/*
* MI function to reload db table or env
* expects 1 node: the tablename or dbenv name to reload
*/
struct mi_root* mi_bdb_reload(struct mi_root *cmd, void *param)
{
struct mi_node *node;
str *db_path;
node = cmd->node.kids;
if (node && node->next)
return init_mi_tree( 400, MI_MISSING_PARM_S, MI_MISSING_PARM_LEN);
db_path = &node->value;
if (!db_path || db_path->len == 0)
return init_mi_tree( 400, "bdb_reload missing db arg", 21);
if (bdb_reload(db_path->s) == 0)
{
return init_mi_tree( 200, MI_OK_S, MI_OK_LEN);
}
else
{
return init_mi_tree( 500, "db_berkeley Reload Failed", 26);
}
}
/*
* Attempts to reload a Berkeley database; reloads when the inode changes
*/
void bdb_check_reload(db_con_t* _con)
{
str s;
char* p;
int rc, len;
struct stat st;
database_p db;
char n[MAX_ROW_SIZE];
char t[MAX_TABLENAME_SIZE];
table_p tp = NULL;
tbl_cache_p tbc = NULL;
p=n;
rc = len = 0;
/*get dbenv name*/
db = BDB_CON_CONNECTION(_con);
if(!db->dbenv) return;
s.s = db->name.s;
s.len = db->name.len;
len+=s.len;
if(len > MAX_ROW_SIZE)
{ LM_ERR("dbenv name too long \n");
return;
}
strncpy(p, s.s, s.len);
p+=s.len;
len++;
if(len > MAX_ROW_SIZE)
{ LM_ERR("dbenv name too long \n");
return;
}
/*append slash */
*p = '/';
p++;
/*get table name*/
s.s = (char*)CON_TABLE(_con);
s.len = strlen(CON_TABLE(_con));
len+=s.len;
if((len>MAX_ROW_SIZE) || (s.len > MAX_TABLENAME_SIZE) )
{ LM_ERR("table name too long \n");
return;
}
strncpy(t, s.s, s.len);
t[s.len] = 0;
strncpy(p, s.s, s.len);
p+=s.len;
*p=0;
if( (tbc = bdblib_get_table(db, &s)) == NULL)
return;
if( (tp = tbc->dtp) == NULL)
return;
LM_DBG("stat file [%.*s]\n", len, n);
rc = stat(n, &st);
if(!rc)
{ if((tp->ino!=0) && (st.st_ino != tp->ino))
bdb_reload(t); /*file changed on disk*/
tp->ino = st.st_ino;
}
}
