diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/H5A.c | 50 | ||||
| -rw-r--r-- | src/H5Adeprec.c | 40 | ||||
| -rw-r--r-- | src/H5Apublic.h | 4 |
3 files changed, 80 insertions, 14 deletions
@@ -1642,43 +1642,67 @@ done: /*-------------------------------------------------------------------------- NAME - H5Adelete + H5Adelete2 PURPOSE Deletes an attribute from a location USAGE herr_t H5Adelete (loc_id, name) - hid_t loc_id; IN: Object (dataset or group) to have attribute deleted from - const char *name; IN: Name of attribute to delete + hid_t loc_id; IN: Base location for object + const char *obj_name; IN: Name of object relative to location + const char *attr_name; IN: Name of attribute to delete + hid_t lapl_id; IN: Link access property list RETURNS Non-negative on success/Negative on failure DESCRIPTION - This function removes the named attribute from a dataset or group. - This function should not be used when attribute IDs are open on 'loc_id' - as it may cause the internal indexes of the attributes to change and future - writes to the open attributes to produce incorrect results. + This function removes the named attribute from an object. --------------------------------------------------------------------------*/ herr_t -H5Adelete(hid_t loc_id, const char *name) +H5Adelete2(hid_t loc_id, const char *obj_name, const char *attr_name, + hid_t lapl_id) { H5G_loc_t loc; /* Object location */ + H5G_loc_t obj_loc; /* Location used to open group */ + H5G_name_t obj_path; /* Opened object group hier. path */ + H5O_loc_t obj_oloc; /* Opened object object location */ + hbool_t loc_found = FALSE; /* Entry at 'obj_name' found */ herr_t ret_value = SUCCEED; /* Return value */ - FUNC_ENTER_API(H5Adelete, FAIL) - H5TRACE2("e", "is", loc_id, name); + FUNC_ENTER_API(H5Adelete2, FAIL) /* check arguments */ if(H5I_ATTR == H5I_get_type(loc_id)) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "location is not valid for an attribute") if(H5G_loc(loc_id, &loc) < 0) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location") - if(!name || !*name) - HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no name") + if(!obj_name || !*obj_name) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no object name") + if(!attr_name || !*attr_name) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no attribute name") + if(H5P_DEFAULT == lapl_id) + lapl_id = H5P_LINK_ACCESS_DEFAULT; + else + if(TRUE != H5P_isa_class(lapl_id, H5P_LINK_ACCESS)) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not link access property list ID") + + /* Set up opened group location to fill in */ + obj_loc.oloc = &obj_oloc; + obj_loc.path = &obj_path; + H5G_loc_reset(&obj_loc); + + /* Find the object's location */ + if(H5G_loc_find(&loc, obj_name, &obj_loc/*out*/, lapl_id, H5AC_ind_dxpl_id) < 0) + HGOTO_ERROR(H5E_ATTR, H5E_NOTFOUND, FAIL, "object not found") + loc_found = TRUE; /* Delete the attribute from the location */ - if(H5O_attr_remove(loc.oloc, name, H5AC_dxpl_id) < 0) + if(H5O_attr_remove(obj_loc.oloc, attr_name, H5AC_dxpl_id) < 0) HGOTO_ERROR(H5E_ATTR, H5E_CANTDELETE, FAIL, "unable to delete attribute") done: + /* Release resources */ + if(loc_found && H5G_loc_free(&obj_loc) < 0) + HDONE_ERROR(H5E_ATTR, H5E_CANTRELEASE, FAIL, "can't free location") + FUNC_LEAVE_API(ret_value) } /* H5Adelete() */ diff --git a/src/H5Adeprec.c b/src/H5Adeprec.c index d1d7740..0e1d264 100644 --- a/src/H5Adeprec.c +++ b/src/H5Adeprec.c @@ -165,3 +165,43 @@ done: FUNC_LEAVE_API(ret_value) } /* H5Aget_num_attrs() */ + +/*-------------------------------------------------------------------------- + NAME + H5Adelete + PURPOSE + Deletes an attribute from a location + USAGE + herr_t H5Adelete (loc_id, name) + hid_t loc_id; IN: Object (dataset or group) to have attribute deleted from + const char *name; IN: Name of attribute to delete + RETURNS + Non-negative on success/Negative on failure + DESCRIPTION + This function removes the named attribute from a dataset or group. +--------------------------------------------------------------------------*/ +herr_t +H5Adelete(hid_t loc_id, const char *name) +{ + H5G_loc_t loc; /* Object location */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_API(H5Adelete, FAIL) + H5TRACE2("e", "is", loc_id, name); + + /* check arguments */ + if(H5I_ATTR == H5I_get_type(loc_id)) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "location is not valid for an attribute") + if(H5G_loc(loc_id, &loc) < 0) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location") + if(!name || !*name) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no name") + + /* Delete the attribute from the location */ + if(H5O_attr_remove(loc.oloc, name, H5AC_dxpl_id) < 0) + HGOTO_ERROR(H5E_ATTR, H5E_CANTDELETE, FAIL, "unable to delete attribute") + +done: + FUNC_LEAVE_API(ret_value) +} /* H5Adelete() */ + diff --git a/src/H5Apublic.h b/src/H5Apublic.h index 818fc30..7268c73 100644 --- a/src/H5Apublic.h +++ b/src/H5Apublic.h @@ -64,7 +64,8 @@ H5_DLL ssize_t H5Aget_name_by_idx(hid_t loc_id, const char *obj_name, H5_DLL herr_t H5Arename(hid_t loc_id, const char *old_name, const char *new_name); H5_DLL herr_t H5Aiterate(hid_t loc_id, unsigned *attr_num, H5A_operator_t op, void *op_data); -H5_DLL herr_t H5Adelete(hid_t loc_id, const char *name); +H5_DLL herr_t H5Adelete2(hid_t loc_id, const char *obj_name, + const char *attr_name, hid_t lapl_id); H5_DLL herr_t H5Adelete_by_idx(hid_t loc_id, const char *obj_name, H5_index_t idx_type, H5_iter_order_t order, hsize_t n, hid_t lapl_id); @@ -74,6 +75,7 @@ H5_DLL herr_t H5Adelete_by_idx(hid_t loc_id, const char *obj_name, * Use of these functions and variables is deprecated. */ H5_DLL int H5Aget_num_attrs(hid_t loc_id); +H5_DLL herr_t H5Adelete(hid_t loc_id, const char *name); #ifdef __cplusplus } |