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#ifndef __H5VOL_ATTR_FUNC
#define __H5VOL_ATTR_FUNC
#include "H5Vol_def.h"
///
// attribute handlers
//
void *H5VL_adios2_attr_create(void *obj, const H5VL_loc_params_t *loc_params, const char *name,
hid_t type_id, hid_t space_id, hid_t acpl_id, hid_t aapl_id,
hid_t dxpl_id, void **req)
{
REQUIRE_NOT_NULL_ERR(loc_params, NULL);
REQUIRE_NOT_NULL_ERR(obj, NULL);
H5VL_ObjDef_t *vol = (H5VL_ObjDef_t *)obj;
H5VL_AttrDef_t *attrDef = gCreateAttrDef(name, type_id, space_id);
return gAttrToVolObj(attrDef, vol);
}
void *H5VL_adios2_attr_open(void *obj, const H5VL_loc_params_t *loc_params, const char *name,
hid_t aapl_id, hid_t dxpl_id, void **req)
{
REQUIRE_NOT_NULL_ERR(loc_params, NULL);
REQUIRE_NOT_NULL_ERR(obj, NULL);
H5VL_ObjDef_t *vol = (H5VL_ObjDef_t *)obj;
adios2_attribute *attr = gLocateAttrFrom(vol, name);
H5VL_AttrDef_t *attrDef = NULL;
if (NULL == attr)
{
if ('/' == name[0])
{
SHOW_ERROR_MSG("H5VL_ADIOS2: Error: No such ATTRIBUTE: [%s] in file\n ", name);
return NULL;
}
else
{
char withSlash[strlen(name) + 2];
snprintf(withSlash, sizeof(withSlash), "/%s", name);
withSlash[strlen(name) + 1] = '\0';
attr = gLocateAttrFrom(vol, withSlash);
if (NULL == attr)
{
SHOW_ERROR_MSG("H5VL_ADIOS2: Error: No such ATTRIBUTE: [%s] "
"found in file\n ",
withSlash);
return NULL;
}
attrDef = gCreateAttrDef(withSlash, -1, -1);
}
}
else
attrDef = gCreateAttrDef(name, -1, -1);
// H5VL_AttrDef_t *attrDef = gCreateAttrDef(name, -1, -1);
attrDef->m_Attribute = attr;
gLoadAttrDef(attrDef);
return gAttrToVolObj(attrDef, vol);
}
herr_t H5VL_adios2_attr_read(void *attrObj, hid_t mem_type_id, void *buf, hid_t dxpl_id, void **req)
{
REQUIRE_NOT_NULL_ERR(attrObj, -1);
H5VL_ObjDef_t *vol = (H5VL_ObjDef_t *)attrObj;
H5VL_AttrDef_t *attrDef = (H5VL_AttrDef_t *)(vol->m_ObjPtr);
adios2_attribute *attr = attrDef->m_Attribute;
if (NULL == attr)
return -1;
if ((!attrDef->m_IsScalar) && (H5Tget_class(mem_type_id) == H5T_STRING))
{
htri_t isVariableSize = H5Tis_variable_str(mem_type_id);
if (!isVariableSize)
{
size_t strSize = H5Tget_size(mem_type_id);
// buf is char* instead of char**, adios2 c api expects char**
char **result = (char **)(malloc(sizeof(char *) * (int)(attrDef->m_Size)));
size_t k = 0;
for (k = 0; k < attrDef->m_Size; k++)
result[k] = (char *)(malloc(strSize));
adios2_attribute_data(result, &(attrDef->m_Size), attr);
char *out = (char *)buf;
if (strlen(out) > 0)
{
buf = result;
return 0;
}
// from openPMD api.. using char*[n*max_length] to hold result
for (k = 0; k < attrDef->m_Size; k++)
{
strncpy(out + k * strSize, result[k], strSize);
out[k * strSize + strlen(result[k])] = '\0';
free(result[k]);
}
free(result);
return 0;
}
}
adios2_attribute_data(buf, &(attrDef->m_Size), attr);
return 0;
}
herr_t H5VL_adios2_attr_write(void *attr, hid_t mem_type_id, const void *buf, hid_t dxpl_id,
void **req)
{
REQUIRE_NOT_NULL_ERR(attr, -1);
H5VL_ObjDef_t *vol = (H5VL_ObjDef_t *)attr;
H5VL_AttrDef_t *attrDef = (H5VL_AttrDef_t *)(vol->m_ObjPtr);
attrDef->m_Data = (void *)buf;
gADIOS2CreateAttr(vol->m_FileIO, attrDef, vol->m_Path);
return 0;
}
void GetFromAttribute(void *attrObj, hid_t *ret_id, H5VL_attr_get_t get_type)
{
H5VL_AttrDef_t *attrDef = (H5VL_AttrDef_t *)attrObj;
switch (get_type)
{
case H5VL_ATTR_GET_SPACE: {
*ret_id = H5Scopy(attrDef->m_SpaceID);
break;
}
case H5VL_ATTR_GET_TYPE: {
*ret_id = H5Tcopy(attrDef->m_TypeID);
break;
}
default:
break;
}
}
herr_t H5VL_adios2_attr_get(void *obj, H5VL_attr_get_args_t *args, hid_t dxpl_id, void **req)
{
REQUIRE_NOT_NULL_ERR(obj, -1);
H5VL_ObjDef_t *vol = (H5VL_ObjDef_t *)obj;
switch (args->op_type)
{
case H5VL_ATTR_GET_SPACE: {
hid_t *ret_id = (hid_t *)args->args.get_space.space_id;
GetFromAttribute((vol->m_ObjPtr), ret_id, args->op_type);
return 0;
}
case H5VL_ATTR_GET_TYPE: {
hid_t *ret_id = (hid_t *)args->args.get_type.type_id;
GetFromAttribute((vol->m_ObjPtr), ret_id, args->op_type);
return 0;
}
default:
break;
}
switch (args->op_type)
{
case H5VL_ATTR_GET_NAME: {
char *buf = args->args.get_name.buf;
size_t *ret_val = (size_t *)args->args.get_name.attr_name_len;
const H5VL_loc_params_t *loc_params = &args->args.get_name.loc_params;
REQUIRE_NOT_NULL_ERR(loc_params, -1);
if (H5VL_OBJECT_BY_SELF == loc_params->type)
{
H5VL_AttrDef_t *attrDef = (H5VL_AttrDef_t *)(vol->m_ObjPtr);
*ret_val = strlen(attrDef->m_Name);
if (buf)
{
memcpy(buf, attrDef->m_Name, *ret_val);
}
}
else if (H5VL_OBJECT_BY_IDX == loc_params->type)
{
// The number of attrs is from H5Oget_info(), then iterate each by
// calling H5Aget_name_by_idx, to reach here
*ret_val = gGetNameOfNthAttr(vol, loc_params->loc_data.loc_by_idx.n, buf);
}
return 0;
}
default:
break;
}
ADIOS_VOL_NOT_SUPPORTED_ERR("UNABLE TO SUPPORT feature at attr_get\n");
return -1;
}
herr_t H5VL_adios2_attr_close(void *attr, hid_t dxpl_id, void **req)
{
REQUIRE_NOT_NULL_ERR(attr, -1);
H5VL_ObjDef_t *vol = (H5VL_ObjDef_t *)attr;
H5VL_AttrDef_t *attrDef = (H5VL_AttrDef_t *)(vol->m_ObjPtr);
free(attrDef->m_Name);
if (-1 != attrDef->m_SpaceID)
H5Sclose(attrDef->m_SpaceID);
free(attrDef);
attrDef = NULL;
gFreeVol(vol);
vol = NULL;
return 0;
}
herr_t H5VL_adios2_attr_specific(void *obj, const H5VL_loc_params_t *loc_params,
H5VL_attr_specific_args_t *args, hid_t dxpl_id, void **req)
{
REQUIRE_NOT_NULL_ERR(obj, -1);
H5VL_ObjDef_t *vol = (H5VL_ObjDef_t *)obj;
const char *attr_name;
adios2_attribute *attr;
switch (args->op_type)
{
case H5VL_ATTR_DELETE: {
attr_name = (const char *)args->args.del.name;
attr = gLocateAttrFrom(vol, attr_name);
if (NULL != attr)
{
if (NULL == vol->m_Path)
gADIOS2RemoveAttr(vol->m_FileIO, attr_name);
else
{
char fullPath[strlen(vol->m_Path) + 4 + strlen(attr_name)];
gGenerateFullPath(fullPath, vol->m_Path, attr_name);
gADIOS2RemoveAttr(vol->m_FileIO, fullPath);
}
return 0;
}
}
case H5VL_ATTR_EXISTS: {
hbool_t *ret = args->args.exists.exists;
attr_name = (const char *)args->args.exists.name;
attr = gLocateAttrFrom(vol, attr_name);
if (NULL == attr)
{
*ret = 0;
}
else
{
*ret = 1;
}
return 0;
}
default:
break;
}
return 0;
}
#endif
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