mirror of
https://github.com/openglow-org/forgefirm.git
synced 2026-09-27 16:51:12 -07:00
34 lines
1.6 KiB
Bash
34 lines
1.6 KiB
Bash
#!/bin/sh
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# Runs ON the board. While forgectrl spawns helper children (the update
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# check's curl, the snapshot's media-ctl/v4l2-ctl), scan every child for a
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# descriptor on the pulse device. Expected: none - only the controller
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# inherits /dev/glowforge (F_SETFD cleared for that one spawn); every other
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# child gets the O_CLOEXEC default. Usage: fdscan.sh <panel-token>
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TOK="$1"
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P=$(pidof forgectrl)
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[ -n "$P" ] || { echo "forgectrl not running"; exit 1; }
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CTRL=$(pidof grblHAL_glowforge)
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echo "forgectrl pid $P, controller pid ${CTRL:-none}"
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# Kick the helpers off in the background.
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( curl -s -X POST -H "X-ForgeFIRM-Token: $TOK" http://127.0.0.1:8080/update/check >/tmp/upd.out 2>&1 ) &
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( curl -s -o /tmp/snap.jpg http://127.0.0.1:8080/cam/snapshot ) &
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hits=0; seen=0; names=""
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i=0
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while [ $i -lt 60 ]; do # ~6 s of scanning at 10 Hz
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for c in $(pgrep -P "$P"); do
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seen=$((seen+1))
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n=$(cat /proc/$c/comm 2>/dev/null)
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names="$names $n"
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if ls -l /proc/$c/fd 2>/dev/null | grep -q glowforge; then
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if [ "$c" != "$CTRL" ]; then hits=$((hits+1)); echo "HIT: child $c ($n) holds the pulse device"; ls -l /proc/$c/fd | grep glowforge; fi
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fi
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done
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i=$((i+1)); usleep 100000 2>/dev/null || sleep 0.1
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done
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wait
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echo "children observed: $(echo $names | tr ' ' '\n' | sort | uniq -c | tr '\n' ';')"
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echo "controller holds pulse fd: $(ls -l /proc/$CTRL/fd 2>/dev/null | grep -c glowforge)"
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echo "update/check reply: $(cat /tmp/upd.out | head -c 200)"
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echo "snapshot bytes: $(wc -c < /tmp/snap.jpg 2>/dev/null)"
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echo "non-controller children holding the pulse device: $hits ($([ $hits -eq 0 ] && echo PASS || echo FAIL))"
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