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#include "h5dsm_example.h"
int od_test_g;
herr_t iter_cb(hid_t loc_id, const char *attr_name, const H5A_info_t *ainfo,
void *op_data) {
/* Print attribute name and size */
printf("%s: %d bytes\n", attr_name, (int)ainfo->data_size);
/* Check op_data */
if(op_data != &od_test_g)
PRINTF_ERROR("op_data incorrect");
return 0;
error:
return -1;
}
int main(int argc, char *argv[]) {
uuid_t pool_uuid;
char *pool_grp = NULL;
hid_t file = -1, obj = -1, fapl = -1;
hsize_t num_attr = 0;
herr_t ret;
H5VL_daosm_snap_id_t snap_id;
(void)MPI_Init(&argc, &argv);
if(argc < 5 || argc > 6)
PRINTF_ERROR("argc must be 5 or 6\n");
/* Parse UUID */
if(0 != uuid_parse(argv[1], pool_uuid))
ERROR;
/* Initialize VOL */
if(H5VLdaosm_init(MPI_COMM_WORLD, pool_uuid, pool_grp) < 0)
ERROR;
/* Set up FAPL */
if((fapl = H5Pcreate(H5P_FILE_ACCESS)) < 0)
ERROR;
if(H5Pset_fapl_daosm(fapl, MPI_COMM_WORLD, MPI_INFO_NULL) < 0)
ERROR;
if(H5Pset_all_coll_metadata_ops(fapl, true) < 0)
ERROR;
/* Open snapshot if specified */
if(argc == 6) {
snap_id = (H5VL_daosm_snap_id_t)atoi(argv[5]);
printf("Opening snapshot %llu\n", (long long unsigned)snap_id);
if(H5Pset_daosm_snap_open(fapl, snap_id) < 0)
ERROR;
} /* end if */
/* Open file */
if((file = H5Fopen(argv[2], H5F_ACC_RDONLY, fapl)) < 0)
ERROR;
/* Open object */
if(!strcmp(argv[3], "-d") || !strcmp(argv[3], "-D")) {
if((obj = H5Dopen2(file, argv[4], H5P_DEFAULT)) < 0)
ERROR;
}
else {
if(strcmp(argv[3], "-g") && strcmp(argv[3], "-G"))
PRINTF_ERROR("argv[3] must be -d, -D, -g, or -G\n");
if((obj = H5Gopen2(file, argv[4], H5P_DEFAULT)) < 0)
ERROR;
}
printf("Iterating over attributes\n");
/* Iterate */
if((ret = H5Aiterate(obj, H5_INDEX_NAME, H5_ITER_NATIVE, &num_attr, iter_cb, &od_test_g)) < 0)
ERROR;
printf("Complete. Number of attributes: %d\n", (int)num_attr);
/* Close */
if(H5Oclose(obj) < 0)
ERROR;
if(H5Fclose(file) < 0)
ERROR;
if(H5Pclose(fapl) < 0)
ERROR;
printf("Success\n");
(void)MPI_Finalize();
return 0;
error:
H5E_BEGIN_TRY {
H5Oclose(obj);
H5Fclose(file);
H5Pclose(fapl);
} H5E_END_TRY;
(void)MPI_Finalize();
return 1;
}
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