fsm: add flag to ensure osmo_fsm_inst_term() happens only once
To prevent re-entering osmo_fsm_inst_term() twice for the same osmo_fsm_inst,
add flag osmo_fsm_inst.proc.terminating. osmo_fsm_inst_term() sets this to
true, or exits if it already is true.
Update fsm_dealloc_test.err for illustration. It is not relevant for unit
testing yet, just showing the difference.
Change-Id: I0c02d76a86f90c49e0eae2f85db64704c96a7674
diff --git a/src/fsm.c b/src/fsm.c
index d86ff4b..d18406a 100644
--- a/src/fsm.c
+++ b/src/fsm.c
@@ -710,6 +710,12 @@
struct osmo_fsm_inst *parent;
uint32_t parent_term_event = fi->proc.parent_term_event;
+ if (fi->proc.terminating) {
+ LOGPFSMSRC(fi, file, line, "Ignoring trigger to terminate: already terminating\n");
+ return;
+ }
+ fi->proc.terminating = true;
+
LOGPFSMSRC(fi, file, line, "Terminating (cause = %s)\n",
osmo_fsm_term_cause_name(cause));