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Diffstat (limited to 'src/ipcpd/normal')
-rw-r--r--src/ipcpd/normal/graph.c86
-rw-r--r--src/ipcpd/normal/graph.h5
-rw-r--r--src/ipcpd/normal/routing.c15
3 files changed, 33 insertions, 73 deletions
diff --git a/src/ipcpd/normal/graph.c b/src/ipcpd/normal/graph.c
index 272576bb..dd6b0e7a 100644
--- a/src/ipcpd/normal/graph.c
+++ b/src/ipcpd/normal/graph.c
@@ -81,29 +81,31 @@ static struct vertex * find_vertex_by_addr(struct graph * graph,
return NULL;
}
-static int add_edge(struct vertex * vertex,
- struct vertex * nb,
- qosspec_t qs)
+static struct edge * add_edge(struct vertex * vertex,
+ struct vertex * nb)
{
struct edge * edge;
edge = malloc(sizeof(*edge));
if (edge == NULL)
- return -ENOMEM;
+ return NULL;
list_head_init(&edge->next);
edge->nb = nb;
- edge->qs = qs;
list_add(&edge->next, &vertex->edges);
- return 0;
+ log_dbg("Added a new edge to the graph.");
+
+ return edge;
}
static void del_edge(struct edge * edge)
{
list_del(&edge->next);
free(edge);
+
+ log_dbg("Removed an edge of the graph.");
}
static struct vertex * add_vertex(struct graph * graph,
@@ -130,6 +132,8 @@ static struct vertex * add_vertex(struct graph * graph,
graph->nr_vertices++;
+ log_dbg("Added new vertex.");
+
return vertex;
}
@@ -148,6 +152,8 @@ static void del_vertex(struct graph * graph,
free(vertex);
+ log_dbg("Removed a vertex from the graph.");
+
graph->nr_vertices--;
}
@@ -191,10 +197,10 @@ void graph_destroy(struct graph * graph)
free(graph);
}
-int graph_add_edge(struct graph * graph,
- uint64_t s_addr,
- uint64_t d_addr,
- qosspec_t qs)
+int graph_update_edge(struct graph * graph,
+ uint64_t s_addr,
+ uint64_t d_addr,
+ qosspec_t qs)
{
struct vertex * v;
struct edge * e;
@@ -209,71 +215,41 @@ int graph_add_edge(struct graph * graph,
v = add_vertex(graph, s_addr);
if (v == NULL) {
pthread_mutex_unlock(&graph->lock);
+ log_err("Failed to add vertex.");
return -ENOMEM;
}
}
- e = find_edge_by_addr(v, d_addr);
- if (e != NULL) {
- pthread_mutex_unlock(&graph->lock);
- log_err("Edge already exists.");
- return -1;
- }
-
nb = find_vertex_by_addr(graph, d_addr);
if (nb == NULL) {
nb = add_vertex(graph, d_addr);
if (nb == NULL) {
+ if (list_is_empty(&v->edges))
+ del_vertex(graph, v);
pthread_mutex_unlock(&graph->lock);
+ log_err("Failed to add vertex.");
return -ENOMEM;
}
}
- if (add_edge(v, nb, qs)) {
- pthread_mutex_unlock(&graph->lock);
- log_err("Failed to add edge.");
- return -1;
- }
-
- pthread_mutex_unlock(&graph->lock);
-
- log_dbg("Added an edge to the graph.");
-
- return 0;
-}
-
-int graph_update_edge(struct graph * graph,
- uint64_t s_addr,
- uint64_t d_addr,
- qosspec_t qs)
-{
- struct vertex * v;
- struct edge * e;
-
- assert(graph);
-
- pthread_mutex_lock(&graph->lock);
-
- v = find_vertex_by_addr(graph, s_addr);
- if (v == NULL) {
- pthread_mutex_unlock(&graph->lock);
- log_err("No such vertex.");
- return -1;
- }
-
e = find_edge_by_addr(v, d_addr);
if (e == NULL) {
- pthread_mutex_unlock(&graph->lock);
- log_err("No such edge.");
- return -1;
+ e = add_edge(v, nb);
+ if (e == NULL) {
+ if (list_is_empty(&v->edges))
+ del_vertex(graph, v);
+ if (list_is_empty(&nb->edges))
+ del_vertex(graph, v);
+ pthread_mutex_unlock(&graph->lock);
+ log_err("Failed to add edge.");
+ return -ENOMEM;
+ }
}
e->qs = qs;
pthread_mutex_unlock(&graph->lock);
- log_dbg("Updated an edge of the graph.");
-
return 0;
}
@@ -321,8 +297,6 @@ int graph_del_edge(struct graph * graph,
pthread_mutex_unlock(&graph->lock);
- log_dbg("Removed an edge of the graph.");
-
return 0;
}
diff --git a/src/ipcpd/normal/graph.h b/src/ipcpd/normal/graph.h
index 226092c7..70be8626 100644
--- a/src/ipcpd/normal/graph.h
+++ b/src/ipcpd/normal/graph.h
@@ -37,11 +37,6 @@ struct graph * graph_create(void);
void graph_destroy(struct graph * graph);
-int graph_add_edge(struct graph * graph,
- uint64_t s_addr,
- uint64_t d_addr,
- qosspec_t qs);
-
int graph_update_edge(struct graph * graph,
uint64_t s_addr,
uint64_t d_addr,
diff --git a/src/ipcpd/normal/routing.c b/src/ipcpd/normal/routing.c
index 998b294a..bf736311 100644
--- a/src/ipcpd/normal/routing.c
+++ b/src/ipcpd/normal/routing.c
@@ -235,23 +235,14 @@ static int read_fso(char * path,
return -1;
}
- if (flag & RO_CREATE) {
- if (graph_add_edge(routing.graph,
- fso->s_addr, fso->d_addr, qs)) {
- log_err("Failed to add edge to graph.");
- fso__free_unpacked(fso, NULL);
- return -1;
- }
- } else if (flag & RO_MODIFY) {
+ if (flag & RO_MODIFY) {
if (graph_update_edge(routing.graph,
fso->s_addr, fso->d_addr, qs)) {
- log_err("Failed to update edge of graph.");
fso__free_unpacked(fso, NULL);
return -1;
}
} else if (flag & RO_DELETE) {
if (graph_del_edge(routing.graph, fso->s_addr, fso->d_addr)) {
- log_err("Failed to del edge of graph.");
fso__free_unpacked(fso, NULL);
return -1;
}
@@ -272,8 +263,7 @@ static void * rib_listener(void * o)
(void) o;
- if (ro_set_add(routing.set, ROUTING_PATH,
- RO_MODIFY | RO_CREATE | RO_DELETE)) {
+ if (ro_set_add(routing.set, ROUTING_PATH, RO_MODIFY | RO_DELETE)) {
log_err("Failed to add to RO set");
return (void * ) -1;
}
@@ -292,6 +282,7 @@ static void * rib_listener(void * o)
}
while (rib_event_wait(routing.set, routing.queue, NULL) == 0) {
+ path[0] = '\0';
flag = rqueue_next(routing.queue, path);
if (flag < 0)
continue;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 06:10:06 +0000