mirror of
https://github.com/Unidata/netcdf-c.git
synced 2024-12-21 08:39:46 +08:00
49 lines
1.7 KiB
C
49 lines
1.7 KiB
C
/* Copyright 2009, UCAR/Unidata and OPeNDAP, Inc.
|
|
See the COPYRIGHT file for more information. */
|
|
|
|
#ifndef OCDATA_H
|
|
#define OCDATA_H
|
|
|
|
/*
|
|
This structure is used to set up
|
|
pointers into the DataDDS data packet
|
|
to speed up access.
|
|
This has some similarities to OCNODE.
|
|
*/
|
|
|
|
struct OCdata {
|
|
OCheader header;
|
|
OCDT datamode;
|
|
OCnode* pattern;
|
|
OCdata* container; /* link back to container instance */
|
|
size_t index; /* WRT to the container */
|
|
off_t xdroffset; /* Of this instance wrt xxdr_getpos() */
|
|
off_t xdrsize; /* for leafs, and as defined by xdr; if known else 0*/
|
|
size_t ninstances;/* |instances| */
|
|
OCdata** instances; /* vector of instances; if rank > 0, then
|
|
it captures the array elements, else
|
|
it captures the field instances. */
|
|
size_t nstrings;
|
|
off_t* strings;
|
|
};
|
|
|
|
|
|
extern void ocdata_free(OCstate*, OCdata*);
|
|
|
|
extern OCerror ocdata_ithfield(OCstate*, OCdata* container, size_t index, OCdata** fieldp);
|
|
extern OCerror ocdata_container(OCstate*, OCdata* data, OCdata** containerp);
|
|
extern OCerror ocdata_root(OCstate*, OCdata* data, OCdata** rootp);
|
|
|
|
extern OCerror ocdata_ithelement(OCstate*, OCdata* data, size_t* indices, OCdata** elementp);
|
|
extern OCerror ocdata_ithrecord(OCstate*, OCdata* data, size_t index, OCdata** recordp);
|
|
|
|
extern OCerror ocdata_position(OCstate*, OCdata* data, size_t* indices);
|
|
extern OCerror ocdata_recordcount(OCstate*, OCdata*, size_t*);
|
|
|
|
extern OCerror ocdata_getroot(OCstate*, OCnode*, OCdata**);
|
|
|
|
/* Atomic leaf reading */
|
|
extern OCerror ocdata_read(OCstate*,OCdata*,size_t,size_t,void*,size_t);
|
|
|
|
#endif /*OCDATA_H*/
|