diff options
Diffstat (limited to 'src/H5Gloc.c')
| -rw-r--r-- | src/H5Gloc.c | 166 |
1 files changed, 151 insertions, 15 deletions
diff --git a/src/H5Gloc.c b/src/H5Gloc.c index 3a94a79..ca488cf 100644 --- a/src/H5Gloc.c +++ b/src/H5Gloc.c @@ -22,10 +22,17 @@ * *------------------------------------------------------------------------- */ + +/****************/ +/* Module Setup */ +/****************/ + #define H5G_PACKAGE /*suppress error about including H5Gpkg */ -/* Packages needed by this file... */ +/***********/ +/* Headers */ +/***********/ #include "H5private.h" /* Generic Functions */ #include "H5Aprivate.h" /* Attributes */ #include "H5Dprivate.h" /* Datasets */ @@ -33,21 +40,61 @@ #include "H5Gpkg.h" /* Groups */ #include "H5Iprivate.h" /* IDs */ -/* Private typedefs */ +/****************/ +/* Local Macros */ +/****************/ + + +/******************/ +/* Local Typedefs */ +/******************/ /* User data for looking up an object in a group */ typedef struct { + /* upward */ H5G_loc_t *loc; /* Group location to set */ -} H5G_loc_ud1_t; +} H5G_loc_fnd_t; -/* Private macros */ +/* User data for looking up an object in a group by index */ +typedef struct { + /* downward */ + hid_t dxpl_id; /* DXPL to use for operation */ + H5L_index_t idx_type; /* Index to use */ + H5_iter_order_t order; /* Iteration order within index */ + hsize_t n; /* Offset within index */ + + /* upward */ + H5G_loc_t *loc; /* Group location to set */ +} H5G_loc_fbi_t; -/* Local variables */ -/* PRIVATE PROTOTYPES */ +/********************/ +/* Local Prototypes */ +/********************/ + +/* Group traversal callbacks */ static herr_t H5G_loc_find_cb(H5G_loc_t *grp_loc, const char *name, const H5O_link_t *lnk, H5G_loc_t *obj_loc, void *_udata, H5G_own_loc_t *own_loc/*out*/); +static herr_t H5G_loc_find_by_idx_cb(H5G_loc_t *grp_loc, const char *name, + const H5O_link_t *lnk, H5G_loc_t *obj_loc, void *_udata, + H5G_own_loc_t *own_loc/*out*/); + + +/*********************/ +/* Package Variables */ +/*********************/ + + +/*****************************/ +/* Library Private Variables */ +/*****************************/ + + +/*******************/ +/* Local Variables */ +/*******************/ + /*------------------------------------------------------------------------- @@ -184,7 +231,7 @@ done: *------------------------------------------------------------------------- */ herr_t -H5G_loc_copy(H5G_loc_t *dst, H5G_loc_t *src, H5_copy_depth_t depth) +H5G_loc_copy(H5G_loc_t *dst, const H5G_loc_t *src, H5_copy_depth_t depth) { herr_t ret_value = SUCCEED; /* Return value */ @@ -261,10 +308,6 @@ H5G_loc_free(H5G_loc_t *loc) HDassert(loc); /* Reset components of the location */ -#ifdef NOT_YET - if(H5G_ent_free(loc->ent) < 0) - HGOTO_ERROR(H5E_SYM, H5E_CANTOPENOBJ, FAIL, "unable to free entry") -#endif /* NOT_YET */ if(H5G_name_free(loc->path) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTRELEASE, FAIL, "unable to free path") if(H5O_loc_free(loc->oloc) < 0) @@ -291,8 +334,8 @@ static herr_t H5G_loc_find_cb(H5G_loc_t UNUSED *grp_loc/*in*/, const char UNUSED *name, const H5O_link_t UNUSED *lnk, H5G_loc_t *obj_loc, void *_udata/*in,out*/, H5G_own_loc_t *own_loc/*out*/) { - H5G_loc_ud1_t *udata = (H5G_loc_ud1_t *)_udata; /* User data passed in */ - herr_t ret_value = SUCCEED; /* Return value */ + H5G_loc_fnd_t *udata = (H5G_loc_fnd_t *)_udata; /* User data passed in */ + herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5G_loc_find_cb) @@ -328,8 +371,8 @@ herr_t H5G_loc_find(H5G_loc_t *loc, const char *name, H5G_loc_t *obj_loc/*out*/, hid_t lapl_id, hid_t dxpl_id) { - H5G_loc_ud1_t udata; /* User data for traversal callback */ - herr_t ret_value = SUCCEED; /* Return value */ + H5G_loc_fnd_t udata; /* User data for traversal callback */ + herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5G_loc_find, FAIL) @@ -351,6 +394,99 @@ done: /*------------------------------------------------------------------------- + * Function: H5G_loc_find_by_idx_cb + * + * Purpose: Callback for retrieving object location for an object in a group + * according to the order within an index + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Quincey Koziol + * Monday, November 20, 2006 + * + *------------------------------------------------------------------------- + */ +static herr_t +H5G_loc_find_by_idx_cb(H5G_loc_t UNUSED *grp_loc/*in*/, const char UNUSED *name, + const H5O_link_t UNUSED *lnk, H5G_loc_t *obj_loc, void *_udata/*in,out*/, + H5G_own_loc_t *own_loc/*out*/) +{ + H5G_loc_fbi_t *udata = (H5G_loc_fbi_t *)_udata; /* User data passed in */ + H5O_link_t fnd_lnk; /* Link within group */ + hbool_t lnk_copied = FALSE; /* Whether the link was copied */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_NOAPI_NOINIT(H5G_loc_find_by_idx_cb) + + /* Check if the name in this group resolved to a valid link */ + if(obj_loc == NULL) + HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, FAIL, "group doesn't exist") + + /* Query link */ + if(H5G_obj_lookup_by_idx(obj_loc->oloc, udata->idx_type, udata->order, + udata->n, &fnd_lnk, udata->dxpl_id) < 0) + HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, FAIL, "link not found") + lnk_copied = TRUE; + + /* Build the object location for the link */ + +done: + /* Reset the link information, if we have a copy */ + if(lnk_copied) + H5O_reset(H5O_LINK_ID, &fnd_lnk); + + /* 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_loc_find_by_idx_cb() */ + + +/*------------------------------------------------------------------------- + * Function: H5G_loc_find_by_idx + * + * Purpose: Find a symbol from a location, according to the order in an index + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Quincey Koziol + * Monday, November 20, 2006 + * + *------------------------------------------------------------------------- + */ +herr_t +H5G_loc_find_by_idx(H5G_loc_t *loc, const char *group_name, H5L_index_t idx_type, + H5_iter_order_t order, hsize_t n, H5G_loc_t *obj_loc/*out*/, hid_t lapl_id, + hid_t dxpl_id) +{ + H5G_loc_fbi_t udata; /* User data for traversal callback */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_NOAPI(H5G_loc_find_by_idx, FAIL) + + /* Check args. */ + HDassert(loc); + HDassert(group_name && *group_name); + HDassert(obj_loc); + + /* Set up user data for locating object */ + udata.dxpl_id = dxpl_id; + udata.idx_type = idx_type; + udata.order = order; + udata.n = n; + udata.loc = obj_loc; + + /* Traverse group hierarchy to locate object */ + if(H5G_traverse(loc, group_name, H5G_TARGET_NORMAL, H5G_loc_find_by_idx_cb, &udata, lapl_id, dxpl_id) < 0) + HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, FAIL, "can't find object") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5G_loc_find_by_idx() */ + + +/*------------------------------------------------------------------------- * Function: H5G_loc_insert * * Purpose: Insert an object at a location |