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#include "h5dsm_example.h"
#include <time.h>
int main(int argc, char *argv[]) {
uuid_t pool_uuid;
char *pool_grp = NULL;
hid_t file = -1, obj = -1, attr = -1, fapl = -1;
H5VL_daosm_snap_id_t snap_id;
int buf[4][6];
int i, j;
(void)MPI_Init(&argc, &argv);
/* Seed random number generator */
srand(time(NULL));
if(argc < 6 || argc > 7)
PRINTF_ERROR("argc must be 6 or 7\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;
/* Open file */
if((file = H5Fopen(argv[2], H5F_ACC_RDWR, 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;
}
/* Open attribute */
if((attr = H5Aopen(obj, argv[5], 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(H5Awrite(attr, H5T_NATIVE_INT, buf) < 0)
ERROR;
/* Save snapshot if requested */
if(argc == 7) {
if(H5VLdaosm_snap_create(file, &snap_id) < 0)
ERROR;
printf("Saved snapshot: snap_id = %llu\n", (long long unsigned)snap_id);
} /* end if */
/* Close */
if(H5Aclose(attr) < 0)
ERROR;
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 {
H5Aclose(attr);
H5Oclose(obj);
H5Fclose(file);
H5Pclose(fapl);
} H5E_END_TRY;
(void)MPI_Finalize();
return 1;
}
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