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#include "h5dsm_example.h"
int main(int argc, char *argv[]) {
uuid_t pool_uuid;
char *pool_grp = NULL;
hid_t file = -1, fapl = -1;
H5VL_daosm_snap_id_t snap_id;
htri_t link_exists;
(void)MPI_Init(&argc, &argv);
if(argc < 4 || argc > 5)
PRINTF_ERROR("argc must be 4 or 5\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 == 5) {
snap_id = (H5VL_daosm_snap_id_t)atoi(argv[4]);
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;
printf("Checking if link exists... ");
/* Check link */
if((link_exists = H5Lexists(file, argv[3], H5P_DEFAULT)) < 0)
ERROR;
printf("%s\n", link_exists ? "TRUE" : "FALSE");
/* 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;
}
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