int fs_child_dependency(lsm_plugin_ptr c, lsm_fs *fs, lsm_string_list *files,
uint8_t *yes)
{
int rc = LSM_ERR_OK;
sqlite3 *db = NULL;
char err_msg[_LSM_ERR_MSG_LEN];
lsm_hash *sim_fs = NULL;
uint64_t sim_fs_id = 0;
char sql_cmd[_BUFF_SIZE];
struct _vector *vec = NULL;
_lsm_err_msg_clear(err_msg);
_good(_check_null_ptr(err_msg, 2 /* argument count */, fs, yes), rc, out);
_good(_get_db_from_plugin_ptr(err_msg, c, &db), rc, out);
_good(_db_sql_trans_begin(err_msg, db), rc, out);
sim_fs_id = _db_lsm_id_to_sim_id(lsm_fs_id_get(fs));
_good(_db_sim_fs_of_sim_id(err_msg, db, sim_fs_id, &sim_fs), rc, out);
/* Check fs snapshot status */
_snprintf_buff(err_msg, rc, out, sql_cmd,
"SELECT * FROM " _DB_TABLE_FS_SNAPS_VIEW " WHERE fs_id=%"
PRIu64 ";", sim_fs_id);
_good(_db_sql_exec(err_msg, db, sql_cmd, &vec), rc, out);
if (_vector_size(vec) != 0) {
*yes = 1;
goto out;
}
_db_sql_exec_vec_free(vec);
vec = NULL;
/* Check fs clone(clone here means read and writeable snapshot) */
_snprintf_buff(err_msg, rc, out, sql_cmd,
"SELECT * FROM " _DB_TABLE_FS_CLONES " WHERE src_fs_id = %"
PRIu64 ";", sim_fs_id);
_good(_db_sql_exec(err_msg, db, sql_cmd, &vec), rc, out);
if (_vector_size(vec) != 0)
*yes = 1;
out:
_db_sql_exec_vec_free(vec);
if (sim_fs != NULL)
lsm_hash_free(sim_fs);
_db_sql_trans_rollback(db);
if (rc != LSM_ERR_OK) {
if (yes != NULL)
*yes = 0;
lsm_log_error_basic(c, rc, err_msg);
}
return rc;
}
/**
* psl_suffix_exception_count:
* @psl: PSL context pointer
*
* This function returns number of public suffix exceptions maintained by @psl.
*
* If the generation of built-in data has been disabled during compilation, 0 will be returned.
*
* Returns: Number of public suffix exceptions in PSL context.
*
* Since: 0.1
*/
int psl_suffix_exception_count(const psl_ctx_t *psl)
{
if (psl == &_builtin_psl)
return countof(suffix_exceptions);
else if (psl)
return _vector_size(psl->suffix_exceptions);
else
return 0;
}
int fs_snapshot_list(lsm_plugin_ptr c, lsm_fs *fs, lsm_fs_ss **ss[],
uint32_t *ss_count, lsm_flag flags)
{
int rc = LSM_ERR_OK;
struct _vector *vec = NULL;
sqlite3 *db = NULL;
char err_msg[_LSM_ERR_MSG_LEN];
char sql_cmd[_BUFF_SIZE];
lsm_hash *sim_fs = NULL;
uint64_t sim_fs_id = 0;
_lsm_err_msg_clear(err_msg);
_good(_check_null_ptr(err_msg, 2 /* argument count */, ss, ss_count),
rc, out);
_good(_get_db_from_plugin_ptr(err_msg, c, &db), rc, out);
_good(_db_sql_trans_begin(err_msg, db), rc, out);
/* Check fs existence */
sim_fs_id = _db_lsm_id_to_sim_id(lsm_fs_id_get(fs));
_good(_db_sim_fs_of_sim_id(err_msg, db, sim_fs_id, &sim_fs), rc, out);
_snprintf_buff(err_msg, rc, out, sql_cmd,
"SELECT * from " _DB_TABLE_FS_SNAPS_VIEW
" WHERE fs_id=%" PRIu64 ";", sim_fs_id);
_good(_db_sql_exec(err_msg, db, sql_cmd, &vec), rc, out);
if (_vector_size(vec) == 0) {
*ss = NULL;
*ss_count = 0;
goto out;
}
_vec_to_lsm_xxx_array(err_msg, vec, lsm_fs_ss, _sim_fs_snap_to_lsm, ss,
ss_count, rc, out);
out:
_db_sql_trans_rollback(db);
_db_sql_exec_vec_free(vec);
if (sim_fs != NULL)
lsm_hash_free(sim_fs);
if (rc != LSM_ERR_OK) {
if ((ss != NULL) && (ss_count != NULL)) {
if (*ss != NULL)
lsm_fs_ss_record_array_free(*ss , *ss_count);
}
if (ss != NULL)
*ss = NULL;
if (ss_count != NULL)
*ss_count = 0;
lsm_log_error_basic(c, rc, err_msg);
}
return rc;
}
void @TYPE@_vector_append_vector(@TYPE@_vector_type * vector , const @TYPE@_vector_type * other) {
@TYPE@_vector_append_many( vector , @TYPE@_vector_get_const_ptr( other ), @TYPE@_vector_size( other ));
}
void @TYPE@_vector_append_many(@TYPE@_vector_type * vector , const @TYPE@ * data , int length) {
@TYPE@_vector_set_many( vector , @TYPE@_vector_size( vector ) , data , length);
}
int fs_delete(lsm_plugin_ptr c, lsm_fs *fs, char **job, lsm_flag flags)
{
int rc = LSM_ERR_OK;
sqlite3 *db = NULL;
char err_msg[_LSM_ERR_MSG_LEN];
lsm_hash *sim_fs = NULL;
uint64_t sim_fs_id = 0;
char sql_cmd[_BUFF_SIZE];
struct _vector *vec = NULL;
_lsm_err_msg_clear(err_msg);
_good(_check_null_ptr(err_msg, 2 /* argument count */, fs, job), rc, out);
_good(_get_db_from_plugin_ptr(err_msg, c, &db), rc, out);
_good(_db_sql_trans_begin(err_msg, db), rc, out);
sim_fs_id = _db_lsm_id_to_sim_id(lsm_fs_id_get(fs));
/* Check fs existence */
_good(_db_sim_fs_of_sim_id(err_msg, db, sim_fs_id, &sim_fs), rc, out);
/* Check fs snapshot status */
_snprintf_buff(err_msg, rc, out, sql_cmd,
"SELECT * FROM " _DB_TABLE_FS_SNAPS_VIEW " WHERE fs_id=%"
PRIu64 ";", sim_fs_id);
_good(_db_sql_exec(err_msg, db, sql_cmd, &vec), rc, out);
if (_vector_size(vec) != 0) {
rc = LSM_ERR_PLUGIN_BUG;
/* TODO(Gris Ge): API does not have dedicate error for this scenario.*/
_lsm_err_msg_set(err_msg, "Specified filesystem has snapshot");
goto out;
}
_db_sql_exec_vec_free(vec);
vec = NULL;
/* Check fs clone(clone here means read and writeable snapshot) */
_snprintf_buff(err_msg, rc, out, sql_cmd,
"SELECT * FROM " _DB_TABLE_FS_CLONES " WHERE src_fs_id = %"
PRIu64 ";", sim_fs_id);
_good(_db_sql_exec(err_msg, db, sql_cmd, &vec), rc, out);
if (_vector_size(vec) != 0) {
rc = LSM_ERR_PLUGIN_BUG;
/* We don't have error number for this yet */
_lsm_err_msg_set(err_msg, "Specified fs is a clone source");
goto out;
}
_good(_db_data_delete(err_msg, db, _DB_TABLE_FSS, sim_fs_id), rc, out);
_good(_job_create(err_msg, db, LSM_DATA_TYPE_NONE, _DB_SIM_ID_NONE, job),
rc, out);
_good(_db_sql_trans_commit(err_msg, db), rc, out);
out:
_db_sql_exec_vec_free(vec);
if (sim_fs != NULL)
lsm_hash_free(sim_fs);
if (rc != LSM_ERR_OK) {
_db_sql_trans_rollback(db);
lsm_log_error_basic(c, rc, err_msg);
if (job != NULL)
*job = NULL;
} else {
rc = LSM_ERR_JOB_STARTED;
}
return rc;
}
