/*
* backup_nonpoolset_requirements -- (internal) check backup requirements
*/
static int
backup_nonpoolset_requirements(PMEMpoolcheck *ppc, location *loc)
{
LOG(3, "backup_path %s", ppc->backup_path);
if (os_access(ppc->backup_path, F_OK)) {
if (errno == ENOENT) {
errno = 0;
return 0;
} else {
return CHECK_ERR(ppc,
"unable to access the backup destination: %s",
ppc->backup_path);
}
}
if ((size_t)util_file_get_size(ppc->backup_path) !=
ppc->pool->set_file->size) {
ppc->result = CHECK_RESULT_ERROR;
return CHECK_ERR(ppc,
"destination of the backup does not match the size of the source pool file: %s",
ppc->backup_path);
}
if (CHECK_WITHOUT_FIXING(ppc)) {
location_release(loc);
loc->step = CHECK_STEP_COMPLETE;
return 0;
}
CHECK_ASK(ppc, Q_OVERWRITE_EXISTING_FILE,
"destination of the backup already exists.|Do you want to overwrite it?");
return check_questions_sequence_validate(ppc);
}
/*
* pool_data_alloc -- allocate pool data and open set_file
*/
struct pool_data *
pool_data_alloc(PMEMpoolcheck *ppc)
{
LOG(3, NULL);
struct pool_data *pool = malloc(sizeof(*pool));
if (!pool) {
ERR("!malloc");
return NULL;
}
TAILQ_INIT(&pool->arenas);
pool->narenas = 0;
pool->blk_no_layout = 0;
pool->uuid_op = UUID_NOP;
pool->set_file = NULL;
pool->bttc.valid = false;
if (pool_params_parse(ppc, &pool->params, 0))
goto error;
int rdonly = CHECK_WITHOUT_FIXING(ppc);
pool->set_file = pool_set_file_open(ppc->path, &pool->params, rdonly);
if (!pool->set_file)
goto error;
return pool;
error:
pool_data_free(pool);
return NULL;
}
/*
* backup_poolset_requirements -- (internal) check backup requirements
*/
static int
backup_poolset_requirements(PMEMpoolcheck *ppc, location *loc)
{
LOG(3, "backup_path %s", ppc->backup_path);
if (ppc->pool->set_file->poolset->nreplicas > 1) {
CHECK_INFO(ppc,
"backup of a poolset with multiple replicas is not supported");
goto err;
}
if (pool_set_parse(&loc->set, ppc->backup_path)) {
CHECK_INFO(ppc, "invalid poolset backup file: %s",
ppc->backup_path);
goto err;
}
if (loc->set->nreplicas > 1) {
CHECK_INFO(ppc,
"backup to a poolset with multiple replicas is not supported");
goto err_poolset;
}
ASSERTeq(loc->set->nreplicas, 1);
struct pool_replica *srep = ppc->pool->set_file->poolset->replica[0];
struct pool_replica *drep = loc->set->replica[0];
if (srep->nparts != drep->nparts) {
CHECK_INFO(ppc,
"number of part files in the backup poolset must match number of part files in the source poolset");
goto err_poolset;
}
int overwrite_required = 0;
for (unsigned p = 0; p < srep->nparts; p++) {
if (srep->part[p].filesize != drep->part[p].filesize) {
CHECK_INFO(ppc,
"size of the part %u of the backup poolset does not match source poolset",
p);
goto err_poolset;
}
if (os_access(drep->part[p].path, F_OK)) {
if (errno == ENOENT) {
errno = 0;
continue;
} else {
CHECK_INFO(ppc,
"unable to access the part of the destination poolset: %s",
ppc->backup_path);
goto err_poolset;
}
}
overwrite_required = true;
if ((size_t)util_file_get_size(drep->part[p].path) !=
srep->part[p].filesize) {
CHECK_INFO(ppc,
"destination of the backup part does not match size of the source part file: %s",
drep->part[p].path);
goto err_poolset;
}
}
if (CHECK_WITHOUT_FIXING(ppc)) {
location_release(loc);
loc->step = CHECK_STEP_COMPLETE;
return 0;
}
if (overwrite_required) {
CHECK_ASK(ppc, Q_OVERWRITE_EXISTING_PARTS,
"part files of the destination poolset of the backup already exist.|"
"Do you want to overwrite them?");
}
return check_questions_sequence_validate(ppc);
err_poolset:
location_release(loc);
err:
ppc->result = CHECK_RESULT_ERROR;
return CHECK_ERR(ppc, "unable to backup poolset");
}
