diff options
Diffstat (limited to 'node.c')
| -rw-r--r-- | node.c | 54 |
1 files changed, 54 insertions, 0 deletions
@@ -163,6 +163,60 @@ error_t node_create_proxy (lnode_t * lnode, node_t ** node) } /*node_create_proxy */ /*---------------------------------------------------------------------------*/ +/*Creates a proxy (or a shadow) node for the supplied port*/ +error_t node_create_from_port (mach_port_t port, node_t ** node) +{ + error_t err = 0; + + /*Create a new netnode */ + netnode_t * netnode_new = malloc (sizeof (netnode_t)); + + /*Reset the memory allocated for the new netnode (just in case :-) ) */ + memset (netnode_new, 0, sizeof (netnode_t)); + + /*If the memory could not be allocated */ + if (netnode_new == NULL) + err = ENOMEM; + else + { + /*create a new node from the netnode */ + node_t * node_new = netfs_make_node (netnode_new); + + /*If the creation failed */ + if (node_new == NULL) + { + /*set the error code */ + err = ENOMEM; + + /*destroy the netnode created above */ + free (netnode_new); + + /*stop */ + return err; + } + + /*this node is ``orphan'' -- it is not associated to any lnode + and has some service functions only */ + node_new->nn->lnode = NULL; + + /*setup the information in the netnode */ + node_new->nn->flags = 0; + node_new->nn->ncache_next = node_new->nn->ncache_prev = NULL; + + /*initialize the data fields dealing with positioning this node + in the dynamic translator stack */ + node_new->nn->trans_cntl = MACH_PORT_NULL; + node_new->nn->below = NULL; + + /*store the result of creation in the second parameter */ + *node = node_new; + } + + /*Return the result of operations */ + return err; +} /*node_create_from_port */ + +/*---------------------------------------------------------------------------*/ /*Destroys the specified node and removes a light reference from the associated light node*/ void node_destroy (node_t * np) |