[arch-projects] [initscripts] [PATCH 09/11] functions: Speed up reboot/shutdown by recognizing killall5 exit code 2

[Kurt J. Bosch]

killall5 returns 2 if it didn't kill any processes. Using this avoids sleeping longer than needed. This saves another up to six seconds of reboot/shutdown/go-single time.
---
 functions |   16 ++++++++++++----
 1 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/functions b/functions
index 69f06eb..401e323 100644
--- a/functions
+++ b/functions
@@ -293,13 +293,21 @@ kill_everything() {

 	# Terminate all processes
 	stat_busy "Sending SIGTERM To Processes"
-		killall5 -15 ${omit_pids[@]/#/-o } &>/dev/null
-		sleep 5
+		local i
+		for (( i=0; i<500; i+=25 )); do
+			killall5 -15 ${omit_pids[@]/#/-o } &>/dev/null
+			(( $? == 2 )) && break
+			sleep .25
+		done
 	stat_done

 	stat_busy "Sending SIGKILL To Processes"
-		killall5 -9 ${omit_pids[@]/#/-o } &>/dev/null
-		sleep 1
+		local i
+		for (( i=0; i<100; i+=25 )); do
+			killall5 -9 ${omit_pids[@]/#/-o } &>/dev/null
+			(( $? == 2 )) && break
+			sleep .25
+		done
 	stat_done

 	run_hook "$1_postkillall"
--
1.7.1