diff options
Diffstat (limited to 'src/H5R.c')
| -rw-r--r-- | src/H5R.c | 765 |
1 files changed, 35 insertions, 730 deletions
@@ -21,16 +21,13 @@ /***********/ /* 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 "H5Rpkg.h" /* References */ -#include "H5Sprivate.h" /* Dataspaces */ +#include "H5private.h" /* Generic Functions */ +#include "H5ACprivate.h" /* Metadata cache */ +#include "H5Eprivate.h" /* Error handling */ +#include "H5Gprivate.h" /* Groups */ +#include "H5Iprivate.h" /* IDs */ +#include "H5Rpkg.h" /* References */ +#include "H5Sprivate.h" /* Dataspaces */ /****************/ @@ -47,20 +44,11 @@ /* 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 initialization variable */ -hbool_t H5_PKG_INIT_VAR = FALSE; - /*****************************/ /* Library Private Variables */ @@ -71,274 +59,6 @@ hbool_t H5_PKG_INIT_VAR = FALSE; /* 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 @@ -378,23 +98,23 @@ 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); /* Check args */ - if(ref == NULL) + if (ref == NULL) 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") - if(!name || !*name) + if (!name || !*name) 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") - 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") - 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") - 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") /* 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") done: @@ -404,166 +124,6 @@ done: /*-------------------------------------------------------------------------- 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 H5Rdereference2 PURPOSE Opens the HDF5 object referenced. @@ -601,24 +161,24 @@ 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); /* 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") - if(oapl_id < 0) + if (oapl_id < 0) 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") - if(_ref == NULL) + if (_ref == NULL) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference pointer") /* 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") /* Get the file pointer from the entry */ file = loc.oloc->file; /* 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") done: @@ -628,75 +188,6 @@ done: /*-------------------------------------------------------------------------- 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 H5Rget_region PURPOSE Retrieves a dataspace with the region pointed to selected. @@ -729,19 +220,19 @@ H5Rget_region(hid_t id, H5R_type_t ref_type, const void *ref) H5TRACE3("i", "iRt*x", id, ref_type, ref); /* Check args */ - if(H5G_loc(id, &loc) < 0) + if (H5G_loc(id, &loc) < 0) 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") - if(ref == NULL) + if (ref == NULL) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference pointer") /* 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") /* 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") done: @@ -751,92 +242,6 @@ done: /*-------------------------------------------------------------------------- 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 H5Rget_obj_type2 PURPOSE Retrieves the type of object that an object reference points to @@ -869,16 +274,16 @@ 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); /* Check args */ - if(H5G_loc(id, &loc) < 0) + if (H5G_loc(id, &loc) < 0) 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") - if(ref == NULL) + if (ref == NULL) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference pointer") /* Get the object information */ - 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") + 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") done: FUNC_LEAVE_API(ret_value) @@ -887,106 +292,6 @@ done: /*-------------------------------------------------------------------------- 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 H5Rget_name PURPOSE Determines a name for the object referenced @@ -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); /* Check args */ - if(H5G_loc(id, &loc) < 0) + if (H5G_loc(id, &loc) < 0) 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") - if(_ref == NULL) + if (_ref == NULL) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference pointer") /* Get the file pointer from the entry */ file = loc.oloc->file; /* 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") done: |