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authorQuincey Koziol <koziol@hdfgroup.org>1998-10-26 17:23:29 (GMT)
committerQuincey Koziol <koziol@hdfgroup.org>1998-10-26 17:23:29 (GMT)
commit808847e0a1f5671c61e51455e8d6314d83341fef (patch)
tree701dfc48605ba7d3119b2cfbdbdc31401363d064 /src
parent5ff842ebefb4adcebaaecd5b6809f32f614ed932 (diff)
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[svn-r791] Internal API tweaks to H5D_open_oid
Diffstat (limited to 'src')
-rw-r--r--src/H5D.c51
-rw-r--r--src/H5Dprivate.h3
-rw-r--r--src/H5R.c8
3 files changed, 29 insertions, 33 deletions
diff --git a/src/H5D.c b/src/H5D.c
index d37b3eb..67298f1 100644
--- a/src/H5D.c
+++ b/src/H5D.c
@@ -96,6 +96,7 @@ static hbool_t interface_initialize_g = FALSE;
static herr_t H5D_init_interface(void);
static void H5D_term_interface(void);
static herr_t H5D_init_storage(H5D_t *dataset, const H5S_t *space);
+H5D_t * H5D_new(const H5D_create_t *create_parms);
/*--------------------------------------------------------------------------
@@ -1137,6 +1138,7 @@ H5D_open(H5G_entry_t *loc, const char *name)
{
H5D_t *dataset = NULL; /*the dataset which was found */
H5D_t *ret_value = NULL; /*return value */
+ H5G_entry_t ent; /* Dataset symbol table entry */
FUNC_ENTER(H5D_open, NULL);
@@ -1144,17 +1146,12 @@ H5D_open(H5G_entry_t *loc, const char *name)
assert (loc);
assert (name && *name);
- if (NULL==(dataset = H5D_new(NULL))) {
- HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL,
- "memory allocation failed");
- }
-
/* Find the dataset object */
- if (H5G_find(loc, name, NULL, &(dataset->ent)) < 0) {
+ if (H5G_find(loc, name, NULL, &ent) < 0) {
HGOTO_ERROR(H5E_DATASET, H5E_NOTFOUND, NULL, "not found");
}
/* Open the dataset object */
- if (H5D_open_oid(dataset, NULL) < 0) {
+ if ((dataset=H5D_open_oid(&ent)) ==NULL) {
HGOTO_ERROR(H5E_DATASET, H5E_NOTFOUND, NULL, "not found");
}
@@ -1181,34 +1178,40 @@ done:
*
*-------------------------------------------------------------------------
*/
-herr_t
-H5D_open_oid(H5D_t *dataset, H5G_entry_t *ent)
+H5D_t *
+H5D_open_oid(H5G_entry_t *ent)
{
- herr_t ret_value = FAIL; /*return value */
+ H5D_t *dataset = NULL; /* New dataset struct */
+ H5D_t *ret_value = NULL; /*return value */
intn i;
H5S_t *space = NULL;
- FUNC_ENTER(H5D_open_oid, FAIL);
+ FUNC_ENTER(H5D_open_oid, NULL);
/* check args */
- assert (dataset);
+ assert (ent);
+ /* Allocate the dataset structure */
+ if (NULL==(dataset = H5D_new(NULL))) {
+ HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL,
+ "memory allocation failed");
+ }
+
/* Copy over the symbol table information if it's provided */
- if(ent!=NULL)
- HDmemcpy(&(dataset->ent),ent,sizeof(H5G_entry_t));
+ HDmemcpy(&(dataset->ent),ent,sizeof(H5G_entry_t));
/* Find the dataset object */
if (H5O_open(&(dataset->ent)) < 0) {
- HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, FAIL, "unable to open");
+ HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, NULL, "unable to open");
}
/* Get the type and space */
if (NULL==(dataset->type=H5O_read(&(dataset->ent), H5O_DTYPE, 0, NULL))) {
- HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL,
+ HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL,
"unable to load type info from dataset header");
}
if (NULL==(space=H5S_read (&(dataset->ent)))) {
- HGOTO_ERROR (H5E_DATASET, H5E_CANTINIT, FAIL,
+ HGOTO_ERROR (H5E_DATASET, H5E_CANTINIT, NULL,
"unable to read data space info from dataset header");
}
@@ -1232,7 +1235,7 @@ H5D_open_oid(H5D_t *dataset, H5G_entry_t *ent)
/* If MPIO is used, no filter support yet. */
if (dataset->ent.file->shared->access_parms->driver == H5F_LOW_MPIO &&
dataset->create_parms->pline.nfilters>0){
- HGOTO_ERROR (H5E_DATASET, H5E_UNSUPPORTED, FAIL,
+ HGOTO_ERROR (H5E_DATASET, H5E_UNSUPPORTED, NULL,
"Parallel IO does not support filters yet");
}
#endif
@@ -1244,7 +1247,7 @@ H5D_open_oid(H5D_t *dataset, H5G_entry_t *ent)
* them.
*/
if (NULL==H5O_read(&(dataset->ent), H5O_LAYOUT, 0, &(dataset->layout))) {
- HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL,
+ HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL,
"unable to read data layout message");
}
switch (dataset->layout.type) {
@@ -1266,7 +1269,7 @@ H5D_open_oid(H5D_t *dataset, H5G_entry_t *ent)
break;
default:
- HGOTO_ERROR(H5E_DATASET, H5E_UNSUPPORTED, FAIL,
+ HGOTO_ERROR(H5E_DATASET, H5E_UNSUPPORTED, NULL,
"not implemented yet");
}
@@ -1274,7 +1277,7 @@ H5D_open_oid(H5D_t *dataset, H5G_entry_t *ent)
if (NULL==H5O_read (&(dataset->ent), H5O_EFL, 0,
&(dataset->create_parms->efl)) &&
!H5F_addr_defined (&(dataset->layout.addr))) {
- HGOTO_ERROR (H5E_DATASET, H5E_CANTINIT, FAIL,
+ HGOTO_ERROR (H5E_DATASET, H5E_CANTINIT, NULL,
"storage address is undefined an no external file list");
}
@@ -1286,18 +1289,18 @@ H5D_open_oid(H5D_t *dataset, H5G_entry_t *ent)
if ((dataset->ent.file->intent & H5F_ACC_RDWR) &&
H5D_CHUNKED==dataset->layout.type) {
if (H5D_init_storage(dataset, space)<0) {
- HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL,
+ HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL,
"unable to initialize file storage");
}
}
/* Success */
- ret_value = SUCCEED;
+ ret_value = dataset;
done:
if (space)
H5S_close (space);
- if (ret_value<0 && dataset) {
+ if (ret_value==NULL && dataset) {
if (H5F_addr_defined(&(dataset->ent.header))) {
H5O_close(&(dataset->ent));
}
diff --git a/src/H5Dprivate.h b/src/H5Dprivate.h
index 6aeb421..bdf66f7 100644
--- a/src/H5Dprivate.h
+++ b/src/H5Dprivate.h
@@ -81,8 +81,7 @@ herr_t H5D_extend (H5D_t *dataset, const hsize_t *size);
H5G_entry_t *H5D_entof (H5D_t *dataset);
H5T_t *H5D_typeof (H5D_t *dset);
H5S_t *H5D_get_space(H5D_t *dset);
-H5D_t * H5D_new(const H5D_create_t *create_parms);
-herr_t H5D_open_oid(H5D_t *dataset, H5G_entry_t *ent);
+H5D_t * H5D_open_oid(H5G_entry_t *ent);
H5F_t * H5D_get_file(const H5D_t *dset);
#endif
diff --git a/src/H5R.c b/src/H5R.c
index 3d0652f..5cf152b 100644
--- a/src/H5R.c
+++ b/src/H5R.c
@@ -267,12 +267,6 @@ H5R_dereference(H5D_t *dset, H5R_type_t ref_type, void *_ref)
* Switch on object type, when we implement that feature, always try to
* open a dataset for now
*/
- /* Allocate the dataset structure */
- if (NULL==(dataset = H5D_new(NULL))) {
- HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL,
- "memory allocation failed");
- }
-
/* Initialize the symbol table entry */
HDmemset(&ent,0,sizeof(H5G_entry_t));
ent.type=H5G_NOTHING_CACHED;
@@ -281,7 +275,7 @@ H5R_dereference(H5D_t *dset, H5R_type_t ref_type, void *_ref)
H5F_addr_decode(ent.file,(const uint8 **)&p,&(ent.header));
/* Open the dataset object */
- if (H5D_open_oid(dataset, &ent) < 0) {
+ if ((dataset=H5D_open_oid(&ent)) == NULL) {
HGOTO_ERROR(H5E_DATASET, H5E_NOTFOUND, FAIL, "not found");
}