#include "mesh.h"
#include "mesh_tunnel_tree.h"
+#define MESH_TREE_DEBUG GNUNET_YES
-static void
-debug_node(struct MeshTunnelTreeNode *n, uint16_t level)
-{
- uint16_t i;
-
- for (i = 0; i < level; i++)
- fprintf(stderr, " ");
- fprintf(stderr, "%u\n", n->peer);
- for (i = 0; i < n->nchildren; i++)
- debug_node(&n->children[i], level + 1);
-}
-
-
-void
-tree_debug(struct MeshTunnelTree *t)
+/**
+ * Create a new path
+ *
+ * @param lenght How many hops will the path have.
+ *
+ * @return A newly allocated path with a peer array of the specified length.
+ */
+struct MeshPeerPath *
+path_new (unsigned int length)
{
- debug_node(t->root, 0);
-}
+ struct MeshPeerPath *p;
+ p = GNUNET_malloc (sizeof(struct MeshPeerPath));
+ if (length > 0)
+ {
+ p->length = length;
+ p->peers = GNUNET_malloc (length * sizeof(GNUNET_PEER_Id));
+ }
+ return p;
+}
/**
/**
- * Destroy the path and free any allocated resources linked to it
+ * Duplicate a path, incrementing short peer's rc.
*
- * @param p the path to destroy
- *
- * @return GNUNET_OK on success
+ * @param p The path to duplicate.
*/
-int
-path_destroy (struct MeshPeerPath *p)
+struct MeshPeerPath *
+path_duplicate (struct MeshPeerPath *path)
{
- GNUNET_PEER_decrement_rcs (p->peers, p->length);
- GNUNET_free (p->peers);
- GNUNET_free (p);
- return GNUNET_OK;
+ struct MeshPeerPath *aux;
+ unsigned int i;
+
+ aux = path_new(path->length);
+ memcpy (aux->peers, path->peers, path->length * sizeof(GNUNET_PEER_Id));
+ for (i = 0; i < path->length; i++)
+ GNUNET_PEER_change_rc(path->peers[i], 1);
+ return aux;
}
path_get_first_hop (struct MeshTunnelTree *t, GNUNET_PEER_Id peer)
{
struct GNUNET_PeerIdentity id;
+ struct GNUNET_PeerIdentity *r;
GNUNET_PEER_resolve (peer, &id);
- return GNUNET_CONTAINER_multihashmap_get (t->first_hops,
- &id.hashPubKey);
+ r = GNUNET_CONTAINER_multihashmap_get (t->first_hops, &id.hashPubKey);
+ GNUNET_break (NULL != r);
+
+ return r;
}
}
+/**
+ * Destroy the path and free any allocated resources linked to it
+ *
+ * @param p the path to destroy
+ *
+ * @return GNUNET_OK on success
+ */
+int
+path_destroy (struct MeshPeerPath *p)
+{
+ if (NULL == p)
+ return GNUNET_OK;
+ GNUNET_PEER_decrement_rcs (p->peers, p->length);
+ GNUNET_free (p->peers);
+ GNUNET_free (p);
+ return GNUNET_OK;
+}
+
+
+
+/**
+ * Allocates and initializes a new node.
+ * Sets ID and parent of the new node and inserts it in the DLL of the parent
+ *
+ * @param parent Node that will be the parent from the new node, NULL for root
+ * @param peer Short Id of the new node
+ *
+ * @return Newly allocated node
+ */
+static struct MeshTunnelTreeNode *
+tree_node_new(struct MeshTunnelTreeNode *parent, GNUNET_PEER_Id peer)
+{
+ struct MeshTunnelTreeNode *node;
+
+ node = GNUNET_malloc(sizeof(struct MeshTunnelTreeNode));
+ node->peer = peer;
+ GNUNET_PEER_change_rc(peer, 1);
+ node->parent = parent;
+ if (NULL != parent)
+ GNUNET_CONTAINER_DLL_insert(parent->children_head,
+ parent->children_tail,
+ node);
+
+ return node;
+}
+
+
+static void
+tree_node_debug(struct MeshTunnelTreeNode *n, uint16_t level)
+{
+ struct MeshTunnelTreeNode *c;
+ uint16_t i;
+
+ for (i = 0; i < level; i++)
+ fprintf(stderr, " ");
+ if (n->status == MESH_PEER_READY)
+ fprintf(stderr, "#");
+ if (n->status == MESH_PEER_SEARCHING)
+ fprintf(stderr, "+");
+ if (n->status == MESH_PEER_RELAY)
+ fprintf(stderr, "-");
+ if (n->status == MESH_PEER_RECONNECTING)
+ fprintf(stderr, "*");
+
+ fprintf(stderr, "%u [%p] ", n->peer, n);
+ if (NULL != n->parent)
+ fprintf(stderr, "(-> %u)\n", n->parent->peer);
+ else
+ fprintf(stderr, "(root)\n");
+ for (c = n->children_head; NULL != c; c = c->next)
+ tree_node_debug(c, level + 1);
+}
+
+
+/**
+ * Destroys and frees the node and all children
+ *
+ * @param n Parent node to be destroyed
+ */
+static void
+tree_node_destroy (struct MeshTunnelTreeNode *parent)
+{
+ struct MeshTunnelTreeNode *n;
+ struct MeshTunnelTreeNode *next;
+
+ n = parent->children_head;
+ while (NULL != n)
+ {
+ next = n->next;
+ tree_node_destroy(n);
+ n = next;
+ }
+ GNUNET_PEER_change_rc(parent->peer, -1);
+ if (NULL != parent->parent)
+ GNUNET_CONTAINER_DLL_remove(parent->parent->children_head,
+ parent->parent->children_tail,
+ parent);
+ GNUNET_free(parent);
+}
+
+
+
+/**
+ * Create a new tunnel tree associated to a tunnel
+ *
+ * @param t Tunnel this tree will represent
+ * @param peer A short peer id of the root of the tree
+ *
+ * @return A newly allocated and initialized tunnel tree
+ */
+struct MeshTunnelTree *
+tree_new (struct MeshTunnel *t, GNUNET_PEER_Id peer)
+{
+ struct MeshTunnelTree *tree;
+
+ tree = GNUNET_malloc(sizeof (struct MeshTunnelTree));
+ tree->first_hops = GNUNET_CONTAINER_multihashmap_create(32);
+ tree->root = tree_node_new(NULL, peer);
+ tree->root->status = MESH_PEER_ROOT;
+ tree->t = t;
+ tree->root->t = t;
+
+ return tree;
+}
+
+
/**
* Recursively find the given peer in the tree.
*
* @return Pointer to the node of the peer. NULL if not found.
*/
struct MeshTunnelTreeNode *
-tree_find_peer (struct MeshTunnelTreeNode *root, GNUNET_PEER_Id peer_id)
+tree_find_peer (struct MeshTunnelTreeNode *parent, GNUNET_PEER_Id peer_id)
{
struct MeshTunnelTreeNode *n;
- unsigned int i;
+ struct MeshTunnelTreeNode *r;
- if (root->peer == peer_id)
- return root;
- for (i = 0; i < root->nchildren; i++)
+ if (parent->peer == peer_id)
+ return parent;
+ for (n = parent->children_head; NULL != n; n = n->next)
{
- n = tree_find_peer (&root->children[i], peer_id);
- if (NULL != n)
- return n;
+ r = tree_find_peer (n, peer_id);
+ if (NULL != r)
+ return r;
}
return NULL;
}
* @param parent Node to be clean, potentially with children
* @param cb Callback to use to notify about disconnected peers.
*/
-void
+static void
tree_mark_peers_disconnected (struct MeshTunnelTree *tree,
struct MeshTunnelTreeNode *parent,
MeshNodeDisconnectCB cb)
{
struct GNUNET_PeerIdentity *pi;
struct GNUNET_PeerIdentity id;
- unsigned int i;
+ struct MeshTunnelTreeNode *n;
- for (i = 0; i < parent->nchildren; i++)
+ for (n = parent->children_head; NULL != n; n = n->next)
{
- tree_mark_peers_disconnected (tree, &parent->children[i], cb);
+ tree_mark_peers_disconnected (tree, n, cb);
}
- if (MESH_PEER_READY == parent->status)
+ if (MESH_PEER_READY == parent->status && NULL != cb)
{
cb (parent);
}
parent->status = MESH_PEER_RECONNECTING;
-
+
/* Remove and free info about first hop */
GNUNET_PEER_resolve(parent->peer, &id);
pi = GNUNET_CONTAINER_multihashmap_get(tree->first_hops, &id.hashPubKey);
GNUNET_CONTAINER_multihashmap_remove_all(tree->first_hops, &id.hashPubKey);
if (NULL != pi)
GNUNET_free(pi);
-// FIXME: add to service code on callback
-// struct GNUNET_MESH_PeerControl msg;
-// if (NULL == parent->t->client)
-// return;
-// msg.header.size = htons (sizeof (msg));
-// msg.header.type = htons (GNUNET_MESSAGE_TYPE_MESH_LOCAL_PEER_DEL);
-// msg.tunnel_id = htonl (parent->t->local_tid);
-// GNUNET_PEER_resolve (parent->peer, &msg.peer);
-// if (NULL == nc)
-// return;
-// GNUNET_SERVER_notification_context_unicast (nc, parent->t->client->handle,
-// &msg.header, GNUNET_NO);
}
struct GNUNET_PeerIdentity pi;
struct GNUNET_PeerIdentity *copy;
struct GNUNET_PeerIdentity id;
- unsigned int i;
+ struct MeshTunnelTreeNode *n;
+#if MESH_TREE_DEBUG
+ GNUNET_PEER_resolve(parent->peer, &id);
GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
- "tree: Finding first hop for %u.\n",
- parent->peer);
+ "tree: Finding first hop for %s.\n",
+ GNUNET_i2s (&id));
+#endif
if (NULL == hop)
{
struct MeshTunnelTreeNode *aux;
struct MeshTunnelTreeNode *old;
- old = parent;
- aux = old->parent;
+ aux = old = parent;
while (aux != tree->me)
{
+#if MESH_TREE_DEBUG
+ GNUNET_PEER_resolve(old->peer, &id);
GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
- "tree: ... its not %u.\n",
- old->peer);
+ "tree: ... its not %s.\n",
+ GNUNET_i2s (&id));
+#endif
old = aux;
aux = aux->parent;
GNUNET_assert(NULL != aux);
}
+#if MESH_TREE_DEBUG
+ GNUNET_PEER_resolve(old->peer, &id);
GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
- "tree: It's %u!!\n",
- old->peer);
+ "tree: It's %s!\n",
+ GNUNET_i2s (&id));
+#endif
hop = π
GNUNET_PEER_resolve(old->peer, hop);
}
copy = GNUNET_malloc(sizeof(struct GNUNET_PeerIdentity));
*copy = *hop;
GNUNET_PEER_resolve(parent->peer, &id);
- GNUNET_CONTAINER_multihashmap_put(tree->first_hops, &id.hashPubKey, copy,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
+ GNUNET_CONTAINER_multihashmap_put(
+ tree->first_hops,
+ &id.hashPubKey,
+ copy,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
- for (i = 0; i < parent->nchildren; i++)
+ for (n = parent->children_head; NULL != n; n = n->next)
{
- tree_update_first_hops (tree, &parent->children[i], hop);
+ tree_update_first_hops (tree, n, hop);
}
}
* @param peer Destination peer whose path we want to remove.
* @param cb Callback to use to notify about disconnected peers.
*
- * @return pointer to the pathless node, NULL on error
+ * @return pointer to the pathless node.
+ * NULL when not found
*/
struct MeshTunnelTreeNode *
tree_del_path (struct MeshTunnelTree *t, GNUNET_PEER_Id peer_id,
struct MeshTunnelTreeNode *node;
struct MeshTunnelTreeNode *n;
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "tree: Deleting path to %u.\n", peer_id);
+#if MESH_TREE_DEBUG
+ struct GNUNET_PeerIdentity id;
+ GNUNET_PEER_resolve(peer_id, &id);
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
+ "tree: Deleting path to %s.\n",
+ GNUNET_i2s (&id));
+#endif
if (peer_id == t->root->peer)
return NULL;
- n = tree_find_peer (t->me, peer_id);
+
+ for (n = t->disconnected_head; NULL != n; n = n->next)
+ {
+ if (n->peer == peer_id)
+ {
+ /* Was already pathless, waiting for reconnection */
+ GNUNET_CONTAINER_DLL_remove (t->disconnected_head,
+ t->disconnected_tail,
+ n);
+ return n;
+ }
+ }
+ n = tree_find_peer (t->root, peer_id);
if (NULL == n)
return NULL;
- node = GNUNET_malloc(sizeof(struct MeshTunnelTreeNode));
- *node = *n;
+ node = n;
+
parent = n->parent;
- parent->nchildren--;
+ GNUNET_CONTAINER_DLL_remove(parent->children_head, parent->children_tail, n);
n->parent = NULL;
- *n = parent->children[parent->nchildren];
- parent->children = GNUNET_realloc(parent->children,
- parent->nchildren
- * sizeof(struct MeshTunnelTreeNode));
- while (t->root != parent && MESH_PEER_RELAY == parent->status &&
- 0 == parent->nchildren)
+
+ while (MESH_PEER_RELAY == parent->status && NULL == parent->children_head)
{
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "tree: Deleting node %u.\n", parent->peer);
+#if MESH_TREE_DEBUG
+ GNUNET_PEER_resolve(parent->peer, &id);
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
+ "tree: Deleting node %s.\n",
+ GNUNET_i2s (&id));
+#endif
n = parent->parent;
tree_node_destroy(parent);
parent = n;
}
+#if MESH_TREE_DEBUG
+ GNUNET_PEER_resolve(parent->peer, &id);
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
+ "tree: Not deleted peer %s.\n",
+ GNUNET_i2s (&id));
+#endif
tree_mark_peers_disconnected (t, node, cb);
GNUNET_PEER_Id myid = t->me->peer;
n = tree_find_peer(t->me, peer);
- p = GNUNET_malloc(sizeof(struct MeshPeerPath));
+ p = path_new(0);
/* Building the path (inverted!) */
while (n->peer != myid)
}
+
/**
* Integrate a stand alone path into the tunnel tree.
+ * If the peer toward which the new path is already in the tree, the peer
+ * and its children will be maked as disconnected and the callback
+ * will be called on each one of them. They will be maked as online only after
+ * receiving a PATH ACK for the new path for each one of them, so the caller
+ * should take care of sending a new CREATE PATH message for each disconnected
+ * peer.
*
* @param t Tunnel where to add the new path.
* @param p Path to be integrated.
* - do not disconnect peers until new path is created & connected
*/
int
-tree_add_path (struct MeshTunnelTree *t, const struct MeshPeerPath *p,
- MeshNodeDisconnectCB cb)
+tree_add_path (struct MeshTunnelTree *t,
+ const struct MeshPeerPath *p,
+ MeshNodeDisconnectCB cb)
{
struct MeshTunnelTreeNode *parent;
struct MeshTunnelTreeNode *oldnode;
struct MeshTunnelTreeNode *n;
+ struct MeshTunnelTreeNode *c;
struct GNUNET_PeerIdentity id;
- struct GNUNET_PeerIdentity *hop;
- GNUNET_PEER_Id myid = t->me->peer;
+ GNUNET_PEER_Id myid;
int me;
+// int oldnode_is_me;
unsigned int i;
- unsigned int j;
+#if MESH_TREE_DEBUG
+ GNUNET_PEER_resolve(p->peers[p->length - 1], &id);
GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
- "tree: Adding path [%u] towards peer %u to peer %u.\n",
- p->length,
- p->peers[p->length - 1],
- t->me->peer);
+ "tree: Adding path [%u] towards peer %s.\n",
+ p->length,
+ GNUNET_i2s (&id));
+#endif
+
+ if (NULL != t->me)
+ myid = t->me->peer;
+ else
+ myid = 0;
GNUNET_assert(0 != p->length);
parent = n = t->root;
if (n->peer != p->peers[0])
me = t->root->peer == myid ? 0 : -1;
for (i = 1; i < p->length; i++)
{
+#if MESH_TREE_DEBUG
+ GNUNET_PEER_resolve(p->peers[i], &id);
GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
- "tree: Looking for peer %u.\n",
- p->peers[i]);
+ "tree: Looking for peer %s.\n",
+ GNUNET_i2s (&id));
+#endif
parent = n;
if (p->peers[i] == myid)
me = i;
- for (j = 0; j < n->nchildren; j++)
+ for (c = n->children_head; NULL != c; c = c->next)
{
- if (n->children[j].peer == p->peers[i])
+ if (c->peer == p->peers[i])
{
- n = &n->children[j];
+#if MESH_TREE_DEBUG
+ GNUNET_PEER_resolve(parent->peer, &id);
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
+ "tree: Found in children of %s.\n",
+ GNUNET_i2s (&id));
+#endif
+ n = c;
break;
}
}
if (parent == n)
break;
}
+#if MESH_TREE_DEBUG
GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
"tree: All childen visited.\n");
- if (-1 == me)
- {
- /* New path deviates from tree before reaching us. What happened? */
- GNUNET_break (0);
- return GNUNET_SYSERR;
- }
+#endif
/* Add the rest of the path as a branch from parent. */
while (i < p->length)
{
+#if MESH_TREE_DEBUG
+ GNUNET_PEER_resolve(p->peers[i], &id);
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
+ "tree: Adding peer %s.\n",
+ GNUNET_i2s (&id));
+ GNUNET_PEER_resolve(parent->peer, &id);
GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
- "tree: Adding peer %u, to %u.\n",
- p->peers[i],
- parent->peer);
- parent->nchildren++;
- parent->children = GNUNET_realloc (parent->children,
- parent->nchildren *
- sizeof(struct MeshTunnelTreeNode));
- n = &parent->children[parent->nchildren - 1];
- n->parent = parent;
+ "tree: to %s.\n",
+ GNUNET_i2s (&id));
+#endif
+
if (i == p->length - 1 && NULL != oldnode)
{
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "tree: Putting old node into place.\n");
- /* Assignation and free can be misleading, using explicit mempcy */
- memcpy (n, oldnode, sizeof (struct MeshTunnelTreeNode));
- n->parent = parent;
- GNUNET_free (oldnode);
- for (j = 0; j < n->nchildren; j++)
- {
- n->children[j].parent = n;
- tree_update_first_hops (t, &n->children[j], NULL);
- }
+#if MESH_TREE_DEBUG
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
+ "tree: Putting old node into place.\n");
+#endif
+ oldnode->parent = parent;
+ GNUNET_CONTAINER_DLL_insert(parent->children_head,
+ parent->children_tail,
+ oldnode);
+ tree_update_first_hops (t, oldnode, NULL);
+ n = oldnode;
}
else
{
+#if MESH_TREE_DEBUG
GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "tree: Creating new node.\n");
+#endif
+ n = tree_node_new(parent, p->peers[i]);
n->t = t->t;
n->status = MESH_PEER_RELAY;
- n->peer = p->peers[i];
- n->nchildren = 0;
- n->children = NULL;
}
i++;
parent = n;
n->status = MESH_PEER_SEARCHING;
/* Add info about first hop into hashmap. */
- if (me < p->length - 1)
+ if (-1 != me && me < p->length - 1)
{
- GNUNET_PEER_resolve (p->peers[p->length - 1], &id);
- hop = GNUNET_CONTAINER_multihashmap_get(t->first_hops, &id.hashPubKey);
- if (NULL != hop)
- GNUNET_free(hop);
- hop = GNUNET_malloc(sizeof(struct GNUNET_PeerIdentity));
- GNUNET_PEER_resolve (p->peers[me + 1], hop);
- GNUNET_CONTAINER_multihashmap_put (t->first_hops, &id.hashPubKey,
- hop,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
+#if MESH_TREE_DEBUG
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "MESH: finding first hop (own pos %d/%u)\n",
+ me, p->length - 1);
+#endif
+ GNUNET_PEER_resolve (p->peers[me + 1], &id);
+ tree_update_first_hops(t,
+ tree_find_peer(t->root, p->peers[p->length - 1]),
+ &id);
}
+#if MESH_TREE_DEBUG
GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "tree: New node added.\n");
+#endif
return GNUNET_OK;
}
/**
- * Destroy the node and all children
- *
- * @param n Parent node to be destroyed
+ * Notifies a tree that a connection it might be using is broken.
+ * Marks all peers down the paths as disconnected and notifies the client.
+ *
+ * @param t Tree to use.
+ * @param p1 Short id of one of the peers (order unimportant)
+ * @param p2 Short id of one of the peers (order unimportant)
+ * @param cb Function to call for every peer that is marked as disconnected.
+ *
+ * @return Short ID of the first disconnected peer in the tree.
*/
-void
-tree_node_destroy (struct MeshTunnelTreeNode *n)
+GNUNET_PEER_Id
+tree_notify_connection_broken (struct MeshTunnelTree *t,
+ GNUNET_PEER_Id p1,
+ GNUNET_PEER_Id p2,
+ MeshNodeDisconnectCB cb)
{
- struct MeshTunnelTreeNode *parent;
- unsigned int i;
+ struct MeshTunnelTreeNode *n;
+ struct MeshTunnelTreeNode *c;
- if (n->nchildren != 0)
+ n = tree_find_peer(t->me, p1);
+ if (NULL == n)
+ return 0;
+ if (NULL != n->parent && n->parent->peer == p2)
+ {
+ tree_mark_peers_disconnected(t, n, cb);
+ GNUNET_CONTAINER_DLL_remove(n->parent->children_head,
+ n->parent->children_tail,
+ n);
+ GNUNET_CONTAINER_DLL_insert(t->disconnected_head,
+ t->disconnected_tail,
+ n);
+ return p1;
+ }
+ for (c = n->children_head; NULL != c; c = c->next)
{
- for (i = 0; i < n->nchildren; i++)
+ if (c->peer == p2)
{
- tree_node_destroy(&n->children[i]);
+ tree_mark_peers_disconnected(t, c, cb);
+ GNUNET_CONTAINER_DLL_remove(n->children_head,
+ n->children_tail,
+ c);
+ GNUNET_CONTAINER_DLL_insert(t->disconnected_head,
+ t->disconnected_tail,
+ c);
+ return p2;
}
- if (n->children != NULL)
- GNUNET_free(n->children);
}
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "tree: Destroying node %u.\n", n->peer);
- if (NULL == (parent = n->parent))
- return;
- i = (n - parent->children) / sizeof(struct MeshTunnelTreeNode);
- parent->children[i] = parent->children[parent->nchildren - 1];
- parent->nchildren--;
- parent->children = realloc(parent->children,
- parent->nchildren
- * sizeof(struct MeshTunnelTreeNode));
-
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "tree: Destroyed.\n");
+ return 0;
+}
+
+
+/**
+ * Deletes a peer from a tunnel, liberating all unused resources on the path to
+ * it. It shouldn't have children, if it has they will be destroyed as well.
+ * If the tree is not local and no longer has any paths, the root node will be
+ * destroyed and marked as NULL.
+ *
+ * @param t Tunnel tree to use.
+ * @param peer Short ID of the peer to remove from the tunnel tree.
+ * @param cb Callback to notify client of disconnected peers.
+ *
+ * @return GNUNET_OK or GNUNET_SYSERR
+ */
+int
+tree_del_peer (struct MeshTunnelTree *t,
+ GNUNET_PEER_Id peer,
+ MeshNodeDisconnectCB cb)
+{
+ struct MeshTunnelTreeNode *n;
+
+ n = tree_del_path(t, peer, cb);
+ if (NULL == n)
+ return GNUNET_SYSERR;
+ GNUNET_break_op (NULL == n->children_head);
+ tree_node_destroy(n);
+ if (NULL == t->root->children_head && t->me != t->root)
+ {
+ tree_node_destroy (t->root);
+ t->root = NULL;
+ }
+ return GNUNET_OK;
+}
+
+
+/**
+ * Print the tree on stderr
+ *
+ * @param t The tree
+ */
+void
+tree_debug(struct MeshTunnelTree *t)
+{
+ tree_node_debug(t->root, 0);
}
tree_destroy (struct MeshTunnelTree *t)
{
tree_node_destroy(t->root);
- GNUNET_free(t->root);
GNUNET_CONTAINER_multihashmap_iterate(t->first_hops, &iterate_free, NULL);
GNUNET_CONTAINER_multihashmap_destroy(t->first_hops);
-}
\ No newline at end of file
+ GNUNET_free(t);
+}
projects / oweals / gnunet.git / blobdiff