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[svn-r41] Interim checkpoint of dataset code for Robb to look at.

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This commit is contained in:
Quincey Koziol 1997-08-26 12:01:18 -05:00
parent 99d621130d
commit ed257f0958
7 changed files with 896 additions and 11 deletions
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1
src/H5Apublic.h
View File

@ -31,6 +31,7 @@ typedef enum {
H5_DATATYPE, /* Group ID for Datatype objects */
H5_DATASPACE, /* Group ID for Dataspace objects */
H5_DATASET, /* Group ID for Dataset objects */
H5_DIRECTORY, /* Group ID for Directory objects */
MAXGROUP /* Highest group in group_t (Invalid as true group) */
} group_t;

65
src/H5D.c
View File

@ -142,7 +142,7 @@ done:
--------------------------------------------------------------------------*/
herr_t H5Dset_info(hatom_t oid, hatom_t tid, hatom_t did)
{
H5D_dataset_t *dataset; /* dataset object to release */
H5D_dataset_t *dataset; /* dataset object to modify */
herr_t ret_value = SUCCEED;
FUNC_ENTER(H5Dset_info, H5D_init_interface, FAIL);
@ -236,7 +236,7 @@ done:
/* Normal function cleanup */
FUNC_LEAVE(ret_value);
} /* end H5Dset_info() */
} /* end H5Dwrite() */
/*--------------------------------------------------------------------------
NAME
@ -256,9 +256,6 @@ done:
herr_t H5D_flush(hatom_t oid)
{
H5D_dataset_t *dataset; /* dataset object to release */
#ifdef QUINCEY
H5F_
#endif
herr_t ret_value = SUCCEED;
FUNC_ENTER(H5D_flush, H5D_init_interface, FAIL);
@ -275,20 +272,66 @@ herr_t H5D_flush(hatom_t oid)
/* Check if we need to create the dataset header and insert the dataset in the file's hierarchy */
if(dataset->header==0)
{
H5G_entry_t d_sym;
H5F_root_symtype_t root_type=H5F_root_type(dataset->file);
hdf5_file_t *file;
group_t dset_parent=H5Aatom_group(dataset->parent);
/* Get the dataset's file... (I'm not fond of this. -QAK) */
if((file=H5Aatom_object(dataset->file))==NULL)
HGOTO_ERROR(H5E_INTERNAL, H5E_BADATOM, FAIL);
/* Flush object header, etc. to the file... */
if(root_type==H5F_ROOT_ERROR)
HGOTO_ERROR(H5E_SYM, H5E_BADVALUE, FAIL);
if(root_type==H5F_ROOT_DATASET || H5F_ROOT_UNKNOWN)
/* construct dataset symbol-table entry */
d_sym.name_off=0;
/* allocate the dataset's object header */
if((d_sym.header=H5O_new(file, 1, 0))<0)
HRETURN_ERROR (H5E_SYM, H5E_CANTINIT, FAIL);
d_sym.type=H5G_NOTHING_CACHED;
dataset->header=d_sym.header;
/* Insert dataset into parent directory, if there is one */
if(dset_parent!=H5_FILE ||
(dset_parent==H5_FILE && root_type==H5F_ROOT_DIRECTORY))
{
uintn namelen; /* length of parent directory's name */
char *name; /* pointer to parent directory's name */
/* Get the name of the parent directory */
if((namelen=H5Mname_len(dataset->parent))==UFAIL)
HGOTO_ERROR(H5E_DIRECTORY, H5E_BADVALUE, FAIL);
if((name=HDmalloc(namelen+1))==NULL);
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL);
if(H5Mget_name(dataset->parent,name)==FAIL)
HGOTO_ERROR(H5E_DIRECTORY, H5E_NOTFOUND, FAIL);
/* Insert the dataset into the parent directory */
if(H5G_insert (file, NULL, name, dataset->name, &d_sym)==FAIL)
HGOTO_ERROR(H5E_DIRECTORY, H5E_CANTINSERT, FAIL);
HDfree(name);
} /* end if */
else
else /* insert dataset as root-object, or into root-directory */
{
#ifdef QUINCEY
if(root_type
#endif
} /* end if */
if(root_type==H5F_ROOT_DATASET || H5F_ROOT_UNKNOWN)
{
/* Make the root directory and stuff the dataset into it */
if(H5G_mkroot (file, H5G_DEFAULT_ROOT_SIZE)==FAIL)
HGOTO_ERROR(H5E_DIRECTORY, H5E_CANTCREATE, FAIL);
if(H5G_insert (file, NULL, NULL, dataset->name, &d_sym)==FAIL)
HGOTO_ERROR(H5E_DIRECTORY, H5E_CANTINSERT, FAIL);
} /* end if */
else
{
/* Set the root of the file to point to the dataset */
if(root_type==H5F_ROOT_NONE)
H5G_set_root(file, dataset->name, &d_sym);
} /* end else */
} /* end else */
/* Add the appropriate messages for the dataset */
} /* end if */
} /* end if */

47
src/H5G.c
View File

@ -557,6 +557,53 @@ H5G_insert (hdf5_file_t *f, H5G_entry_t *cwd, H5G_entry_t *dir_ent,
FUNC_LEAVE (SUCCEED);
}
/*--------------------------------------------------------------------------
NAME
H5G_set_root
PURPOSE
Inserts symbol table ENT as the file's root object giving it the specified
NAME. NAME is not allowed to be relative.
USAGE
herr_t H5G_set_root(f, name, ent)
hatom_t f; IN: File to set root entry
const char *name; IN: Root object's name
H5G_entry_t *ent; IN: Root object's symbol-table entry
RETURNS
SUCCEED/FAIL
DESCRIPTION
This function sets the root object of a file to be the symbol-table
table passed as an argument. The primary function of this routine is to
make a dataset the root object of a file. (The dataset may be replaced
with a "real" root directory, but at this point, the dataset is the only
object in the file)
--------------------------------------------------------------------------*/
herr_t
H5G_set_root (hdf5_file_t *f, const char *name, H5G_entry_t *ent)
{
herr_t status;
const char *rest=NULL;
H5G_entry_t _parent;
size_t nchars;
char _comp[1024];
FUNC_ENTER (H5G_set_root, NULL, FAIL);
/* check args */
assert (f);
assert (name && *name);
assert (ent);
/* lookup base-name */
if(HDstrlen(rest = H5G_basename (name, NULL))<=0)
HRETURN_ERROR (H5E_SYM, H5E_BADVALUE, FAIL); /* invalid base name */
H5ECLEAR;
/* insert entry as root object */
HDmemcpy(file->root_sym,ent,sizeof(H5G_entry_t));
FUNC_LEAVE (SUCCEED);
}
/*-------------------------------------------------------------------------
* Function: H5G_modify

3
src/H5Gpublic.h
View File

@ -21,6 +21,9 @@
/* Public headers needed by this file */
#include <H5public.h>
/* Default root directory size */
#define H5G_DEFAULT_ROOT SIZE 256
#ifdef __cplusplus
extern "C" {
#endif

27
src/H5Oprivate.h
View File

@ -124,6 +124,33 @@ typedef struct H5O_stab_t {
haddr_t heap; /*address of name heap */
} H5O_stab_t;
/*
* Simple Datatype message.
*/
#define H5O_SIM_DTYPE_ID 0x0003
extern const H5O_class_t H5O_SIM_DTYPE[1];
typedef struct {
uint8 length; /* Number of bytes */
uint8 arch; /* Architecture format of the data */
hatom_t type; /* Type of the data */
} H5O_sim_dtype_t;
/*
* Simple Dimensionality message.
*/
#define H5O_SIM_DIM_ID 0x0001
extern const H5O_class_t H5O_SIM_DIM[1];
typedef struct {
uint32 rank; /* Number of dimensions */
uint32 dim_flags; /* Dimension flags */
uint32 *size; /* Dimension sizes */
uint32 *max; /* Maximum dimension sizes */
uint32 *perm; /* Dimension permutations */
} H5O_sim_dim_t;
haddr_t H5O_new (hdf5_file_t *f, intn nlink, size_t size_hint);
intn H5O_link (hdf5_file_t *f, haddr_t addr, H5G_entry_t *ent, intn adjust);

400
src/H5Osdim.c Normal file
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@ -0,0 +1,400 @@
/****************************************************************************
* NCSA HDF *
* Software Development Group *
* National Center for Supercomputing Applications *
* University of Illinois at Urbana-Champaign *
* 605 E. Springfield, Champaign IL 61820 *
* *
* For conditions of distribution and use, see the accompanying *
* hdf/COPYING file. *
* *
****************************************************************************/
#ifdef RCSID
static char RcsId[] = "@(#)$Revision$";
#endif
/* $Id$ */
/*LINTLIBRARY */
/*+
FILE
H5Osdim.c
HDF5 Simple Dimensionality Object Header Message routines
EXPORTED ROUTINES
LIBRARY-SCOPED ROUTINES
LOCAL ROUTINES
+ */
#include <H5private.h>
#include <H5Eprivate.h>
#include <H5Gprivate.h>
#include <H5MMprivate.h>
#include <H5Oprivate.h>
#define PABLO_MASK H5O_sim_dim_mask
/* PRIVATE PROTOTYPES */
static void *H5O_sim_dim_decode (hdf5_file_t *f, size_t raw_size, const uint8 *p);
static herr_t H5O_sim_dim_encode (hdf5_file_t *f, size_t size, uint8 *p,
const void *_mesg);
static void *H5O_sim_dim_fast (const H5G_entry_t *ent, void *_mesg);
static hbool_t H5O_sim_dim_cache (H5G_entry_t *ent, const void *_mesg);
static void *H5O_sim_dim_copy (const void *_mesg, void *_dest);
static size_t H5O_sim_dim_size (hdf5_file_t *f, const void *_mesg);
static herr_t H5O_sim_dim_debug (hdf5_file_t *f, const void *_mesg,
FILE *stream, intn indent, intn fwidth);
/* This message derives from H5O */
const H5O_class_t H5O_SIM_DIM[1] = {{
H5O_SIM_DIM_ID, /* message id number */
"sim_dim", /* message name for debugging */
sizeof (H5O_sim_dim_t), /* native message size */
H5O_sim_dim_decode, /* decode message */
H5O_sim_dim_encode, /* encode message */
H5O_sim_dim_fast, /* get message from stab entry */
H5O_sim_dim_cache, /* put message into stab entry */
H5O_sim_dim_copy, /* copy the native value */
H5O_sim_dim_size, /* size of symbol table entry */
NULL, /* default reset method */
H5O_sim_dim_debug, /* debug the message */
}};
/* Is the interface initialized? */
static hbool_t interface_initialize_g = FALSE;
/*--------------------------------------------------------------------------
NAME
H5O_sim_dim_decode
PURPOSE
Decode a simple dimensionality message and return a pointer to a memory
struct with the decoded information
USAGE
void *H5O_sim_dim_decode(f, raw_size, p)
hdf5_file_t *f; IN: pointer to the HDF5 file struct
size_t raw_size; IN: size of the raw information buffer
const uint8 *p; IN: the raw information buffer
RETURNS
Pointer to the new message in native order on success, NULL on failure
DESCRIPTION
This function decodes the "raw" disk form of a simple dimensionality
message into a struct in memory native format. The struct is allocated
within this function using malloc() and is returned to the caller.
--------------------------------------------------------------------------*/
static void *
H5O_sim_dim_decode (hdf5_file_t *f, size_t raw_size, const uint8 *p)
{
H5O_sim_dim_t *sdim=NULL; /* New simple dimensionality structure */
uintn u; /* local counting variable */
FUNC_ENTER (H5O_sim_dim_decode, NULL, NULL);
/* check args */
assert (f);
assert (raw_size >= 8); /* at least the rank and flags must be present */
assert (p);
/* decode */
if((sdim = H5MM_xcalloc (1, sizeof(H5O_sim_dim_t)))!=NULL)
{
UINT32DECODE(p,sdim->rank);
UINT32DECODE(p,sdim->dim_flags);
if(sdim->rank>0)
{
sdim->size=H5MM_xmalloc(sizeof(uint32)*sdim->rank);
for(u=0; u<sdim->size; u++)
UINT32DECODE(p,sdim->size[u]);
if(sdim->dim_flags&0x01)
{
sdim->max=H5MM_xmalloc(sizeof(uint32)*sdim->rank);
for(u=0; u<sdim->size; u++)
UINT32DECODE(p,sdim->max[u]);
} /* end if */
if(sdim->dim_flags&0x02)
{
sdim->perm=H5MM_xmalloc(sizeof(uint32)*sdim->rank);
for(u=0; u<sdim->size; u++)
UINT32DECODE(p,sdim->perm[u]);
} /* end if */
} /* end if */
} /* end if */
done:
if(sdim == NULL)
{ /* Error condition cleanup */
} /* end if */
/* Normal function cleanup */
FUNC_LEAVE (sdim);
} /* end H5O_sim_dim_decode() */
/*--------------------------------------------------------------------------
NAME
H5O_sim_dim_encode
PURPOSE
Encode a simple dimensionality message
USAGE
herr_t H5O_sim_dim_encode(f, raw_size, p, mesg)
hdf5_file_t *f; IN: pointer to the HDF5 file struct
size_t raw_size; IN: size of the raw information buffer
const uint8 *p; IN: the raw information buffer
const void *mesg; IN: Pointer to the simple dimensionality struct
RETURNS
SUCCEED/FAIL
DESCRIPTION
This function encodes the native memory form of the simple
dimensionality message in the "raw" disk form.
--------------------------------------------------------------------------*/
static herr_t
H5O_sim_dim_encode (hdf5_file_t *f, size_t raw_size, uint8 *p, const void *mesg)
{
const H5O_sim_dim_t *sdim = (const H5O_sim_dim_t *)mesg;
uintn u; /* Local counting variable */
FUNC_ENTER (H5O_sim_dim_encode, NULL, FAIL);
/* check args */
assert (f);
assert (raw_size >= 8); /* at least the rank & flags must be present */
assert (p);
assert (sdtype);
/* encode */
UINT32ENCODE(p,sdim->rank);
UINT32ENCODE(p,sdim->dim_flags);
if(sdim->rank>0)
{
for(u=0; u<=sdim->rank; u++);
UINT32ENCODE(p,sdim->size[u]);
if(sdim->dim_flags&0x01)
{
for(u=0; u<=sdim->rank; u++);
UINT32ENCODE(p,sdim->max[u]);
} /* end if */
} /* end if */
FUNC_LEAVE (SUCCEED);
} /* end H5O_sim_dtype_encode() */
/*--------------------------------------------------------------------------
NAME
H5O_sim_dtype_fast
PURPOSE
Initializes a new simple datatype struct with info from a symbol table
entry.
USAGE
void *H5O_sim_dtype_fast(ent, mesg)
const H5G_entry_t *ent; IN: pointer to the symbol table entry
const void *mesg; IN: Pointer to the simple datatype struct
RETURNS
Pointer to the message structure (allocated if none is supplied) on success,
NULL on failure
DESCRIPTION
This function fills the native memory form of the simple datatype
message from a symbol-table entry cache fields. (This method is required
for simple datatypes, as they can be cached in the symbol-table entry)
--------------------------------------------------------------------------*/
static void *
H5O_sim_dtype_fast (const H5G_entry_t *ent, void *mesg)
{
H5O_sim_dtype_t *sdtype = (H5O_sim_dtype_t *)mesg;
const uint8 *p;
FUNC_ENTER (H5O_sim_dtype_fast, NULL, NULL);
/* check args */
assert (ent);
if (H5G_CACHED_SDATA==ent->type)
{
if (!sdtype)
if((sdtype = H5MM_xcalloc (1, sizeof(H5O_sim_dtype_t)))!=NULL)
{
p=&(uint8 *)ent->cache.sdata.nt;
sdtype->length=*p++;
sdtype->arch=*p++;
UINT16DECODE(p,sdtype->type);
} /* end if */
} /* end if */
else
sdtype = NULL;
FUNC_LEAVE (sdtype);
} /* end H5O_sim_dtype_fast() */
/*--------------------------------------------------------------------------
NAME
H5O_sim_dtype_cache
PURPOSE
Copies a simple datatype message into the cache portion of a symbol table
entry.
USAGE
hbool_t H5O_sim_dtype_cache(ent, mesg)
const H5G_entry_t *ent; IN: Pointer to the symbol table entry
const void *mesg; IN: Pointer to the simple datatype struct
RETURNS
BTRUE if symbol-table modified, BFALSE if not modified, BFAIL on failure.
DESCRIPTION
This function is the opposite of the H5O_sim_dtype_fast method, it
copies a message into the cached portion of a symbol-table entry. (This
method is required for simple datatypes, as they can be cached in the
symbol-table entry)
--------------------------------------------------------------------------*/
static hbool_t
H5O_sim_dtype_cache (H5G_entry_t *ent, const void *mesg)
{
const H5O_sim_dtype_t *sdtype = (const H5O_sim_dtype_t *)mesg;
const uint8 *p;
hbool_t modified = BFALSE;
FUNC_ENTER (H5O_sim_dtype_cache, NULL, BFAIL);
/* check args */
assert (ent);
assert (sdtype);
/*
* We do this in two steps so Purify doesn't complain about
* uninitialized memory reads even though they don't bother
* anything.
*/
p=(uint8 *)&(ent->cache.sdata);
if (H5G_CACHED_SDATA != ent->type)
{
modified = BTRUE;
ent->type = H5G_CACHED_SDATA;
*p++=sdtype->length;
*p++=sdtype->arch;
UINT16ENCODE(p,sdtype->type);
} /* end if */
else
{
if(ent->cache.sdata.length= sdtype->length)
{
modified = BTRUE;
ent->cache.sdata.length = sdtype->length;
} /* end if */
if (ent->cache.sdata.arch != sdtype->arch)
{
modified = BTRUE;
ent->cache.sdata.arch = sdtype->arch;
} /* end if */
if (ent->cache.sdata.type != sdtype->type)
{
modified = BTRUE;
ent->cache.sdata.type = sdtype->type;
} /* end if */
} /* end else */
FUNC_LEAVE (modified);
} /* end H5O_sim_dtype_cache() */
/*--------------------------------------------------------------------------
NAME
H5O_sim_dtype_copy
PURPOSE
Copies a message from MESG to DEST, allocating DEST if necessary.
USAGE
void *H5O_sim_dtype_copy(mesg, dest)
const void *mesg; IN: Pointer to the source simple datatype struct
const void *dest; IN: Pointer to the destination simple datatype struct
RETURNS
Pointer to DEST on success, NULL on failure
DESCRIPTION
This function copies a native (memory) simple datatype message,
allocating the destination structure if necessary.
--------------------------------------------------------------------------*/
static void *
H5O_sim_dtype_copy (const void *mesg, void *dest)
{
const H5O_sim_dtype_t *src = (const H5O_sim_dtype_t *)mesg;
H5O_sim_dtype_t *dst = (H5O_sim_dtype_t *)dest;
FUNC_ENTER (H5O_sim_dtype_copy, NULL, NULL);
/* check args */
assert (src);
if (!dst) dst = H5MM_xcalloc (1, sizeof(H5O_sim_dtype_t));
/* copy */
HDmempcy(dst,src,sizeof(H5O_sim_dtype_t));
FUNC_LEAVE ((void*)dst);
} /* end H5O_sim_dtype_copy() */
/*--------------------------------------------------------------------------
NAME
H5O_sim_dtype_size
PURPOSE
Return the raw message size in bytes
USAGE
void *H5O_sim_dtype_copy(f, mesg)
hdf5_file_t *f; IN: pointer to the HDF5 file struct
const void *mesg; IN: Pointer to the source simple datatype struct
RETURNS
Size of message on success, FAIL on failure
DESCRIPTION
This function returns the size of the raw simple datatype message on
success. (Not counting the message type or size fields, only the data
portion of the message). It doesn't take into account alignment.
--------------------------------------------------------------------------*/
static size_t
H5O_sim_dtype_size (hdf5_file_t *f, const void *mesg)
{
FUNC_ENTER (H5O_sim_dtype_size, NULL, FAIL);
FUNC_LEAVE (4);
} /* end H5O_sim_dtype_size() */
/*--------------------------------------------------------------------------
NAME
H5O_sim_dtype_debug
PURPOSE
Prints debugging information for a simple datatype message
USAGE
void *H5O_sim_dtype_debug(f, mesg, stream, indent, fwidth)
hdf5_file_t *f; IN: pointer to the HDF5 file struct
const void *mesg; IN: Pointer to the source simple datatype struct
FILE *stream; IN: Pointer to the stream for output data
intn indent; IN: Amount to indent information by
intn fwidth; IN: Field width (?)
RETURNS
SUCCEED/FAIL
DESCRIPTION
This function prints debugging output to the stream passed as a
parameter.
--------------------------------------------------------------------------*/
static herr_t
H5O_sim_dtype_debug (hdf5_file_t *f, const void *mesg, FILE *stream,
intn indent, intn fwidth)
{
const H5O_sim_dtype_t *sdtype = (const H5O_sim_dtype_t *)mesg;
FUNC_ENTER (H5O_sim_dtype_debug, NULL, FAIL);
/* check args */
assert (f);
assert (sdtype);
assert (stream);
assert (indent>=0);
assert (fwidth>=0);
fprintf (stream, "%*s%-*s %lu\n", indent, "", fwidth,
"Length:",
(unsigned long)(sdtype->length));
fprintf (stream, "%*s%-*s %lu\n", indent, "", fwidth,
"Architecture:",
(unsigned long)(sdtype->arch));
fprintf (stream, "%*s%-*s %lu\n", indent, "", fwidth,
"Data-Type:",
(unsigned long)(sdtype->type));
FUNC_LEAVE (SUCCEED);
} /* end H5O_sim_dtype_debug() */

364
src/H5Osdtyp.c Normal file
View File

@ -0,0 +1,364 @@
/****************************************************************************
* NCSA HDF *
* Software Development Group *
* National Center for Supercomputing Applications *
* University of Illinois at Urbana-Champaign *
* 605 E. Springfield, Champaign IL 61820 *
* *
* For conditions of distribution and use, see the accompanying *
* hdf/COPYING file. *
* *
****************************************************************************/
#ifdef RCSID
static char RcsId[] = "@(#)$Revision$";
#endif
/* $Id$ */
/*LINTLIBRARY */
/*+
FILE
H5Osdtyp.c
HDF5 Simple Datatype Object Header Message routines
EXPORTED ROUTINES
LIBRARY-SCOPED ROUTINES
LOCAL ROUTINES
+ */
#include <H5private.h>
#include <H5Eprivate.h>
#include <H5Gprivate.h>
#include <H5MMprivate.h>
#include <H5Oprivate.h>
#define PABLO_MASK H5O_sim_dtype_mask
/* PRIVATE PROTOTYPES */
static void *H5O_sim_dtype_decode (hdf5_file_t *f, size_t raw_size, const uint8 *p);
static herr_t H5O_sim_dtype_encode (hdf5_file_t *f, size_t size, uint8 *p,
const void *_mesg);
static void *H5O_sim_dtype_fast (const H5G_entry_t *ent, void *_mesg);
static hbool_t H5O_sim_dtype_cache (H5G_entry_t *ent, const void *_mesg);
static void *H5O_sim_dtype_copy (const void *_mesg, void *_dest);
static size_t H5O_sim_dtype_size (hdf5_file_t *f, const void *_mesg);
static herr_t H5O_sim_dtype_debug (hdf5_file_t *f, const void *_mesg,
FILE *stream, intn indent, intn fwidth);
/* This message derives from H5O */
const H5O_class_t H5O_SIM_DTYPE[1] = {{
H5O_SIM_DTYPE_ID, /* message id number */
"sim_dtype", /* message name for debugging */
sizeof (H5O_sim_dtype_t), /* native message size */
H5O_sim_dtype_decode, /* decode message */
H5O_sim_dtype_encode, /* encode message */
H5O_sim_dtype_fast, /* get message from stab entry */
H5O_sim_dtype_cache, /* put message into stab entry */
H5O_sim_dtype_copy, /* copy the native value */
H5O_sim_dtype_size, /* size of symbol table entry */
NULL, /* default reset method */
H5O_sim_dtype_debug, /* debug the message */
}};
/* Is the interface initialized? */
static hbool_t interface_initialize_g = FALSE;
/*--------------------------------------------------------------------------
NAME
H5O_sim_dtype_decode
PURPOSE
Decode a simple datatype message and return a pointer to a memory struct
with the decoded information
USAGE
void *H5O_sim_dtype_decode(f, raw_size, p)
hdf5_file_t *f; IN: pointer to the HDF5 file struct
size_t raw_size; IN: size of the raw information buffer
const uint8 *p; IN: the raw information buffer
RETURNS
Pointer to the new message in native order on success, NULL on failure
DESCRIPTION
This function decodes the "raw" disk form of a simple datatype message
into a struct in memory native format. The struct is allocated within this
function using malloc() and is returned to the caller.
--------------------------------------------------------------------------*/
static void *
H5O_sim_dtype_decode (hdf5_file_t *f, size_t raw_size, const uint8 *p)
{
H5O_sim_dtype_t *sdtype;
FUNC_ENTER (H5O_sim_dtype_decode, NULL, NULL);
/* check args */
assert (f);
assert (raw_size == 4);
assert (p);
/* decode */
if((sdtype = H5MM_xcalloc (1, sizeof(H5O_sim_dtype_t)))!=NULL)
{
sdtype->length=*p++;
sdtype->arch=*p++;
UINT16DECODE(p,sdtype->type);
} /* end if */
FUNC_LEAVE (sdtype);
} /* end H5O_sim_dtype_decode() */
/*--------------------------------------------------------------------------
NAME
H5O_sim_dtype_encode
PURPOSE
Encode a simple datatype message
USAGE
herr_t H5O_sim_dtype_encode(f, raw_size, p, mesg)
hdf5_file_t *f; IN: pointer to the HDF5 file struct
size_t raw_size; IN: size of the raw information buffer
const uint8 *p; IN: the raw information buffer
const void *mesg; IN: Pointer to the simple datatype struct
RETURNS
SUCCEED/FAIL
DESCRIPTION
This function encodes the native memory form of the simple datatype
message in the "raw" disk form.
--------------------------------------------------------------------------*/
static herr_t
H5O_sim_dtype_encode (hdf5_file_t *f, size_t raw_size, uint8 *p, const void *mesg)
{
const H5O_sim_dtype_t *sdtype = (const H5O_sim_dtype_t *)mesg;
FUNC_ENTER (H5O_sim_dtype_encode, NULL, FAIL);
/* check args */
assert (f);
assert (raw_size == 4);
assert (p);
assert (sdtype);
/* encode */
*p++=sdtype->length;
*p++=sdtype->arch;
UINT16ENCODE(p,sdtype->type);
FUNC_LEAVE (SUCCEED);
} /* end H5O_sim_dtype_encode() */
/*--------------------------------------------------------------------------
NAME
H5O_sim_dtype_fast
PURPOSE
Initializes a new simple datatype struct with info from a symbol table
entry.
USAGE
void *H5O_sim_dtype_fast(ent, mesg)
const H5G_entry_t *ent; IN: pointer to the symbol table entry
const void *mesg; IN: Pointer to the simple datatype struct
RETURNS
Pointer to the message structure (allocated if none is supplied) on success,
NULL on failure
DESCRIPTION
This function fills the native memory form of the simple datatype
message from a symbol-table entry cache fields. (This method is required
for simple datatypes, as they can be cached in the symbol-table entry)
--------------------------------------------------------------------------*/
static void *
H5O_sim_dtype_fast (const H5G_entry_t *ent, void *mesg)
{
H5O_sim_dtype_t *sdtype = (H5O_sim_dtype_t *)mesg;
const uint8 *p;
FUNC_ENTER (H5O_sim_dtype_fast, NULL, NULL);
/* check args */
assert (ent);
if (H5G_CACHED_SDATA==ent->type)
{
if (!sdtype)
if((sdtype = H5MM_xcalloc (1, sizeof(H5O_sim_dtype_t)))!=NULL)
{
p=&(uint8 *)ent->cache.sdata.nt;
sdtype->length=*p++;
sdtype->arch=*p++;
UINT16DECODE(p,sdtype->type);
} /* end if */
} /* end if */
else
sdtype = NULL;
FUNC_LEAVE (sdtype);
} /* end H5O_sim_dtype_fast() */
/*--------------------------------------------------------------------------
NAME
H5O_sim_dtype_cache
PURPOSE
Copies a simple datatype message into the cache portion of a symbol table
entry.
USAGE
hbool_t H5O_sim_dtype_cache(ent, mesg)
const H5G_entry_t *ent; IN: Pointer to the symbol table entry
const void *mesg; IN: Pointer to the simple datatype struct
RETURNS
BTRUE if symbol-table modified, BFALSE if not modified, BFAIL on failure.
DESCRIPTION
This function is the opposite of the H5O_sim_dtype_fast method, it
copies a message into the cached portion of a symbol-table entry. (This
method is required for simple datatypes, as they can be cached in the
symbol-table entry)
--------------------------------------------------------------------------*/
static hbool_t
H5O_sim_dtype_cache (H5G_entry_t *ent, const void *mesg)
{
const H5O_sim_dtype_t *sdtype = (const H5O_sim_dtype_t *)mesg;
const uint8 *p;
hbool_t modified = BFALSE;
FUNC_ENTER (H5O_sim_dtype_cache, NULL, BFAIL);
/* check args */
assert (ent);
assert (sdtype);
/*
* We do this in two steps so Purify doesn't complain about
* uninitialized memory reads even though they don't bother
* anything.
*/
p=(uint8 *)&(ent->cache.sdata);
if (H5G_CACHED_SDATA != ent->type)
{
modified = BTRUE;
ent->type = H5G_CACHED_SDATA;
*p++=sdtype->length;
*p++=sdtype->arch;
UINT16ENCODE(p,sdtype->type);
} /* end if */
else
{
if(ent->cache.sdata.length= sdtype->length)
{
modified = BTRUE;
ent->cache.sdata.length = sdtype->length;
} /* end if */
if (ent->cache.sdata.arch != sdtype->arch)
{
modified = BTRUE;
ent->cache.sdata.arch = sdtype->arch;
} /* end if */
if (ent->cache.sdata.type != sdtype->type)
{
modified = BTRUE;
ent->cache.sdata.type = sdtype->type;
} /* end if */
} /* end else */
FUNC_LEAVE (modified);
} /* end H5O_sim_dtype_cache() */
/*--------------------------------------------------------------------------
NAME
H5O_sim_dtype_copy
PURPOSE
Copies a message from MESG to DEST, allocating DEST if necessary.
USAGE
void *H5O_sim_dtype_copy(mesg, dest)
const void *mesg; IN: Pointer to the source simple datatype struct
const void *dest; IN: Pointer to the destination simple datatype struct
RETURNS
Pointer to DEST on success, NULL on failure
DESCRIPTION
This function copies a native (memory) simple datatype message,
allocating the destination structure if necessary.
--------------------------------------------------------------------------*/
static void *
H5O_sim_dtype_copy (const void *mesg, void *dest)
{
const H5O_sim_dtype_t *src = (const H5O_sim_dtype_t *)mesg;
H5O_sim_dtype_t *dst = (H5O_sim_dtype_t *)dest;
FUNC_ENTER (H5O_sim_dtype_copy, NULL, NULL);
/* check args */
assert (src);
if (!dst) dst = H5MM_xcalloc (1, sizeof(H5O_sim_dtype_t));
/* copy */
HDmempcy(dst,src,sizeof(H5O_sim_dtype_t));
FUNC_LEAVE ((void*)dst);
} /* end H5O_sim_dtype_copy() */
/*--------------------------------------------------------------------------
NAME
H5O_sim_dtype_size
PURPOSE
Return the raw message size in bytes
USAGE
void *H5O_sim_dtype_copy(f, mesg)
hdf5_file_t *f; IN: pointer to the HDF5 file struct
const void *mesg; IN: Pointer to the source simple datatype struct
RETURNS
Size of message on success, FAIL on failure
DESCRIPTION
This function returns the size of the raw simple datatype message on
success. (Not counting the message type or size fields, only the data
portion of the message). It doesn't take into account alignment.
--------------------------------------------------------------------------*/
static size_t
H5O_sim_dtype_size (hdf5_file_t *f, const void *mesg)
{
FUNC_ENTER (H5O_sim_dtype_size, NULL, FAIL);
FUNC_LEAVE (4);
} /* end H5O_sim_dtype_size() */
/*--------------------------------------------------------------------------
NAME
H5O_sim_dtype_debug
PURPOSE
Prints debugging information for a simple datatype message
USAGE
void *H5O_sim_dtype_debug(f, mesg, stream, indent, fwidth)
hdf5_file_t *f; IN: pointer to the HDF5 file struct
const void *mesg; IN: Pointer to the source simple datatype struct
FILE *stream; IN: Pointer to the stream for output data
intn indent; IN: Amount to indent information by
intn fwidth; IN: Field width (?)
RETURNS
SUCCEED/FAIL
DESCRIPTION
This function prints debugging output to the stream passed as a
parameter.
--------------------------------------------------------------------------*/
static herr_t
H5O_sim_dtype_debug (hdf5_file_t *f, const void *mesg, FILE *stream,
intn indent, intn fwidth)
{
const H5O_sim_dtype_t *sdtype = (const H5O_sim_dtype_t *)mesg;
FUNC_ENTER (H5O_sim_dtype_debug, NULL, FAIL);
/* check args */
assert (f);
assert (sdtype);
assert (stream);
assert (indent>=0);
assert (fwidth>=0);
fprintf (stream, "%*s%-*s %lu\n", indent, "", fwidth,
"Length:",
(unsigned long)(sdtype->length));
fprintf (stream, "%*s%-*s %lu\n", indent, "", fwidth,
"Architecture:",
(unsigned long)(sdtype->arch));
fprintf (stream, "%*s%-*s %lu\n", indent, "", fwidth,
"Data-Type:",
(unsigned long)(sdtype->type));
FUNC_LEAVE (SUCCEED);
} /* end H5O_sim_dtype_debug() */