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authorMartin Mares <mj@ucw.cz>1999-02-13 21:15:36 +0100
committerMartin Mares <mj@ucw.cz>1999-02-13 21:15:36 +0100
commitf4aabcee62890b7c3e999e188ab72752fbb20b79 (patch)
tree99daddcfbae637f7801f8b70b42ee2b5c9e91178 /nest/proto.c
parent7f3d1a0850ff7f240b2f240db6d44b3a5dee6d48 (diff)
downloadbird-f4aabcee62890b7c3e999e188ab72752fbb20b79.tar
bird-f4aabcee62890b7c3e999e188ab72752fbb20b79.zip
Perform gracious shutdown upon receipt of SIGTERM. Finally we can
test the whole protocol shutdown code... :)
Diffstat (limited to 'nest/proto.c')
-rw-r--r--nest/proto.c28
1 files changed, 26 insertions, 2 deletions
diff --git a/nest/proto.c b/nest/proto.c
index 76422e3..f96d37d 100644
--- a/nest/proto.c
+++ b/nest/proto.c
@@ -28,6 +28,8 @@ static list inactive_proto_list;
static list initial_proto_list;
static list flush_proto_list;
+static int proto_shutdown_counter;
+
static event *proto_flush_event;
static char *p_states[] = { "DOWN", "START", "UP", "STOP" };
@@ -178,7 +180,7 @@ proto_rethink_goal(struct proto *p)
static void
proto_set_goal(struct proto *p, unsigned goal)
{
- if (p->disabled)
+ if (p->disabled || shutting_down)
goal = FS_HUNGRY;
p->core_goal = goal;
proto_rethink_goal(p);
@@ -195,6 +197,25 @@ protos_start(void)
}
void
+protos_shutdown(void)
+{
+ struct proto *p, *n;
+
+ debug("Protocol shutdown\n");
+ WALK_LIST_DELSAFE(p, n, inactive_proto_list)
+ if (p->core_state != FS_HUNGRY || p->proto_state != PS_DOWN)
+ {
+ proto_shutdown_counter++;
+ proto_set_goal(p, FS_HUNGRY);
+ }
+ WALK_LIST_DELSAFE(p, n, proto_list)
+ {
+ proto_shutdown_counter++;
+ proto_set_goal(p, FS_HUNGRY);
+ }
+}
+
+void
protos_dump_all(void)
{
struct proto *p;
@@ -235,6 +256,8 @@ static void
proto_fell_down(struct proto *p)
{
DBG("Protocol %s down\n", p->name);
+ if (!--proto_shutdown_counter)
+ protos_shutdown_notify();
proto_rethink_goal(p);
}
@@ -291,6 +314,7 @@ proto_notify_state(struct proto *p, unsigned ps)
cs = FS_FLUSHING;
ev_schedule(proto_flush_event);
}
+ break;
default:
error:
bug("Invalid state transition for %s from %s/%s to */%s", p->name, c_states[cs], p_states[ops], p_states[ps]);
@@ -313,6 +337,6 @@ proto_flush_all(void *unused)
p->pool = NULL;
p->core_state = FS_HUNGRY;
proto_relink(p);
- proto_rethink_goal(p);
+ proto_fell_down(p);
}
}