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#include "h5dsm_example.h"
#include <time.h>
int main(int argc, char *argv[]) {
uuid_t pool_uuid;
char *pool_grp = "daos_tier0";
hid_t file = -1, dset = -1, trans = -1, fapl = -1;
uint64_t trans_num;
int buf[4][6];
int i, j;
(void)MPI_Init(&argc, &argv);
(void)daos_init();
/* Seed random number generator */
srand(time(NULL));
if(argc != 4)
PRINTF_ERROR("argc != 4\n");
/* Parse UUID */
if(0 != uuid_parse(argv[1], pool_uuid))
ERROR;
/* Set up FAPL */
if((fapl = H5Pcreate(H5P_FILE_ACCESS)) < 0)
ERROR;
if(H5Pset_fapl_daosm(fapl, MPI_COMM_WORLD, MPI_INFO_NULL, pool_uuid, pool_grp) < 0)
ERROR;
/* Open file */
if((file = H5Fopen_ff(argv[2], H5F_ACC_RDWR, fapl, &trans)) < 0)
ERROR;
/* Open dataset */
if((dset = H5Dopen_ff(file, argv[3], H5P_DEFAULT, trans)) < 0)
ERROR;
/* Get next transaction */
if(H5TRget_trans_num(trans, &trans_num) < 0)
ERROR;
if(H5TRclose(trans) < 0)
ERROR;
if((trans = H5TRcreate(file, trans_num + 1)) < 0)
ERROR;
/* Fill and print buffer */
printf("Writing data. Buffer is:\n");
for(i = 0; i < 4; i++) {
for(j = 0; j < 6; j++) {
buf[i][j] = rand() % 10;
printf("%d ", buf[i][j]);
}
printf("\n");
}
printf("Transaction number = %llu\n", (long long unsigned)(trans_num + 1));
/* Write data */
if(H5Dwrite_ff(dset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf, trans) < 0)
ERROR;
/* Commit transaction */
if(H5TRcommit(trans) < 0)
ERROR;
/* Close */
if(H5Dclose_ff(dset, -1) < 0)
ERROR;
if(H5TRclose(trans) < 0)
ERROR;
if(H5Fclose_ff(file, -1) < 0)
ERROR;
if(H5Pclose(fapl) < 0)
ERROR;
printf("Success\n");
(void)daos_fini();
(void)MPI_Finalize();
return 0;
error:
H5E_BEGIN_TRY {
H5Dclose_ff(dset, -1);
H5TRclose(trans);
H5Fclose_ff(file, -1);
H5Pclose(fapl);
} H5E_END_TRY;
(void)daos_fini();
(void)MPI_Finalize();
return 1;
}
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