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fix: when deciding if we need to propagate a reply, skip branches scheduled for cancellation but with no replies yet #3687

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fix: when deciding if we need to propagate a reply, skip branches scheduled for cancellation but with no replies yet #3687

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5 changes: 5 additions & 0 deletions modules/tm/t_reply.c
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Original file line number Diff line number Diff line change
Expand Up @@ -833,6 +833,11 @@ static inline int t_pick_branch( struct cell *t, int *res_code, int *do_cancel)
continue;
/* skip 'empty branches' */
if (!t->uac[b].request.buffer.s) continue;

/* skip branches with no replies yet, but which were marked to
* be cancelled via t_cancel_branch */
if (t->uac[b].flags & T_UAC_TO_CANCEL_FLAG) continue;

/* there is still an unfinished UAC transaction; wait now! */
if ( t->uac[b].last_received<200 ) {
if (t->uac[b].br_flags & minor_branch_flag) {
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