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-rw-r--r--src/H5VL.c200
1 files changed, 28 insertions, 172 deletions
diff --git a/src/H5VL.c b/src/H5VL.c
index aa276ec..6e21acb 100644
--- a/src/H5VL.c
+++ b/src/H5VL.c
@@ -29,11 +29,8 @@
/***********/
#include "H5private.h" /* Generic Functions */
-#include "H5Aprivate.h" /* Attributes */
#include "H5Eprivate.h" /* Error handling */
#include "H5Iprivate.h" /* IDs */
-#include "H5MMprivate.h" /* Memory management */
-#include "H5PLprivate.h" /* Plugins */
#include "H5VLpkg.h" /* Virtual Object Layer */
@@ -46,29 +43,10 @@
/* Local Typedefs */
/******************/
-/* Information needed for iterating over the registered VOL connector hid_t IDs.
- * The name or value of the new VOL connector that is being registered is
- * stored in the name (or value) field and the found_id field is initialized to
- * H5I_INVALID_HID (-1). If we find a VOL connector with the same name / value,
- * we set the found_id field to the existing ID for return to the function.
- */
-typedef struct {
- /* IN */
- H5VL_get_connector_kind_t kind; /* Which kind of connector search to make */
- union {
- const char *name; /* The name of the VOL connector to check */
- H5VL_class_value_t value; /* The value of the VOL connector to check */
- } u;
-
- /* OUT */
- hid_t found_id; /* The connector ID, if we found a match */
-} H5VL_get_connector_ud_t;
-
/********************/
/* Local Prototypes */
/********************/
-static int H5VL__get_connector_cb(void *obj, hid_t id, void *_op_data);
/*********************/
@@ -88,45 +66,6 @@ static int H5VL__get_connector_cb(void *obj, hid_t id, void *_op_data);
/*-------------------------------------------------------------------------
- * Function: H5VL__get_connector_cb
- *
- * Purpose: Callback routine to search through registered VOLs
- *
- * Return: Success: H5_ITER_STOP if the class and op_data name
- * members match. H5_ITER_CONT otherwise.
- *
- * Failure: Can't fail
- *
- *-------------------------------------------------------------------------
- */
-static int
-H5VL__get_connector_cb(void *obj, hid_t id, void *_op_data)
-{
- H5VL_get_connector_ud_t *op_data = (H5VL_get_connector_ud_t *)_op_data; /* User data for callback */
- H5VL_class_t *cls = (H5VL_class_t *)obj;
- int ret_value = H5_ITER_CONT; /* Callback return value */
-
- FUNC_ENTER_STATIC_NOERR
-
- if(H5VL_GET_CONNECTOR_BY_NAME == op_data->kind) {
- if(0 == HDstrcmp(cls->name, op_data->u.name)) {
- op_data->found_id = id;
- ret_value = H5_ITER_STOP;
- } /* end if */
- } /* end if */
- else {
- HDassert(H5VL_GET_CONNECTOR_BY_VALUE == op_data->kind);
- if(cls->value == op_data->u.value) {
- op_data->found_id = id;
- ret_value = H5_ITER_STOP;
- } /* end if */
- } /* end else */
-
- FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5VL__get_connector_cb() */
-
-
-/*-------------------------------------------------------------------------
* Function: H5VLregister_connector
*
* Purpose: Registers a new VOL connector as a member of the virtual object
@@ -143,8 +82,7 @@ H5VL__get_connector_cb(void *obj, hid_t id, void *_op_data)
hid_t
H5VLregister_connector(const H5VL_class_t *cls, hid_t vipl_id)
{
- H5VL_get_connector_ud_t op_data; /* Callback info for connector search */
- hid_t ret_value = H5I_INVALID_HID;
+ hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
H5TRACE2("i", "*xi", cls, vipl_id);
@@ -161,25 +99,9 @@ H5VLregister_connector(const H5VL_class_t *cls, hid_t vipl_id)
if (cls->wrap_cls.get_wrap_ctx && !cls->wrap_cls.free_wrap_ctx)
HGOTO_ERROR(H5E_VOL, H5E_CANTREGISTER, H5I_INVALID_HID, "VOL connector must provide free callback for object wrapping contexts when a get callback is provided")
- op_data.kind = H5VL_GET_CONNECTOR_BY_NAME;
- op_data.u.name = cls->name;
- op_data.found_id = H5I_INVALID_HID;
-
- /* check if connector is already registered */
- if (H5I_iterate(H5I_VOL, H5VL__get_connector_cb, &op_data, TRUE) < 0)
- HGOTO_ERROR(H5E_VOL, H5E_BADITER, H5I_INVALID_HID, "can't iterate over VOL IDs")
-
- /* Increment the ref count on the existing VOL connector ID, if it's already registered */
- if(op_data.found_id != H5I_INVALID_HID) {
- if (H5I_inc_ref(op_data.found_id, TRUE) < 0)
- HGOTO_ERROR(H5E_VOL, H5E_CANTINC, H5I_INVALID_HID, "unable to increment ref count on VOL connector")
- ret_value = op_data.found_id;
- } /* end if */
- else {
- /* Create a new class ID */
- if ((ret_value = H5VL_register_connector(cls, TRUE, vipl_id)) < 0)
- HGOTO_ERROR(H5E_VOL, H5E_CANTREGISTER, H5I_INVALID_HID, "unable to register VOL connector")
- } /* end else */
+ /* Register connector */
+ if((ret_value = H5VL__register_connector(cls, TRUE, vipl_id)) < 0)
+ HGOTO_ERROR(H5E_VOL, H5E_CANTREGISTER, H5I_INVALID_HID, "unable to register VOL connector")
done:
FUNC_LEAVE_API(ret_value)
@@ -203,8 +125,7 @@ done:
hid_t
H5VLregister_connector_by_name(const char *name, hid_t vipl_id)
{
- H5VL_get_connector_ud_t op_data; /* Callback info for connector search */
- hid_t ret_value = H5I_INVALID_HID;
+ hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
H5TRACE2("i", "*si", name, vipl_id);
@@ -215,34 +136,9 @@ H5VLregister_connector_by_name(const char *name, hid_t vipl_id)
if (0 == HDstrlen(name))
HGOTO_ERROR(H5E_ARGS, H5E_UNINITIALIZED, H5I_INVALID_HID, "zero-length VOL connector name is disallowed")
- op_data.kind = H5VL_GET_CONNECTOR_BY_NAME;
- op_data.u.name = name;
- op_data.found_id = H5I_INVALID_HID;
-
- /* Check if connector is already registered */
- if(H5I_iterate(H5I_VOL, H5VL__get_connector_cb, &op_data, TRUE) < 0)
- HGOTO_ERROR(H5E_VOL, H5E_BADITER, H5I_INVALID_HID, "can't iterate over VOL ids")
-
- /* If connector alread registered, increment ref count on ID and return ID */
- if(op_data.found_id != H5I_INVALID_HID) {
- if(H5I_inc_ref(op_data.found_id, TRUE) < 0)
- HGOTO_ERROR(H5E_VOL, H5E_CANTINC, H5I_INVALID_HID, "unable to increment ref count on VOL connector")
- ret_value = op_data.found_id;
- } /* end if */
- else {
- H5PL_key_t key;
- const H5VL_class_t *cls;
-
- /* Try loading the connector */
- key.vol.kind = H5VL_GET_CONNECTOR_BY_NAME;
- key.vol.u.name = name;
- if(NULL == (cls = (const H5VL_class_t *)H5PL_load(H5PL_TYPE_VOL, &key)))
- HGOTO_ERROR(H5E_VOL, H5E_CANTINIT, H5I_INVALID_HID, "unable to load VOL connector")
-
- /* Register the connector we loaded */
- if((ret_value = H5VL_register_connector(cls, TRUE, vipl_id)) < 0)
- HGOTO_ERROR(H5E_VOL, H5E_CANTREGISTER, H5I_INVALID_HID, "unable to register VOL connector ID")
- } /* end else */
+ /* Register connector */
+ if((ret_value = H5VL__register_connector_by_name(name, TRUE, vipl_id)) < 0)
+ HGOTO_ERROR(H5E_VOL, H5E_CANTREGISTER, H5I_INVALID_HID, "unable to register VOL connector")
done:
FUNC_LEAVE_API(ret_value)
@@ -266,8 +162,7 @@ done:
hid_t
H5VLregister_connector_by_value(H5VL_class_value_t value, hid_t vipl_id)
{
- H5VL_get_connector_ud_t op_data; /* Callback info for connector search */
- hid_t ret_value = H5I_INVALID_HID;
+ hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
H5TRACE2("i", "VCi", value, vipl_id);
@@ -276,34 +171,9 @@ H5VLregister_connector_by_value(H5VL_class_value_t value, hid_t vipl_id)
if(value < 0)
HGOTO_ERROR(H5E_ARGS, H5E_UNINITIALIZED, H5I_INVALID_HID, "negative VOL connector value is disallowed")
- op_data.kind = H5VL_GET_CONNECTOR_BY_VALUE;
- op_data.u.value = value;
- op_data.found_id = H5I_INVALID_HID;
-
- /* Check if connector is already registered */
- if(H5I_iterate(H5I_VOL, H5VL__get_connector_cb, &op_data, TRUE) < 0)
- HGOTO_ERROR(H5E_VOL, H5E_BADITER, H5I_INVALID_HID, "can't iterate over VOL ids")
-
- /* If connector alread registered, increment ref count on ID and return ID */
- if(op_data.found_id != H5I_INVALID_HID) {
- if(H5I_inc_ref(op_data.found_id, TRUE) < 0)
- HGOTO_ERROR(H5E_VOL, H5E_CANTINC, H5I_INVALID_HID, "unable to increment ref count on VOL connector")
- ret_value = op_data.found_id;
- } /* end if */
- else {
- H5PL_key_t key;
- const H5VL_class_t *cls;
-
- /* Try loading the connector */
- key.vol.kind = H5VL_GET_CONNECTOR_BY_VALUE;
- key.vol.u.value = value;
- if(NULL == (cls = (const H5VL_class_t *)H5PL_load(H5PL_TYPE_VOL, &key)))
- HGOTO_ERROR(H5E_VOL, H5E_CANTINIT, H5I_INVALID_HID, "unable to load VOL connector")
-
- /* Register the connector we loaded */
- if((ret_value = H5VL_register_connector(cls, TRUE, vipl_id)) < 0)
- HGOTO_ERROR(H5E_VOL, H5E_CANTREGISTER, H5I_INVALID_HID, "unable to register VOL connector ID")
- } /* end else */
+ /* Register connector */
+ if((ret_value = H5VL__register_connector_by_value(value, TRUE, vipl_id)) < 0)
+ HGOTO_ERROR(H5E_VOL, H5E_CANTREGISTER, H5I_INVALID_HID, "unable to register VOL connector")
done:
FUNC_LEAVE_API(ret_value)
@@ -315,33 +185,26 @@ done:
*
* Purpose: Tests whether a VOL class has been registered or not
*
- * Return: Positive if the VOL class has been registered
- *
- * Zero if it is unregistered
+ * Return: >0 if the VOL class has been registered
+ * 0 if it is unregistered
+ * <0 on error (if the class is not a valid class ID)
*
- * Negative on error (if the class is not a valid class ID)
+ * Programmer: Dana Robinson
+ * June 17, 2017
*
*-------------------------------------------------------------------------
*/
htri_t
H5VLis_connector_registered(const char *name)
{
- H5VL_get_connector_ud_t op_data; /* Callback info for connector search */
htri_t ret_value = FALSE; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE1("t", "*s", name);
- op_data.kind = H5VL_GET_CONNECTOR_BY_NAME;
- op_data.u.name = name;
- op_data.found_id = H5I_INVALID_HID;
-
- /* Check arguments */
- if (H5I_iterate(H5I_VOL, H5VL__get_connector_cb, &op_data, TRUE) < 0)
- HGOTO_ERROR(H5E_VOL, H5E_BADITER, FAIL, "can't iterate over VOL ids")
-
- if (op_data.found_id != H5I_INVALID_HID)
- ret_value = TRUE;
+ /* Check if connector with this name is registered */
+ if((ret_value = H5VL__is_connector_registered(name)) < 0)
+ HGOTO_ERROR(H5E_VOL, H5E_CANTGET, FAIL, "can't check for VOL")
done:
FUNC_LEAVE_API(ret_value)
@@ -356,30 +219,22 @@ done:
* Return: Positive if the VOL class has been registered
* Negative on error (if the class is not a valid class or not registered)
*
+ * Programmer: Dana Robinson
+ * June 17, 2017
+ *
*-------------------------------------------------------------------------
*/
hid_t
H5VLget_connector_id(const char *name)
{
- H5VL_get_connector_ud_t op_data; /* Callback info for connector search */
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
H5TRACE1("i", "*s", name);
- op_data.kind = H5VL_GET_CONNECTOR_BY_NAME;
- op_data.u.name = name;
- op_data.found_id = H5I_INVALID_HID;
-
- /* Check arguments */
- if (H5I_iterate(H5I_VOL, H5VL__get_connector_cb, &op_data, TRUE) < 0)
- HGOTO_ERROR(H5E_VOL, H5E_BADITER, H5I_INVALID_HID, "can't iterate over VOL connector IDs")
-
- if (op_data.found_id != H5I_INVALID_HID) {
- if (H5I_inc_ref(op_data.found_id, TRUE) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTINC, H5I_INVALID_HID, "unable to increment ref count on VOL connector")
- ret_value = op_data.found_id;
- } /* end if */
+ /* Get connector ID with this name */
+ if((ret_value = H5VL__get_connector_id(name, TRUE)) < 0)
+ HGOTO_ERROR(H5E_VOL, H5E_CANTGET, H5I_INVALID_HID, "can't get VOL id")
done:
FUNC_LEAVE_API(ret_value)
@@ -406,7 +261,8 @@ H5VLget_connector_name(hid_t obj_id, char *name/*out*/, size_t size)
FUNC_ENTER_API(FAIL)
H5TRACE3("Zs", "ixz", obj_id, name, size);
- if ((ret_value = H5VL_get_connector_name(obj_id, name, size)) < 0)
+ /* Call internal routine */
+ if((ret_value = H5VL__get_connector_name(obj_id, name, size)) < 0)
HGOTO_ERROR(H5E_VOL, H5E_CANTGET, FAIL, "Can't get connector name")
done: