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Diffstat (limited to 'src/H5VLnative.c')
| -rw-r--r-- | src/H5VLnative.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/src/H5VLnative.c b/src/H5VLnative.c new file mode 100644 index 0000000..78eaee4 --- /dev/null +++ b/src/H5VLnative.c @@ -0,0 +1,182 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Copyright by The HDF Group. * + * 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 COPYING file, which can be found at the root of the source code * + * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. * + * If you do not have access to either file, you may request a copy from * + * help@hdfgroup.org. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +/* + * Purpose: The native VOL connector where access is to a single HDF5 file + * using HDF5 VFDs. + */ + +#include "H5private.h" /* Generic Functions */ +#include "H5Eprivate.h" /* Error handling */ +#include "H5Iprivate.h" /* IDs */ +#include "H5Pprivate.h" /* Property lists */ +#include "H5VLprivate.h" /* Virtual Object Layer */ + +#include "H5VLnative_private.h" /* Native VOL connector */ + + +/* The VOL connector identification number */ +static hid_t H5VL_NATIVE_ID_g = H5I_INVALID_HID; + +/* Prototypes */ +static herr_t H5VL__native_term(void); + +/* Native VOL connector class struct */ +static H5VL_class_t H5VL_native_cls_g = { + H5VL_NATIVE_VERSION, /* version */ + H5VL_NATIVE_VALUE, /* value */ + H5VL_NATIVE_NAME, /* name */ + 0, /* capability flags */ + NULL, /* initialize */ + H5VL__native_term, /* terminate */ + { /* info_cls */ + (size_t)0, /* info size */ + NULL, /* info copy */ + NULL, /* info compare */ + NULL, /* info free */ + NULL, /* info to str */ + NULL /* str to info */ + }, + { /* wrap_cls */ + NULL, /* get_object */ + NULL, /* get_wrap_ctx */ + NULL, /* wrap_object */ + NULL, /* unwrap_object */ + NULL /* free_wrap_ctx */ + }, + { /* attribute_cls */ + H5VL__native_attr_create, /* create */ + H5VL__native_attr_open, /* open */ + H5VL__native_attr_read, /* read */ + H5VL__native_attr_write, /* write */ + H5VL__native_attr_get, /* get */ + H5VL__native_attr_specific, /* specific */ + H5VL__native_attr_optional, /* optional */ + H5VL__native_attr_close /* close */ + }, + { /* dataset_cls */ + H5VL__native_dataset_create, /* create */ + H5VL__native_dataset_open, /* open */ + H5VL__native_dataset_read, /* read */ + H5VL__native_dataset_write, /* write */ + H5VL__native_dataset_get, /* get */ + H5VL__native_dataset_specific, /* specific */ + H5VL__native_dataset_optional, /* optional */ + H5VL__native_dataset_close /* close */ + }, + { /* datatype_cls */ + H5VL__native_datatype_commit, /* commit */ + H5VL__native_datatype_open, /* open */ + H5VL__native_datatype_get, /* get */ + H5VL__native_datatype_specific, /* specific */ + NULL, /* optional */ + H5VL__native_datatype_close /* close */ + }, + { /* file_cls */ + H5VL__native_file_create, /* create */ + H5VL__native_file_open, /* open */ + H5VL__native_file_get, /* get */ + H5VL__native_file_specific, /* specific */ + H5VL__native_file_optional, /* optional */ + H5VL__native_file_close /* close */ + }, + { /* group_cls */ + H5VL__native_group_create, /* create */ + H5VL__native_group_open, /* open */ + H5VL__native_group_get, /* get */ + H5VL__native_group_specific, /* specific */ + H5VL__native_group_optional, /* optional */ + H5VL__native_group_close /* close */ + }, + { /* link_cls */ + H5VL__native_link_create, /* create */ + H5VL__native_link_copy, /* copy */ + H5VL__native_link_move, /* move */ + H5VL__native_link_get, /* get */ + H5VL__native_link_specific, /* specific */ + NULL /* optional */ + }, + { /* object_cls */ + H5VL__native_object_open, /* open */ + H5VL__native_object_copy, /* copy */ + H5VL__native_object_get, /* get */ + H5VL__native_object_specific, /* specific */ + H5VL__native_object_optional /* optional */ + }, + { /* request_cls */ + NULL, /* wait */ + NULL, /* notify */ + NULL, /* cancel */ + NULL, /* specific */ + NULL, /* optional */ + NULL /* free */ + }, + { /* blob_cls */ + H5VL__native_blob_put, /* put */ + H5VL__native_blob_get, /* get */ + H5VL__native_blob_specific, /* specific */ + NULL /* optional */ + }, + NULL /* optional */ +}; + + +/*------------------------------------------------------------------------- + * Function: H5VL_native_register + * + * Purpose: Register the native VOL connector and retrieve an ID for it. + * + * Return: Success: The ID for the native connector + * Failure: H5I_INVALID_HID + * + *------------------------------------------------------------------------- + */ +hid_t +H5VL_native_register(void) +{ + hid_t ret_value = H5I_INVALID_HID; /* Return value */ + + FUNC_ENTER_NOAPI(H5I_INVALID_HID) + + /* Register the native VOL connector, if it isn't already */ + if(NULL == H5I_object_verify(H5VL_NATIVE_ID_g, H5I_VOL)) + if((H5VL_NATIVE_ID_g = H5VL_register_connector((const H5VL_class_t *)&H5VL_native_cls_g, TRUE, H5P_DEFAULT)) < 0) + HGOTO_ERROR(H5E_VOL, H5E_CANTINSERT, H5I_INVALID_HID, "can't create ID for native VOL connector") + + /* Set return value */ + ret_value = H5VL_NATIVE_ID_g; + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5VL_native_register() */ + + +/*--------------------------------------------------------------------------- + * Function: H5VL__native_term + * + * Purpose: Shut down the native VOL + * + * Returns: SUCCEED (Can't fail) + * + *--------------------------------------------------------------------------- + */ +static herr_t +H5VL__native_term(void) +{ + FUNC_ENTER_STATIC_NOERR + + /* Reset VOL ID */ + H5VL_NATIVE_ID_g = H5I_INVALID_HID; + + FUNC_LEAVE_NOAPI(SUCCEED) +} /* end H5VL__native_term() */ + |