Fix control chain leak#6
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lmdiazangulo merged 2 commits intodevfrom May 8, 2026
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Every call to cp_evloop() via ngSpice_Command() appended a new struct control node to the control[stackp] linked chain but the executed nodes were never freed. Over thousands of command calls (e.g. repeated 'alter' commands in MTLN co-simulation) the chain grew without bound, leaking ~4 KB per step. After executing a top-level block (co_parent == NULL), free the entire chain via ctl_free(control[stackp]) and reset the pointers. The comment '/* va: TODO: free old structure ... */' in the same function acknowledged this gap. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Alberto-o
approved these changes
May 8, 2026
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