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#include "h5rados_example.h"
#include <time.h>
int main(int argc, char *argv[]) {
rados_t cluster;
char *pool = "mypool";
hid_t file = -1, dset = -1, fapl = -1;
int buf[4][6];
int i, j;
(void)MPI_Init(&argc, &argv);
/* Seed random number generator */
srand(time(NULL));
if(argc != 3)
PRINTF_ERROR("argc != 3\n");
if(rados_create(&cluster, NULL) < 0)
ERROR;
if(rados_conf_read_file(cluster, "ceph.conf") < 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;
/* Open file */
if((file = H5Fopen(argv[1], H5F_ACC_RDWR, fapl)) < 0)
ERROR;
/* Open dataset */
if((dset = H5Dopen2(file, argv[2], H5P_DEFAULT)) < 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");
}
/* Write data */
if(H5Dwrite(dset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
ERROR;
/* Close */
if(H5Dclose(dset) < 0)
ERROR;
if(H5Fclose(file) < 0)
ERROR;
if(H5Pclose(fapl) < 0)
ERROR;
printf("Success\n");
(void)MPI_Finalize();
return 0;
error:
H5E_BEGIN_TRY {
H5Dclose(dset);
H5Fclose(file);
H5Pclose(fapl);
} H5E_END_TRY;
(void)MPI_Finalize();
return 1;
}
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