mirror of
https://github.com/troglobit/finit.git
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123 lines
3.9 KiB
Bash
Executable File
123 lines
3.9 KiB
Bash
Executable File
#!/bin/sh
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# Verify transitive dependency chain during reload and crash
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#
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# Three services in a chain: A → B → C, where B depends on pid/A
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# and C depends on pid/B. B is placed in a sub-config file so
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# we can use 'initctl touch' on it. B uses <!pid/svc_a> (with
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# leading '!') so it does not support SIGHUP, causing a full
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# stop/start cycle on 'initctl touch svc_b.conf' + reload.
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#
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# Test 1 - touch + reload:
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# After 'initctl touch svc_b.conf' + 'initctl reload':
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# - A should be unaffected (same PID)
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# - B is restarted (config was touched, noreload)
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# - C must be restarted (transitive, depends on pid/B)
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#
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# Test 2 - crash (kill -9):
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# When B is killed with SIGKILL the crash path (RUNNING →
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# HALTED) bypasses STOPPING, where cond_clear() used to be
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# the only call site. The pidfile plugin only watches for
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# IN_CLOSE_WRITE, so neither the pidfile removal (IN_DELETE)
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# nor a pidfile touch (IN_ATTRIB) triggers an inotify event.
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# Without the fix in service_cleanup(), pid/B is never
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# invalidated and C is never restarted.
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set -eu
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TEST_DIR=$(dirname "$0")
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test_teardown()
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{
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say "Running test teardown."
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run "rm -f $FINIT_RCSD/svc_b.conf"
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}
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pidof()
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{
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texec initctl -j status "$1" | jq .pid
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}
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test_setup()
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{
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run "cat >> $FINIT_CONF" <<EOF
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service log:stdout notify:pid name:svc_a serv -np -i svc_a -- Chain root
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service log:stdout notify:pid <pid/svc_b> name:svc_c serv -np -i svc_c -- Needs B
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EOF
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run "echo 'service log:stdout notify:pid <!pid/svc_a> name:svc_b serv -np -i svc_b -- Needs A' > $FINIT_RCSD/svc_b.conf"
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}
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# shellcheck source=/dev/null
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. "$TEST_DIR/lib/setup.sh"
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sep "Configuration"
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run "cat $FINIT_CONF"
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run "cat $FINIT_RCSD/svc_b.conf"
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say "Reload Finit to start all services"
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run "initctl reload"
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say "Wait for full chain to start"
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retry 'assert_status "svc_c" "running"' 10 1
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run "initctl status"
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run "initctl cond dump"
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# ――――――――――――――――――――――――――――――――――――――――――――――――――――――
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# Test 1: touch + reload
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# ――――――――――――――――――――――――――――――――――――――――――――――――――――――
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sep "Test 1: Touch B and global reload"
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pid_a=$(pidof svc_a)
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pid_b=$(pidof svc_b)
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pid_c=$(pidof svc_c)
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say "PIDs before: A=$pid_a B=$pid_b C=$pid_c"
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run "initctl touch svc_b.conf"
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run "initctl reload"
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say "Wait for chain to settle"
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retry 'assert_status "svc_c" "running"' 15 1
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run "initctl status"
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run "initctl cond dump"
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new_pid_a=$(pidof svc_a)
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new_pid_b=$(pidof svc_b)
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new_pid_c=$(pidof svc_c)
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say "PIDs after: A=$new_pid_a B=$new_pid_b C=$new_pid_c"
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# shellcheck disable=SC2086
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assert "A was not restarted" $new_pid_a -eq $pid_a
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# shellcheck disable=SC2086
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assert "B was restarted (touched)" $new_pid_b -ne $pid_b
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# shellcheck disable=SC2086
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assert "C was restarted (transitive dep)" $new_pid_c -ne $pid_c
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# ――――――――――――――――――――――――――――――――――――――――――――――――――――――
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# Test 2: crash (kill -9), bypasses STOPPING
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# ――――――――――――――――――――――――――――――――――――――――――――――――――――――
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sep "Test 2: Kill B with SIGKILL (bypasses STOPPING)"
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pid_b=$(pidof svc_b)
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pid_c=$(pidof svc_c)
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say "PIDs before: B=$pid_b C=$pid_c"
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run "kill -9 $pid_b"
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say "Wait for B to respawn and chain to settle"
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retry 'assert_status "svc_c" "running"' 15 1
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run "initctl status"
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run "initctl cond dump"
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new_pid_b=$(pidof svc_b)
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new_pid_c=$(pidof svc_c)
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say "PIDs after: B=$new_pid_b C=$new_pid_c"
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# shellcheck disable=SC2086
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assert "B was restarted (crashed+respawn)" $new_pid_b -ne $pid_b
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# shellcheck disable=SC2086
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assert "C was restarted (transitive dep)" $new_pid_c -ne $pid_c
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return 0
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