diff options
Diffstat (limited to 'src/H5T.c')
| -rw-r--r-- | src/H5T.c | 169 |
1 files changed, 115 insertions, 54 deletions
@@ -226,18 +226,34 @@ #define H5T_INIT_TYPE_REF_COMMON { \ H5T_INIT_TYPE_ALLOC_COMMON(H5T_REFERENCE) \ H5T_INIT_TYPE_NUM_COMMON(H5T_ORDER_NONE) \ + dt->shared->force_conv = TRUE; \ + dt->shared->u.atomic.u.r.f = NULL; \ + dt->shared->u.atomic.u.r.loc = H5T_LOC_BADLOC; \ + dt->shared->u.atomic.u.r.cls = NULL; \ } #define H5T_INIT_TYPE_OBJREF_CORE { \ H5T_INIT_TYPE_REF_COMMON \ - dt->shared->force_conv = TRUE; \ - dt->shared->u.atomic.u.r.rtype = H5R_OBJECT; \ - dt->shared->u.atomic.u.r.loc = H5T_LOC_MEMORY; \ + dt->shared->u.atomic.u.r.rtype = H5R_OBJECT1; \ + dt->shared->u.atomic.u.r.opaque = FALSE; \ + dt->shared->u.atomic.u.r.version = 0; \ } #define H5T_INIT_TYPE_REGREF_CORE { \ H5T_INIT_TYPE_REF_COMMON \ - dt->shared->u.atomic.u.r.rtype = H5R_DATASET_REGION; \ + dt->shared->u.atomic.u.r.rtype = H5R_DATASET_REGION1; \ + dt->shared->u.atomic.u.r.opaque = FALSE; \ + dt->shared->u.atomic.u.r.version = 0; \ +} + +/* rtype value is only used as a placeholder to differentiate the type from + * other types, any opaque (i.e. "new") reference type could be used. + */ +#define H5T_INIT_TYPE_REF_CORE { \ + H5T_INIT_TYPE_REF_COMMON \ + dt->shared->u.atomic.u.r.rtype = H5R_OBJECT2; \ + dt->shared->u.atomic.u.r.opaque = TRUE; \ + dt->shared->u.atomic.u.r.version = H5R_ENCODE_VERSION; \ } /* Define the code templates for the "SIZE_TMPL" in the H5T_INIT_TYPE macro */ @@ -295,7 +311,7 @@ static htri_t H5T__compiler_conv(H5T_t *src, H5T_t *dst); static herr_t H5T__set_size(H5T_t *dt, size_t size); static herr_t H5T__close_cb(H5T_t *dt); static H5T_path_t *H5T__path_find_real(const H5T_t *src, const H5T_t *dst, const char *name, H5T_conv_func_t *conv); -static hbool_t H5T__detect_reg_ref(const H5T_t *dt); +static hbool_t H5T__detect_vlen_ref(const H5T_t *dt); /*****************************/ @@ -354,6 +370,7 @@ hid_t H5T_STD_B64BE_g = FAIL; hid_t H5T_STD_B64LE_g = FAIL; hid_t H5T_STD_REF_OBJ_g = FAIL; hid_t H5T_STD_REF_DSETREG_g = FAIL; +hid_t H5T_STD_REF_g = FAIL; hid_t H5T_UNIX_D32BE_g = FAIL; hid_t H5T_UNIX_D32LE_g = FAIL; @@ -444,6 +461,7 @@ size_t H5T_POINTER_COMP_ALIGN_g = 0; size_t H5T_HVL_COMP_ALIGN_g = 0; size_t H5T_HOBJREF_COMP_ALIGN_g = 0; size_t H5T_HDSETREGREF_COMP_ALIGN_g = 0; +size_t H5T_REF_COMP_ALIGN_g = 0; /* * Alignment constraints for native types. These are initialized at run time @@ -736,7 +754,9 @@ H5T__init_package(void) H5T_t *enum_type=NULL; /* Datatype structure for enum objects */ H5T_t *vlen=NULL; /* Datatype structure for vlen objects */ H5T_t *array=NULL; /* Datatype structure for array objects */ - H5T_t *objref=NULL; /* Datatype structure for object reference objects */ + H5T_t *objref=NULL; /* Datatype structure for deprecated reference objects */ + H5T_t *regref=NULL; /* Datatype structure for deprecated region references */ + H5T_t *ref=NULL; /* Datatype structure for opaque references */ hsize_t dim[1]={1}; /* Dimension info for array datatype */ herr_t status; hbool_t copied_dtype = TRUE; /* Flag to indicate whether datatype was copied or allocated (for error cleanup) */ @@ -988,12 +1008,23 @@ H5T__init_package(void) *------------------------------------------------------------ */ - /* Object reference (i.e. object header address in file) */ - H5T_INIT_TYPE(OBJREF, H5T_STD_REF_OBJ_g, ALLOC, -, SET, H5R_OBJ_REF_BUF_SIZE) + /* Deprecated object reference type */ + H5T_INIT_TYPE(OBJREF, H5T_STD_REF_OBJ_g, ALLOC, -, NOSET, -) + if(H5T_set_loc(dt, NULL, H5T_LOC_MEMORY) < 0) + HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "invalid datatype location") objref = dt; /* Keep type for later */ - /* Dataset Region reference (i.e. selection inside a dataset) */ - H5T_INIT_TYPE(REGREF, H5T_STD_REF_DSETREG_g, ALLOC, -, SET, H5R_DSET_REG_REF_BUF_SIZE) + /* Deprecated region reference type */ + H5T_INIT_TYPE(REGREF, H5T_STD_REF_DSETREG_g, ALLOC, -, NOSET, -) + if(H5T_set_loc(dt, NULL, H5T_LOC_MEMORY) < 0) + HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "invalid datatype location") + regref = dt; /* Keep type for later */ + + /* Opaque reference type */ + H5T_INIT_TYPE(REF, H5T_STD_REF_g, ALLOC, -, NOSET, -) + if(H5T_set_loc(dt, NULL, H5T_LOC_MEMORY) < 0) + HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "invalid datatype location") + ref = dt; /* Keep type for later */ /* * Register conversion functions beginning with the most general and @@ -1029,6 +1060,10 @@ H5T__init_package(void) status |= H5T__register_int(H5T_PERS_SOFT, "vlen", vlen, vlen, H5T__conv_vlen); status |= H5T__register_int(H5T_PERS_SOFT, "array", array, array, H5T__conv_array); status |= H5T__register_int(H5T_PERS_SOFT, "objref", objref, objref, H5T__conv_order_opt); + status |= H5T__register_int(H5T_PERS_SOFT, "regref", regref, regref, H5T__conv_noop); + status |= H5T__register_int(H5T_PERS_SOFT, "ref", ref, ref, H5T__conv_ref); + status |= H5T__register_int(H5T_PERS_SOFT, "objref_ref", objref, ref, H5T__conv_ref); + status |= H5T__register_int(H5T_PERS_SOFT, "regref_ref", regref, ref, H5T__conv_ref); /* * Native conversions should be listed last since we can use hardware to @@ -1472,6 +1507,7 @@ H5T_top_term_package(void) H5T_STD_B64LE_g = FAIL; H5T_STD_REF_OBJ_g = FAIL; H5T_STD_REF_DSETREG_g = FAIL; + H5T_STD_REF_g = FAIL; H5T_UNIX_D32BE_g = FAIL; H5T_UNIX_D32LE_g = FAIL; @@ -2882,6 +2918,56 @@ done: /*------------------------------------------------------------------------- + * Function: H5Treclaim + * + * Purpose: Frees the buffers allocated for storing variable-length data + * in memory. Only frees the VL data in the selection defined in the + * dataspace. The dataset transfer property list is required to find the + * correct allocation/free methods for the VL data in the buffer. + * + * Return: Non-negative on success, negative on failure + * + * Programmer: Quincey Koziol + * Thursday, June 10, 1999 + * + *------------------------------------------------------------------------- + */ +herr_t +H5Treclaim(hid_t type_id, hid_t space_id, hid_t dxpl_id, void *buf) +{ + H5S_t *space; /* Dataspace for iteration */ + herr_t ret_value; /* Return value */ + + FUNC_ENTER_API(FAIL) + H5TRACE4("e", "iii*x", type_id, space_id, dxpl_id, buf); + + /* Check args */ + if(H5I_DATATYPE != H5I_get_type(type_id) || buf == NULL) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid argument") + if(NULL == (space = (H5S_t *)H5I_object_verify(space_id, H5I_DATASPACE))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid dataspace") + if(!(H5S_has_extent(space))) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "dataspace does not have extent set") + + /* Get the default dataset transfer property list if the user didn't provide one */ + if(H5P_DEFAULT == dxpl_id) + dxpl_id = H5P_DATASET_XFER_DEFAULT; + else + if(TRUE != H5P_isa_class(dxpl_id, H5P_DATASET_XFER)) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not xfer parms") + + /* Set DXPL for operation */ + H5CX_set_dxpl(dxpl_id); + + /* Call internal routine */ + ret_value = H5T_reclaim(type_id, space, buf); + +done: + FUNC_LEAVE_API(ret_value) +} /* end H5Treclaim() */ + + +/*------------------------------------------------------------------------- * Function: H5Tencode * * Purpose: Given an datatype ID, converts the object description into @@ -4455,28 +4541,10 @@ H5T_cmp(const H5T_t *dt1, const H5T_t *dt2, hbool_t superset) HGOTO_DONE(-1); if(dt1->shared->u.atomic.u.r.rtype > dt2->shared->u.atomic.u.r.rtype) HGOTO_DONE(1); - - switch(dt1->shared->u.atomic.u.r.rtype) { - case H5R_OBJECT: - if(dt1->shared->u.atomic.u.r.loc < dt2->shared->u.atomic.u.r.loc) - HGOTO_DONE(-1); - if(dt1->shared->u.atomic.u.r.loc > dt2->shared->u.atomic.u.r.loc) - HGOTO_DONE(1); - break; - - case H5R_DATASET_REGION: - /* Does this need more to distinguish it? -QAK 11/30/98 */ - /*void */ - break; - - case H5R_BADTYPE: - case H5R_MAXTYPE: - HDassert("invalid type" && 0); - break; - default: - HDassert("not implemented yet" && 0); - break; - } + if(dt1->shared->u.atomic.u.r.loc < dt2->shared->u.atomic.u.r.loc) + HGOTO_DONE(-1); + if(dt1->shared->u.atomic.u.r.loc > dt2->shared->u.atomic.u.r.loc) + HGOTO_DONE(1); break; case H5T_NO_CLASS: @@ -5329,7 +5397,7 @@ done: htri_t H5T_set_loc(dt,f,loc) H5T_t *dt; IN/OUT: Pointer to the datatype to mark H5F_t *f; IN: Pointer to the file the datatype is in - H5T_vlen_type_t loc IN: location of type + H5T_loc_t loc IN: location of type RETURNS One of two values on success: @@ -5454,17 +5522,9 @@ H5T_set_loc(H5T_t *dt, H5F_t *f, H5T_loc_t loc) break; case H5T_REFERENCE: - /* Only need to change location of object references */ - if(dt->shared->u.atomic.u.r.rtype == H5R_OBJECT) { - /* Mark this reference */ - if(loc != dt->shared->u.atomic.u.r.loc) { - /* Set the location */ - dt->shared->u.atomic.u.r.loc = loc; - - /* Indicate that the location changed */ - ret_value = TRUE; - } /* end if */ - } /* end if */ + /* Reference types go through type conversion */ + if((ret_value = H5T__ref_set_loc(dt, f, loc)) < 0) + HGOTO_ERROR(H5E_DATATYPE, H5E_CANTSET, FAIL, "Unable to set reference location"); break; case H5T_NO_CLASS: @@ -5491,7 +5551,7 @@ done: * * Purpose: Check if a datatype will change between disk and memory. * - * Notes: Currently, only variable-length and object references change + * Notes: Currently, only variable-length and references change * between disk & memory (see cases where things are changed in * the H5T_set_loc() code above). * @@ -5526,9 +5586,9 @@ done: /*------------------------------------------------------------------------- - * Function: H5T_detect_reg_ref + * Function: H5T__detect_vlen_ref * - * Purpose: Check whether a datatype contains (or is) a region reference + * Purpose: Check whether a datatype contains (or is) a vlen reference * datatype. * * Return: TRUE (1) or FALSE (0) on success @@ -5540,7 +5600,7 @@ done: *------------------------------------------------------------------------- */ static hbool_t -H5T__detect_reg_ref(const H5T_t *dt) +H5T__detect_vlen_ref(const H5T_t *dt) { unsigned u; /* Local index variable */ hbool_t ret_value = FALSE; /* Return value */ @@ -5550,8 +5610,9 @@ H5T__detect_reg_ref(const H5T_t *dt) /* Sanity checks */ HDassert(dt); - /* Check if this datatype is a region reference */ - if(H5T_REFERENCE == dt->shared->type && H5R_DATASET_REGION == dt->shared->u.atomic.u.r.rtype) + /* Check if this datatype is a vlen reference */ + /* TODO currently H5T_STD_REF is always considered as a vlen type */ + if(H5T_REFERENCE == dt->shared->type && !dt->shared->u.atomic.u.r.opaque) HGOTO_DONE(TRUE); /* Check for types that might have the correct type as a component */ @@ -5560,14 +5621,14 @@ H5T__detect_reg_ref(const H5T_t *dt) /* Iterate over all the compound datatype's fields */ for(u = 0; u < dt->shared->u.compnd.nmembs; u++) /* Recurse on field's datatype */ - if(H5T__detect_reg_ref(dt->shared->u.compnd.memb[u].type)) + if(H5T__detect_vlen_ref(dt->shared->u.compnd.memb[u].type)) HGOTO_DONE(TRUE); break; case H5T_ARRAY: case H5T_VLEN: case H5T_ENUM: - HGOTO_DONE(H5T__detect_reg_ref(dt->shared->parent)); + HGOTO_DONE(H5T__detect_vlen_ref(dt->shared->parent)); break; case H5T_NO_CLASS: @@ -5585,7 +5646,7 @@ H5T__detect_reg_ref(const H5T_t *dt) done: FUNC_LEAVE_NOAPI(ret_value) -} /* end H5T__detect_reg_ref() */ +} /* end H5T__detect_vlen_ref() */ /*------------------------------------------------------------------------- @@ -5621,7 +5682,7 @@ H5T_is_vl_storage(const H5T_t *dt) if(H5T_detect_class(dt, H5T_VLEN, FALSE)) ret_value = TRUE; else if(H5T_detect_class(dt, H5T_REFERENCE, FALSE)) - ret_value = H5T__detect_reg_ref(dt); + ret_value = H5T__detect_vlen_ref(dt); else ret_value = FALSE; |