58 lines
1.6 KiB
Bash
Executable File
58 lines
1.6 KiB
Bash
Executable File
#!/usr/bin/env nix-shell
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#!nix-shell -i bash -p procps
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# Basic exponential backoff, this should save some resources if we're blocked by
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# the same thing for a while
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delay() {
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sleep "$delay_time"
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delay_time="$((delay_time*2))"
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if [ "$delay_time" -gt 45 ]; then
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delay_time=45
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fi
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}
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wait_item() {
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delay_time=1
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while $1 > /dev/null 2>&1; do
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echo "Blocking suspend for $1"
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waited=1
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delay
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done
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}
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##################################### below is original, not shared with upstream sxmo_hook_block_suspend.sh
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casting_go2tv() {
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pgrep -f go2tv
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}
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# forward to the next block_suspend.sh script (if any).
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# have to handle the case where this script is on PATH, and also when it was called without being on PATH.
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# the implementation here causes us to call ourselves exactly once, at most (or twice, if there are duplicate PATH entries)
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SXMO_HOOK_BLOCK_SUSPEND_DEPTH=$((${SXMO_HOOK_BLOCK_SUSPEND_DEPTH:-0} + 1))
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echo "recurse counter: $SXMO_HOOK_BLOCK_SUSPEND_DEPTH"
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block_suspend_next=true
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FWD_COUNT=0
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IFS=:
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for p in $PATH ; do
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echo "testing: $p/sxmo_hook_block_suspend.sh"
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if $(test -x "$p/sxmo_hook_block_suspend.sh"); then
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FWD_COUNT=$(($FWD_COUNT + 1))
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fi
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if [ "$FWD_COUNT" -eq "$SXMO_HOOK_BLOCK_SUSPEND_DEPTH" ]; then
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block_suspend_next="$p/sxmo_hook_block_suspend.sh"
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break
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fi
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done
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while [ "$waited" != "0" ]; do
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waited=0
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echo "forwarding to: $block_suspend_next"
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SXMO_HOOK_BLOCK_SUSPEND_DEPTH="$SXMO_HOOK_BLOCK_SUSPEND_DEPTH" "$block_suspend_next"
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# wait for my own items last. else, we could wait for go2tv, then wait for internals, and in the meantime go2tv was re-spawned.
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wait_item casting_go2tv
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done
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