examples/h5rados_file_create.c


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#include "h5rados_example.h"

int main(int argc, char *argv[]) {
    rados_t cluster;
    char *pool = "mypool";
    hid_t file = -1, fapl = -1;

    (void)MPI_Init(&argc, &argv);

    if(argc != 2)
        PRINTF_ERROR("argc != 2\n");

    if(rados_create(&cluster, NULL) < 0)
        ERROR;
    if(rados_conf_read_file(cluster, CEPH_CONFIG_FILE) < 0)
        ERROR;

    /* Initialize VOL */
    if(H5VLrados_init(cluster, pool) < 0)
        ERROR;

    /* Set up FAPL */
    if((fapl = H5Pcreate(H5P_FILE_ACCESS)) < 0)
        ERROR;
    if(H5Pset_fapl_rados(fapl, MPI_COMM_WORLD, MPI_INFO_NULL) < 0)
        ERROR;
    if(H5Pset_all_coll_metadata_ops(fapl, true) < 0)
        ERROR;

    /* Create file */
    if((file = H5Fcreate(argv[1], H5F_ACC_TRUNC, H5P_DEFAULT, fapl)) < 0)
        ERROR;

    /* Close */
    if(H5Fclose(file) < 0)
        ERROR;
    if(H5Pclose(fapl) < 0)
        ERROR;

    printf("Success\n");

    (void)MPI_Finalize();
    return 0;

error:
    H5E_BEGIN_TRY {
        H5Fclose(file);
        H5Pclose(fapl);
    } H5E_END_TRY;

    (void)MPI_Finalize();
    return 1;
}