netcdf-c/libdap2/getvara.h

/*********************************************************************
 *   Copyright 2018, UCAR/Unidata
 *   See netcdf/COPYRIGHT file for copying and redistribution conditions.
 *********************************************************************/
#ifndef GETVARA_H
#define GETVARA_H

/*
Define the overall maximum cache size
and the per-retrieval maximum size
*/

/* Use slightly misspelled names to avoid conflicts */
#define KILOBYTE 0x400
#define MEGBYTE 0x100000
#define GIGBYTE 0x40000000

/* The cache limit is in terms of bytes */
#define DFALTCACHELIMIT (100*MEGBYTE)
/* The fetch limit is in terms of bytes */
#define DFALTFETCHLIMIT (100*KILOBYTE)

/* WARNING: The small limit is in terms of the # of vector elements */
#define DFALTSMALLLIMIT (4096)

/* Max number of cache nodes */
#define DFALTCACHECOUNT (100)

typedef struct Getvara {
    void* memory; /* where result is put*/
    struct NCcachenode* cache;
    struct DCEprojection* varaprojection;
    /* associated nc variable*/
    nc_type dsttype;
    CDFnode* target;
    int wholevariable;
} Getvara;

#endif /*GETVARA_H*/
2011-04-18 02:56:10 +08:00			`/*********************************************************************`
Updated COPYRIGHT stanza in libdap2 2018-12-07 05:21:03 +08:00			`* Copyright 2018, UCAR/Unidata`
2011-04-18 02:56:10 +08:00			`* See netcdf/COPYRIGHT file for copying and redistribution conditions.`
			`*********************************************************************/`
			`#ifndef GETVARA_H`
			`#define GETVARA_H`

			`/*`
			`Define the overall maximum cache size`
			`and the per-retrieval maximum size`
			`*/`

			`/* Use slightly misspelled names to avoid conflicts */`
Primary change is to add ability to do prefetch on either a lazy or eager basis. Lazy means that the prefetch does not occur until and unless the client actually makes a get_var request. Also repaired a problem where doing prefetch wrt a url that has a constraint will prefetch a whole variable if its constrained size is small enough, even if the underlying variable is too large to warrant prefetch. 2013-03-03 12:06:43 +08:00			`#define KILOBYTE 0x400`
2011-04-18 02:56:10 +08:00			`#define MEGBYTE 0x100000`
			`#define GIGBYTE 0x40000000`

			`/* The cache limit is in terms of bytes */`
			`#define DFALTCACHELIMIT (100*MEGBYTE)`
			`/* The fetch limit is in terms of bytes */`
Primary change is to add ability to do prefetch on either a lazy or eager basis. Lazy means that the prefetch does not occur until and unless the client actually makes a get_var request. Also repaired a problem where doing prefetch wrt a url that has a constraint will prefetch a whole variable if its constrained size is small enough, even if the underlying variable is too large to warrant prefetch. 2013-03-03 12:06:43 +08:00			`#define DFALTFETCHLIMIT (100*KILOBYTE)`
2011-04-18 02:56:10 +08:00
			`/* WARNING: The small limit is in terms of the # of vector elements */`
Primary change is to add ability to do prefetch on either a lazy or eager basis. Lazy means that the prefetch does not occur until and unless the client actually makes a get_var request. Also repaired a problem where doing prefetch wrt a url that has a constraint will prefetch a whole variable if its constrained size is small enough, even if the underlying variable is too large to warrant prefetch. 2013-03-03 12:06:43 +08:00			`#define DFALTSMALLLIMIT (4096)`
2011-04-18 02:56:10 +08:00
			`/* Max number of cache nodes */`
			`#define DFALTCACHECOUNT (100)`

			`typedef struct Getvara {`
			`void* memory; /* where result is put*/`
			`struct NCcachenode* cache;`
			`struct DCEprojection* varaprojection;`
Fix jira NCF-249 2013-04-24 04:18:16 +08:00			`/* associated nc variable*/`
			`nc_type dsttype;`
2011-04-18 02:56:10 +08:00			`CDFnode* target;`
completely rewritten constraint system 2011-11-14 12:20:19 +08:00			`int wholevariable;`
2011-04-18 02:56:10 +08:00			`} Getvara;`

			`#endif /GETVARA_H/`