X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=src%2Fgraph.c;h=b18d06105660aa0196bb35b0211bf6e2cde156c8;hb=c6cc7da56d108f05ea6f9a2f765f699e6e2353db;hp=233cf5442a4e000e612a8a64f6b384de65ffeaf4;hpb=fb7b6e7a0c966a88a682f656ca1caeb9a0583c5b;p=meshlink diff --git a/src/graph.c b/src/graph.c index 233cf544..b18d0610 100644 --- a/src/graph.c +++ b/src/graph.c @@ -48,6 +48,7 @@ #include "graph.h" #include "list.h" #include "logger.h" +#include "meshlink_internal.h" #include "netutl.h" #include "node.h" #include "protocol.h" @@ -60,22 +61,22 @@ Please note that sorting on weight is already done by add_edge(). */ -static void mst_kruskal(void) { +static void mst_kruskal(meshlink_handle_t *mesh) { /* Clear MST status on connections */ - for list_each(connection_t, c, connection_list) + for list_each(connection_t, c, mesh->connections) c->status.mst = false; - logger(DEBUG_SCARY_THINGS, LOG_DEBUG, "Running Kruskal's algorithm:"); + logger(mesh, MESHLINK_DEBUG, "Running Kruskal's algorithm:"); /* Clear visited status on nodes */ - for splay_each(node_t, n, node_tree) + for splay_each(node_t, n, mesh->nodes) n->status.visited = false; /* Starting point */ - for splay_each(edge_t, e, edge_weight_tree) { + for splay_each(edge_t, e, mesh->edges) { if(e->from->status.reachable) { e->from->status.visited = true; break; @@ -86,7 +87,7 @@ static void mst_kruskal(void) { bool skipped = false; - for splay_each(edge_t, e, edge_weight_tree) { + for splay_each(edge_t, e, mesh->edges) { if(!e->reverse || (e->from->status.visited == e->to->status.visited)) { skipped = true; continue; @@ -101,11 +102,11 @@ static void mst_kruskal(void) { if(e->reverse->connection) e->reverse->connection->status.mst = true; - logger(DEBUG_SCARY_THINGS, LOG_DEBUG, " Adding edge %s - %s weight %d", e->from->name, e->to->name, e->weight); + logger(mesh, MESHLINK_DEBUG, " Adding edge %s - %s weight %d", e->from->name, e->to->name, e->weight); if(skipped) { skipped = false; - next = edge_weight_tree->head; + next = mesh->edges->head; } } } @@ -114,31 +115,31 @@ static void mst_kruskal(void) { Running time: O(E) */ -static void sssp_bfs(void) { +static void sssp_bfs(meshlink_handle_t *mesh) { list_t *todo_list = list_alloc(NULL); /* Clear visited status on nodes */ - for splay_each(node_t, n, node_tree) { + for splay_each(node_t, n, mesh->nodes) { n->status.visited = false; n->status.indirect = true; n->distance = -1; } - /* Begin with myself */ + /* Begin with mesh->self */ - myself->status.visited = true; - myself->status.indirect = false; - myself->nexthop = myself; - myself->prevedge = NULL; - myself->via = myself; - myself->distance = 0; - list_insert_head(todo_list, myself); + mesh->self->status.visited = true; + mesh->self->status.indirect = false; + mesh->self->nexthop = mesh->self; + mesh->self->prevedge = NULL; + mesh->self->via = mesh->self; + mesh->self->distance = 0; + list_insert_head(todo_list, mesh->self); /* Loop while todo_list is filled */ for list_each(node_t, n, todo_list) { /* "n" is the node from which we start */ - logger(DEBUG_SCARY_THINGS, LOG_DEBUG, " Examining edges from %s", n->name); + logger(mesh, MESHLINK_DEBUG, " Examining edges from %s", n->name); if(n->distance < 0) abort(); @@ -173,14 +174,14 @@ static void sssp_bfs(void) { e->to->status.visited = true; e->to->status.indirect = indirect; - e->to->nexthop = (n->nexthop == myself) ? e->to : n->nexthop; + e->to->nexthop = (n->nexthop == mesh->self) ? e->to : n->nexthop; e->to->prevedge = e; e->to->via = indirect ? n->via : e->to; e->to->options = e->options; e->to->distance = n->distance + 1; if(!e->to->status.reachable || (e->to->address.sa.sa_family == AF_UNSPEC && e->address.sa.sa_family != AF_UNKNOWN)) - update_node_udp(e->to, &e->address); + update_node_udp(mesh, e->to, &e->address); list_insert_tail(todo_list, e->to); } @@ -192,19 +193,19 @@ static void sssp_bfs(void) { list_free(todo_list); } -static void check_reachability(void) { +static void check_reachability(meshlink_handle_t *mesh) { /* Check reachability status. */ - for splay_each(node_t, n, node_tree) { + for splay_each(node_t, n, mesh->nodes) { if(n->status.visited != n->status.reachable) { n->status.reachable = !n->status.reachable; - n->last_state_change = now.tv_sec; + n->last_state_change = mesh->loop.now.tv_sec; if(n->status.reachable) { - logger(DEBUG_TRAFFIC, LOG_DEBUG, "Node %s (%s) became reachable", + logger(mesh, MESHLINK_DEBUG, "Node %s (%s) became reachable", n->name, n->hostname); } else { - logger(DEBUG_TRAFFIC, LOG_DEBUG, "Node %s (%s) became unreachable", + logger(mesh, MESHLINK_DEBUG, "Node %s (%s) became unreachable", n->name, n->hostname); } @@ -220,24 +221,24 @@ static void check_reachability(void) { n->minmtu = 0; n->mtuprobes = 0; - timeout_del(&n->mtutimeout); + timeout_del(&mesh->loop, &n->mtutimeout); - //TODO: callback to application to inform of this node going up/down + update_node_status(mesh, n); if(!n->status.reachable) { - update_node_udp(n, NULL); + update_node_udp(mesh, n, NULL); memset(&n->status, 0, sizeof n->status); n->options = 0; } else if(n->connection) { if(n->connection->outgoing) - send_req_key(n); + send_req_key(mesh, n); } } } } -void graph(void) { - sssp_bfs(); - check_reachability(); - mst_kruskal(); +void graph(meshlink_handle_t *mesh) { + sssp_bfs(mesh); + check_reachability(mesh); + mst_kruskal(mesh); }