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Merge pull request #762 in HDFFV/hdf5 from ~DEROBINS/hdf5_der:h5r_cleanup to develop

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* commit 'd0e32b545c41dcc36a69ab146b54b55e7ac9dc07':
  Split internal H5R functionality into H5Rint.c.
This commit is contained in:
Dana Robinson 2017-11-09 17:23:11 -06:00
commit fb5c4f68fc
14 changed files with 951 additions and 854 deletions
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1
MANIFEST
View File

@ -810,6 +810,7 @@
./src/H5PLextern.h ./src/H5PLextern.h
./src/H5R.c ./src/H5R.c
./src/H5Rdeprec.c ./src/H5Rdeprec.c
./src/H5Rint.c
./src/H5Rmodule.h ./src/H5Rmodule.h
./src/H5Rpkg.h ./src/H5Rpkg.h
./src/H5Rprivate.h ./src/H5Rprivate.h

1
src/CMakeLists.txt
View File

@ -532,6 +532,7 @@ IDE_GENERATED_PROPERTIES ("H5PL" "${H5PL_HDRS}" "${H5PL_SOURCES}" )
set (H5R_SOURCES set (H5R_SOURCES
${HDF5_SRC_DIR}/H5R.c ${HDF5_SRC_DIR}/H5R.c
${HDF5_SRC_DIR}/H5Rdeprec.c ${HDF5_SRC_DIR}/H5Rdeprec.c
${HDF5_SRC_DIR}/H5Rint.c
) )
set (H5R_HDRS set (H5R_HDRS
${HDF5_SRC_DIR}/H5Rpkg.h ${HDF5_SRC_DIR}/H5Rpkg.h

4
src/H5Oprivate.h
View File

@ -24,6 +24,9 @@
#ifndef _H5Oprivate_H #ifndef _H5Oprivate_H
#define _H5Oprivate_H #define _H5Oprivate_H
/* Early typedefs to avoid circular dependencies */
typedef struct H5O_t H5O_t;
/* Include the public header file for this API */ /* Include the public header file for this API */
#include "H5Opublic.h" /* Object header functions */ #include "H5Opublic.h" /* Object header functions */
@ -44,7 +47,6 @@
/* Forward references of package typedefs */ /* Forward references of package typedefs */
typedef struct H5O_msg_class_t H5O_msg_class_t; typedef struct H5O_msg_class_t H5O_msg_class_t;
typedef struct H5O_mesg_t H5O_mesg_t; typedef struct H5O_mesg_t H5O_mesg_t;
typedef struct H5O_t H5O_t;
/* Values used to create the shared message & attribute heaps */ /* Values used to create the shared message & attribute heaps */
/* (Note that these parameters have been tuned so that the resulting heap ID /* (Note that these parameters have been tuned so that the resulting heap ID

765
src/H5R.c
View File

@ -21,16 +21,13 @@
/***********/ /***********/
/* Headers */ /* Headers */
/***********/ /***********/
#include "H5private.h" /* Generic Functions */ #include "H5private.h" /* Generic Functions */
#include "H5ACprivate.h" /* Metadata cache */ #include "H5ACprivate.h" /* Metadata cache */
#include "H5Dprivate.h" /* Datasets */ #include "H5Eprivate.h" /* Error handling */
#include "H5Eprivate.h" /* Error handling */ #include "H5Gprivate.h" /* Groups */
#include "H5Gprivate.h" /* Groups */ #include "H5Iprivate.h" /* IDs */
#include "H5HGprivate.h" /* Global Heaps */ #include "H5Rpkg.h" /* References */
#include "H5Iprivate.h" /* IDs */ #include "H5Sprivate.h" /* Dataspaces */
#include "H5MMprivate.h" /* Memory management */
#include "H5Rpkg.h" /* References */
#include "H5Sprivate.h" /* Dataspaces */
/****************/ /****************/
@ -47,20 +44,11 @@
/* Local Prototypes */ /* Local Prototypes */
/********************/ /********************/
static herr_t H5R_create(void *ref, H5G_loc_t *loc, const char *name,
H5R_type_t ref_type, H5S_t *space, hid_t dxpl_id);
static H5S_t * H5R_get_region(H5F_t *file, hid_t dxpl_id, const void *_ref);
static ssize_t H5R_get_name(H5F_t *file, hid_t lapl_id, hid_t dxpl_id, hid_t id,
H5R_type_t ref_type, const void *_ref, char *name, size_t size);
/*********************/ /*********************/
/* Package Variables */ /* Package Variables */
/*********************/ /*********************/
/* Package initialization variable */
hbool_t H5_PKG_INIT_VAR = FALSE;
/*****************************/ /*****************************/
/* Library Private Variables */ /* Library Private Variables */
@ -71,274 +59,6 @@ hbool_t H5_PKG_INIT_VAR = FALSE;
/* Local Variables */ /* Local Variables */
/*******************/ /*******************/
/* Reference ID class */
static const H5I_class_t H5I_REFERENCE_CLS[1] = {{
H5I_REFERENCE, /* ID class value */
0, /* Class flags */
0, /* # of reserved IDs for class */
NULL /* Callback routine for closing objects of this class */
}};
/* Flag indicating "top" of interface has been initialized */
static hbool_t H5R_top_package_initialize_s = FALSE;
/*--------------------------------------------------------------------------
NAME
H5R__init_package -- Initialize interface-specific information
USAGE
herr_t H5R__init_package()
RETURNS
Non-negative on success/Negative on failure
DESCRIPTION
Initializes any interface-specific data or routines.
--------------------------------------------------------------------------*/
herr_t
H5R__init_package(void)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* Initialize the atom group for the file IDs */
if(H5I_register_type(H5I_REFERENCE_CLS) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTINIT, FAIL, "unable to initialize interface")
/* Mark "top" of interface as initialized, too */
H5R_top_package_initialize_s = TRUE;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5R__init_package() */
/*--------------------------------------------------------------------------
NAME
H5R_top_term_package
PURPOSE
Terminate various H5R objects
USAGE
void H5R_top_term_package()
RETURNS
void
DESCRIPTION
Release IDs for the atom group, deferring full interface shutdown
until later (in H5R_term_package).
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
Can't report errors...
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
int
H5R_top_term_package(void)
{
int n = 0;
FUNC_ENTER_NOAPI_NOINIT_NOERR
if(H5R_top_package_initialize_s) {
if(H5I_nmembers(H5I_REFERENCE) > 0) {
(void)H5I_clear_type(H5I_REFERENCE, FALSE, FALSE);
n++; /*H5I*/
} /* end if */
/* Mark closed */
if(0 == n)
H5R_top_package_initialize_s = FALSE;
} /* end if */
FUNC_LEAVE_NOAPI(n)
} /* end H5R_top_term_package() */
/*--------------------------------------------------------------------------
NAME
H5R_term_package
PURPOSE
Terminate various H5R objects
USAGE
void H5R_term_package()
RETURNS
void
DESCRIPTION
Release the atom group and any other resources allocated.
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
Can't report errors...
Finishes shutting down the interface, after H5R_top_term_package()
is called
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
int
H5R_term_package(void)
{
int n = 0;
FUNC_ENTER_NOAPI_NOINIT_NOERR
if(H5_PKG_INIT_VAR) {
/* Sanity checks */
HDassert(0 == H5I_nmembers(H5I_REFERENCE));
HDassert(FALSE == H5R_top_package_initialize_s);
/* Destroy the reference id group */
n += (H5I_dec_type_ref(H5I_REFERENCE) > 0);
/* Mark closed */
if(0 == n)
H5_PKG_INIT_VAR = FALSE;
} /* end if */
FUNC_LEAVE_NOAPI(n)
} /* end H5R_term_package() */
/*--------------------------------------------------------------------------
NAME
H5R_create
PURPOSE
Creates a particular kind of reference for the user
USAGE
herr_t H5R_create(ref, loc, name, ref_type, space)
void *ref; OUT: Reference created
H5G_loc_t *loc; IN: File location used to locate object pointed to
const char *name; IN: Name of object at location LOC_ID of object
pointed to
H5R_type_t ref_type; IN: Type of reference to create
H5S_t *space; IN: Dataspace ID with selection, used for Dataset
Region references.
RETURNS
Non-negative on success/Negative on failure
DESCRIPTION
Creates a particular type of reference specified with REF_TYPE, in the
space pointed to by REF. The LOC_ID and NAME are used to locate the object
pointed to and the SPACE_ID is used to choose the region pointed to (for
Dataset Region references).
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
static herr_t
H5R_create(void *_ref, H5G_loc_t *loc, const char *name, H5R_type_t ref_type, H5S_t *space, hid_t dxpl_id)
{
H5G_loc_t obj_loc; /* Group hier. location of object */
H5G_name_t path; /* Object group hier. path */
H5O_loc_t oloc; /* Object object location */
hbool_t obj_found = FALSE; /* Object location found */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
HDassert(_ref);
HDassert(loc);
HDassert(name);
HDassert(ref_type > H5R_BADTYPE && ref_type < H5R_MAXTYPE);
/* Set up object location to fill in */
obj_loc.oloc = &oloc;
obj_loc.path = &path;
H5G_loc_reset(&obj_loc);
/* Find the object */
if(H5G_loc_find(loc, name, &obj_loc, H5P_DEFAULT, dxpl_id) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_NOTFOUND, FAIL, "object not found")
obj_found = TRUE;
switch(ref_type) {
case H5R_OBJECT:
{
hobj_ref_t *ref = (hobj_ref_t *)_ref; /* Get pointer to correct type of reference struct */
*ref = obj_loc.oloc->addr;
break;
}
case H5R_DATASET_REGION:
{
H5HG_t hobjid; /* Heap object ID */
hdset_reg_ref_t *ref = (hdset_reg_ref_t *)_ref; /* Get pointer to correct type of reference struct */
hssize_t buf_size; /* Size of buffer needed to serialize selection */
uint8_t *p; /* Pointer to OID to store */
uint8_t *buf; /* Buffer to store serialized selection in */
unsigned heapid_found; /* Flag for non-zero heap ID found */
unsigned u; /* local index */
/* Set up information for dataset region */
/* Return any previous heap block to the free list if we are garbage collecting */
if(H5F_GC_REF(loc->oloc->file)) {
/* Check for an existing heap ID in the reference */
for(u = 0, heapid_found = 0, p = (uint8_t *)ref; u < H5R_DSET_REG_REF_BUF_SIZE; u++)
if(p[u] != 0) {
heapid_found = 1;
break;
} /* end if */
if(heapid_found != 0) {
/* Return heap block to free list */
} /* end if */
} /* end if */
/* Zero the heap ID out, may leak heap space if user is re-using reference and doesn't have garbage collection on */
HDmemset(ref, 0, H5R_DSET_REG_REF_BUF_SIZE);
/* Get the amount of space required to serialize the selection */
if((buf_size = H5S_SELECT_SERIAL_SIZE(space)) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTINIT, FAIL, "Invalid amount of space for serializing selection")
/* Increase buffer size to allow for the dataset OID */
buf_size += (hssize_t)sizeof(haddr_t);
/* Allocate the space to store the serialized information */
H5_CHECK_OVERFLOW(buf_size, hssize_t, size_t);
if(NULL == (buf = (uint8_t *)H5MM_malloc((size_t)buf_size)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed")
/* Serialize information for dataset OID into heap buffer */
p = (uint8_t *)buf;
H5F_addr_encode(loc->oloc->file, &p, obj_loc.oloc->addr);
/* Serialize the selection into heap buffer */
if(H5S_SELECT_SERIALIZE(space, &p) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTCOPY, FAIL, "Unable to serialize selection")
/* Save the serialized buffer for later */
H5_CHECK_OVERFLOW(buf_size, hssize_t, size_t);
if(H5HG_insert(loc->oloc->file, dxpl_id, (size_t)buf_size, buf, &hobjid) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_WRITEERROR, FAIL, "Unable to serialize selection")
/* Serialize the heap ID and index for storage in the file */
p = (uint8_t *)ref;
H5F_addr_encode(loc->oloc->file, &p, hobjid.addr);
UINT32ENCODE(p, hobjid.idx);
/* Free the buffer we serialized data in */
H5MM_xfree(buf);
break;
}
case H5R_BADTYPE:
case H5R_MAXTYPE:
default:
HDassert("unknown reference type" && 0);
HGOTO_ERROR(H5E_REFERENCE, H5E_UNSUPPORTED, FAIL, "internal error (unknown reference type)")
} /* end switch */
done:
if(obj_found)
H5G_loc_free(&obj_loc);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5R_create() */
/*-------------------------------------------------------------------------- /*--------------------------------------------------------------------------
NAME NAME
@ -378,189 +98,29 @@ H5Rcreate(void *ref, hid_t loc_id, const char *name, H5R_type_t ref_type, hid_t
H5TRACE5("e", "*xi*sRti", ref, loc_id, name, ref_type, space_id); H5TRACE5("e", "*xi*sRti", ref, loc_id, name, ref_type, space_id);
/* Check args */ /* Check args */
if(ref == NULL) if (ref == NULL)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference pointer") HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference pointer")
if(H5G_loc(loc_id, &loc) < 0) if (H5G_loc(loc_id, &loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location") HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location")
if(!name || !*name) if (!name || !*name)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no name given") HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no name given")
if(ref_type <= H5R_BADTYPE || ref_type >= H5R_MAXTYPE) if (ref_type <= H5R_BADTYPE || ref_type >= H5R_MAXTYPE)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference type") HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference type")
if(ref_type != H5R_OBJECT && ref_type != H5R_DATASET_REGION) if (ref_type != H5R_OBJECT && ref_type != H5R_DATASET_REGION)
HGOTO_ERROR(H5E_ARGS, H5E_UNSUPPORTED, FAIL, "reference type not supported") HGOTO_ERROR(H5E_ARGS, H5E_UNSUPPORTED, FAIL, "reference type not supported")
if(space_id == (-1) && ref_type == H5R_DATASET_REGION) if (space_id == (-1) && ref_type == H5R_DATASET_REGION)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "reference region dataspace id must be valid") HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "reference region dataspace id must be valid")
if(space_id != (-1) && (NULL == (space = (H5S_t *)H5I_object_verify(space_id, H5I_DATASPACE)))) if (space_id != (-1) && (NULL == (space = (H5S_t *)H5I_object_verify(space_id, H5I_DATASPACE))))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataspace") HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataspace")
/* Create reference */ /* Create reference */
if((ret_value = H5R_create(ref, &loc, name, ref_type, space, H5AC_ind_read_dxpl_id)) < 0) if ((ret_value = H5R_create(ref, &loc, name, ref_type, space, H5AC_ind_read_dxpl_id)) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTINIT, FAIL, "unable to create reference") HGOTO_ERROR(H5E_REFERENCE, H5E_CANTINIT, FAIL, "unable to create reference")
done: done:
FUNC_LEAVE_API(ret_value) FUNC_LEAVE_API(ret_value)
} /* end H5Rcreate() */ } /* end H5Rcreate() */
/*--------------------------------------------------------------------------
NAME
H5R_dereference
PURPOSE
Opens the HDF5 object referenced.
USAGE
hid_t H5R_dereference(ref)
H5F_t *file; IN: File the object being dereferenced is within
H5R_type_t ref_type; IN: Type of reference
void *ref; IN: Reference to open.
RETURNS
Valid ID on success, Negative on failure
DESCRIPTION
Given a reference to some object, open that object and return an ID for
that object.
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
Currently only set up to work with references to datasets
EXAMPLES
REVISION LOG
Raymond Lu
13 July 2011
I added the OAPL_ID parameter for the object being referenced. It only
supports dataset access property list currently.
M. Scot Breitenfeld
3 March 2015
Added a check for undefined reference pointer.
--------------------------------------------------------------------------*/
hid_t
H5R_dereference(H5F_t *file, hid_t oapl_id, hid_t dxpl_id, H5R_type_t ref_type, const void *_ref, hbool_t app_ref)
{
H5O_loc_t oloc; /* Object location */
H5G_name_t path; /* Path of object */
H5G_loc_t loc; /* Group location */
unsigned rc; /* Reference count of object */
H5O_type_t obj_type; /* Type of object */
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
HDassert(_ref);
HDassert(ref_type > H5R_BADTYPE && ref_type < H5R_MAXTYPE);
HDassert(file);
/* Initialize the object location */
H5O_loc_reset(&oloc);
oloc.file = file;
switch(ref_type) {
case H5R_OBJECT:
oloc.addr = *(const hobj_ref_t *)_ref; /* Only object references currently supported */
if(!H5F_addr_defined(oloc.addr) || oloc.addr == 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "Undefined reference pointer")
break;
case H5R_DATASET_REGION:
{
H5HG_t hobjid; /* Heap object ID */
uint8_t *buf; /* Buffer to store serialized selection in */
const uint8_t *p; /* Pointer to OID to store */
/* Get the heap ID for the dataset region */
p = (const uint8_t *)_ref;
H5F_addr_decode(oloc.file, &p, &(hobjid.addr));
UINT32DECODE(p, hobjid.idx);
if(!H5F_addr_defined(hobjid.addr) || hobjid.addr == 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "Undefined reference pointer")
/* Get the dataset region from the heap (allocate inside routine) */
if(NULL == (buf = (uint8_t *)H5HG_read(oloc.file, dxpl_id, &hobjid, NULL, NULL)))
HGOTO_ERROR(H5E_REFERENCE, H5E_READERROR, FAIL, "Unable to read dataset region information")
/* Get the object oid for the dataset */
p = buf;
H5F_addr_decode(oloc.file, &p, &(oloc.addr));
/* Free the buffer allocated in H5HG_read() */
H5MM_xfree(buf);
} /* end case */
break;
case H5R_BADTYPE:
case H5R_MAXTYPE:
default:
HDassert("unknown reference type" && 0);
HGOTO_ERROR(H5E_REFERENCE, H5E_UNSUPPORTED, FAIL, "internal error (unknown reference type)")
} /* end switch */
/* Get the # of links for object, and its type */
/* (To check to make certain that this object hasn't been deleted since the reference was created) */
if(H5O_get_rc_and_type(&oloc, dxpl_id, &rc, &obj_type) < 0 || 0 == rc)
HGOTO_ERROR(H5E_REFERENCE, H5E_LINKCOUNT, FAIL, "dereferencing deleted object")
/* Construct a group location for opening the object */
H5G_name_reset(&path);
loc.oloc = &oloc;
loc.path = &path;
/* Open the object */
switch(obj_type) {
case H5O_TYPE_GROUP:
{
H5G_t *group; /* Pointer to group to open */
if(NULL == (group = H5G_open(&loc, dxpl_id)))
HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, FAIL, "not found")
/* Create an atom for the group */
if((ret_value = H5I_register(H5I_GROUP, group, app_ref)) < 0) {
H5G_close(group);
HGOTO_ERROR(H5E_SYM, H5E_CANTREGISTER, FAIL, "can't register group")
} /* end if */
} /* end case */
break;
case H5O_TYPE_NAMED_DATATYPE:
{
H5T_t *type; /* Pointer to datatype to open */
if(NULL == (type = H5T_open(&loc, dxpl_id)))
HGOTO_ERROR(H5E_DATATYPE, H5E_NOTFOUND, FAIL, "not found")
/* Create an atom for the datatype */
if((ret_value = H5I_register(H5I_DATATYPE, type, app_ref)) < 0) {
H5T_close(type);
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREGISTER, FAIL, "can't register datatype")
} /* end if */
} /* end case */
break;
case H5O_TYPE_DATASET:
{
H5D_t *dset; /* Pointer to dataset to open */
/* Open the dataset */
if(NULL == (dset = H5D_open(&loc, oapl_id, dxpl_id)))
HGOTO_ERROR(H5E_DATASET, H5E_NOTFOUND, FAIL, "not found")
/* Create an atom for the dataset */
if((ret_value = H5I_register(H5I_DATASET, dset, app_ref)) < 0) {
H5D_close(dset);
HGOTO_ERROR(H5E_DATASET, H5E_CANTREGISTER, FAIL, "can't register dataset")
} /* end if */
} /* end case */
break;
case H5O_TYPE_UNKNOWN:
case H5O_TYPE_NTYPES:
default:
HGOTO_ERROR(H5E_REFERENCE, H5E_BADTYPE, FAIL, "can't identify type of object referenced")
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5R_dereference() */
/*-------------------------------------------------------------------------- /*--------------------------------------------------------------------------
NAME NAME
@ -601,99 +161,30 @@ H5Rdereference2(hid_t obj_id, hid_t oapl_id, H5R_type_t ref_type, const void *_r
H5TRACE4("i", "iiRt*x", obj_id, oapl_id, ref_type, _ref); H5TRACE4("i", "iiRt*x", obj_id, oapl_id, ref_type, _ref);
/* Check args */ /* Check args */
if(H5G_loc(obj_id, &loc) < 0) if (H5G_loc(obj_id, &loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location") HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location")
if(oapl_id < 0) if (oapl_id < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list") HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list")
if(ref_type <= H5R_BADTYPE || ref_type >= H5R_MAXTYPE) if (ref_type <= H5R_BADTYPE || ref_type >= H5R_MAXTYPE)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference type") HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference type")
if(_ref == NULL) if (_ref == NULL)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference pointer") HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference pointer")
/* Verify access property list and get correct dxpl */ /* Verify access property list and get correct dxpl */
if(H5P_verify_apl_and_dxpl(&oapl_id, H5P_CLS_DACC, &dxpl_id, obj_id, FALSE) < 0) if (H5P_verify_apl_and_dxpl(&oapl_id, H5P_CLS_DACC, &dxpl_id, obj_id, FALSE) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTSET, FAIL, "can't set access and transfer property lists") HGOTO_ERROR(H5E_REFERENCE, H5E_CANTSET, FAIL, "can't set access and transfer property lists")
/* Get the file pointer from the entry */ /* Get the file pointer from the entry */
file = loc.oloc->file; file = loc.oloc->file;
/* Create reference */ /* Create reference */
if((ret_value = H5R_dereference(file, oapl_id, dxpl_id, ref_type, _ref, TRUE)) < 0) if ((ret_value = H5R_dereference(file, oapl_id, dxpl_id, ref_type, _ref, TRUE)) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTINIT, FAIL, "unable to dereference object") HGOTO_ERROR(H5E_REFERENCE, H5E_CANTINIT, FAIL, "unable to dereference object")
done: done:
FUNC_LEAVE_API(ret_value) FUNC_LEAVE_API(ret_value)
} /* end H5Rdereference2() */ } /* end H5Rdereference2() */
/*--------------------------------------------------------------------------
NAME
H5R_get_region
PURPOSE
Retrieves a dataspace with the region pointed to selected.
USAGE
H5S_t *H5R_get_region(file, ref_type, ref)
H5F_t *file; IN: File the object being dereferenced is within
void *ref; IN: Reference to open.
RETURNS
Pointer to the dataspace on success, NULL on failure
DESCRIPTION
Given a reference to some object, creates a copy of the dataset pointed
to's dataspace and defines a selection in the copy which is the region
pointed to.
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
static H5S_t *
H5R_get_region(H5F_t *file, hid_t dxpl_id, const void *_ref)
{
H5O_loc_t oloc; /* Object location */
const uint8_t *p; /* Pointer to OID to store */
H5HG_t hobjid; /* Heap object ID */
uint8_t *buf = NULL; /* Buffer to store serialized selection in */
H5S_t *ret_value;
FUNC_ENTER_NOAPI_NOINIT
HDassert(_ref);
HDassert(file);
/* Initialize the object location */
H5O_loc_reset(&oloc);
oloc.file = file;
/* Get the heap ID for the dataset region */
p = (const uint8_t *)_ref;
H5F_addr_decode(oloc.file, &p, &(hobjid.addr));
UINT32DECODE(p, hobjid.idx);
/* Get the dataset region from the heap (allocate inside routine) */
if((buf = (uint8_t *)H5HG_read(oloc.file, dxpl_id, &hobjid, NULL, NULL)) == NULL)
HGOTO_ERROR(H5E_REFERENCE, H5E_READERROR, NULL, "Unable to read dataset region information")
/* Get the object oid for the dataset */
p = buf;
H5F_addr_decode(oloc.file, &p, &(oloc.addr));
/* Open and copy the dataset's dataspace */
if((ret_value = H5S_read(&oloc, dxpl_id)) == NULL)
HGOTO_ERROR(H5E_DATASPACE, H5E_NOTFOUND, NULL, "not found")
/* Unserialize the selection */
if(H5S_SELECT_DESERIALIZE(&ret_value, &p) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTDECODE, NULL, "can't deserialize selection")
done:
/* Free the buffer allocated in H5HG_read() */
if(buf)
H5MM_xfree(buf);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5R_get_region() */
/*-------------------------------------------------------------------------- /*--------------------------------------------------------------------------
NAME NAME
@ -729,111 +220,25 @@ H5Rget_region(hid_t id, H5R_type_t ref_type, const void *ref)
H5TRACE3("i", "iRt*x", id, ref_type, ref); H5TRACE3("i", "iRt*x", id, ref_type, ref);
/* Check args */ /* Check args */
if(H5G_loc(id, &loc) < 0) if (H5G_loc(id, &loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location") HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location")
if(ref_type != H5R_DATASET_REGION) if (ref_type != H5R_DATASET_REGION)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference type") HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference type")
if(ref == NULL) if (ref == NULL)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference pointer") HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference pointer")
/* Get the dataspace with the correct region selected */ /* Get the dataspace with the correct region selected */
if((space = H5R_get_region(loc.oloc->file, H5AC_ind_read_dxpl_id, ref)) == NULL) if ((space = H5R_get_region(loc.oloc->file, H5AC_ind_read_dxpl_id, ref)) == NULL)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTCREATE, FAIL, "unable to create dataspace") HGOTO_ERROR(H5E_REFERENCE, H5E_CANTCREATE, FAIL, "unable to create dataspace")
/* Atomize */ /* Atomize */
if((ret_value = H5I_register(H5I_DATASPACE, space, TRUE)) < 0) if ((ret_value = H5I_register(H5I_DATASPACE, space, TRUE)) < 0)
HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to register dataspace atom") HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to register dataspace atom")
done: done:
FUNC_LEAVE_API(ret_value) FUNC_LEAVE_API(ret_value)
} /* end H5Rget_region() */ } /* end H5Rget_region() */
/*--------------------------------------------------------------------------
NAME
H5R_get_obj_type
PURPOSE
Retrieves the type of object that an object reference points to
USAGE
H5O_type_t H5R_get_obj_type(file, ref_type, ref)
H5F_t *file; IN: File the object being dereferenced is within
H5R_type_t ref_type; IN: Type of reference to query
void *ref; IN: Reference to query.
RETURNS
Success: An object type defined in H5Gpublic.h
Failure: H5G_UNKNOWN
DESCRIPTION
Given a reference to some object, this function returns the type of object
pointed to.
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
herr_t
H5R_get_obj_type(H5F_t *file, hid_t dxpl_id, H5R_type_t ref_type,
const void *_ref, H5O_type_t *obj_type)
{
H5O_loc_t oloc; /* Object location */
unsigned rc; /* Reference count of object */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
HDassert(file);
HDassert(_ref);
/* Initialize the symbol table entry */
H5O_loc_reset(&oloc);
oloc.file = file;
switch(ref_type) {
case H5R_OBJECT:
/* Get the object oid */
oloc.addr = *(const hobj_ref_t *)_ref; /* Only object references currently supported */
break;
case H5R_DATASET_REGION:
{
H5HG_t hobjid; /* Heap object ID */
const uint8_t *p; /* Pointer to reference to decode */
uint8_t *buf; /* Buffer to store serialized selection in */
/* Get the heap ID for the dataset region */
p = (const uint8_t *)_ref;
H5F_addr_decode(oloc.file, &p, &(hobjid.addr));
UINT32DECODE(p, hobjid.idx);
/* Get the dataset region from the heap (allocate inside routine) */
if((buf = (uint8_t *)H5HG_read(oloc.file, dxpl_id, &hobjid, NULL, NULL)) == NULL)
HGOTO_ERROR(H5E_REFERENCE, H5E_READERROR, FAIL, "Unable to read dataset region information")
/* Get the object oid for the dataset */
p = buf;
H5F_addr_decode(oloc.file, &p, &(oloc.addr));
/* Free the buffer allocated in H5HG_read() */
H5MM_xfree(buf);
} /* end case */
break;
case H5R_BADTYPE:
case H5R_MAXTYPE:
default:
HDassert("unknown reference type" && 0);
HGOTO_ERROR(H5E_REFERENCE, H5E_UNSUPPORTED, FAIL, "internal error (unknown reference type)")
} /* end switch */
/* Get the # of links for object, and its type */
/* (To check to make certain that this object hasn't been deleted since the reference was created) */
if(H5O_get_rc_and_type(&oloc, dxpl_id, &rc, obj_type) < 0 || 0 == rc)
HGOTO_ERROR(H5E_REFERENCE, H5E_LINKCOUNT, FAIL, "dereferencing deleted object")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5R_get_obj_type() */
/*-------------------------------------------------------------------------- /*--------------------------------------------------------------------------
NAME NAME
@ -869,121 +274,21 @@ H5Rget_obj_type2(hid_t id, H5R_type_t ref_type, const void *ref,
H5TRACE4("e", "iRt*x*Ot", id, ref_type, ref, obj_type); H5TRACE4("e", "iRt*x*Ot", id, ref_type, ref, obj_type);
/* Check args */ /* Check args */
if(H5G_loc(id, &loc) < 0) if (H5G_loc(id, &loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location") HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location")
if(ref_type <= H5R_BADTYPE || ref_type >= H5R_MAXTYPE) if (ref_type <= H5R_BADTYPE || ref_type >= H5R_MAXTYPE)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference type") HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference type")
if(ref == NULL) if (ref == NULL)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference pointer") HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference pointer")
/* Get the object information */ /* Get the object information */
if(H5R_get_obj_type(loc.oloc->file, H5AC_ind_read_dxpl_id, ref_type, ref, obj_type) < 0) if (H5R_get_obj_type(loc.oloc->file, H5AC_ind_read_dxpl_id, ref_type, ref, obj_type) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTINIT, FAIL, "unable to determine object type") HGOTO_ERROR(H5E_REFERENCE, H5E_CANTINIT, FAIL, "unable to determine object type")
done: done:
FUNC_LEAVE_API(ret_value) FUNC_LEAVE_API(ret_value)
} /* end H5Rget_obj_type2() */ } /* end H5Rget_obj_type2() */
/*--------------------------------------------------------------------------
NAME
H5R_get_name
PURPOSE
Internal routine to determine a name for the object referenced
USAGE
ssize_t H5R_get_name(f, dxpl_id, ref_type, ref, name, size)
H5F_t *f; IN: Pointer to the file that the reference is pointing
into
hid_t lapl_id; IN: LAPL to use for operation
hid_t dxpl_id; IN: DXPL to use for operation
hid_t id; IN: Location ID given for reference
H5R_type_t ref_type; IN: Type of reference
void *ref; IN: Reference to query.
char *name; OUT: Buffer to place name of object referenced
size_t size; IN: Size of name buffer
RETURNS
Non-negative length of the path on success, Negative on failure
DESCRIPTION
Given a reference to some object, determine a path to the object
referenced in the file.
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
This may not be the only path to that object.
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
static ssize_t
H5R_get_name(H5F_t *f, hid_t lapl_id, hid_t dxpl_id, hid_t id, H5R_type_t ref_type,
const void *_ref, char *name, size_t size)
{
hid_t file_id = H5I_INVALID_HID; /* ID for file that the reference is in */
H5O_loc_t oloc; /* Object location describing object for reference */
ssize_t ret_value = -1; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* Check args */
HDassert(f);
HDassert(_ref);
/* Initialize the object location */
H5O_loc_reset(&oloc);
oloc.file = f;
/* Get address for reference */
switch(ref_type) {
case H5R_OBJECT:
oloc.addr = *(const hobj_ref_t *)_ref;
break;
case H5R_DATASET_REGION:
{
H5HG_t hobjid; /* Heap object ID */
uint8_t *buf; /* Buffer to store serialized selection in */
const uint8_t *p; /* Pointer to OID to store */
/* Get the heap ID for the dataset region */
p = (const uint8_t *)_ref;
H5F_addr_decode(oloc.file, &p, &(hobjid.addr));
UINT32DECODE(p, hobjid.idx);
/* Get the dataset region from the heap (allocate inside routine) */
if((buf = (uint8_t *)H5HG_read(oloc.file, dxpl_id, &hobjid, NULL, NULL)) == NULL)
HGOTO_ERROR(H5E_REFERENCE, H5E_READERROR, FAIL, "Unable to read dataset region information")
/* Get the object oid for the dataset */
p = buf;
H5F_addr_decode(oloc.file, &p, &(oloc.addr));
/* Free the buffer allocated in H5HG_read() */
H5MM_xfree(buf);
} /* end case */
break;
case H5R_BADTYPE:
case H5R_MAXTYPE:
default:
HDassert("unknown reference type" && 0);
HGOTO_ERROR(H5E_REFERENCE, H5E_UNSUPPORTED, FAIL, "internal error (unknown reference type)")
} /* end switch */
/* Retrieve file ID for name search */
if((file_id = H5I_get_file_id(id, FALSE)) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't retrieve file ID")
/* Get name, length, etc. */
if((ret_value = H5G_get_name_by_addr(file_id, lapl_id, dxpl_id, &oloc, name, size)) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't determine name")
done:
/* Close file ID used for search */
if(file_id > 0 && H5I_dec_ref(file_id) < 0)
HDONE_ERROR(H5E_REFERENCE, H5E_CANTDEC, FAIL, "can't decrement ref count of temp ID")
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5R_get_name() */
/*-------------------------------------------------------------------------- /*--------------------------------------------------------------------------
NAME NAME
@ -1030,18 +335,18 @@ H5Rget_name(hid_t id, H5R_type_t ref_type, const void *_ref, char *name,
H5TRACE5("Zs", "iRt*x*sz", id, ref_type, _ref, name, size); H5TRACE5("Zs", "iRt*x*sz", id, ref_type, _ref, name, size);
/* Check args */ /* Check args */
if(H5G_loc(id, &loc) < 0) if (H5G_loc(id, &loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location") HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location")
if(ref_type <= H5R_BADTYPE || ref_type >= H5R_MAXTYPE) if (ref_type <= H5R_BADTYPE || ref_type >= H5R_MAXTYPE)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference type") HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference type")
if(_ref == NULL) if (_ref == NULL)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference pointer") HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference pointer")
/* Get the file pointer from the entry */ /* Get the file pointer from the entry */
file = loc.oloc->file; file = loc.oloc->file;
/* Get name */ /* Get name */
if((ret_value = H5R_get_name(file, H5P_DEFAULT, H5AC_ind_read_dxpl_id, id, ref_type, _ref, name, size)) < 0) if ((ret_value = H5R_get_name(file, H5P_DEFAULT, H5AC_ind_read_dxpl_id, id, ref_type, _ref, name, size)) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTINIT, FAIL, "unable to determine object path") HGOTO_ERROR(H5E_REFERENCE, H5E_CANTINIT, FAIL, "unable to determine object path")
done: done:

118
src/H5Rdeprec.c
View File

@ -13,11 +13,9 @@
/*------------------------------------------------------------------------- /*-------------------------------------------------------------------------
* *
* Created: H5Rdeprec.c * Created: H5Rdeprec.c
* September 13 2007
* Quincey Koziol <koziol@hdfgroup.org>
* *
* Purpose: Deprecated functions from the H5R interface. These * Purpose: Deprecated functions from the H5R interface. These
* functions are here for compatibility purposes and may be * functions are here for compatibility purposes and may be
* removed in the future. Applications should switch to the * removed in the future. Applications should switch to the
* newer APIs. * newer APIs.
@ -35,13 +33,16 @@
/***********/ /***********/
/* Headers */ /* Headers */
/***********/ /***********/
#include "H5private.h" /* Generic Functions */ /* Public headers needed by this file */
#include "H5ACprivate.h" /* Metadata cache */ #include "H5Ppublic.h" /* Property lists */
#include "H5Eprivate.h" /* Error handling */
#include "H5Gprivate.h" /* Groups */ /* Private headers needed by this file */
#include "H5Oprivate.h" /* Object headers */ #include "H5private.h" /* Generic Functions */
#include "H5Rpkg.h" /* References */ #include "H5ACprivate.h" /* Metadata cache */
#include "H5Ppublic.h" /* for using H5P_DATASET_ACCESS_DEFAULT */ #include "H5Eprivate.h" /* Error handling */
#include "H5Gprivate.h" /* Groups */
#include "H5Oprivate.h" /* Object headers */
#include "H5Rpkg.h" /* References */
/****************/ /****************/
@ -81,29 +82,22 @@
#ifndef H5_NO_DEPRECATED_SYMBOLS #ifndef H5_NO_DEPRECATED_SYMBOLS
/*-------------------------------------------------------------------------- /*-------------------------------------------------------------------------
NAME * Function: H5Rget_obj_type1
H5Rget_obj_type1 *
PURPOSE * Purpose: Retrieves the type of the object that an object points to.
Retrieves the type of object that an object reference points to *
USAGE * Parameters:
H5G_obj_t H5Rget_obj_type1(id, ref_type, ref) * id IN: Dataset reference object is in or location ID of
hid_t id; IN: Dataset reference object is in or location ID of * object that the dataset is located within
object that the dataset is located within. * ref_type IN: Type of reference to query
H5R_type_t ref_type; IN: Type of reference to query * ref IN: Reference to query
void *ref; IN: Reference to query. *
* Return: Success: An object type (as defined in H5Gpublic.h)
RETURNS * Failure: H5G_UNKNOWN
Success: An object type defined in H5Gpublic.h *
Failure: H5G_UNKNOWN *-------------------------------------------------------------------------
DESCRIPTION */
Given a reference to some object, this function returns the type of object
pointed to.
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
H5G_obj_t H5G_obj_t
H5Rget_obj_type1(hid_t id, H5R_type_t ref_type, const void *ref) H5Rget_obj_type1(hid_t id, H5R_type_t ref_type, const void *ref)
{ {
@ -115,16 +109,16 @@ H5Rget_obj_type1(hid_t id, H5R_type_t ref_type, const void *ref)
H5TRACE3("Go", "iRt*x", id, ref_type, ref); H5TRACE3("Go", "iRt*x", id, ref_type, ref);
/* Check args */ /* Check args */
if(H5G_loc(id, &loc) < 0) if (H5G_loc(id, &loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5G_UNKNOWN, "not a location") HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5G_UNKNOWN, "not a location")
if(ref_type <= H5R_BADTYPE || ref_type >= H5R_MAXTYPE) if (ref_type <= H5R_BADTYPE || ref_type >= H5R_MAXTYPE)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5G_UNKNOWN, "invalid reference type") HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5G_UNKNOWN, "invalid reference type")
if(ref == NULL) if (ref == NULL)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5G_UNKNOWN, "invalid reference pointer") HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5G_UNKNOWN, "invalid reference pointer")
/* Get the object information */ /* Get the object information */
if(H5R_get_obj_type(loc.oloc->file, H5AC_ind_read_dxpl_id, ref_type, ref, &obj_type) < 0) if (H5R_get_obj_type(loc.oloc->file, H5AC_ind_read_dxpl_id, ref_type, ref, &obj_type) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTINIT, H5G_UNKNOWN, "unable to determine object type") HGOTO_ERROR(H5E_REFERENCE, H5E_CANTINIT, H5G_UNKNOWN, "unable to determine object type")
/* Set return value */ /* Set return value */
ret_value = H5G_map_obj_type(obj_type); ret_value = H5G_map_obj_type(obj_type);
@ -134,28 +128,22 @@ done:
} /* end H5Rget_obj_type1() */ } /* end H5Rget_obj_type1() */
/*-------------------------------------------------------------------------- /*-------------------------------------------------------------------------
NAME * Function: H5Rdereference1
H5Rdereference1 *
PURPOSE * Purpose: Opens the HDF5 object referenced.
Opens the HDF5 object referenced. *
USAGE * Parameters:
hid_t H5Rdereference1(ref) * id IN: Dataset reference object is in or location ID of
hid_t id; IN: Dataset reference object is in or location ID of * object that the dataset is located within
object that the dataset is located within. * ref_type IN: Type of reference to create
H5R_type_t ref_type; IN: Type of reference to create * ref IN: Reference to open
void *ref; IN: Reference to open. *
* Return: Success: Valid HDF5 ID
RETURNS * Failure: Negative
Valid ID on success, Negative on failure *
DESCRIPTION *-------------------------------------------------------------------------
Given a reference to some object, open that object and return an ID for */
that object.
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
hid_t hid_t
H5Rdereference1(hid_t obj_id, H5R_type_t ref_type, const void *_ref) H5Rdereference1(hid_t obj_id, H5R_type_t ref_type, const void *_ref)
{ {
@ -167,18 +155,18 @@ H5Rdereference1(hid_t obj_id, H5R_type_t ref_type, const void *_ref)
H5TRACE3("i", "iRt*x", obj_id, ref_type, _ref); H5TRACE3("i", "iRt*x", obj_id, ref_type, _ref);
/* Check args */ /* Check args */
if(H5G_loc(obj_id, &loc) < 0) if (H5G_loc(obj_id, &loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location") HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location")
if(ref_type <= H5R_BADTYPE || ref_type >= H5R_MAXTYPE) if (ref_type <= H5R_BADTYPE || ref_type >= H5R_MAXTYPE)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference type") HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference type")
if(_ref == NULL) if (_ref == NULL)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference pointer") HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference pointer")
/* Get the file pointer from the entry */ /* Get the file pointer from the entry */
file = loc.oloc->file; file = loc.oloc->file;
/* Create reference */ /* Create reference */
if((ret_value = H5R_dereference(file, H5P_DATASET_ACCESS_DEFAULT, H5AC_ind_read_dxpl_id, ref_type, _ref, TRUE)) < 0) if ((ret_value = H5R_dereference(file, H5P_DATASET_ACCESS_DEFAULT, H5AC_ind_read_dxpl_id, ref_type, _ref, TRUE)) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTINIT, FAIL, "unable dereference object") HGOTO_ERROR(H5E_REFERENCE, H5E_CANTINIT, FAIL, "unable dereference object")
done: done:

767
src/H5Rint.c Normal file
View File

@ -0,0 +1,767 @@
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/****************/
/* Module Setup */
/****************/
#include "H5Rmodule.h" /* This source code file is part of the H5R module */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5ACprivate.h" /* Metadata cache */
#include "H5Dprivate.h" /* Datasets */
#include "H5Eprivate.h" /* Error handling */
#include "H5Gprivate.h" /* Groups */
#include "H5HGprivate.h" /* Global Heaps */
#include "H5Iprivate.h" /* IDs */
#include "H5MMprivate.h" /* Memory management */
#include "H5Oprivate.h" /* Object headers */
#include "H5Rpkg.h" /* References */
#include "H5Sprivate.h" /* Dataspaces */
#include "H5Tprivate.h" /* Datatypes */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Local Prototypes */
/********************/
/*********************/
/* Package Variables */
/*********************/
/* Package initialization variable */
hbool_t H5_PKG_INIT_VAR = FALSE;
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/* Reference ID class
*
* NOTE: H5I_REFERENCE is not used by the library and has been deprecated
* with a tentative removal version of 1.12.0. (DER, July 2017)
*/
static const H5I_class_t H5I_REFERENCE_CLS[1] = {{
H5I_REFERENCE, /* ID class value */
0, /* Class flags */
0, /* # of reserved IDs for class */
NULL /* Callback routine for closing objects of this class */
}};
/* Flag indicating "top" of interface has been initialized */
static hbool_t H5R_top_package_initialize_s = FALSE;
/*--------------------------------------------------------------------------
NAME
H5R__init_package -- Initialize interface-specific information
USAGE
herr_t H5R__init_package()
RETURNS
Non-negative on success/Negative on failure
DESCRIPTION
Initializes any interface-specific data or routines.
--------------------------------------------------------------------------*/
herr_t
H5R__init_package(void)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* Initialize the atom group for the file IDs */
if (H5I_register_type(H5I_REFERENCE_CLS) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTINIT, FAIL, "unable to initialize interface")
/* Mark "top" of interface as initialized, too */
H5R_top_package_initialize_s = TRUE;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5R__init_package() */
/*--------------------------------------------------------------------------
NAME
H5R_top_term_package
PURPOSE
Terminate various H5R objects
USAGE
void H5R_top_term_package()
RETURNS
void
DESCRIPTION
Release IDs for the atom group, deferring full interface shutdown
until later (in H5R_term_package).
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
Can't report errors...
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
int
H5R_top_term_package(void)
{
int n = 0;
FUNC_ENTER_NOAPI_NOINIT_NOERR
if (H5R_top_package_initialize_s) {
if (H5I_nmembers(H5I_REFERENCE) > 0) {
(void)H5I_clear_type(H5I_REFERENCE, FALSE, FALSE);
n++;
}
/* Mark closed */
if (0 == n)
H5R_top_package_initialize_s = FALSE;
}
FUNC_LEAVE_NOAPI(n)
} /* end H5R_top_term_package() */
/*--------------------------------------------------------------------------
NAME
H5R_term_package
PURPOSE
Terminate various H5R objects
USAGE
void H5R_term_package()
RETURNS
void
DESCRIPTION
Release the atom group and any other resources allocated.
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
Can't report errors...
Finishes shutting down the interface, after H5R_top_term_package()
is called
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
int
H5R_term_package(void)
{
int n = 0;
FUNC_ENTER_NOAPI_NOINIT_NOERR
if (H5_PKG_INIT_VAR) {
/* Sanity checks */
HDassert(0 == H5I_nmembers(H5I_REFERENCE));
HDassert(FALSE == H5R_top_package_initialize_s);
/* Destroy the reference id group */
n += (H5I_dec_type_ref(H5I_REFERENCE) > 0);
/* Mark closed */
if (0 == n)
H5_PKG_INIT_VAR = FALSE;
}
FUNC_LEAVE_NOAPI(n)
} /* end H5R_term_package() */
/*--------------------------------------------------------------------------
NAME
H5R_create
PURPOSE
Creates a particular kind of reference for the user
USAGE
herr_t H5R_create(ref, loc, name, ref_type, space)
void *ref; OUT: Reference created
H5G_loc_t *loc; IN: File location used to locate object pointed to
const char *name; IN: Name of object at location LOC_ID of object
pointed to
H5R_type_t ref_type; IN: Type of reference to create
H5S_t *space; IN: Dataspace ID with selection, used for Dataset
Region references.
RETURNS
Non-negative on success/Negative on failure
DESCRIPTION
Creates a particular type of reference specified with REF_TYPE, in the
space pointed to by REF. The LOC_ID and NAME are used to locate the object
pointed to and the SPACE_ID is used to choose the region pointed to (for
Dataset Region references).
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
herr_t
H5R_create(void *_ref, H5G_loc_t *loc, const char *name, H5R_type_t ref_type, H5S_t *space, hid_t dxpl_id)
{
H5G_loc_t obj_loc; /* Group hier. location of object */
H5G_name_t path; /* Object group hier. path */
H5O_loc_t oloc; /* Object object location */
hbool_t obj_found = FALSE; /* Object location found */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
HDassert(_ref);
HDassert(loc);
HDassert(name);
HDassert(ref_type > H5R_BADTYPE && ref_type < H5R_MAXTYPE);
/* Set up object location to fill in */
obj_loc.oloc = &oloc;
obj_loc.path = &path;
H5G_loc_reset(&obj_loc);
/* Find the object */
if (H5G_loc_find(loc, name, &obj_loc, H5P_DEFAULT, dxpl_id) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_NOTFOUND, FAIL, "object not found")
obj_found = TRUE;
switch (ref_type) {
case H5R_OBJECT:
{
hobj_ref_t *ref = (hobj_ref_t *)_ref; /* Get pointer to correct type of reference struct */
*ref = obj_loc.oloc->addr;
break;
}
case H5R_DATASET_REGION:
{
H5HG_t hobjid; /* Heap object ID */
hdset_reg_ref_t *ref = (hdset_reg_ref_t *)_ref; /* Get pointer to correct type of reference struct */
hssize_t buf_size; /* Size of buffer needed to serialize selection */
uint8_t *p; /* Pointer to OID to store */
uint8_t *buf; /* Buffer to store serialized selection in */
unsigned heapid_found; /* Flag for non-zero heap ID found */
unsigned u; /* local index */
/* Set up information for dataset region */
/* Return any previous heap block to the free list if we are
* garbage collecting
*/
if (H5F_GC_REF(loc->oloc->file)) {
/* Check for an existing heap ID in the reference */
for (u = 0, heapid_found = 0, p = (uint8_t *)ref; u < H5R_DSET_REG_REF_BUF_SIZE; u++)
if (p[u] != 0) {
heapid_found = 1;
break;
}
if (heapid_found != 0) {
/* Return heap block to free list */
}
}
/* Zero the heap ID out, may leak heap space if user is re-using
* reference and doesn't have garbage collection turned on
*/
HDmemset(ref, 0, H5R_DSET_REG_REF_BUF_SIZE);
/* Get the amount of space required to serialize the selection */
if ((buf_size = H5S_SELECT_SERIAL_SIZE(space)) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTINIT, FAIL, "Invalid amount of space for serializing selection")
/* Increase buffer size to allow for the dataset OID */
buf_size += (hssize_t)sizeof(haddr_t);
/* Allocate the space to store the serialized information */
H5_CHECK_OVERFLOW(buf_size, hssize_t, size_t);
if (NULL == (buf = (uint8_t *)H5MM_malloc((size_t)buf_size)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed")
/* Serialize information for dataset OID into heap buffer */
p = (uint8_t *)buf;
H5F_addr_encode(loc->oloc->file, &p, obj_loc.oloc->addr);
/* Serialize the selection into heap buffer */
if (H5S_SELECT_SERIALIZE(space, &p) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTCOPY, FAIL, "Unable to serialize selection")
/* Save the serialized buffer for later */
H5_CHECK_OVERFLOW(buf_size, hssize_t, size_t);
if (H5HG_insert(loc->oloc->file, dxpl_id, (size_t)buf_size, buf, &hobjid) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_WRITEERROR, FAIL, "Unable to serialize selection")
/* Serialize the heap ID and index for storage in the file */
p = (uint8_t *)ref;
H5F_addr_encode(loc->oloc->file, &p, hobjid.addr);
UINT32ENCODE(p, hobjid.idx);
/* Free the buffer we serialized data in */
H5MM_xfree(buf);
break;
} /* end case H5R_DATASET_REGION */
case H5R_BADTYPE:
case H5R_MAXTYPE:
default:
HDassert("unknown reference type" && 0);
HGOTO_ERROR(H5E_REFERENCE, H5E_UNSUPPORTED, FAIL, "internal error (unknown reference type)")
} /* end switch */
done:
if (obj_found)
H5G_loc_free(&obj_loc);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5R_create() */
/*--------------------------------------------------------------------------
NAME
H5R_dereference
PURPOSE
Opens the HDF5 object referenced.
USAGE
hid_t H5R_dereference(ref)
H5F_t *file; IN: File the object being dereferenced is within
H5R_type_t ref_type; IN: Type of reference
void *ref; IN: Reference to open.
RETURNS
Valid ID on success, Negative on failure
DESCRIPTION
Given a reference to some object, open that object and return an ID for
that object.
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
Currently only set up to work with references to datasets
EXAMPLES
REVISION LOG
Raymond Lu
13 July 2011
I added the OAPL_ID parameter for the object being referenced. It only
supports dataset access property list currently.
M. Scot Breitenfeld
3 March 2015
Added a check for undefined reference pointer.
--------------------------------------------------------------------------*/
hid_t
H5R_dereference(H5F_t *file, hid_t oapl_id, hid_t dxpl_id, H5R_type_t ref_type, const void *_ref, hbool_t app_ref)
{
H5O_loc_t oloc; /* Object location */
H5G_name_t path; /* Path of object */
H5G_loc_t loc; /* Group location */
unsigned rc; /* Reference count of object */
H5O_type_t obj_type; /* Type of object */
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
HDassert(_ref);
HDassert(ref_type > H5R_BADTYPE && ref_type < H5R_MAXTYPE);
HDassert(file);
/* Initialize the object location */
H5O_loc_reset(&oloc);
oloc.file = file;
switch (ref_type) {
case H5R_OBJECT:
{
oloc.addr = *(const hobj_ref_t *)_ref; /* Only object references currently supported */
if (!H5F_addr_defined(oloc.addr) || oloc.addr == 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "Undefined reference pointer")
break;
}
case H5R_DATASET_REGION:
{
H5HG_t hobjid; /* Heap object ID */
uint8_t *buf; /* Buffer to store serialized selection in */
const uint8_t *p; /* Pointer to OID to store */
/* Get the heap ID for the dataset region */
p = (const uint8_t *)_ref;
H5F_addr_decode(oloc.file, &p, &(hobjid.addr));
UINT32DECODE(p, hobjid.idx);
if (!H5F_addr_defined(hobjid.addr) || hobjid.addr == 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "Undefined reference pointer")
/* Get the dataset region from the heap (allocate inside routine) */
if (NULL == (buf = (uint8_t *)H5HG_read(oloc.file, dxpl_id, &hobjid, NULL, NULL)))
HGOTO_ERROR(H5E_REFERENCE, H5E_READERROR, FAIL, "Unable to read dataset region information")
/* Get the object oid for the dataset */
p = buf;
H5F_addr_decode(oloc.file, &p, &(oloc.addr));
/* Free the buffer allocated in H5HG_read() */
H5MM_xfree(buf);
break;
} /* end case H5R_DATASET_REGION */
case H5R_BADTYPE:
case H5R_MAXTYPE:
default:
HDassert("unknown reference type" && 0);
HGOTO_ERROR(H5E_REFERENCE, H5E_UNSUPPORTED, FAIL, "internal error (unknown reference type)")
} /* end switch */
/* Get the # of links for object, and its type
* (To check to make certain that this object hasn't been deleted
* since the reference was created)
*/
if (H5O_get_rc_and_type(&oloc, dxpl_id, &rc, &obj_type) < 0 || 0 == rc)
HGOTO_ERROR(H5E_REFERENCE, H5E_LINKCOUNT, FAIL, "dereferencing deleted object")
/* Construct a group location for opening the object */
H5G_name_reset(&path);
loc.oloc = &oloc;
loc.path = &path;
/* Open the object */
switch (obj_type) {
case H5O_TYPE_GROUP:
{
H5G_t *group; /* Pointer to group to open */
if (NULL == (group = H5G_open(&loc, dxpl_id)))
HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, FAIL, "not found")
/* Create an atom for the group */
if ((ret_value = H5I_register(H5I_GROUP, group, app_ref)) < 0) {
H5G_close(group);
HGOTO_ERROR(H5E_SYM, H5E_CANTREGISTER, FAIL, "can't register group")
}
break;
}
case H5O_TYPE_NAMED_DATATYPE:
{
H5T_t *type; /* Pointer to datatype to open */
if (NULL == (type = H5T_open(&loc, dxpl_id)))
HGOTO_ERROR(H5E_DATATYPE, H5E_NOTFOUND, FAIL, "not found")
/* Create an atom for the datatype */
if ((ret_value = H5I_register(H5I_DATATYPE, type, app_ref)) < 0) {
H5T_close(type);
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREGISTER, FAIL, "can't register datatype")
}
break;
}
case H5O_TYPE_DATASET:
{
H5D_t *dset; /* Pointer to dataset to open */
/* Open the dataset */
if (NULL == (dset = H5D_open(&loc, oapl_id, dxpl_id)))
HGOTO_ERROR(H5E_DATASET, H5E_NOTFOUND, FAIL, "not found")
/* Create an atom for the dataset */
if ((ret_value = H5I_register(H5I_DATASET, dset, app_ref)) < 0) {
H5D_close(dset);
HGOTO_ERROR(H5E_DATASET, H5E_CANTREGISTER, FAIL, "can't register dataset")
}
break;
}
case H5O_TYPE_UNKNOWN:
case H5O_TYPE_NTYPES:
default:
HGOTO_ERROR(H5E_REFERENCE, H5E_BADTYPE, FAIL, "can't identify type of object referenced")
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5R_dereference() */
/*--------------------------------------------------------------------------
NAME
H5R_get_region
PURPOSE
Retrieves a dataspace with the region pointed to selected.
USAGE
H5S_t *H5R_get_region(file, ref_type, ref)
H5F_t *file; IN: File the object being dereferenced is within
void *ref; IN: Reference to open.
RETURNS
Pointer to the dataspace on success, NULL on failure
DESCRIPTION
Given a reference to some object, creates a copy of the dataset pointed
to's dataspace and defines a selection in the copy which is the region
pointed to.
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
H5S_t *
H5R_get_region(H5F_t *file, hid_t dxpl_id, const void *_ref)
{
H5O_loc_t oloc; /* Object location */
const uint8_t *p; /* Pointer to OID to store */
H5HG_t hobjid; /* Heap object ID */
uint8_t *buf = NULL; /* Buffer to store serialized selection in */
H5S_t *ret_value;
FUNC_ENTER_NOAPI_NOINIT
HDassert(_ref);
HDassert(file);
/* Initialize the object location */
H5O_loc_reset(&oloc);
oloc.file = file;
/* Get the heap ID for the dataset region */
p = (const uint8_t *)_ref;
H5F_addr_decode(oloc.file, &p, &(hobjid.addr));
UINT32DECODE(p, hobjid.idx);
/* Get the dataset region from the heap (allocate inside routine) */
if ((buf = (uint8_t *)H5HG_read(oloc.file, dxpl_id, &hobjid, NULL, NULL)) == NULL)
HGOTO_ERROR(H5E_REFERENCE, H5E_READERROR, NULL, "Unable to read dataset region information")
/* Get the object oid for the dataset */
p = buf;
H5F_addr_decode(oloc.file, &p, &(oloc.addr));
/* Open and copy the dataset's dataspace */
if ((ret_value = H5S_read(&oloc, dxpl_id)) == NULL)
HGOTO_ERROR(H5E_DATASPACE, H5E_NOTFOUND, NULL, "not found")
/* Unserialize the selection */
if (H5S_SELECT_DESERIALIZE(&ret_value, &p) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTDECODE, NULL, "can't deserialize selection")
done:
/* Free the buffer allocated in H5HG_read() */
if (buf)
H5MM_xfree(buf);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5R_get_region() */
/*--------------------------------------------------------------------------
NAME
H5R_get_obj_type
PURPOSE
Retrieves the type of object that an object reference points to
USAGE
H5O_type_t H5R_get_obj_type(file, ref_type, ref)
H5F_t *file; IN: File the object being dereferenced is within
H5R_type_t ref_type; IN: Type of reference to query
void *ref; IN: Reference to query.
RETURNS
Success: An object type defined in H5Gpublic.h
Failure: H5G_UNKNOWN
DESCRIPTION
Given a reference to some object, this function returns the type of object
pointed to.
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
herr_t
H5R_get_obj_type(H5F_t *file, hid_t dxpl_id, H5R_type_t ref_type,
const void *_ref, H5O_type_t *obj_type)
{
H5O_loc_t oloc; /* Object location */
unsigned rc; /* Reference count of object */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
HDassert(file);
HDassert(_ref);
/* Initialize the symbol table entry */
H5O_loc_reset(&oloc);
oloc.file = file;
switch (ref_type) {
case H5R_OBJECT:
{
/* Get the object oid */
oloc.addr = *(const hobj_ref_t *)_ref; /* Only object references currently supported */
break;
}
case H5R_DATASET_REGION:
{
H5HG_t hobjid; /* Heap object ID */
const uint8_t *p; /* Pointer to reference to decode */
uint8_t *buf; /* Buffer to store serialized selection in */
/* Get the heap ID for the dataset region */
p = (const uint8_t *)_ref;
H5F_addr_decode(oloc.file, &p, &(hobjid.addr));
UINT32DECODE(p, hobjid.idx);
/* Get the dataset region from the heap (allocate inside routine) */
if ((buf = (uint8_t *)H5HG_read(oloc.file, dxpl_id, &hobjid, NULL, NULL)) == NULL)
HGOTO_ERROR(H5E_REFERENCE, H5E_READERROR, FAIL, "Unable to read dataset region information")
/* Get the object oid for the dataset */
p = buf;
H5F_addr_decode(oloc.file, &p, &(oloc.addr));
/* Free the buffer allocated in H5HG_read() */
H5MM_xfree(buf);
break;
}
case H5R_BADTYPE:
case H5R_MAXTYPE:
default:
HDassert("unknown reference type" && 0);
HGOTO_ERROR(H5E_REFERENCE, H5E_UNSUPPORTED, FAIL, "internal error (unknown reference type)")
} /* end switch */
/* Get the # of links for object, and its type */
/* (To check to make certain that this object hasn't been deleted since the reference was created) */
if (H5O_get_rc_and_type(&oloc, dxpl_id, &rc, obj_type) < 0 || 0 == rc)
HGOTO_ERROR(H5E_REFERENCE, H5E_LINKCOUNT, FAIL, "dereferencing deleted object")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5R_get_obj_type() */
/*--------------------------------------------------------------------------
NAME
H5R_get_name
PURPOSE
Internal routine to determine a name for the object referenced
USAGE
ssize_t H5R_get_name(f, dxpl_id, ref_type, ref, name, size)
H5F_t *f; IN: Pointer to the file that the reference is pointing
into
hid_t lapl_id; IN: LAPL to use for operation
hid_t dxpl_id; IN: DXPL to use for operation
hid_t id; IN: Location ID given for reference
H5R_type_t ref_type; IN: Type of reference
void *ref; IN: Reference to query.
char *name; OUT: Buffer to place name of object referenced
size_t size; IN: Size of name buffer
RETURNS
Non-negative length of the path on success, Negative on failure
DESCRIPTION
Given a reference to some object, determine a path to the object
referenced in the file.
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
This may not be the only path to that object.
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
ssize_t
H5R_get_name(H5F_t *f, hid_t lapl_id, hid_t dxpl_id, hid_t id, H5R_type_t ref_type,
const void *_ref, char *name, size_t size)
{
hid_t file_id = H5I_INVALID_HID; /* ID for file that the reference is in */
H5O_loc_t oloc; /* Object location describing object for reference */
ssize_t ret_value = -1; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* Check args */
HDassert(f);
HDassert(_ref);
/* Initialize the object location */
H5O_loc_reset(&oloc);
oloc.file = f;
/* Get address for reference */
switch (ref_type) {
case H5R_OBJECT:
{
oloc.addr = *(const hobj_ref_t *)_ref;
break;
}
case H5R_DATASET_REGION:
{
H5HG_t hobjid; /* Heap object ID */
uint8_t *buf; /* Buffer to store serialized selection in */
const uint8_t *p; /* Pointer to OID to store */
/* Get the heap ID for the dataset region */
p = (const uint8_t *)_ref;
H5F_addr_decode(oloc.file, &p, &(hobjid.addr));
UINT32DECODE(p, hobjid.idx);
/* Get the dataset region from the heap (allocate inside routine) */
if ((buf = (uint8_t *)H5HG_read(oloc.file, dxpl_id, &hobjid, NULL, NULL)) == NULL)
HGOTO_ERROR(H5E_REFERENCE, H5E_READERROR, FAIL, "Unable to read dataset region information")
/* Get the object oid for the dataset */
p = buf;
H5F_addr_decode(oloc.file, &p, &(oloc.addr));
/* Free the buffer allocated in H5HG_read() */
H5MM_xfree(buf);
break;
}
case H5R_BADTYPE:
case H5R_MAXTYPE:
default:
HDassert("unknown reference type" && 0);
HGOTO_ERROR(H5E_REFERENCE, H5E_UNSUPPORTED, FAIL, "internal error (unknown reference type)")
} /* end switch */
/* Retrieve file ID for name search */
if ((file_id = H5I_get_file_id(id, FALSE)) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't retrieve file ID")
/* Get name, length, etc. */
if ((ret_value = H5G_get_name_by_addr(file_id, lapl_id, dxpl_id, &oloc, name, size)) < 0)
HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't determine name")
done:
/* Close file ID used for search */
if (file_id > 0 && H5I_dec_ref(file_id) < 0)
HDONE_ERROR(H5E_REFERENCE, H5E_CANTDEC, FAIL, "can't decrement ref count of temp ID")
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5R_get_name() */

11
src/H5Rmodule.h
View File

@ -10,13 +10,9 @@
* help@hdfgroup.org. * * help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* /* Purpose: This file contains declarations which define macros for the
* Programmer: Quincey Koziol <koziol@hdfgroup.org> * H5R package. Including this header means that the source file
* Saturday, September 12, 2015 * is part of the H5R package.
*
* Purpose: This file contains declarations which define macros for the
* H5R package. Including this header means that the source file
* is part of the H5R package.
*/ */
#ifndef _H5Rmodule_H #ifndef _H5Rmodule_H
#define _H5Rmodule_H #define _H5Rmodule_H
@ -31,4 +27,3 @@
#endif /* _H5Rmodule_H */ #endif /* _H5Rmodule_H */

14
src/H5Rpkg.h
View File

@ -11,11 +11,7 @@
* help@hdfgroup.org. * * help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* /* Purpose: This file contains declarations which are visible
* Programmer: Quincey Koziol <koziol@hdfgroup.org>
* Thursday, September 13, 2007
*
* Purpose: This file contains declarations which are visible
* only within the H5R package. Source files outside the * only within the H5R package. Source files outside the
* H5R package should include H5Rprivate.h instead. * H5R package should include H5Rprivate.h instead.
*/ */
@ -30,7 +26,6 @@
#include "H5Rprivate.h" #include "H5Rprivate.h"
/* Other private headers needed by this file */ /* Other private headers needed by this file */
#include "H5Fprivate.h" /* File access */
/**************************/ /**************************/
/* Package Private Macros */ /* Package Private Macros */
@ -51,12 +46,5 @@
/* Package Private Prototypes */ /* Package Private Prototypes */
/******************************/ /******************************/
/* General functions */
H5_DLL herr_t H5R_get_obj_type(H5F_t *file, hid_t dxpl_id, H5R_type_t ref_type,
const void *_ref, H5O_type_t *obj_type);
H5_DLL hid_t H5R_dereference(H5F_t *file, hid_t dapl_id, hid_t dxpl_id, H5R_type_t ref_type,
const void *_ref, hbool_t app_ref);
#endif /* _H5Rpkg_H */ #endif /* _H5Rpkg_H */

34
src/H5Rprivate.h
View File

@ -20,10 +20,40 @@
#include "H5Rpublic.h" #include "H5Rpublic.h"
/* Private headers needed by this file */ /* Private headers needed by this file */
#include "H5Fprivate.h" /* Files */
#include "H5Gprivate.h" /* Groups */
#include "H5Oprivate.h" /* Object headers */
#include "H5Sprivate.h" /* Dataspaces */
/* Internal data structures */
/* Private functions */ /**************************/
/* Library Private Macros */
/**************************/
/****************************/
/* Library Private Typedefs */
/****************************/
/*****************************/
/* Library Private Variables */
/*****************************/
/******************************/
/* Library Private Prototypes */
/******************************/
H5_DLL herr_t H5R_create(void *ref, H5G_loc_t *loc, const char *name,
H5R_type_t ref_type, H5S_t *space, hid_t dxpl_id);
H5_DLL H5S_t * H5R_get_region(H5F_t *file, hid_t dxpl_id, const void *_ref);
H5_DLL ssize_t H5R_get_name(H5F_t *file, hid_t lapl_id, hid_t dxpl_id, hid_t id,
H5R_type_t ref_type, const void *_ref, char *name, size_t size);
H5_DLL herr_t H5R_get_obj_type(H5F_t *file, hid_t dxpl_id, H5R_type_t ref_type,
const void *_ref, H5O_type_t *obj_type);
H5_DLL hid_t H5R_dereference(H5F_t *file, hid_t dapl_id, hid_t dxpl_id, H5R_type_t ref_type,
const void *_ref, hbool_t app_ref);
#endif /* _H5Rprivate_H */ #endif /* _H5Rprivate_H */

73
src/H5Rpublic.h
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@ -22,40 +22,59 @@
#include "H5Gpublic.h" #include "H5Gpublic.h"
#include "H5Ipublic.h" #include "H5Ipublic.h"
/* /*****************/
* Reference types allowed. /* Public Macros */
*/ /*****************/
typedef enum {
H5R_BADTYPE = (-1), /*invalid Reference Type */
H5R_OBJECT, /*Object reference */
H5R_DATASET_REGION, /*Dataset Region Reference */
H5R_MAXTYPE /*highest type (Invalid as true type) */
} H5R_type_t;
/* Note! Be careful with the sizes of the references because they should really /* Note! Be careful with the sizes of the references because they should really
* depend on the run-time values in the file. Unfortunately, the arrays need * depend on the run-time values in the file. Unfortunately, the arrays need
* to be defined at compile-time, so we have to go with the worst case sizes for * to be defined at compile-time, so we have to go with the worst case sizes
* them. -QAK * for them. -QAK
*/ */
#define H5R_OBJ_REF_BUF_SIZE sizeof(haddr_t) #define H5R_OBJ_REF_BUF_SIZE sizeof(haddr_t)
/* Object reference structure for user's code */
typedef haddr_t hobj_ref_t; /* Needs to be large enough to store largest haddr_t in a worst case machine (ie. 8 bytes currently) */
#define H5R_DSET_REG_REF_BUF_SIZE (sizeof(haddr_t)+4) /* 4 is used instead of sizeof(int) to permit portability between the Crays
/* 4 is used instead of sizeof(int) to permit portability between * and other machines (the heap ID is always encoded as an int32 anyway).
the Crays and other machines (the heap ID is always encoded as an int32 anyway) */
*/ #define H5R_DSET_REG_REF_BUF_SIZE (sizeof(haddr_t) + 4)
/* Dataset Region reference structure for user's code */
typedef unsigned char hdset_reg_ref_t[H5R_DSET_REG_REF_BUF_SIZE];/* Buffer to store heap ID and index */
/* Needs to be large enough to store largest haddr_t in a worst case machine (ie. 8 bytes currently) plus an int */
/* Publicly visible data structures */ /*******************/
/* Public Typedefs */
/*******************/
/* Reference types */
typedef enum H5R_type_t {
H5R_BADTYPE = (-1), /* Invalid Reference Type */
H5R_OBJECT, /* Object reference */
H5R_DATASET_REGION, /* Dataset Region Reference */
H5R_MAXTYPE /* Highest type (Invalid as true type) */
} H5R_type_t;
/* Object reference structure for user's code
* This needs to be large enough to store largest haddr_t on a worst case
* machine (8 bytes currently).
*/
typedef haddr_t hobj_ref_t;
/* Dataset Region reference structure for user's code
* (Buffer to store heap ID and index)
* This needs to be large enough to store largest haddr_t in a worst case
* machine (8 bytes currently) plus an int
*/
typedef unsigned char hdset_reg_ref_t[H5R_DSET_REG_REF_BUF_SIZE];
/********************/
/* Public Variables */
/********************/
/*********************/
/* Public Prototypes */
/*********************/
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
#endif #endif
/* Functions in H5R.c */
H5_DLL herr_t H5Rcreate(void *ref, hid_t loc_id, const char *name, H5_DLL herr_t H5Rcreate(void *ref, hid_t loc_id, const char *name,
H5R_type_t ref_type, hid_t space_id); H5R_type_t ref_type, hid_t space_id);
H5_DLL hid_t H5Rdereference2(hid_t obj_id, hid_t oapl_id, H5R_type_t ref_type, const void *ref); H5_DLL hid_t H5Rdereference2(hid_t obj_id, hid_t oapl_id, H5R_type_t ref_type, const void *ref);
@ -63,7 +82,7 @@ H5_DLL hid_t H5Rget_region(hid_t dataset, H5R_type_t ref_type, const void *ref);
H5_DLL herr_t H5Rget_obj_type2(hid_t id, H5R_type_t ref_type, const void *_ref, H5_DLL herr_t H5Rget_obj_type2(hid_t id, H5R_type_t ref_type, const void *_ref,
H5O_type_t *obj_type); H5O_type_t *obj_type);
H5_DLL ssize_t H5Rget_name(hid_t loc_id, H5R_type_t ref_type, const void *ref, H5_DLL ssize_t H5Rget_name(hid_t loc_id, H5R_type_t ref_type, const void *ref,
char *name/*out*/, size_t size); char *name /*out*/, size_t size);
/* Symbols defined for compatibility with previous versions of the HDF5 API. /* Symbols defined for compatibility with previous versions of the HDF5 API.
* *
@ -71,12 +90,6 @@ H5_DLL ssize_t H5Rget_name(hid_t loc_id, H5R_type_t ref_type, const void *ref,
*/ */
#ifndef H5_NO_DEPRECATED_SYMBOLS #ifndef H5_NO_DEPRECATED_SYMBOLS
/* Macros */
/* Typedefs */
/* Function prototypes */ /* Function prototypes */
H5_DLL H5G_obj_t H5Rget_obj_type1(hid_t id, H5R_type_t ref_type, const void *_ref); H5_DLL H5G_obj_t H5Rget_obj_type1(hid_t id, H5R_type_t ref_type, const void *_ref);
H5_DLL hid_t H5Rdereference1(hid_t obj_id, H5R_type_t ref_type, const void *ref); H5_DLL hid_t H5Rdereference1(hid_t obj_id, H5R_type_t ref_type, const void *ref);

4
src/H5Sprivate.h
View File

@ -17,6 +17,9 @@
#ifndef _H5Sprivate_H #ifndef _H5Sprivate_H
#define _H5Sprivate_H #define _H5Sprivate_H
/* Early typedefs to avoid circular dependencies */
typedef struct H5S_t H5S_t;
/* Include package's public header */ /* Include package's public header */
#include "H5Spublic.h" #include "H5Spublic.h"
@ -44,7 +47,6 @@
#define H5S_GET_SEQ_LIST_SORTED 0x0001 #define H5S_GET_SEQ_LIST_SORTED 0x0001
/* Forward references of package typedefs */ /* Forward references of package typedefs */
typedef struct H5S_t H5S_t;
typedef struct H5S_extent_t H5S_extent_t; typedef struct H5S_extent_t H5S_extent_t;
typedef struct H5S_pnt_node_t H5S_pnt_node_t; typedef struct H5S_pnt_node_t H5S_pnt_node_t;
typedef struct H5S_hyper_span_t H5S_hyper_span_t; typedef struct H5S_hyper_span_t H5S_hyper_span_t;

4
src/H5Tprivate.h
View File

@ -17,6 +17,9 @@
#ifndef _H5Tprivate_H #ifndef _H5Tprivate_H
#define _H5Tprivate_H #define _H5Tprivate_H
/* Early typedefs to avoid circular dependencies */
typedef struct H5T_t H5T_t;
/* Get package's public header */ /* Get package's public header */
#include "H5Tpublic.h" #include "H5Tpublic.h"
@ -45,7 +48,6 @@
#endif /* H5T_MODULE */ #endif /* H5T_MODULE */
/* Forward references of package typedefs (declared in H5Tpkg.h) */ /* Forward references of package typedefs (declared in H5Tpkg.h) */
typedef struct H5T_t H5T_t;
typedef struct H5T_stats_t H5T_stats_t; typedef struct H5T_stats_t H5T_stats_t;
typedef struct H5T_path_t H5T_path_t; typedef struct H5T_path_t H5T_path_t;

7
src/H5Zprivate.h
View File

@ -18,6 +18,9 @@
#ifndef _H5Zprivate_H #ifndef _H5Zprivate_H
#define _H5Zprivate_H #define _H5Zprivate_H
/* Early typedefs to avoid circular dependencies */
typedef struct H5Z_filter_info_t H5Z_filter_info_t;
/* Include package's public header */ /* Include package's public header */
#include "H5Zpublic.h" #include "H5Zpublic.h"
@ -49,7 +52,7 @@
/****************************/ /****************************/
/* Structure to store information about each filter's parameters */ /* Structure to store information about each filter's parameters */
typedef struct H5Z_filter_info_t { struct H5Z_filter_info_t {
H5Z_filter_t id; /*filter identification number */ H5Z_filter_t id; /*filter identification number */
unsigned flags; /*defn and invocation flags */ unsigned flags; /*defn and invocation flags */
char _name[H5Z_COMMON_NAME_LEN]; /*internal filter name */ char _name[H5Z_COMMON_NAME_LEN]; /*internal filter name */
@ -57,7 +60,7 @@ typedef struct H5Z_filter_info_t {
size_t cd_nelmts; /*number of elements in cd_values[] */ size_t cd_nelmts; /*number of elements in cd_values[] */
unsigned _cd_values[H5Z_COMMON_CD_VALUES]; /*internal client data values */ unsigned _cd_values[H5Z_COMMON_CD_VALUES]; /*internal client data values */
unsigned *cd_values; /*client data values */ unsigned *cd_values; /*client data values */
} H5Z_filter_info_t; };
/*****************************/ /*****************************/
/* Library-private Variables */ /* Library-private Variables */

2
src/Makefile.am
View File

@ -98,7 +98,7 @@ libhdf5_la_SOURCES= H5.c H5checksum.c H5dbg.c H5system.c H5timer.c H5trace.c \
H5Plapl.c H5Plcpl.c H5Pocpl.c H5Pocpypl.c H5Pstrcpl.c H5Ptest.c \ H5Plapl.c H5Plcpl.c H5Pocpl.c H5Pocpypl.c H5Pstrcpl.c H5Ptest.c \
H5PB.c \ H5PB.c \
H5PL.c H5PLint.c H5PLpath.c H5PLplugin_cache.c \ H5PL.c H5PLint.c H5PLpath.c H5PLplugin_cache.c \
H5R.c H5Rdeprec.c \ H5R.c H5Rint.c H5Rdeprec.c \
H5UC.c \ H5UC.c \
H5RS.c \ H5RS.c \
H5S.c H5Sall.c H5Sdbg.c H5Shyper.c H5Snone.c H5Spoint.c \ H5S.c H5Sall.c H5Sdbg.c H5Shyper.c H5Snone.c H5Spoint.c \