#!/bin/bash
# Bail if other agents are alive in the state dir.
# $1 = path to this agent's pid file
# cwd = state dir
#
# Exit 0 = continue, exit 1 = bail

my_pid_file=$(basename "$1")

for f in pid-*; do
    [ "$f" = "$my_pid_file" ] && continue
    [ ! -f "$f" ] && continue

    pid=${f#pid-}
    if kill -0 "$pid" 2>/dev/null; then
        exit 1  # another agent is alive, bail
    else
        rm -f "$f"  # stale, clean up
    fi
done

exit 0