wqueue: Reject messges if queue is considered full
The write queue was always meant to not queue more than the
max_length messages but the implementation never rejected a
message.
Begin to log and enforce the queue size limit, add a testcase
to verify the code and initialize except_cb as part of a fix
for that new test case.
Real applications might now run into the queue limit and drop
messages where they just queued them before. It is unfortunate
but I still think it is good to implement the routine as it was
intended. We need to review osmo_wqueue_enqueue once more to
see that no msgb is leaked.
Change-Id: I1e6aef30f3e73d4bcf2967bc49f0783aa65395ae
diff --git a/.gitignore b/.gitignore
index 90c8c85..50209b0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -95,6 +95,7 @@
tests/gsup/gsup_test
tests/tlv/tlv_test
tests/fsm/fsm_test
+tests/write_queue/wqueue_test
utils/osmo-arfcn
utils/osmo-auc-gen