/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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://www.hdfgroup.org/licenses.               *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*
 *      This file contains tests for:
 *          * H5Odisable_mdc_flushes()
 *          * H5Oenable_mdc_flushes()
 *          * H5Oare_mdc_flushes_disabled()
 */
#include "h5test.h"

/*
 * This file needs to access private information from the H5C package.
 * This file also needs to access the metadata cache testing code.
 */
#define H5C_FRIEND  /*suppress error about including H5Cpkg      */
#define H5C_TESTING /*suppress warning about H5C testing funcs*/
#define H5FD_FRIEND /*suppress error about including H5FDpkg      */
#define H5FD_TESTING

#include "H5Cpkg.h" /* Cache                */
#include "H5FDpkg.h"

/* ============ */
/* Test Defines */
/* ============ */

#define FILENAME     "test_cork.h5"
#define ATTR         "ATTR"
#define DSET         "DSET"
#define DSET_BT1     "DSET_BT1"
#define DSET_COMPACT "DSET_COMPACT"
#define DSET_CONTIG  "DSET_CONTIG"
#define DSET_EA      "DSET_EA"
#define DSET_BT2     "DSET_BT2"
#define DSET_FA      "DSET_FA"
#define DSET_NONE    "DSET_NONE"
#define GRP          "GRP"
#define GRP2         "GRP2"
#define GRP3         "GRP3"
#define DT           "DT"
#define DT2          "DT2"
#define DT3          "DT3"
#define GRP_ATTR     "GRP_ATTR"
#define DSET_ATTR    "DSET_ATTR"
#define DT_ATTR      "DT_ATTR"

#define RANK  2
#define DIM0  5
#define DIM1  10
#define DIMS0 50
#define DIMS1 100

/* ===================== */
/* Function Declarations */
/* ===================== */

/* Tests */
static unsigned test_objs_cork(bool swmr, bool new_format);
static unsigned test_dset_cork(bool swmr, bool new_format);
static unsigned verify_old_dset_cork(void);
static unsigned verify_obj_dset_cork(bool swmr);
static unsigned verify_dset_cork(bool swmr, bool new_format);
static unsigned verify_group_cork(bool swmr);
static unsigned verify_named_cork(bool swmr);
static unsigned verify_multiple_cork(bool swmr);

/*-------------------------------------------------------------------------
 * Function:    verify_old_dset_cork
 *
 * Purpose:     This function verifies corking operation for datasets
 *      created with old library format.  Cache entries associated with the
 *      object tag are checked for the correct cork status.
 *
 * Return:      0 on Success, 1 on Failure
 *
 *-------------------------------------------------------------------------
 */
static unsigned
verify_old_dset_cork(void)
{
    /* Variable Declarations */
    hid_t fid = H5I_INVALID_HID;                                                 /* File ID */
    hid_t did = H5I_INVALID_HID, did2 = H5I_INVALID_HID, did3 = H5I_INVALID_HID; /* Dataset IDs */
    hid_t dcpl = H5I_INVALID_HID, dcpl2 = H5I_INVALID_HID,
          dcpl3     = H5I_INVALID_HID; /* Dataset creation property lists */
    hid_t       sid = H5I_INVALID_HID, sid2 = H5I_INVALID_HID, sid3 = H5I_INVALID_HID; /* Dataspace IDs */
    hsize_t     dims[2]       = {100, 20};            /* Dataset dimension sizes */
    hsize_t     max_dims[2]   = {100, H5S_UNLIMITED}; /* Dataset maximum dimension sizes */
    hsize_t     chunk_dims[2] = {2, 5};               /* Dataset chunked dimension sizes */
    int       **buf           = NULL;                 /* Data buffer (pointers to fake 2D array) */
    int        *buf_data      = NULL;                 /* Data buffer (actual data) */
    int         i = 0, j = 0;                         /* Local index variables */
    H5O_info2_t oinfo, oinfo2, oinfo3;                /* Object metadata information */
    hsize_t     dims2[2] = {8, 16};                   /* Dataset dimension sizes */

    /* Testing Macro */
    TESTING("cork status for datasets with old format");

    /* Create the file */
    if ((fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Create dcpl */
    if ((dcpl = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        FAIL_STACK_ERROR;

    /* Set to use chunked dataset */
    if (H5Pset_chunk(dcpl, 2, chunk_dims) < 0)
        FAIL_STACK_ERROR;

    /* Create chunked dataset with v1-btree indexing: DSET_BT1 */
    if ((sid = H5Screate_simple(2, dims, max_dims)) < 0)
        TEST_ERROR;
    if ((did = H5Dcreate2(fid, DSET_BT1, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Get dataset object header address: DSET_BT1 */
    if (H5Oget_info3(did, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;

    /* Cork the dataset: DSET_BT1 */
    if (H5Odisable_mdc_flushes(did) < 0)
        TEST_ERROR;

    /* Verify cork status */
    if (H5C__verify_cork_tag_test(fid, oinfo.token, true) < 0)
        TEST_ERROR;

    /* Set up data array */
    if (NULL == (buf_data = (int *)calloc(100 * 20, sizeof(int))))
        TEST_ERROR;
    if (NULL == (buf = (int **)calloc(100, sizeof(buf_data))))
        TEST_ERROR;
    for (i = 0; i < 100; i++)
        buf[i] = buf_data + (i * 20);

    /* Initialize data buffer */
    for (i = 0; i < (int)dims[0]; i++)
        for (j = 0; j < (int)dims[1]; j++)
            buf[i][j] = (i + 1) * (j + 1);

    /* Write to the dataset: DSET_BT1 */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf_data) < 0)
        TEST_ERROR;

    /* Verify the cork status for DSET_BT1 */
    if (H5C__verify_cork_tag_test(fid, oinfo.token, true) < 0)
        TEST_ERROR;

    /* Create compact dataset: DSET_COMPACT */
    if ((sid2 = H5Screate_simple(2, dims2, NULL)) < 0)
        FAIL_STACK_ERROR;
    if ((dcpl2 = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        FAIL_STACK_ERROR;
    if (H5Pset_layout(dcpl2, H5D_COMPACT) < 0)
        FAIL_STACK_ERROR;
    if (H5Pset_alloc_time(dcpl2, H5D_ALLOC_TIME_EARLY) < 0)
        FAIL_STACK_ERROR;
    if ((did2 = H5Dcreate2(fid, DSET_COMPACT, H5T_NATIVE_INT, sid2, H5P_DEFAULT, dcpl2, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Get dataset object address */
    if (H5Oget_info3(did2, &oinfo2, H5O_INFO_BASIC) < 0)
        TEST_ERROR;

    /* Cork the dataset: DSET_COMPACT */
    if (H5Odisable_mdc_flushes(did2) < 0)
        TEST_ERROR;

    /* Verify cork status */
    if (H5C__verify_cork_tag_test(fid, oinfo2.token, true) < 0)
        TEST_ERROR;

    /* Closing */
    if (H5Dclose(did) < 0)
        TEST_ERROR;
    if (H5Sclose(sid) < 0)
        TEST_ERROR;
    if (H5Pclose(dcpl) < 0)
        TEST_ERROR;

    if (H5Dclose(did2) < 0)
        TEST_ERROR;
    if (H5Sclose(sid2) < 0)
        TEST_ERROR;
    if (H5Pclose(dcpl2) < 0)
        TEST_ERROR;

    if (H5Fclose(fid) < 0)
        TEST_ERROR;

    /* Reopen the file */
    if ((fid = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Open and write to the dataset: DSET_BT1 */
    if ((did = H5Dopen2(fid, DSET_BT1, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Create contiguous dataset: DSET_CONTIG */
    if ((sid3 = H5Screate_simple(2, dims2, NULL)) < 0)
        FAIL_STACK_ERROR;
    if ((dcpl3 = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        FAIL_STACK_ERROR;
    if (H5Pset_layout(dcpl3, H5D_CONTIGUOUS) < 0)
        FAIL_STACK_ERROR;
    if ((did3 = H5Dcreate2(fid, DSET_CONTIG, H5T_NATIVE_INT, sid3, H5P_DEFAULT, dcpl3, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Get dataset object address: DSET_CONTIG */
    if (H5Oget_info3(did3, &oinfo3, H5O_INFO_BASIC) < 0)
        TEST_ERROR;

    /* Cork the dataset: DSET_CONTIG */
    if (H5Odisable_mdc_flushes(did3) < 0)
        TEST_ERROR;

    /* Verify the cork status for DSET_CONTIG */
    if (H5C__verify_cork_tag_test(fid, oinfo3.token, true) < 0)
        TEST_ERROR;

    /* Verify the cork status for DSET_BT1 */
    if (H5C__verify_cork_tag_test(fid, oinfo.token, false) < 0)
        TEST_ERROR;

    /* Un-cork the dataset: DSET_CONTIG */
    if (H5Oenable_mdc_flushes(did3) < 0)
        TEST_ERROR;

    /* Verify the cork status for DSET_CONTIG */
    if (H5C__verify_cork_tag_test(fid, oinfo3.token, false) < 0)
        TEST_ERROR;

    /* Closing */
    if (H5Dclose(did3) < 0)
        TEST_ERROR;
    if (H5Pclose(dcpl3) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;
    if (H5Fclose(fid) < 0)
        TEST_ERROR;

    free(buf);
    free(buf_data);

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Sclose(sid);
        H5Sclose(sid2);
        H5Sclose(sid3);
        H5Dclose(did);
        H5Dclose(did2);
        H5Dclose(did3);
        H5Pclose(dcpl);
        H5Pclose(dcpl2);
        H5Pclose(dcpl3);
        H5Fclose(fid);
    }
    H5E_END_TRY

    free(buf);
    free(buf_data);

    return 1;
} /* verify_old_dset_cork */

/*-------------------------------------------------------------------------
 * Function:    verify_obj_dset_cork
 *
 * Purpose:     This function verifies corking operations for dataset objects.
 *      Cache entries associated with the object tag are checked
 *              for the correct cork status.
 *
 * Return:      0 on Success, 1 on Failure
 *
 *-------------------------------------------------------------------------
 */
static unsigned
verify_obj_dset_cork(bool swmr)
{
    /* Variable Declarations */
    hid_t       fid  = H5I_INVALID_HID;                        /* File ID */
    hid_t       fapl = H5I_INVALID_HID;                        /* File access property list */
    hid_t       aid  = H5I_INVALID_HID;                        /* Attribute ID */
    hid_t       sid = H5I_INVALID_HID, sid2 = H5I_INVALID_HID; /* Dataspace IDs */
    hid_t       did = H5I_INVALID_HID, did2 = H5I_INVALID_HID; /* Dataset IDs */
    hid_t       oid          = H5I_INVALID_HID;                /* Object ID */
    hid_t       dcpl2        = H5I_INVALID_HID;                /* Dataset creation property list */
    int         i            = 0;                              /* Local index variable */
    hsize_t     dim[1]       = {100};                          /* Dataset dimension size */
    hsize_t     chunk_dim[1] = {7};                            /* Dataset chunk dimension size */
    H5O_info2_t oinfo, oinfo2;                                 /* Object metadata information */
    char        attrname[500];                                 /* Name of attribute */
    unsigned    flags;                                         /* File access flags */

    if (swmr) {
        TESTING("cork status for dataset objects with attributes (SWMR)");
    }
    else {
        TESTING("cork status for dataset objects with attributes");
    }

    /* Create fapl */
    if ((fapl = H5Pcreate(H5P_FILE_ACCESS)) < 0)
        TEST_ERROR;
    /* Set to use latest format */
    if (H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
        TEST_ERROR;

    /* Create the file with/without SWMR access */
    flags = H5F_ACC_TRUNC;
    if (swmr)
        flags |= H5F_ACC_SWMR_WRITE;
    if ((fid = H5Fcreate(FILENAME, flags, H5P_DEFAULT, fapl)) < 0)
        TEST_ERROR;

    /* Create dataspace */
    if ((sid = H5Screate(H5S_SCALAR)) < 0)
        TEST_ERROR;

    /* Create dataset: DSET */
    if ((did = H5Dcreate2(fid, DSET, H5T_NATIVE_UCHAR, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Get dataset object header address */
    if (H5Oget_info3(did, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;

    /* Verify cork status of the dataset: DSET */
    if (H5C__verify_cork_tag_test(fid, oinfo.token, false) < 0)
        TEST_ERROR;

    /* Cork the dataset: DSET */
    if (H5Odisable_mdc_flushes(did) < 0)
        TEST_ERROR;

    /* Attach and write to an attribute to the dataset: DSET */
    if ((aid = H5Acreate2(did, ATTR, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Verify cork status of the dataset: DSET */
    if (H5C__verify_cork_tag_test(fid, oinfo.token, true) < 0)
        TEST_ERROR;

    /* Close the attribute */
    if (H5Aclose(aid) < 0)
        TEST_ERROR;

    /* Verify cork status of the dataset: DSET */
    if (H5C__verify_cork_tag_test(fid, oinfo.token, true) < 0)
        TEST_ERROR;

    /* Create dcpl */
    if ((dcpl2 = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    /* Set to early allocation for dataset space */
    if (H5Pset_alloc_time(dcpl2, H5D_ALLOC_TIME_EARLY) < 0)
        TEST_ERROR;

    /* Create chunked dataset with implicit indexing: DSET_NONE */
    if (H5Pset_chunk(dcpl2, 1, chunk_dim) < 0)
        FAIL_STACK_ERROR;
    if ((sid2 = H5Screate_simple(1, dim, NULL)) < 0)
        TEST_ERROR;
    if ((did2 = H5Dcreate2(fid, DSET_NONE, H5T_NATIVE_INT, sid2, H5P_DEFAULT, dcpl2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Get dataset object header address */
    if (H5Oget_info3(did2, &oinfo2, H5O_INFO_BASIC) < 0)
        TEST_ERROR;

    /* Cork the dataset: DSET_NONE */
    if (H5Odisable_mdc_flushes(did2) < 0)
        TEST_ERROR;

    /* Attach 8 attributes to the dataset */
    for (i = 0; i < 8; i++) {
        snprintf(attrname, sizeof(attrname), "attr %d", i);
        if ((aid = H5Acreate2(did2, attrname, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
            TEST_ERROR;
        if (H5Awrite(aid, H5T_NATIVE_INT, &i) < 0)
            TEST_ERROR;
        if (H5Aclose(aid) < 0)
            TEST_ERROR;
    } /* end for */

    /* Verify cork status of the dataset: DSET_NONE */
    if (H5C__verify_cork_tag_test(fid, oinfo2.token, true) < 0)
        TEST_ERROR;

    /* Closing */
    if (H5Oclose(did) < 0)
        TEST_ERROR;
    if (H5Oclose(did2) < 0)
        TEST_ERROR;
    if (H5Sclose(sid) < 0)
        TEST_ERROR;
    if (H5Sclose(sid2) < 0)
        TEST_ERROR;
    if (H5Pclose(dcpl2) < 0)
        TEST_ERROR;
    if (H5Fclose(fid) < 0)
        TEST_ERROR;

    /* Re-open the file */
    flags = H5F_ACC_RDWR;
    if (swmr)
        flags |= H5F_ACC_SWMR_WRITE;
    if ((fid = H5Fopen(FILENAME, flags, fapl)) < 0)
        TEST_ERROR;

    /* Open the dataset object: DSET_NONE */
    if ((oid = H5Oopen(fid, DSET_NONE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Verify cork status of the dataset: DSET */
    if (H5C__verify_cork_tag_test(fid, oinfo2.token, false) < 0)
        TEST_ERROR;

    /* Open the attribute attached to the dataset object: DSET_NONE */
    if ((aid = H5Aopen_by_idx(oid, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)4, H5P_DEFAULT, H5P_DEFAULT)) <
        0)
        TEST_ERROR;

    /* Cork the dataset: DSET_NONE */
    if (H5Odisable_mdc_flushes(oid) < 0)
        TEST_ERROR;

    /* Verify cork status of the dataset: DSET_NONE */
    if (H5C__verify_cork_tag_test(fid, oinfo2.token, true) < 0)
        TEST_ERROR;

    /* Close the attribute */
    if (H5Aclose(aid) < 0)
        TEST_ERROR;

    /* Verify cork status of the dataset: DSET */
    if (H5C__verify_cork_tag_test(fid, oinfo.token, true) < 0)
        TEST_ERROR;

    /* Closing */
    if (H5Oclose(oid) < 0)
        TEST_ERROR;
    if (H5Pclose(fapl) < 0)
        TEST_ERROR;
    if (H5Fclose(fid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Aclose(aid);
        H5Sclose(sid);
        H5Sclose(sid2);
        H5Dclose(did);
        H5Dclose(did2);
        H5Oclose(oid);
        H5Pclose(dcpl2);
        H5Pclose(fapl);
        H5Fclose(fid);
    }
    H5E_END_TRY
    return 1;
} /* verify_obj_dset_cork */

/*-------------------------------------------------------------------------
 * Function:    verify_dset_cork
 *
 * Purpose:     This function verifies corking operations for chunked datasets
 *      with different indexing types.
 *      Cache entries associated with the object tag are checked
 *              for the correct cork status.
 *
 * Return:      0 on Success, 1 on Failure
 *
 *-------------------------------------------------------------------------
 */
static unsigned
verify_dset_cork(bool swmr, bool new_format)
{
    /* Variable Declarations */
    hid_t       fid  = H5I_INVALID_HID; /* File ID */
    hid_t       fapl = H5I_INVALID_HID; /* File access property list */
    hid_t       did = H5I_INVALID_HID, did2 = H5I_INVALID_HID, did3 = H5I_INVALID_HID; /* Dataset IDs */
    hid_t       dcpl = H5I_INVALID_HID; /* Dataset creation property list */
    hid_t       sid = H5I_INVALID_HID, sid2 = H5I_INVALID_HID, sid3 = H5I_INVALID_HID; /* Dataspace IDs */
    hsize_t     dims[2]       = {100, 20};            /* Dataset dimension sizes */
    hsize_t     max_dims[2]   = {100, H5S_UNLIMITED}; /* Dataset maximum dimension sizes */
    hsize_t     chunk_dims[2] = {2, 5};               /* Dataset chunked dimension sizes */
    int       **buf           = NULL;                 /* Data buffer (pointers to fake 2D array) */
    int        *buf_data      = NULL;                 /* Data buffer (actual data) */
    int         i = 0, j = 0;                         /* Local index variables */
    H5O_info2_t oinfo, oinfo2, oinfo3;                /* Object metadata information */
    unsigned    flags;                                /* File access flags */

    /* Testing Macro */
    if (swmr) {
        if (new_format) {
            TESTING("cork status for chunked datasets with different indexing types (SWMR & latest)");
        }
        else {
            TESTING("cork status for chunked datasets with different indexing types (SWMR & non-latest)");
        } /* end if */
    }
    else {
        if (new_format) {
            TESTING("cork status for chunked datasets with different indexing types (non-SWMR & latest)");
        }
        else {
            TESTING("cork status for chunked datasets with different indexing types (non-SWMR & non-latest)");
        } /* end if */
    }     /* end if */

    /* Create fapl */
    if ((fapl = H5Pcreate(H5P_FILE_ACCESS)) < 0)
        TEST_ERROR;
    if (new_format) {
        /* Set to use latest format */
        if (H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
            TEST_ERROR;
    } /* end if */

    /* Create the file */
    flags = H5F_ACC_TRUNC;
    if (swmr)
        flags |= H5F_ACC_SWMR_WRITE;
    if ((fid = H5Fcreate(FILENAME, flags, H5P_DEFAULT, fapl)) < 0)
        TEST_ERROR;

    /* Create dcpl */
    if ((dcpl = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        FAIL_STACK_ERROR;

    /* Set to use chunked dataset */
    if (H5Pset_chunk(dcpl, 2, chunk_dims) < 0)
        FAIL_STACK_ERROR;

    /* Create chunked dataset with extensive array indexing: DSET_EA */
    if ((sid = H5Screate_simple(2, dims, max_dims)) < 0)
        TEST_ERROR;
    if ((did = H5Dcreate2(fid, DSET_EA, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Get dataset object header address: DSET_EA */
    if (H5Oget_info3(did, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;

    /* Cork the dataset: DSET_EA */
    if (H5Odisable_mdc_flushes(did) < 0)
        TEST_ERROR;

    /* Verify cork status */
    if (H5C__verify_cork_tag_test(fid, oinfo.token, true) < 0)
        TEST_ERROR;

    /* Create chunked dataset with fixed array indexing: DSET_FA */
    if ((sid2 = H5Screate_simple(2, dims, NULL)) < 0)
        TEST_ERROR;
    if ((did2 = H5Dcreate2(fid, DSET_FA, H5T_NATIVE_INT, sid2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Get dataset object header address: DSET_FA */
    if (H5Oget_info3(did2, &oinfo2, H5O_INFO_BASIC) < 0)
        TEST_ERROR;

    /* Cork the dataset: DSET_FA */
    if (H5Odisable_mdc_flushes(did2) < 0)
        TEST_ERROR;

    /* Uncork the dataset: DSET_EA */
    if (H5Oenable_mdc_flushes(did) < 0)
        TEST_ERROR;

    /* Verify the cork status for DSET_FA */
    if (H5C__verify_cork_tag_test(fid, oinfo2.token, true) < 0)
        TEST_ERROR;

    /* Verify the cork status for DSET_EA */
    if (H5C__verify_cork_tag_test(fid, oinfo.token, false) < 0)
        TEST_ERROR;

    /* Create chunked dataset with v2-Btree indexing */
    max_dims[0] = H5S_UNLIMITED;
    if ((sid3 = H5Screate_simple(2, dims, max_dims)) < 0)
        TEST_ERROR;
    if ((did3 = H5Dcreate2(fid, DSET_BT2, H5T_NATIVE_INT, sid3, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Get dataset object header address: DSET_BT2 */
    if (H5Oget_info3(did3, &oinfo3, H5O_INFO_BASIC) < 0)
        TEST_ERROR;

    /* Cork the dataset: DSET_BT2 */
    if (H5Odisable_mdc_flushes(did3) < 0)
        TEST_ERROR;

    /* Verify the cork status for DSET_BT2 */
    if (H5C__verify_cork_tag_test(fid, oinfo3.token, true) < 0)
        TEST_ERROR;

    /* Closing */
    if (H5Dclose(did3) < 0)
        TEST_ERROR;
    if (H5Sclose(sid3) < 0)
        TEST_ERROR;

    if (H5Dclose(did2) < 0)
        TEST_ERROR;
    if (H5Sclose(sid2) < 0)
        TEST_ERROR;

    if (H5Dclose(did) < 0)
        TEST_ERROR;
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    if (H5Pclose(dcpl) < 0)
        TEST_ERROR;
    if (H5Fclose(fid) < 0)
        TEST_ERROR;

    /* Reopen the file */
    flags = H5F_ACC_RDWR;
    if (swmr)
        flags |= H5F_ACC_SWMR_WRITE;
    if ((fid = H5Fopen(FILENAME, flags, fapl)) < 0)
        TEST_ERROR;

    /* Set up data array */
    if (NULL == (buf_data = (int *)calloc(100 * 20, sizeof(int))))
        TEST_ERROR;
    if (NULL == (buf = (int **)calloc(100, sizeof(buf_data))))
        TEST_ERROR;
    for (i = 0; i < 100; i++)
        buf[i] = buf_data + (i * 20);

    /* Initialize data buffer */
    for (i = 0; i < (int)dims[0]; i++)
        for (j = 0; j < (int)dims[1]; j++)
            buf[i][j] = (i + 1) * (j + 1);

    /* Open and write to the dataset: DSET_EA */
    if ((did = H5Dopen2(fid, DSET_EA, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf_data) < 0)
        TEST_ERROR;

    /* Verify the cork status for DSET_EA */
    if (H5C__verify_cork_tag_test(fid, oinfo.token, false) < 0)
        TEST_ERROR;

    /* Open and write to the dataset: DSET_FA */
    if ((did2 = H5Dopen2(fid, DSET_FA, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Dwrite(did2, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf_data) < 0)
        TEST_ERROR;

    /* Cork the dataset: DSET_FA */
    if (H5Odisable_mdc_flushes(did2) < 0)
        TEST_ERROR;

    /* Verify the cork status for DSET_FA */
    if (H5C__verify_cork_tag_test(fid, oinfo2.token, true) < 0)
        TEST_ERROR;

    /* Open and write to the dataset: DSET_BT2 */
    if ((did3 = H5Dopen2(fid, DSET_BT2, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Dwrite(did3, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf_data) < 0)
        TEST_ERROR;

    /* Verify the cork status for DSET_BT2 */
    if (H5C__verify_cork_tag_test(fid, oinfo3.token, false) < 0)
        TEST_ERROR;

    /* Cork the dataset: DSET_BT2 */
    if (H5Odisable_mdc_flushes(did3) < 0)
        TEST_ERROR;

    /* Verify the cork status for DSET_BT2 */
    if (H5C__verify_cork_tag_test(fid, oinfo3.token, true) < 0)
        TEST_ERROR;

    /* Closing */
    if (H5Dclose(did) < 0)
        TEST_ERROR;
    if (H5Dclose(did2) < 0)
        TEST_ERROR;
    if (H5Dclose(did3) < 0)
        TEST_ERROR;
    if (H5Pclose(fapl) < 0)
        TEST_ERROR;
    if (H5Fclose(fid) < 0)
        TEST_ERROR;

    free(buf);
    free(buf_data);

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Sclose(sid);
        H5Sclose(sid2);
        H5Sclose(sid3);
        H5Dclose(did);
        H5Dclose(did2);
        H5Dclose(did3);
        H5Pclose(dcpl);
        H5Pclose(fapl);
        H5Fclose(fid);
    }
    H5E_END_TRY

    free(buf);
    free(buf_data);

    return 1;
} /* verify_dset_cork */

/*-------------------------------------------------------------------------
 * Function:    verify_group_cork
 *
 * Purpose:     This function verifies corking operations for groups.
 *      Cache entries associated with the object tag are checked
 *              for the correct cork status.
 *
 * Return:      0 on Success, 1 on Failure
 *
 *-------------------------------------------------------------------------
 */
static unsigned
verify_group_cork(bool swmr)
{
    /* Variable Declarations */
    hid_t       fid  = H5I_INVALID_HID; /* File ID */
    hid_t       fapl = H5I_INVALID_HID; /* File access property list */
    hid_t       gid = H5I_INVALID_HID, gid2 = H5I_INVALID_HID, gid3 = H5I_INVALID_HID; /* Group IDs */
    H5O_info2_t oinfo, oinfo2, oinfo3; /* Object metadata information */
    hid_t       aid = H5I_INVALID_HID; /* Attribute ID */
    hid_t       sid = H5I_INVALID_HID; /* Dataspace ID */
    char        attrname[500];         /* Name of attribute */
    unsigned    flags;                 /* File access flags */
    int         i = 0;                 /* Local index variable */

    /* Testing Macro */
    if (swmr) {
        TESTING("cork status for groups (SWMR)");
    }
    else {
        TESTING("cork status for groups");
    }

    /* Create fapl */
    if ((fapl = H5Pcreate(H5P_FILE_ACCESS)) < 0)
        TEST_ERROR;
    /* Set to use latest format */
    if (H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
        TEST_ERROR;

    /* Create the file */
    flags = H5F_ACC_TRUNC;
    if (swmr)
        flags |= H5F_ACC_SWMR_WRITE;
    if ((fid = H5Fcreate(FILENAME, flags, H5P_DEFAULT, fapl)) < 0)
        TEST_ERROR;

    /* Create 3 groups */
    if ((gid = H5Gcreate2(fid, GRP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((gid2 = H5Gcreate2(gid, GRP2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((gid3 = H5Gcreate2(gid2, GRP3, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Cork the second group: GRP2 */
    if (H5Odisable_mdc_flushes(gid2) < 0)
        TEST_ERROR;

    /* Get group object header addresses */
    if (H5Oget_info3(gid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Oget_info3(gid2, &oinfo2, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Oget_info3(gid3, &oinfo3, H5O_INFO_BASIC) < 0)
        TEST_ERROR;

    /* Verify cork status of the groups */
    if (H5C__verify_cork_tag_test(fid, oinfo.token, false) < 0)
        TEST_ERROR;
    if (H5C__verify_cork_tag_test(fid, oinfo2.token, true) < 0)
        TEST_ERROR;
    if (H5C__verify_cork_tag_test(fid, oinfo3.token, false) < 0)
        TEST_ERROR;

    /* Close the second group: GRP2 */
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;

    /* Re-open the second group: GRP2 */
    if ((gid2 = H5Gopen2(gid, GRP2, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Verify cork status of the second group: GRP2 */
    if (H5C__verify_cork_tag_test(fid, oinfo2.token, false) < 0)
        TEST_ERROR;

    /* Closing */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;
    if (H5Gclose(gid3) < 0)
        TEST_ERROR;
    if (H5Fclose(fid) < 0)
        TEST_ERROR;

    /* Re-open the file and the three groups */
    flags = H5F_ACC_RDWR;
    if (swmr)
        flags |= H5F_ACC_SWMR_WRITE;
    if ((fid = H5Fopen(FILENAME, flags, fapl)) < 0)
        FAIL_STACK_ERROR;
    if ((gid = H5Gopen2(fid, GRP, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;
    if ((gid2 = H5Gopen2(gid, GRP2, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;
    if ((gid3 = H5Gopen2(gid2, GRP3, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Create dataspace */
    if ((sid = H5Screate(H5S_SCALAR)) < 0)
        TEST_ERROR;

    /* Attach 8 attributes to the third group: GRP3 */
    for (i = 0; i < 8; i++) {
        snprintf(attrname, sizeof(attrname), "attr %d", i);
        if ((aid = H5Acreate2(gid3, attrname, H5T_NATIVE_UINT, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
            TEST_ERROR;
        if (H5Awrite(aid, H5T_NATIVE_UINT, &i) < 0)
            TEST_ERROR;
        /* Cork the third group while attaching attributes */
        if (i == 3) {
            if (H5Odisable_mdc_flushes(gid3) < 0)
                TEST_ERROR;
            if (H5C__verify_cork_tag_test(fid, oinfo3.token, true) < 0)
                TEST_ERROR;
        }
        if (H5Aclose(aid) < 0)
            TEST_ERROR;
    } /* end for */

    /* Verify cork status of the third group: GRP3 */
    if (H5C__verify_cork_tag_test(fid, oinfo3.token, true) < 0)
        TEST_ERROR;

    /* Closing */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;
    if (H5Gclose(gid3) < 0)
        TEST_ERROR;
    if (H5Sclose(sid) < 0)
        TEST_ERROR;
    if (H5Pclose(fapl) < 0)
        TEST_ERROR;
    if (H5Fclose(fid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Gclose(gid);
        H5Gclose(gid2);
        H5Gclose(gid3);
        H5Sclose(sid);
        H5Pclose(fapl);
        H5Fclose(fid);
    }
    H5E_END_TRY
    return 1;
} /* verify_group_cork */

/*-------------------------------------------------------------------------
 * Function:    verify_named_cork
 *
 * Purpose:     This function verifies corking operations for named datatypes.
 *      Cache entries associated with the object tag are checked
 *              for the correct cork status.
 *
 * Return:      0 on Success, 1 on Failure
 *
 *-------------------------------------------------------------------------
 */
static unsigned
verify_named_cork(bool swmr)
{
    /* Variable Declarations */
    hid_t       fid  = H5I_INVALID_HID; /* File ID */
    hid_t       fapl = H5I_INVALID_HID; /* File access property list */
    hid_t       tid = H5I_INVALID_HID, tid2 = H5I_INVALID_HID, tid3 = H5I_INVALID_HID; /* Datatype IDs */
    hid_t       gid = H5I_INVALID_HID, gid2 = H5I_INVALID_HID;                         /* Group IDs */
    H5O_info2_t oinfo, oinfo2, oinfo3, oinfo4; /* Object metadata information */
    hid_t       aid = H5I_INVALID_HID;         /* Attribute ID */
    hid_t       sid = H5I_INVALID_HID;         /* Dataspace ID */
    hid_t       did = H5I_INVALID_HID;         /* Dataset ID */
    char        attrname[500];                 /* Name of attribute */
    unsigned    flags;                         /* File access flags */
    int         i = 0;                         /* Local index variable */

    /* Testing Macro */
    if (swmr) {
        TESTING("cork status for named datatypes (SWMR)");
    }
    else {
        TESTING("cork status for named datatypes");
    }

    /* Create fapl */
    if ((fapl = H5Pcreate(H5P_FILE_ACCESS)) < 0)
        TEST_ERROR;
    /* Set to use latest format */
    if (H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
        TEST_ERROR;

    /* Create the file */
    flags = H5F_ACC_TRUNC;
    if (swmr)
        flags |= H5F_ACC_SWMR_WRITE;
    if ((fid = H5Fcreate(FILENAME, flags, H5P_DEFAULT, fapl)) < 0)
        TEST_ERROR;

    /* Create 3 copies of datatypes */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((tid2 = H5Tcopy(H5T_NATIVE_LONG)) < 0)
        TEST_ERROR;
    if ((tid3 = H5Tcopy(H5T_NATIVE_CHAR)) < 0)
        TEST_ERROR;

    /* Commit datatype /DT */
    if (H5Tcommit2(fid, DT, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* Create /GRP */
    if ((gid = H5Gcreate2(fid, GRP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    /* Commit datatype /GRP/DT2 */
    if (H5Tcommit2(gid, DT2, tid2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* Create /GRP/GRP2 */
    if ((gid2 = H5Gcreate2(gid, GRP2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    /* Commit datatype /GRP/GRP2/DT3 */
    if (H5Tcommit2(gid2, DT3, tid3, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* Cork 2 named datatypes: /DT and /GRP/GRP2/DT3 */
    if (H5Odisable_mdc_flushes(tid) < 0)
        TEST_ERROR;
    if (H5Odisable_mdc_flushes(tid3) < 0)
        TEST_ERROR;

    /* Get named datatype object header addresses */
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid2, &oinfo2, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid3, &oinfo3, H5O_INFO_BASIC) < 0)
        TEST_ERROR;

    /* Verify cork status of the named datatypes */
    if (H5C__verify_cork_tag_test(fid, oinfo.token, true) < 0)
        TEST_ERROR;
    if (H5C__verify_cork_tag_test(fid, oinfo2.token, false) < 0)
        TEST_ERROR;
    if (H5C__verify_cork_tag_test(fid, oinfo3.token, true) < 0)
        TEST_ERROR;

    /* Close the datatypes */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;
    if (H5Tclose(tid3) < 0)
        TEST_ERROR;

    /* Re-open the named datatypes */
    if ((tid = H5Topen2(fid, DT, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;
    if ((tid2 = H5Topen2(gid, DT2, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;
    if ((tid3 = H5Topen2(gid2, DT3, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Verify cork status of the named datatypes */
    if (H5C__verify_cork_tag_test(fid, oinfo.token, false) < 0)
        TEST_ERROR;
    if (H5C__verify_cork_tag_test(fid, oinfo2.token, false) < 0)
        TEST_ERROR;
    if (H5C__verify_cork_tag_test(fid, oinfo3.token, false) < 0)
        TEST_ERROR;

    /* Closing */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;
    if (H5Tclose(tid3) < 0)
        TEST_ERROR;
    if (H5Gclose(gid) < 0)
        TEST_ERROR;
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;
    if (H5Fclose(fid) < 0)
        TEST_ERROR;

    /* Re-open the file and the three groups */
    flags = H5F_ACC_RDWR;
    if (swmr)
        flags |= H5F_ACC_SWMR_WRITE;
    if ((fid = H5Fopen(FILENAME, flags, fapl)) < 0)
        FAIL_STACK_ERROR;
    if ((gid = H5Gopen2(fid, GRP, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;
    if ((gid2 = H5Gopen2(gid, GRP2, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Re-open the named datatypes */
    if ((tid = H5Topen2(fid, DT, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;
    if ((tid2 = H5Topen2(gid, DT2, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;
    if ((tid3 = H5Topen2(gid2, DT3, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Cork the datatype: DT2 */
    if (H5Odisable_mdc_flushes(tid2) < 0)
        TEST_ERROR;

    /* Create dataspace */
    if ((sid = H5Screate(H5S_SCALAR)) < 0)
        TEST_ERROR;

    /* Attach 8 attributes to datatype: DT3 */
    for (i = 0; i < 8; i++) {
        snprintf(attrname, sizeof(attrname), "attr %d", i);
        if ((aid = H5Acreate2(tid3, attrname, H5T_NATIVE_UINT, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
            TEST_ERROR;
        if (H5Awrite(aid, H5T_NATIVE_UINT, &i) < 0)
            TEST_ERROR;
        /* Cork the datatype while attaching attributes */
        if (i == 3) {
            if (H5Odisable_mdc_flushes(tid3) < 0)
                TEST_ERROR;
            if (H5C__verify_cork_tag_test(fid, oinfo3.token, true) < 0)
                TEST_ERROR;
        }
        if (H5Aclose(aid) < 0)
            TEST_ERROR;
    } /* end for */

    /* Create a dataset with named datatype: DT */
    if ((did = H5Dcreate2(fid, DSET, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Get dataset object header address */
    if (H5Oget_info3(did, &oinfo4, H5O_INFO_BASIC) < 0)
        TEST_ERROR;

    /* Cork the dataset: DSET */
    if (H5Odisable_mdc_flushes(did) < 0)
        TEST_ERROR;

    /* Verify cork status of the datatype: DT */
    if (H5C__verify_cork_tag_test(fid, oinfo.token, false) < 0)
        TEST_ERROR;
    /* Verify cork status of the datatype: DT2 */
    if (H5C__verify_cork_tag_test(fid, oinfo2.token, true) < 0)
        TEST_ERROR;
    /* Verify cork status of the datatype: DT3 */
    if (H5C__verify_cork_tag_test(fid, oinfo3.token, true) < 0)
        TEST_ERROR;

    /* Un-cork the datatype: DT3 */
    if (H5Oenable_mdc_flushes(tid3) < 0)
        TEST_ERROR;
    /* Verify cork status of the datatype: DT3 */
    if (H5C__verify_cork_tag_test(fid, oinfo3.token, false) < 0)
        TEST_ERROR;

    /* Cork the datatype: DT */
    if (H5Odisable_mdc_flushes(tid) < 0)
        TEST_ERROR;

    /* Verify cork status of the datatype: DT */
    if (H5C__verify_cork_tag_test(fid, oinfo.token, true) < 0)
        TEST_ERROR;
    /* Verify cork status of the datatype: DT2 */
    if (H5C__verify_cork_tag_test(fid, oinfo2.token, true) < 0)
        TEST_ERROR;

    /* Verify cork status of the dataset: DSET */
    if (H5C__verify_cork_tag_test(fid, oinfo4.token, true) < 0)
        TEST_ERROR;

    /* Close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Verify cork status of the datatype: DT */
    if (H5C__verify_cork_tag_test(fid, oinfo.token, true) < 0)
        TEST_ERROR;

    /* Verify cork status of the dataset: DSET */
    if (H5C__verify_cork_tag_test(fid, oinfo4.token, false) < 0)
        TEST_ERROR;

    /* Closing */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;
    if (H5Tclose(tid3) < 0)
        TEST_ERROR;
    if (H5Gclose(gid) < 0)
        TEST_ERROR;
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;
    if (H5Sclose(sid) < 0)
        TEST_ERROR;
    if (H5Fclose(fid) < 0)
        TEST_ERROR;
    if (H5Pclose(fapl) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Tclose(tid);
        H5Tclose(tid2);
        H5Tclose(tid3);
        H5Gclose(gid);
        H5Gclose(gid2);
        H5Dclose(did);
        H5Pclose(fapl);
        H5Fclose(fid);
    }
    H5E_END_TRY
    return 1;
} /* verify_named_cork */

/*-------------------------------------------------------------------------
 * Function:    verify_multiple_cork
 *
 * Purpose:     This function verifies corking operations when there are
 *      multiple opens of files, objects, attributes.
 *      (based on test_attr_bug5() in tattr.c)
 *      Cache entries associated with the object tag are checked
 *              for the correct cork status.
 *
 * Return:      0 on Success, 1 on Failure
 *
 *-------------------------------------------------------------------------
 */
static unsigned
verify_multiple_cork(bool swmr)
{
    /* Variable Declarations */
    hid_t       fid1 = H5I_INVALID_HID, fid2 = H5I_INVALID_HID;   /* File ID */
    hid_t       fapl = H5I_INVALID_HID;                           /* File access property list */
    hid_t       tid1 = H5I_INVALID_HID, tid2 = H5I_INVALID_HID;   /* Datatype IDs */
    hid_t       gid1 = H5I_INVALID_HID, gid2 = H5I_INVALID_HID;   /* Group IDs */
    hid_t       did1 = H5I_INVALID_HID, did2 = H5I_INVALID_HID;   /* Dataset ID */
    hid_t       aidg1 = H5I_INVALID_HID, aidg2 = H5I_INVALID_HID; /* Attribute ID */
    hid_t       aidd1 = H5I_INVALID_HID, aidd2 = H5I_INVALID_HID; /* Attribute ID */
    hid_t       aidt1 = H5I_INVALID_HID, aidt2 = H5I_INVALID_HID; /* Attribute ID */
    hid_t       sid = H5I_INVALID_HID;                            /* Dataspace ID */
    H5O_info2_t oinfo1, oinfo2, oinfo3;                           /* Object metadata information */
    hsize_t     dim[1] = {5};                                     /* Dimension sizes */
    unsigned    flags;                                            /* File access flags */
    bool        corked;                                           /* Cork status */
    herr_t      ret;                                              /* Return value */

    /* Testing Macro */
    if (swmr) {
        TESTING("cork status for multiple opens (SWMR)");
    }
    else {
        TESTING("cork status for multiple opens");
    }

    /* Create fapl */
    if ((fapl = H5Pcreate(H5P_FILE_ACCESS)) < 0)
        TEST_ERROR;
    /* Set to use latest format */
    if (H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
        TEST_ERROR;

    /* Create the file */
    flags = H5F_ACC_TRUNC;
    if (swmr)
        flags |= H5F_ACC_SWMR_WRITE;
    if ((fid1 = H5Fcreate(FILENAME, flags, H5P_DEFAULT, fapl)) < 0)
        TEST_ERROR;

    /* Open root group */
    if ((gid1 = H5Gopen2(fid1, "/", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Create and commit datatype */
    if ((tid1 = H5Tcopy(H5T_STD_I32LE)) < 0)
        TEST_ERROR;
    if (H5Tcommit2(fid1, DT, tid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* Create dataset */
    if ((sid = H5Screate_simple(1, dim, NULL)) < 0)
        TEST_ERROR;
    if ((did1 = H5Dcreate2(fid1, DSET, tid1, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Create attribute on root group */
    if ((aidg1 = H5Acreate2(gid1, GRP_ATTR, tid1, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Create attribute on dataset */
    if ((aidd1 = H5Acreate2(did1, DSET_ATTR, tid1, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Create attribute on datatype */
    if ((aidt1 = H5Acreate2(tid1, DT_ATTR, tid1, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Closing */
    if (H5Aclose(aidt1) < 0)
        TEST_ERROR;
    if (H5Aclose(aidd1) < 0)
        TEST_ERROR;
    if (H5Aclose(aidg1) < 0)
        TEST_ERROR;
    if (H5Dclose(did1) < 0)
        TEST_ERROR;
    if (H5Tclose(tid1) < 0)
        TEST_ERROR;
    if (H5Gclose(gid1) < 0)
        TEST_ERROR;
    if (H5Fclose(fid1) < 0)
        TEST_ERROR;
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* Open the file twice: fid1, fid2 */
    flags = H5F_ACC_RDWR;
    if (swmr)
        flags |= H5F_ACC_SWMR_WRITE;
    if ((fid1 = H5Fopen(FILENAME, flags, fapl)) < 0)
        TEST_ERROR;
    if ((fid2 = H5Fopen(FILENAME, flags, fapl)) < 0)
        TEST_ERROR;

    /* Open the root group twice: gid1, gid2 */
    if ((gid1 = H5Gopen2(fid1, "/", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((gid2 = H5Gopen2(fid2, "/", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Open the root group attribute twice: aidg1, aidg2 */
    if ((aidg1 = H5Aopen(gid1, GRP_ATTR, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((aidg2 = H5Aopen(gid2, GRP_ATTR, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Cork the group: gid2 */
    if (H5Odisable_mdc_flushes(gid2) < 0)
        TEST_ERROR;

    /* Verify cork status of the group: gid2 */
    if (H5Oget_info3(gid2, &oinfo1, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5C__verify_cork_tag_test(fid2, oinfo1.token, true) < 0)
        TEST_ERROR;

    /* Check cork status of the group: gid1 */
    if (H5Oare_mdc_flushes_disabled(gid1, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Open the dataset twice: did1, did2 */
    if ((did1 = H5Dopen2(fid1, DSET, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((did2 = H5Dopen2(fid2, DSET, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Open the dataset attribute twice: aidd1, aidd2 */
    if ((aidd1 = H5Aopen(did1, DSET_ATTR, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((aidd2 = H5Aopen(did2, DSET_ATTR, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Cork the dataset: did1 */
    if (H5Odisable_mdc_flushes(did1) < 0)
        TEST_ERROR;

    /* Verify cork status of the dataset: did1 */
    if (H5Oget_info3(did1, &oinfo2, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5C__verify_cork_tag_test(fid1, oinfo2.token, true) < 0)
        TEST_ERROR;

    /* Check cork status of the dataset: did2 */
    if (H5Oare_mdc_flushes_disabled(did2, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Open the datatype twice: tid1, tid2 */
    if ((tid1 = H5Topen2(fid1, DT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid2 = H5Topen2(fid2, DT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Open the datatype attribute twice: aidt1, aidt2 */
    if ((aidt1 = H5Aopen(tid1, DT_ATTR, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((aidt2 = H5Aopen(tid2, DT_ATTR, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Cork the datatype: tid2 */
    if (H5Odisable_mdc_flushes(tid2) < 0)
        TEST_ERROR;

    /* Verify cork status of the datatype: tid2 */
    if (H5Oget_info3(tid2, &oinfo3, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5C__verify_cork_tag_test(fid2, oinfo3.token, true) < 0)
        TEST_ERROR;

    /* Check cork status of the datatype: tid1 */
    if (H5Oare_mdc_flushes_disabled(tid1, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Uncork the group: gid1 */
    if (H5Oenable_mdc_flushes(gid1) < 0)
        TEST_ERROR;

    /* Verify cork status of the group: gid1 */
    if (H5Oget_info3(gid1, &oinfo1, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5C__verify_cork_tag_test(fid1, oinfo1.token, false) < 0)
        TEST_ERROR;

    /* Check cork status of the group: gid2 */
    if (H5Oare_mdc_flushes_disabled(gid2, &corked) < 0)
        TEST_ERROR;
    if (corked)
        TEST_ERROR;

    /* Close the group: gid2 */
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;

    /* Check cork status of the group: gid1 */
    if (H5Oare_mdc_flushes_disabled(gid1, &corked) < 0)
        TEST_ERROR;
    if (corked)
        TEST_ERROR;

    /* Verify cork status of the group: gid1 */
    if (H5C__verify_cork_tag_test(fid1, oinfo1.token, false) < 0)
        TEST_ERROR;

    /* Close the group: gid1 */
    if (H5Gclose(gid1) < 0)
        TEST_ERROR;

    /* Uncork the dataset: gid2 */
    if (H5Oenable_mdc_flushes(did2) < 0)
        TEST_ERROR;

    /* Verify cork status of the dataset: did2 */
    if (H5Oget_info3(did2, &oinfo2, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5C__verify_cork_tag_test(fid2, oinfo2.token, false) < 0)
        TEST_ERROR;

    /* Check cork status of the dataset: did1 */
    if (H5Oare_mdc_flushes_disabled(did1, &corked) < 0)
        TEST_ERROR;
    if (corked)
        TEST_ERROR;

    /* Close the dataset: did2 */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* Check cork status of the dataset: did1 */
    if (H5Oare_mdc_flushes_disabled(did1, &corked) < 0)
        TEST_ERROR;
    if (corked)
        TEST_ERROR;

    /* Verify cork status of the dataset: did1 */
    if (H5C__verify_cork_tag_test(fid1, oinfo2.token, false) < 0)
        TEST_ERROR;

    /* Close the dataset: did1 */
    if (H5Dclose(did1) < 0)
        TEST_ERROR;

    /* Check cork status of the datatype: tid1 */
    if (H5Oare_mdc_flushes_disabled(tid1, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Close datatype: tid1 */
    if (H5Tclose(tid1) < 0)
        TEST_ERROR;

    /* Check cork status of the datatype: tid2 */
    if (H5Oare_mdc_flushes_disabled(tid2, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Close datatype: tid2 */
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;

    /* Should fail to cork the attribute: aidg2; not an object */
    H5E_BEGIN_TRY
    {
        ret = H5Odisable_mdc_flushes(aidg2);
    }
    H5E_END_TRY
    if (ret >= 0)
        TEST_ERROR;

    /* Should fail to uncork the attribute: aidd1; not an object */
    H5E_BEGIN_TRY
    {
        ret = H5Odisable_mdc_flushes(aidd1);
    }
    H5E_END_TRY
    if (ret >= 0)
        TEST_ERROR;

    /* Should fail to check cork status of the attribute: aidt2; not an object */
    H5E_BEGIN_TRY
    {
        ret = H5Oare_mdc_flushes_disabled(aidt2, &corked);
    }
    H5E_END_TRY
    if (ret >= 0)
        TEST_ERROR;

    /* Close all attributes */
    if (H5Aclose(aidg1) < 0)
        TEST_ERROR;
    if (H5Aclose(aidg2) < 0)
        TEST_ERROR;
    if (H5Aclose(aidd1) < 0)
        TEST_ERROR;
    if (H5Aclose(aidd2) < 0)
        TEST_ERROR;
    if (H5Aclose(aidt1) < 0)
        TEST_ERROR;
    if (H5Aclose(aidt2) < 0)
        TEST_ERROR;

    /* Should fail to cork the file: fid1; not an object */
    H5E_BEGIN_TRY
    {
        ret = H5Oare_mdc_flushes_disabled(fid1, &corked);
        ret = H5Odisable_mdc_flushes(fid1);
    }
    H5E_END_TRY
    if (ret >= 0)
        TEST_ERROR;

    /* Should fail to uncork the file: fid2; not an object */
    H5E_BEGIN_TRY
    {
        ret = H5Oenable_mdc_flushes(fid2);
    }
    H5E_END_TRY
    if (ret >= 0)
        TEST_ERROR;

    /* Closing */
    if (H5Pclose(fapl) < 0)
        TEST_ERROR;
    if (H5Fclose(fid1) < 0)
        TEST_ERROR;
    if (H5Fclose(fid2) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Tclose(tid1);
        H5Tclose(tid2);
        H5Gclose(gid1);
        H5Gclose(gid2);
        H5Dclose(did1);
        H5Dclose(did2);
        H5Aclose(aidg1);
        H5Aclose(aidg2);
        H5Aclose(aidd1);
        H5Aclose(aidt1);
        H5Aclose(aidt2);
        H5Aclose(aidd2);
        H5Pclose(fapl);
        H5Fclose(fid1);
        H5Fclose(fid1);
    }
    H5E_END_TRY
    return 1;
} /* verify_multiple_cork */

/*-------------------------------------------------------------------------
 * Function:    test_objs_cork
 *
 * Purpose:     This function verifies
 *H5Odisable_mdc_flushes/H5Oenable_mdc_flushes/H5Oare_mdc_flushes_disabled public routines are working as
 *specified.
 *
 * Return:      0 on Success, 1 on Failure
 *
 *-------------------------------------------------------------------------
 */
static unsigned
test_objs_cork(bool swmr, bool new_format)
{
    hid_t    fid  = H5I_INVALID_HID; /* HDF5 File ID */
    hid_t    fapl = H5I_INVALID_HID; /* File access property list */
    hid_t    gid  = H5I_INVALID_HID;
    hid_t    did  = H5I_INVALID_HID;
    hid_t    tid  = H5I_INVALID_HID; /* Object IDs */
    hid_t    sid  = H5I_INVALID_HID; /* Dataspace ID */
    hid_t    aid  = H5I_INVALID_HID; /* Attribute ID */
    hsize_t  dims[RANK];             /* Dataset dimension sizes */
    bool     corked;                 /* Cork status of an object */
    unsigned flags;                  /* File access flags */
    herr_t   ret;                    /* Return value */

    /* Testing Macro */
    if (new_format) {
        if (swmr) {
            TESTING("H5Odisable_mdc_flushes/H5Oenable_mdc_flushes/H5Oare_mdc_flushes_disabled (new library "
                    "format) (SWMR)");
        } /* end if */
        else {
            TESTING("H5Odisable_mdc_flushes/H5Oenable_mdc_flushes/H5Oare_mdc_flushes_disabled (new library "
                    "format)");
        } /* end else */
    }
    else {
        if (swmr) {
            TESTING("H5Odisable_mdc_flushes/H5Oenable_mdc_flushes/H5Oare_mdc_flushes_disabled (old library "
                    "format) (SWMR)");
        } /* end if */
        else {
            TESTING("H5Odisable_mdc_flushes/H5Oenable_mdc_flushes/H5Oare_mdc_flushes_disabled (old library "
                    "format)");
        } /* end else */
    }     /* end else */

    /* Create fapl */
    if ((fapl = H5Pcreate(H5P_FILE_ACCESS)) < 0)
        TEST_ERROR;

    /* Set to use latest format */
    if (new_format) {
        if (H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
            TEST_ERROR;
    } /* end if */

    /* Create the file with/without SWMR access */
    flags = H5F_ACC_TRUNC;
    if (swmr)
        flags |= H5F_ACC_SWMR_WRITE;
    if ((fid = H5Fcreate(FILENAME, flags, H5P_DEFAULT, fapl)) < 0)
        TEST_ERROR;

    /* Create group */
    if ((gid = H5Gcreate2(fid, "group", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check cork status of the group: not corked */
    if (H5Oare_mdc_flushes_disabled(gid, &corked) < 0)
        TEST_ERROR;
    if (corked)
        TEST_ERROR;

    /* Cork the group: an object */
    if (H5Odisable_mdc_flushes(gid) < 0)
        TEST_ERROR;

    /* Check cork status of the group: corked */
    if (H5Oare_mdc_flushes_disabled(gid, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Close the group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* Create a transient copy of a native type */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* Should fail to cork the datatype: not an object */
    H5E_BEGIN_TRY
    {
        ret = H5Odisable_mdc_flushes(tid);
    }
    H5E_END_TRY
    if (ret >= 0)
        TEST_ERROR;

    /* Create a named datatype */
    if (H5Tcommit2(fid, "group/datatype", tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* Check cork status of the named datatype: not corked */
    if (H5Oare_mdc_flushes_disabled(tid, &corked) < 0)
        TEST_ERROR;
    if (corked)
        TEST_ERROR;

    /* Cork the named datatype: an object */
    if (H5Odisable_mdc_flushes(tid) < 0)
        TEST_ERROR;

    /* Check cork status of the named datatype: corked */
    if (H5Oare_mdc_flushes_disabled(tid, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Close the named datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* Create dataspace */
    dims[0] = DIM0;
    dims[1] = DIM1;
    if ((sid = H5Screate_simple(RANK, dims, NULL)) < 0)
        TEST_ERROR;

    /* Should fail to uncork the dataspace: not an object */
    H5E_BEGIN_TRY
    {
        ret = H5Oenable_mdc_flushes(sid);
    }
    H5E_END_TRY
    if (ret >= 0)
        TEST_ERROR;

    /* Create dataset. */
    if ((did = H5Dcreate2(fid, "dataset", H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Create attribute on the dataset */
    if ((aid = H5Acreate2(did, "attr", H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Should fail to check cork status of the attribute: not an object */
    H5E_BEGIN_TRY
    {
        ret = H5Oare_mdc_flushes_disabled(aid, &corked);
    }
    H5E_END_TRY
    if (ret >= 0)
        TEST_ERROR;

    /* Check cork status of the dataset: not corked */
    if (H5Oare_mdc_flushes_disabled(did, &corked) < 0)
        TEST_ERROR;
    if (corked)
        TEST_ERROR;

    /* Cork the dataset: an object */
    if (H5Odisable_mdc_flushes(did) < 0)
        TEST_ERROR;

    /* Check cork status of the dataset: corked */
    if (H5Oare_mdc_flushes_disabled(did, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Close the dataset and dataspace */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Open the group */
    if ((gid = H5Oopen(fid, "group", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check cork status of the group */
    if (H5Oare_mdc_flushes_disabled(gid, &corked) < 0)
        TEST_ERROR;
    if (corked)
        TEST_ERROR;

    /* Cork the group */
    if (H5Odisable_mdc_flushes(gid) < 0)
        TEST_ERROR;

    /* Should fail to cork the group again */
    H5E_BEGIN_TRY
    {
        ret = H5Odisable_mdc_flushes(gid);
    }
    H5E_END_TRY
    if (ret >= 0)
        TEST_ERROR;

    /* Check cork status of the group */
    if (H5Oare_mdc_flushes_disabled(gid, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Open the named datatype */
    if ((tid = H5Oopen(fid, "group/datatype", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check cork status of the named datatype */
    if (H5Oare_mdc_flushes_disabled(tid, &corked) < 0)
        TEST_ERROR;
    if (corked)
        TEST_ERROR;

    /* Should fail to un-cork the named datatype that is not corked yet */
    H5E_BEGIN_TRY
    {
        ret = H5Oenable_mdc_flushes(tid);
    }
    H5E_END_TRY
    if (ret >= 0)
        TEST_ERROR;

    /* Cork the named datatype */
    if (H5Odisable_mdc_flushes(tid) < 0)
        TEST_ERROR;

    /* Check cork status of the named datatype */
    if (H5Oare_mdc_flushes_disabled(tid, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Open the dataset */
    if ((did = H5Oopen(fid, "/dataset", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check cork status of the dataset */
    if (H5Oare_mdc_flushes_disabled(did, &corked) < 0)
        TEST_ERROR;
    if (corked)
        TEST_ERROR;

    /* Cork the dataset */
    if (H5Odisable_mdc_flushes(did) < 0)
        TEST_ERROR;

    /* Check cork status of dataset */
    if (H5Oare_mdc_flushes_disabled(did, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Un-cork the dataset */
    if (H5Oenable_mdc_flushes(did) < 0)
        TEST_ERROR;

    /* Check cork status of the dataset */
    if (H5Oare_mdc_flushes_disabled(did, &corked) < 0)
        TEST_ERROR;
    if (corked)
        TEST_ERROR;

    /* Closing */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Gclose(gid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;
    if (H5Sclose(sid) < 0)
        TEST_ERROR;
    if (H5Aclose(aid) < 0)
        TEST_ERROR;
    if (H5Pclose(fapl) < 0)
        TEST_ERROR;
    if (H5Fclose(fid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Sclose(sid);
        H5Aclose(aid);
        H5Dclose(did);
        H5Gclose(gid);
        H5Tclose(tid);
        H5Pclose(fapl);
        H5Fclose(fid);
    }
    H5E_END_TRY
    return 1;
} /* test_objs_cork() */

/*-------------------------------------------------------------------------
 * Function:    test_dset_cork
 *
 * Purpose:     This function verifies
 *H5Odisable_mdc_flushes/H5Oenable_mdc_flushes/H5Oare_mdc_flushes_disabled are working as specified when
 *manipulating datasets.
 *
 * Return:      0 on Success, 1 on Failure
 *
 *-------------------------------------------------------------------------
 */
static unsigned
test_dset_cork(bool swmr, bool new_format)
{
    hid_t    fid = H5I_INVALID_HID;                          /* File ID */
    hid_t    fapl;                                           /* File access property list */
    hid_t    gid  = H5I_INVALID_HID;                         /* Group ID */
    hid_t    did1 = H5I_INVALID_HID, did2 = H5I_INVALID_HID; /* Dataset IDs */
    hid_t    tid1 = H5I_INVALID_HID, tid2 = H5I_INVALID_HID; /* Datatype IDs */
    hid_t    sid  = H5I_INVALID_HID;                         /* Dataspace ID */
    hid_t    dcpl = H5I_INVALID_HID;                         /* Dataset creation property list */
    hsize_t  dims[RANK];                                     /* Dataset dimensions */
    hsize_t  maxdims[2]  = {H5S_UNLIMITED, H5S_UNLIMITED};   /* Maximum dataset dimensions */
    hsize_t  cdims[RANK] = {2, 2};                           /* Chunk dimensions */
    int      fillval     = 0;                                /* Fill value */
    int      i, j, k = 0;                                    /* Local index variables */
    int    **wbuf      = NULL; /* Data buffer for writes (pointers to fake 2D array) */
    int     *wbuf_data = NULL; /* Data buffer for writes (real data) */
    int     *rbuf_data = NULL; /* Data buffer for reads (real data) */
    bool     corked;           /* Cork status of an object */
    unsigned flags;            /* File access flags */

    /* Testing Macro */
    if (new_format) {
        if (swmr) {
            TESTING("H5Odisable_mdc_flushes/H5Oenable_mdc_flushes/H5Oare_mdc_flushes_disabled on datasets "
                    "(new library format) (SWMR)");
        } /* end if */
        else {
            TESTING("H5Odisable_mdc_flushes/H5Oenable_mdc_flushes/H5Oare_mdc_flushes_disabled on datasets "
                    "(new library format)");
        } /* end else */
    }
    else {
        if (swmr) {
            TESTING("H5Odisable_mdc_flushes/H5Oenable_mdc_flushes/H5Oare_mdc_flushes_disabled on datasets "
                    "(old library format) (SWMR)");
        } /* end if */
        else {
            TESTING("H5Odisable_mdc_flushes/H5Oenable_mdc_flushes/H5Oare_mdc_flushes_disabled on datasets "
                    "(old library format)");
        } /* end else */
    }     /* end if */

    /* Create fapl */
    if ((fapl = H5Pcreate(H5P_FILE_ACCESS)) < 0)
        TEST_ERROR;

    /* Set to use latest format */
    if (new_format) {
        if (H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
            TEST_ERROR;
    } /* end if */

    /* Create the file with/without SWMR access */
    flags = H5F_ACC_TRUNC;
    if (swmr)
        flags |= H5F_ACC_SWMR_WRITE;
    if ((fid = H5Fcreate(FILENAME, flags, H5P_DEFAULT, fapl)) < 0)
        TEST_ERROR;

    /* Create a group */
    if ((gid = H5Gcreate2(fid, "group", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Commit the datatype with the group */
    if ((tid1 = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if (H5Tcommit2(gid, "datatype", tid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* Cork the named datatype */
    if (H5Odisable_mdc_flushes(tid1) < 0)
        TEST_ERROR;

    /* Set up dataset creation property list */
    if ((dcpl = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;

    /* Enable chunking */
    if (H5Pset_chunk(dcpl, RANK, cdims) < 0)
        TEST_ERROR;

    /* Set up a fill value */
    if (H5Pset_fill_value(dcpl, H5T_NATIVE_INT, &fillval) < 0)
        TEST_ERROR;

    /* Create dataspace */
    dims[0] = DIMS0;
    dims[1] = DIMS1;
    if ((sid = H5Screate_simple(RANK, dims, maxdims)) < 0)
        TEST_ERROR;

    /* Create the dataset inside the group with the named datatype */
    if ((did1 = H5Dcreate2(gid, "dataset", tid1, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check cork status of the named datatype */
    if (H5Oare_mdc_flushes_disabled(tid1, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Cork the dataset */
    if (H5Odisable_mdc_flushes(did1) < 0)
        TEST_ERROR;

    /* Check cork status of the dataset */
    if (H5Oare_mdc_flushes_disabled(did1, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Check cork status of the group */
    if (H5Oare_mdc_flushes_disabled(gid, &corked) < 0)
        TEST_ERROR;
    if (corked)
        TEST_ERROR;

    /* Set up data array */
    if (NULL == (wbuf_data = (int *)calloc(DIMS0 * DIMS1, sizeof(int))))
        TEST_ERROR;
    if (NULL == (wbuf = (int **)calloc(DIMS0, sizeof(wbuf_data))))
        TEST_ERROR;
    for (i = 0; i < DIMS0; i++)
        wbuf[i] = wbuf_data + (i * DIMS1);

    /* Initialize the buffer */
    for (i = 0; i < DIMS0; i++)
        for (j = 0; j < DIMS1; j++)
            wbuf[i][j] = k++;

    /* Write to the dataset */
    if (H5Dwrite(did1, tid1, sid, sid, H5P_DEFAULT, wbuf_data) < 0)
        TEST_ERROR;

    /* Flush the dataset */
    if (H5Oflush(did1) < 0)
        TEST_ERROR;

    /* Check cork status of the dataset */
    if (H5Oare_mdc_flushes_disabled(did1, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Check cork status of the named datatype */
    if (H5Oare_mdc_flushes_disabled(tid1, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Close the dataset */
    if (H5Dclose(did1) < 0)
        TEST_ERROR;

    /* Open the dataset again */
    if ((did1 = H5Dopen2(gid, "dataset", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check cork status of dataset */
    if (H5Oare_mdc_flushes_disabled(did1, &corked) < 0)
        TEST_ERROR;
    if (corked)
        TEST_ERROR;

    /* Set up data array */
    if (NULL == (rbuf_data = (int *)calloc(DIMS0 * DIMS1, sizeof(int))))
        TEST_ERROR;

    /* Read from the dataset */
    if (H5Dread(did1, tid1, H5S_ALL, H5S_ALL, H5P_DEFAULT, rbuf_data) < 0)
        TEST_ERROR;

    /* Cork the dataset */
    if (H5Odisable_mdc_flushes(did1) < 0)
        TEST_ERROR;

    /* Delete the dataset */
    if (H5Ldelete(gid, "dataset", H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* Check cork status of the dataset */
    if (H5Oare_mdc_flushes_disabled(did1, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Close the dataset */
    if (H5Oclose(did1) < 0)
        TEST_ERROR;

    /* Create the dataset again */
    if ((did1 = H5Dcreate2(gid, "dataset", tid1, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Cork the dataset */
    if (H5Odisable_mdc_flushes(did1) < 0)
        TEST_ERROR;

    /* Write to the dataset */
    if (H5Dwrite(did1, tid1, sid, sid, H5P_DEFAULT, wbuf_data) < 0)
        TEST_ERROR;

    /* Refresh the dataset */
    if (H5Drefresh(did1) < 0)
        TEST_ERROR;

    /* Check cork status of the dataset */
    if (H5Oare_mdc_flushes_disabled(did1, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Close the dataset */
    if (H5Dclose(did1) < 0)
        TEST_ERROR;

    /* First open of the dataset */
    if ((did1 = H5Dopen2(gid, "dataset", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Second open of the dataset */
    if ((did2 = H5Dopen2(gid, "dataset", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Cork the first opened dataset */
    if (H5Odisable_mdc_flushes(did1) < 0)
        TEST_ERROR;

    /* Check cork status of the first opened dataset */
    if (H5Oare_mdc_flushes_disabled(did1, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Check cork status of the second opened dataset */
    if (H5Oare_mdc_flushes_disabled(did2, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Close the second opened dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* Check cork status of the first opened dataset */
    if (H5Oare_mdc_flushes_disabled(did1, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Close the first opened dastaset */
    if (H5Dclose(did1) < 0)
        TEST_ERROR;

    /* Check cork status of the named datatype */
    if (H5Oare_mdc_flushes_disabled(tid1, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Second open of the named datatype */
    if ((tid2 = H5Topen2(gid, "datatype", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check cork status of the second opened named datatype */
    if (H5Oare_mdc_flushes_disabled(tid2, &corked) < 0)
        TEST_ERROR;
    if (!corked)
        TEST_ERROR;

    /* Uncork the second opened named datatype */
    if (H5Oenable_mdc_flushes(tid2) < 0)
        TEST_ERROR;

    /* Check cork status of the second opened named datatype */
    if (H5Oare_mdc_flushes_disabled(tid2, &corked) < 0)
        TEST_ERROR;
    if (corked)
        TEST_ERROR;

    /* Check cork status of the first opened named datatype */
    if (H5Oare_mdc_flushes_disabled(tid1, &corked) < 0)
        TEST_ERROR;
    if (corked)
        TEST_ERROR;

    /* Close the first opened datatype */
    if (H5Tclose(tid1) < 0)
        TEST_ERROR;

    /* Close the second opened datatype */
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;

    /* Check cork status of the group */
    if (H5Oare_mdc_flushes_disabled(gid, &corked) < 0)
        TEST_ERROR;
    if (corked)
        TEST_ERROR;

    /* Closing */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;
    if (H5Sclose(sid) < 0)
        TEST_ERROR;
    if (H5Pclose(fapl) < 0)
        TEST_ERROR;
    if (H5Fclose(fid) < 0)
        TEST_ERROR;
    if (H5Pclose(dcpl) < 0)
        TEST_ERROR;

    free(wbuf);
    free(wbuf_data);
    free(rbuf_data);

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Sclose(sid);
        H5Dclose(did1);
        H5Dclose(did2);
        H5Tclose(tid1);
        H5Tclose(tid2);
        H5Pclose(dcpl);
        H5Gclose(gid);
        H5Pclose(fapl);
        H5Fclose(fid);
    }
    H5E_END_TRY

    free(wbuf);
    free(wbuf_data);
    free(rbuf_data);

    return 1;

} /* test_dset_cork() */

/*-------------------------------------------------------------------------
 * Function:    main
 *
 * Purpose:     Run tests to verify the library's corking operations.
 *
 * Return:      Success:
 *
 *              Failure:
 *
 *-------------------------------------------------------------------------
 */
int
main(void)
{
    unsigned swmr;      /* Loop over SWMR/non-SWMR */
    unsigned nerrs = 0; /* Error Encountered */

    /* Test for dataset created with old library format */
    nerrs += verify_old_dset_cork();

    for (swmr = 0; swmr <= 1; swmr++) {
        if (swmr) {
            const char *driver_name = h5_get_test_driver_name();

            /* Skip these tests if SWMR I/O is not supported for the VFD specified
             * by the environment variable.
             */
            if (!H5FD__supports_swmr_test(driver_name)) {
                puts("-- SKIPPED SWMR tests for SWMR-incompatible VFD --");
                continue;
            }
        }

        /* Tests with new/old library format */
        /* This is the test moved from th5o.c: test_h5o_cork() */
        nerrs += test_objs_cork(swmr, true);
        nerrs += test_objs_cork(swmr, false);
        /* This is the test moved from th5o.c: test_h5o_cork_dataset() */
        nerrs += test_dset_cork(swmr, true);
        nerrs += test_dset_cork(swmr, false);

        /* Tests with/without SWMR access */
        nerrs += verify_obj_dset_cork(swmr);
        nerrs += verify_dset_cork(swmr, true);
        nerrs += verify_dset_cork(swmr, false);
        nerrs += verify_group_cork(swmr);
        nerrs += verify_named_cork(swmr);
        nerrs += verify_multiple_cork(swmr);
    } /* end for */

    /* Delete test files */
    HDremove(FILENAME);

    /* Return Errors */
    return (nerrs > 0);
} /* main */
