nx_dsup_lib.nx

nx_dsup_lib.nx -- the fleet supervisor's PURE helpers, extracted 2026-09-02 so a gate can drive them IN-PROCESS (nx_daemon_supervisor_gate). Nothing here touches a file, a socket or a clock: decimal emission, bounded append, the conf-key parser, the /proc/<pid>/stat parser the status child uses for its PARENT PROBE, and the progress trailer the supervisor publishes after every row. WHY THIS FILE EXISTS: the conf-key parser that lived inside nx_daemon_supervisor exited its inner loop by writing 99 into the cursor (`k = 99`), which then read key[99] -- 87 bytes PAST the 12-byte "life_cycles=" literal -- and looped forever wherever that rodata byte was non-zero. Every supervisor generation on the NAS spun at 100% CPU before its first probe (parent state=R wchan=0, measured by the status child's own /proc read) while the same binary ticked every 15 s on a laptop that had NO conf. nx_srclint's CURSOR-SENTINEL idiom, inside the organ that supervises the fleet, invisible for as long as the predicate had no gate. Now it has one. license_tier: ORIGINAL No hw writes (Rule 26).