/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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 files COPYING and Copyright.html. COPYING can be found at the root * * of the source code distribution tree; Copyright.html can be found at the * * root level of an installed copy of the electronic HDF5 document set and * * is linked from the top-level documents page. It can also be found at * * http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have * * access to either file, you may request a copy from help@hdfgroup.org. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /*------------------------------------------------------------------------- * * Created: H5Gdeprec.c * June 21 2006 * James Laird * * Purpose: Deprecated functions from the H5G interface. These * functions are here for compatibility purposes and may be * removed in the future. Applications should switch to the * newer APIs. * *------------------------------------------------------------------------- */ /****************/ /* Module Setup */ /****************/ #include "H5Gmodule.h" /* This source code file is part of the H5G module */ /***********/ /* Headers */ /***********/ #include "H5private.h" /* Generic Functions */ #include "H5ACprivate.h" /* Metadata cache */ #include "H5Eprivate.h" /* Error handling */ #include "H5Gpkg.h" /* Groups */ #include "H5Iprivate.h" /* IDs */ #include "H5Lprivate.h" /* Links */ #include "H5Pprivate.h" /* Property lists */ /****************/ /* Local Macros */ /****************/ /******************/ /* Local Typedefs */ /******************/ #ifndef H5_NO_DEPRECATED_SYMBOLS /* User data for path traversal routine for getting object info */ typedef struct { H5G_stat_t *statbuf; /* Stat buffer about object */ hbool_t follow_link; /* Whether we are following a link or not */ H5F_t *loc_file; /* Pointer to the file the location is in */ hid_t dxpl_id; /* Dataset transfer property list */ } H5G_trav_goi_t; /********************/ /* Package Typedefs */ /********************/ /********************/ /* Local Prototypes */ /********************/ static herr_t H5G_link_hard(hid_t cur_loc_id, const char *cur_name, hid_t new_loc_id, const char *new_name); static herr_t H5G_move(hid_t src_loc_id, const char *src_name, hid_t dst_loc_id, const char *dst_name); static herr_t H5G_get_objinfo_cb(H5G_loc_t *grp_loc/*in*/, const char *name, const H5O_link_t *lnk, H5G_loc_t *obj_loc, void *_udata/*in,out*/, H5G_own_loc_t *own_loc/*out*/); static herr_t H5G_get_objinfo(const H5G_loc_t *loc, const char *name, hbool_t follow_link, H5G_stat_t *statbuf/*out*/, hid_t dxpl_id); static H5G_obj_t H5G_obj_get_type_by_idx(H5O_loc_t *oloc, hsize_t idx, hid_t dxpl_id); #endif /* H5_NO_DEPRECATED_SYMBOLS */ /*********************/ /* Package Variables */ /*********************/ /*****************************/ /* Library Private Variables */ /*****************************/ /*******************/ /* Local Variables */ /*******************/ #ifndef H5_NO_DEPRECATED_SYMBOLS /*------------------------------------------------------------------------- * Function: H5G_map_obj_type * * Purpose: Maps the object type to the older "group" object type * * Return: Object type (can't fail) * * Programmer: Quincey Koziol * Tuesday, November 21, 2006 * *------------------------------------------------------------------------- */ H5G_obj_t H5G_map_obj_type(H5O_type_t obj_type) { H5G_obj_t ret_value = H5G_UNKNOWN; /* Return value */ /* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */ FUNC_ENTER_NOAPI_NOINIT_NOERR /* Map object type to older "group" object type */ switch(obj_type) { case H5O_TYPE_GROUP: ret_value = H5G_GROUP; break; case H5O_TYPE_DATASET: ret_value = H5G_DATASET; break; case H5O_TYPE_NAMED_DATATYPE: ret_value = H5G_TYPE; break; case H5O_TYPE_UNKNOWN: case H5O_TYPE_NTYPES: default: ret_value = H5G_UNKNOWN; } /* end switch */ FUNC_LEAVE_NOAPI(ret_value) } /* end H5G_map_obj_type() */ /*------------------------------------------------------------------------- * Function: H5Gcreate1 * * Purpose: Creates a new group relative to LOC_ID and gives it the * specified NAME. The group is opened for write access * and it's object ID is returned. * * The optional SIZE_HINT specifies how much file space to * reserve to store the names that will appear in this * group. If a non-positive value is supplied for the SIZE_HINT * then a default size is chosen. * * Note: Deprecated in favor of H5Gcreate2 * * Return: Success: The object ID of a new, empty group open for * writing. Call H5Gclose() when finished with * the group. * * Failure: FAIL * * Programmer: Robb Matzke * Wednesday, September 24, 1997 * *------------------------------------------------------------------------- */ hid_t H5Gcreate1(hid_t loc_id, const char *name, size_t size_hint) { H5G_loc_t loc; /* Location to create group */ H5G_t *grp = NULL; /* New group created */ hid_t tmp_gcpl = (-1); /* Temporary group creation property list */ hid_t ret_value; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE3("i", "i*sz", loc_id, name, size_hint); /* Check arguments */ 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 given") /* Check if we need to create a non-standard GCPL */ if(size_hint > 0) { H5P_genplist_t *gc_plist; /* Property list created */ H5O_ginfo_t ginfo; /* Group info property */ /* Get the default property list */ if(NULL == (gc_plist = (H5P_genplist_t *)H5I_object(H5P_GROUP_CREATE_DEFAULT))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list") /* Make a copy of the default property list */ if((tmp_gcpl = H5P_copy_plist(gc_plist, FALSE)) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTGET, FAIL, "unable to copy the creation property list") /* Get pointer to the copied property list */ if(NULL == (gc_plist = (H5P_genplist_t *)H5I_object(tmp_gcpl))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list") /* Get the group info property */ if(H5P_get(gc_plist, H5G_CRT_GROUP_INFO_NAME, &ginfo) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get group info") /* Set the non-default local heap size hint */ H5_CHECKED_ASSIGN(ginfo.lheap_size_hint, uint32_t, size_hint, size_t); if(H5P_set(gc_plist, H5G_CRT_GROUP_INFO_NAME, &ginfo) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set group info") } /* end if */ else tmp_gcpl = H5P_GROUP_CREATE_DEFAULT; /* Create the new group & get its ID */ if(NULL == (grp = H5G__create_named(&loc, name, H5P_LINK_CREATE_DEFAULT, tmp_gcpl, H5P_GROUP_ACCESS_DEFAULT, H5AC_ind_read_dxpl_id))) HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "unable to create group") if((ret_value = H5I_register(H5I_GROUP, grp, TRUE)) < 0) HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to register group") done: if(tmp_gcpl > 0 && tmp_gcpl != H5P_GROUP_CREATE_DEFAULT) if(H5I_dec_ref(tmp_gcpl) < 0) HDONE_ERROR(H5E_SYM, H5E_CLOSEERROR, FAIL, "unable to release property list") if(ret_value < 0) if(grp && H5G_close(grp) < 0) HDONE_ERROR(H5E_SYM, H5E_CLOSEERROR, FAIL, "unable to release group") FUNC_LEAVE_API(ret_value) } /* end H5Gcreate1() */ /*------------------------------------------------------------------------- * Function: H5Gopen1 * * Purpose: Opens an existing group for modification. When finished, * call H5Gclose() to close it and release resources. * * Note: Deprecated in favor of H5Gopen2 * * Return: Success: Object ID of the group. * * Failure: FAIL * * Programmer: Robb Matzke * Wednesday, December 31, 1997 * *------------------------------------------------------------------------- */ hid_t H5Gopen1(hid_t loc_id, const char *name) { H5G_t *grp = NULL; /* Group opened */ H5G_loc_t loc; /* Location of parent for group */ hid_t ret_value; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE2("i", "i*s", loc_id, name); /* Check args */ 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") /* Open the group */ if((grp = H5G__open_name(&loc, name, H5P_DEFAULT, H5AC_ind_read_dxpl_id)) == NULL) HGOTO_ERROR(H5E_SYM, H5E_CANTOPENOBJ, FAIL, "unable to open group") /* Register an atom for the group */ if((ret_value = H5I_register(H5I_GROUP, grp, TRUE)) < 0) HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to register group") done: if(ret_value < 0) { if(grp && H5G_close(grp) < 0) HDONE_ERROR(H5E_SYM, H5E_CLOSEERROR, FAIL, "unable to release group") } /* end if */ FUNC_LEAVE_API(ret_value) } /* end H5Gopen1() */ /*------------------------------------------------------------------------- * Function: H5Glink * * Purpose: Creates a link between two existing objects. The new * APIs to do this are H5Lcreate_hard and H5Lcreate_soft. * *------------------------------------------------------------------------- */ herr_t H5Glink(hid_t cur_loc_id, H5G_link_t type, const char *cur_name, const char *new_name) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE4("e", "iLl*s*s", cur_loc_id, type, cur_name, new_name); /* Check arguments */ if(!cur_name || !*cur_name) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no current name specified") if(!new_name || !*new_name) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no new name specified") if(type == H5L_TYPE_HARD) { if((ret_value = H5G_link_hard(cur_loc_id, cur_name, H5L_SAME_LOC, new_name)) < 0) HGOTO_ERROR(H5E_LINK, H5E_CANTINIT, FAIL, "couldn't create link") } /* end if */ else if(type == H5L_TYPE_SOFT) { H5G_loc_t cur_loc; /* Group location for new link */ /* Finish checking arguments */ if(H5G_loc(cur_loc_id, &cur_loc) < 0) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location") /* Create the link */ if(H5L_create_soft(cur_name, &cur_loc, new_name, H5P_DEFAULT, H5P_DEFAULT, H5AC_ind_read_dxpl_id) < 0) HGOTO_ERROR(H5E_LINK, H5E_CANTINIT, FAIL, "unable to create link") } /* end else if */ else HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "Not a valid link type") done: FUNC_LEAVE_API(ret_value) } /* end H5Glink() */ /*------------------------------------------------------------------------- * Function: H5Glink2 * * Purpose: Creates a link between two existing objects. The new * APIs to do this are H5Lcreate_hard and H5Lcreate_soft. * *------------------------------------------------------------------------- */ herr_t H5Glink2(hid_t cur_loc_id, const char *cur_name, H5G_link_t type, hid_t new_loc_id, const char *new_name) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE5("e", "i*sLli*s", cur_loc_id, cur_name, type, new_loc_id, new_name); /* Check arguments */ if(!cur_name || !*cur_name) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no current name specified") if(!new_name || !*new_name) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no new name specified") if(type == H5L_TYPE_HARD) { if((ret_value = H5G_link_hard(cur_loc_id, cur_name, new_loc_id, new_name)) < 0) HGOTO_ERROR(H5E_LINK, H5E_CANTINIT, FAIL, "couldn't create link") } /* end if */ else if(type == H5L_TYPE_SOFT) { H5G_loc_t new_loc; /* Group location for new link */ /* Soft links only need one location, the new_loc_id, but it's possible that * new_loc_id is H5L_SAME_LOC */ if(new_loc_id == H5L_SAME_LOC) new_loc_id = cur_loc_id; /* Finish checking arguments */ if(H5G_loc(new_loc_id, &new_loc) < 0) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location") /* Create the link */ if(H5L_create_soft(cur_name, &new_loc, new_name, H5P_DEFAULT, H5P_DEFAULT, H5AC_ind_read_dxpl_id) < 0) HGOTO_ERROR(H5E_LINK, H5E_CANTINIT, FAIL, "unable to create link") } /* end else if */ else HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "not a valid link type") done: FUNC_LEAVE_API(ret_value) } /* end H5Glink2() */ /*------------------------------------------------------------------------- * Function: H5G_link_hard * * Purpose: Creates a hard link from NEW_NAME to CUR_NAME. * * CUR_NAME must name an existing object. CUR_NAME and * NEW_NAME are interpreted relative to CUR_LOC_ID and * NEW_LOC_ID, which are either file IDs or group IDs. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Monday, November 6, 2006 * *------------------------------------------------------------------------- */ static herr_t H5G_link_hard(hid_t cur_loc_id, const char *cur_name, hid_t new_loc_id, const char *new_name) { H5G_loc_t cur_loc, *cur_loc_p; /* Information about current link's group */ H5G_loc_t new_loc, *new_loc_p; /* Information about new link's group */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT /* Finish checking arguments */ if(cur_loc_id == H5L_SAME_LOC && new_loc_id == H5L_SAME_LOC) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "source and destination should not be both H5L_SAME_LOC") if(cur_loc_id != H5L_SAME_LOC && H5G_loc(cur_loc_id, &cur_loc) < 0) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location") if(new_loc_id != H5L_SAME_LOC && H5G_loc(new_loc_id, &new_loc) < 0) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location") /* Set up current & new location pointers */ cur_loc_p = &cur_loc; new_loc_p = &new_loc; if(cur_loc_id == H5L_SAME_LOC) cur_loc_p = new_loc_p; else if(new_loc_id == H5L_SAME_LOC) new_loc_p = cur_loc_p; else if(cur_loc_p->oloc->file != new_loc_p->oloc->file) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "source and destination should be in the same file.") /* Create the link */ if(H5L_create_hard(cur_loc_p, cur_name, new_loc_p, new_name, H5P_DEFAULT, H5P_DEFAULT, H5AC_ind_read_dxpl_id) < 0) HGOTO_ERROR(H5E_LINK, H5E_CANTINIT, FAIL, "unable to create link") done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5G_link_hard() */ /*------------------------------------------------------------------------- * Function: H5Gmove * * Purpose: Moves and renames a link. The new API to do this is H5Lmove. * *------------------------------------------------------------------------- */ herr_t H5Gmove(hid_t src_loc_id, const char *src_name, const char *dst_name) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE3("e", "i*s*s", src_loc_id, src_name, dst_name); /* Call common routine to move the link */ if(H5G_move(src_loc_id, src_name, H5L_SAME_LOC, dst_name) < 0) HGOTO_ERROR(H5E_LINK, H5E_CANTINIT, FAIL, "couldn't move link") done: FUNC_LEAVE_API(ret_value) } /* end H5Gmove() */ /*------------------------------------------------------------------------- * Function: H5Gmove2 * * Purpose: Moves and renames a link. The new API to do this is H5Lmove. * *------------------------------------------------------------------------- */ herr_t H5Gmove2(hid_t src_loc_id, const char *src_name, hid_t dst_loc_id, const char *dst_name) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE4("e", "i*si*s", src_loc_id, src_name, dst_loc_id, dst_name); /* Call common routine to move the link */ if(H5G_move(src_loc_id, src_name, dst_loc_id, dst_name) < 0) HGOTO_ERROR(H5E_LINK, H5E_CANTINIT, FAIL, "couldn't move link") done: FUNC_LEAVE_API(ret_value) } /* end H5Gmove2() */ /*------------------------------------------------------------------------- * Function: H5G_move * * Purpose: Renames an object within an HDF5 file and moves it to a new * group. The original name SRC is unlinked from the group graph * and then inserted with the new name DST (which can specify a * new path for the object) as an atomic operation. The names * are interpreted relative to SRC_LOC_ID and * DST_LOC_ID, which are either file IDs or group ID. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Monday, November 6, 2006 * *------------------------------------------------------------------------- */ static herr_t H5G_move(hid_t src_loc_id, const char *src_name, hid_t dst_loc_id, const char *dst_name) { H5G_loc_t src_loc, *src_loc_p; /* Group info for source location */ H5G_loc_t dst_loc, *dst_loc_p; /* Group info for destination location */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT /* Check arguments */ if(src_loc_id == H5L_SAME_LOC && dst_loc_id == H5L_SAME_LOC) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "source and destination should not both be H5L_SAME_LOC") if(src_loc_id != H5L_SAME_LOC && H5G_loc(src_loc_id, &src_loc) < 0) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location") if(dst_loc_id != H5L_SAME_LOC && H5G_loc(dst_loc_id, &dst_loc) < 0) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location") if(!src_name || !*src_name) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no current name specified") if(!dst_name || !*dst_name) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no destination name specified") /* Set up src & dst location pointers */ src_loc_p = &src_loc; dst_loc_p = &dst_loc; if(src_loc_id == H5L_SAME_LOC) src_loc_p = dst_loc_p; else if(dst_loc_id == H5L_SAME_LOC) dst_loc_p = src_loc_p; /* Move the link */ if(H5L_move(src_loc_p, src_name, dst_loc_p, dst_name, FALSE, H5P_DEFAULT, H5P_DEFAULT, H5AC_ind_read_dxpl_id) < 0) HGOTO_ERROR(H5E_LINK, H5E_CANTMOVE, FAIL, "unable to move link") done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5G_move() */ /*------------------------------------------------------------------------- * Function: H5Gunlink * * Purpose: Removes a link. The new API is H5Ldelete/H5Ldelete_by_idx. * *------------------------------------------------------------------------- */ herr_t H5Gunlink(hid_t loc_id, const char *name) { H5G_loc_t loc; /* Group's location */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE2("e", "i*s", loc_id, name); /* Check arguments */ 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") /* Call H5L routine... */ if(H5L_delete(&loc, name, H5P_DEFAULT, H5AC_ind_read_dxpl_id) < 0) HGOTO_ERROR(H5E_LINK, H5E_CANTDELETE, FAIL, "couldn't delete link") done: FUNC_LEAVE_API(ret_value) } /* end H5Gunlink() */ /*------------------------------------------------------------------------- * Function: H5Gget_linkval * * Purpose: Retrieve's a soft link's data. The new API is * H5Lget_val/H5Lget_val_by_idx. * *------------------------------------------------------------------------- */ herr_t H5Gget_linkval(hid_t loc_id, const char *name, size_t size, char *buf/*out*/) { H5G_loc_t loc; /* Group's location */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE4("e", "i*szx", loc_id, name, size, buf); /* Check arguments */ if(H5G_loc(loc_id, &loc)) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location") if(!name || !*name) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no name specified") /* Call the new link routine which provides this capability */ if(H5L_get_val(&loc, name, buf, size, H5P_DEFAULT, H5AC_ind_read_dxpl_id) < 0) HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, FAIL, "couldn't get link info") done: FUNC_LEAVE_API(ret_value) } /* end H5Gget_linkval() */ /*------------------------------------------------------------------------- * Function: H5Gset_comment * * Purpose: Gives the specified object a comment. The COMMENT string * should be a null terminated string. An object can have only * one comment at a time. Passing NULL for the COMMENT argument * will remove the comment property from the object. * * Note: Deprecated in favor of H5Oset_comment/H5Oset_comment_by_name * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * Monday, July 20, 1998 * *------------------------------------------------------------------------- */ herr_t H5Gset_comment(hid_t loc_id, const char *name, const char *comment) { H5G_loc_t loc; herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE3("e", "i*s*s", loc_id, name, comment); 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 specified") if(H5G_loc_set_comment(&loc, name, comment, H5P_DEFAULT, H5AC_ind_read_dxpl_id) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "unable to set comment value") done: FUNC_LEAVE_API(ret_value) } /* end H5Gset_comment() */ /*------------------------------------------------------------------------- * Function: H5Gget_comment * * Purpose: Return at most BUFSIZE characters of the comment for the * specified object. If BUFSIZE is large enough to hold the * entire comment then the comment string will be null * terminated, otherwise it will not. If the object does not * have a comment value then no bytes are copied to the BUF * buffer. * * Note: Deprecated in favor of H5Oget_comment/H5Oget_comment_by_name * * Return: Success: Number of characters in the comment counting * the null terminator. The value returned may * be larger than the BUFSIZE argument. * * Failure: Negative * * Programmer: Robb Matzke * Monday, July 20, 1998 * *------------------------------------------------------------------------- */ int H5Gget_comment(hid_t loc_id, const char *name, size_t bufsize, char *buf) { H5G_loc_t loc; int ret_value; FUNC_ENTER_API(FAIL) H5TRACE4("Is", "i*sz*s", loc_id, name, bufsize, buf); 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 specified") if(bufsize > 0 && !buf) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no buffer specified") if((ret_value = (int)H5G_loc_get_comment(&loc, name, buf, bufsize, H5P_DEFAULT, H5AC_ind_read_dxpl_id)) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "unable to get comment value") done: FUNC_LEAVE_API(ret_value) } /* end H5Gget_comment() */ /*------------------------------------------------------------------------- * Function: H5Giterate * * Purpose: Iterates over the entries of a group. The LOC_ID and NAME * identify the group over which to iterate and IDX indicates * where to start iterating (zero means at the beginning). The * OPERATOR is called for each member and the iteration * continues until the operator returns non-zero or all members * are processed. The operator is passed a group ID for the * group being iterated, a member name, and OP_DATA for each * member. * * Note: Deprecated in favor of H5Literate * * Return: Success: The return value of the first operator that * returns non-zero, or zero if all members were * processed with no operator returning non-zero. * * Failure: Negative if something goes wrong within the * library, or the negative value returned by one * of the operators. * * Programmer: Robb Matzke * Monday, March 23, 1998 * *------------------------------------------------------------------------- */ herr_t H5Giterate(hid_t loc_id, const char *name, int *idx_p, H5G_iterate_t op, void *op_data) { H5G_link_iterate_t lnk_op; /* Link operator */ hsize_t last_obj; /* Index of last object looked at */ hsize_t idx; /* Internal location to hold index */ herr_t ret_value; FUNC_ENTER_API(FAIL) H5TRACE5("e", "i*s*Isx*x", loc_id, name, idx_p, op, op_data); /* Check args */ if(!name || !*name) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no name specified") if(idx_p && *idx_p < 0) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid index specified") if(!op) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no operator specified") /* Set number of objects looked at to zero */ last_obj = 0; idx = (hsize_t)(idx_p == NULL ? 0 : *idx_p); /* Build link operator info */ lnk_op.op_type = H5G_LINK_OP_OLD; lnk_op.op_func.op_old = op; /* Call private function. */ if((ret_value = H5G_iterate(loc_id, name, H5_INDEX_NAME, H5_ITER_INC, idx, &last_obj, &lnk_op, op_data, H5P_DEFAULT, H5AC_ind_read_dxpl_id)) < 0) HGOTO_ERROR(H5E_SYM, H5E_BADITER, FAIL, "group iteration failed") /* Set the index we stopped at */ if(idx_p) *idx_p = (int)last_obj; done: FUNC_LEAVE_API(ret_value) } /* end H5Giterate() */ /*------------------------------------------------------------------------- * Function: H5Gget_num_objs * * Purpose: Returns the number of objects in the group. It iterates * all B-tree leaves and sum up total number of group members. * * Note: Deprecated in favor of H5Gget_info * * Return: Success: Non-negative * Failure: Negative * * Programmer: Raymond Lu * Nov 20, 2002 * *------------------------------------------------------------------------- */ herr_t H5Gget_num_objs(hid_t loc_id, hsize_t *num_objs) { H5G_loc_t loc; /* Location of object */ H5G_info_t grp_info; /* Group information */ H5O_type_t obj_type; /* Type of object at location */ herr_t ret_value = SUCCEED; FUNC_ENTER_API(FAIL) H5TRACE2("e", "i*h", loc_id, num_objs); /* Check args */ if(H5G_loc(loc_id, &loc) < 0) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location ID") if(H5O_obj_type(loc.oloc, &obj_type, H5AC_ind_read_dxpl_id) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTGET, FAIL, "can't get object type") if(obj_type != H5O_TYPE_GROUP) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a group") if(!num_objs) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "bad pointer to # of objects") /* Retrieve information about the group */ if(H5G__obj_info(loc.oloc, &grp_info, H5AC_ind_read_dxpl_id) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTCOUNT, FAIL, "can't determine") /* Set the number of objects [sic: links] in the group */ *num_objs = grp_info.nlinks; done: FUNC_LEAVE_API(ret_value) } /* end H5Gget_num_objs() */ /*------------------------------------------------------------------------- * Function: H5Gget_objinfo * * Purpose: Returns information about an object. If FOLLOW_LINK is * non-zero then all symbolic links are followed; otherwise all * links except the last component of the name are followed. * * Note: Deprecated in favor of H5Lget_info/H5Oget_info * * Return: Non-negative on success, with the fields of STATBUF (if * non-null) initialized. Negative on failure. * * Programmer: Robb Matzke * Monday, April 13, 1998 * *------------------------------------------------------------------------- */ herr_t H5Gget_objinfo(hid_t loc_id, const char *name, hbool_t follow_link, H5G_stat_t *statbuf/*out*/) { H5G_loc_t loc; herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE4("e", "i*sbx", loc_id, name, follow_link, statbuf); /* Check arguments */ 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 specified") /* Get info */ if(H5G_get_objinfo(&loc, name, follow_link, statbuf, H5AC_ind_read_dxpl_id) < 0) HGOTO_ERROR(H5E_ARGS, H5E_CANTINIT, FAIL, "cannot stat object") done: FUNC_LEAVE_API(ret_value) } /* end H5Gget_objinfo() */ /*------------------------------------------------------------------------- * Function: H5G_get_objinfo_cb * * Purpose: Callback for retrieving info about an object. This routine * gets the info * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Tuesday, September 20, 2005 * *------------------------------------------------------------------------- */ static herr_t H5G_get_objinfo_cb(H5G_loc_t H5_ATTR_UNUSED *grp_loc/*in*/, const char *name, const H5O_link_t *lnk, H5G_loc_t *obj_loc, void *_udata/*in,out*/, H5G_own_loc_t *own_loc/*out*/) { H5G_trav_goi_t *udata = (H5G_trav_goi_t *)_udata; /* User data passed in */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT /* Check if the name in this group resolved to a valid link */ if(lnk == NULL && obj_loc == NULL) HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, FAIL, "'%s' doesn't exist", name) /* Only modify user's buffer if it's available */ if(udata->statbuf) { H5G_stat_t *statbuf = udata->statbuf; /* Convenience pointer for statbuf */ /* Common code to retrieve the file's fileno */ if(H5F_get_fileno((obj_loc ? obj_loc : grp_loc)->oloc->file, &statbuf->fileno[0]) < 0) HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "unable to read fileno") /* Info for soft and UD links is gotten by H5L_get_info. If we have * a hard link, follow it and get info on the object */ if(udata->follow_link || !lnk || (lnk->type == H5L_TYPE_HARD)) { H5O_info_t oinfo; /* Object information */ /* Go retrieve the object information */ /* (don't need index & heap info) */ HDassert(obj_loc); if(H5O_get_info(obj_loc->oloc, udata->dxpl_id, FALSE, &oinfo) < 0) HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "unable to get object info") /* Get mapped object type */ statbuf->type = H5G_map_obj_type(oinfo.type); /* Get object number (i.e. address) for object */ statbuf->objno[0] = (unsigned long)(oinfo.addr); #if H5_SIZEOF_UINT64_T > H5_SIZEOF_LONG statbuf->objno[1] = (unsigned long)(oinfo.addr >> 8 * sizeof(long)); #else statbuf->objno[1] = 0; #endif /* Get # of hard links pointing to object */ statbuf->nlink = oinfo.rc; /* Get modification time for object */ statbuf->mtime = oinfo.ctime; /* Retrieve the object header information */ statbuf->ohdr.size = oinfo.hdr.space.total; statbuf->ohdr.free = oinfo.hdr.space.free; statbuf->ohdr.nmesgs = oinfo.hdr.nmesgs; statbuf->ohdr.nchunks = oinfo.hdr.nchunks; } /* end if */ } /* end if */ done: /* Indicate that this callback didn't take ownership of the group * * location for the object */ *own_loc = H5G_OWN_NONE; FUNC_LEAVE_NOAPI(ret_value) } /* end H5G_get_objinfo_cb() */ /*------------------------------------------------------------------------- * Function: H5G_get_objinfo * * Purpose: Returns information about an object. * * Return: Success: Non-negative with info about the object * returned through STATBUF if it isn't the null * pointer. * * Failure: Negative * * Programmer: Robb Matzke * Monday, April 13, 1998 * *------------------------------------------------------------------------- */ static herr_t H5G_get_objinfo(const H5G_loc_t *loc, const char *name, hbool_t follow_link, H5G_stat_t *statbuf/*out*/, hid_t dxpl_id) { H5G_trav_goi_t udata; /* User data for callback */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT HDassert(loc); HDassert(name && *name); /* Reset stat buffer, if one was given */ if(statbuf) HDmemset(statbuf, 0, sizeof(H5G_stat_t)); /* Set up user data for retrieving information */ udata.statbuf = statbuf; udata.follow_link = follow_link; udata.loc_file = loc->oloc->file; udata.dxpl_id = dxpl_id; /* Traverse the group hierarchy to locate the object to get info about */ if(H5G_traverse(loc, name, (unsigned)(follow_link ? H5G_TARGET_NORMAL : H5G_TARGET_SLINK|H5G_TARGET_UDLINK), H5G_get_objinfo_cb, &udata, H5P_DEFAULT, dxpl_id) < 0) HGOTO_ERROR(H5E_SYM, H5E_EXISTS, FAIL, "name doesn't exist") /* If we're pointing at a soft or UD link, get the real link length and type */ if(statbuf && follow_link == 0) { H5L_info_t linfo; /* Link information buffer */ herr_t ret; /* Get information about link to the object. If this fails, e.g. * because the object is ".", just treat the object as a hard link. */ H5E_BEGIN_TRY { ret = H5L_get_info(loc, name, &linfo, H5P_DEFAULT, dxpl_id); } H5E_END_TRY if(ret >= 0 && linfo.type != H5L_TYPE_HARD) { statbuf->linklen = linfo.u.val_size; if(linfo.type == H5L_TYPE_SOFT) statbuf->type = H5G_LINK; else { /* UD link. H5L_get_info checked for invalid link classes */ HDassert(linfo.type >= H5L_TYPE_UD_MIN && linfo.type <= H5L_TYPE_MAX); statbuf->type = H5G_UDLINK; } /* end else */ } /* end if */ } /* end if */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5G_get_objinfo() */ /*------------------------------------------------------------------------- * Function: H5Gget_objname_by_idx * * Purpose: Returns the name of objects in the group by giving index. * If `name' is non-NULL then write up to `size' bytes into that * buffer and always return the length of the entry name. * Otherwise `size' is ignored and the function does not store the name, * just returning the number of characters required to store the name. * If an error occurs then the buffer pointed to by `name' (NULL or non-NULL) * is unchanged and the function returns a negative value. * If a zero is returned for the name's length, then there is no name * associated with the ID. * * Note: Deprecated in favor of H5Lget_name_by_idx * * Return: Success: Non-negative * Failure: Negative * * Programmer: Raymond Lu * Nov 20, 2002 * *------------------------------------------------------------------------- */ ssize_t H5Gget_objname_by_idx(hid_t loc_id, hsize_t idx, char *name, size_t size) { H5G_loc_t loc; /* Object location */ H5O_type_t obj_type; /* Type of object at location */ ssize_t ret_value; FUNC_ENTER_API(FAIL) H5TRACE4("Zs", "ih*sz", loc_id, idx, name, size); /* Check args */ if(H5G_loc(loc_id, &loc) < 0) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location ID") if(H5O_obj_type(loc.oloc, &obj_type, H5AC_ind_read_dxpl_id) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get object type") if(obj_type != H5O_TYPE_GROUP) HGOTO_ERROR(H5E_DATASET, H5E_BADTYPE, FAIL, "not a group") /* Call internal function */ if((ret_value = H5G_obj_get_name_by_idx(loc.oloc, H5_INDEX_NAME, H5_ITER_INC, idx, name, size, H5AC_ind_read_dxpl_id)) < 0) HGOTO_ERROR(H5E_SYM, H5E_BADTYPE, FAIL, "can't get object name") done: FUNC_LEAVE_API(ret_value) } /* end H5Gget_objname_by_idx() */ /*------------------------------------------------------------------------- * Function: H5Gget_objtype_by_idx * * Purpose: Returns the type of objects in the group by giving index. * * Note: Deprecated in favor of H5Lget_info/H5Oget_info * * Return: Success: H5G_GROUP(1), H5G_DATASET(2), H5G_TYPE(3) * Failure: H5G_UNKNOWN * * Programmer: Raymond Lu * Nov 20, 2002 * *------------------------------------------------------------------------- */ H5G_obj_t H5Gget_objtype_by_idx(hid_t loc_id, hsize_t idx) { H5G_loc_t loc; /* Object location */ H5O_type_t obj_type; /* Type of object at location */ H5G_obj_t ret_value; FUNC_ENTER_API(H5G_UNKNOWN) H5TRACE2("Go", "ih", loc_id, idx); /* Check args */ if(H5G_loc(loc_id, &loc) < 0) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5G_UNKNOWN, "not a location ID") if(H5O_obj_type(loc.oloc, &obj_type, H5AC_ind_read_dxpl_id) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTGET, H5G_UNKNOWN, "can't get object type") if(obj_type != H5O_TYPE_GROUP) HGOTO_ERROR(H5E_SYM, H5E_BADTYPE, H5G_UNKNOWN, "not a group") /* Call internal function*/ if((ret_value = H5G_obj_get_type_by_idx(loc.oloc, idx, H5AC_ind_read_dxpl_id)) == H5G_UNKNOWN) HGOTO_ERROR(H5E_SYM, H5E_BADTYPE, H5G_UNKNOWN, "can't get object type") done: FUNC_LEAVE_API(ret_value) } /* end H5Gget_objtype_by_idx() */ /*------------------------------------------------------------------------- * Function: H5G_obj_get_type_by_idx * * Purpose: Private function for H5Gget_objtype_by_idx. * Returns the type of objects in the group by giving index. * * Return: Success: H5G_GROUP(1), H5G_DATASET(2), H5G_TYPE(3) * * Failure: Negative * * Programmer: Raymond Lu * Nov 20, 2002 * *------------------------------------------------------------------------- */ static H5G_obj_t H5G_obj_get_type_by_idx(H5O_loc_t *oloc, hsize_t idx, hid_t dxpl_id) { H5O_linfo_t linfo; /* Link info message */ htri_t linfo_exists; /* Whether the link info message exists */ H5G_obj_t ret_value = H5G_UNKNOWN; /* Return value */ FUNC_ENTER_NOAPI_TAG(dxpl_id, oloc->addr, H5G_UNKNOWN) /* Sanity check */ HDassert(oloc); /* Attempt to get the link info for this group */ if((linfo_exists = H5G__obj_get_linfo(oloc, &linfo, dxpl_id)) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTGET, H5G_UNKNOWN, "can't check for link info message") if(linfo_exists) { if(H5F_addr_defined(linfo.fheap_addr)) { /* Get the object's name from the dense link storage */ if((ret_value = H5G__dense_get_type_by_idx(oloc->file, dxpl_id, &linfo, idx)) < 0) HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, H5G_UNKNOWN, "can't locate type") } /* end if */ else { /* Get the object's type from the link messages */ if((ret_value = H5G__compact_get_type_by_idx(oloc, dxpl_id, &linfo, idx)) < 0) HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, H5G_UNKNOWN, "can't locate type") } /* end else */ } /* end if */ else { /* Get the object's type from the symbol table */ if((ret_value = H5G__stab_get_type_by_idx(oloc, idx, dxpl_id)) < 0) HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, H5G_UNKNOWN, "can't locate type") } /* end else */ done: FUNC_LEAVE_NOAPI_TAG(ret_value, H5G_UNKNOWN) } /* end H5G_obj_get_type_by_idx() */ #endif /* H5_NO_DEPRECATED_SYMBOLS */