const unsigned int);
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EXTERNC int bbFill(Bytebuffer*, const char fill);
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/* Produce a duplicate of the contents*/
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EXTERNC char* bbDup(const Bytebuffer*);
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/* Return the ith char; -1 if no such char */
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EXTERNC int bbGet(Bytebuffer*,unsigned int);
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/* Set the ith char */
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EXTERNC int bbSet(Bytebuffer*,unsigned int,char);
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EXTERNC int bbAppend(Bytebuffer*,const char); /* Add at Tail */
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EXTERNC int bbAppendn(Bytebuffer*,const void*,unsigned int); /* Add at Tail */
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/* Insert 1 or more characters at given location */
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EXTERNC int bbInsert(Bytebuffer*,const unsigned int,const char);
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EXTERNC int bbInsertn(Bytebuffer*,const unsigned int,const char*,const unsigned int);
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EXTERNC int bbCat(Bytebuffer*,const char*);
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EXTERNC int bbCatbuf(Bytebuffer*,const Bytebuffer*);
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EXTERNC int bbSetcontents(Bytebuffer*, char*, const unsigned int);
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EXTERNC int bbNull(Bytebuffer*);
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EXTERNC char* bbExtract(Bytebuffer*);
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/* Following are always "in-lined"*/
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#define bbLength(bb) ((bb)?(bb)->length:0U)
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#define bbAlloc(bb) ((bb)?(bb)->alloc:0U)
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#define bbContents(bb) ((bb && bb->content)?(bb)->content:(char*)"")
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#define bbExtend(bb,len) bbSetalloc((bb),(len)+(bb->alloc))
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#define bbClear(bb) ((void)((bb)?(bb)->length=0:0U))
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#define bbNeed(bb,n) ((bb)?((bb)->alloc - (bb)->length) > (n):0U)
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#define bbAvail(bb) ((bb)?((bb)->alloc - (bb)->length):0U)
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#endif /*BYTEBUFFER_H*/
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