[kvm-unit-tests PATCH 6/6] run scripts: add timeout support

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Signed-off-by: Andrew Jones <drjones@xxxxxxxxxx>
---
 arm/run                | 1 +
 arm/unittests.cfg      | 1 +
 scripts/arch-run.bash  | 8 ++++++++
 scripts/functions.bash | 8 ++++++--
 scripts/runtime.bash   | 7 ++++++-
 x86/run                | 1 +
 x86/unittests.cfg      | 1 +
 7 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/arm/run b/arm/run
index c9463de6dd241..4b9aeb3665436 100755
--- a/arm/run
+++ b/arm/run
@@ -70,6 +70,7 @@ chr_testdev+=' -device virtconsole,chardev=ctd -chardev testdev,id=ctd'
 M+=",accel=$ACCEL"
 command="$qemu $M -cpu $processor $chr_testdev"
 command+=" -display none -serial stdio -kernel"
+command="$(timeout_cmd) $command"
 echo $command "$@"
 
 exit_fixup $command "$@"
diff --git a/arm/unittests.cfg b/arm/unittests.cfg
index 926bbb153728b..8c6c475f050fc 100644
--- a/arm/unittests.cfg
+++ b/arm/unittests.cfg
@@ -15,6 +15,7 @@
 # accel = kvm|tcg		# Optionally specify if test must run with
 #				# kvm or tcg. If not specified, then kvm will
 #				# be used when available.
+# timeout = <duration>		# Optionally specify a timeout.
 ##############################################################################
 
 #
diff --git a/scripts/arch-run.bash b/scripts/arch-run.bash
index 2701f8fb220e8..40c0a460c765f 100644
--- a/scripts/arch-run.bash
+++ b/scripts/arch-run.bash
@@ -19,6 +19,7 @@
 # 1      - most likely QEMU failed
 # 2      - most likely a run script failed
 # 3      - most likely the unittest failed
+# 124    - most likely the unittest timed out
 # 127    - most likely the unittest called abort()
 # 1..127 - FAILURE (could be QEMU, a run script, or the unittest)
 # >= 128 - Signal (signum = status - 128)
@@ -60,3 +61,10 @@ exit_fixup ()
 
 	return $ret
 }
+
+timeout_cmd ()
+{
+	if [ "$TIMEOUT" ] && [ "$TIMEOUT" != "0" ]; then
+		echo "timeout --foreground $TIMEOUT"
+	fi
+}
diff --git a/scripts/functions.bash b/scripts/functions.bash
index f13fe6f88f23d..ee9143c5d630d 100644
--- a/scripts/functions.bash
+++ b/scripts/functions.bash
@@ -11,12 +11,13 @@ function for_each_unittest()
 	local arch
 	local check
 	local accel
+	local timeout
 
 	exec {fd}<"$unittests"
 
 	while read -u $fd line; do
 		if [[ "$line" =~ ^\[(.*)\]$ ]]; then
-			"$cmd" "$testname" "$groups" "$smp" "$kernel" "$opts" "$arch" "$check" "$accel"
+			"$cmd" "$testname" "$groups" "$smp" "$kernel" "$opts" "$arch" "$check" "$accel" "$timeout"
 			testname=${BASH_REMATCH[1]}
 			smp=1
 			kernel=""
@@ -25,6 +26,7 @@ function for_each_unittest()
 			arch=""
 			check=""
 			accel=""
+			timeout=""
 		elif [[ $line =~ ^file\ *=\ *(.*)$ ]]; then
 			kernel=$TEST_DIR/${BASH_REMATCH[1]}
 		elif [[ $line =~ ^smp\ *=\ *(.*)$ ]]; then
@@ -39,8 +41,10 @@ function for_each_unittest()
 			check=${BASH_REMATCH[1]}
 		elif [[ $line =~ ^accel\ *=\ *(.*)$ ]]; then
 			accel=${BASH_REMATCH[1]}
+		elif [[ $line =~ ^timeout\ *=\ *(.*)$ ]]; then
+			timeout=${BASH_REMATCH[1]}
 		fi
 	done
-	"$cmd" "$testname" "$groups" "$smp" "$kernel" "$opts" "$arch" "$check" "$accel"
+	"$cmd" "$testname" "$groups" "$smp" "$kernel" "$opts" "$arch" "$check" "$accel" "$timeout"
 	exec {fd}<&-
 }
diff --git a/scripts/runtime.bash b/scripts/runtime.bash
index c22a6a7883dec..1414bd4f22d32 100644
--- a/scripts/runtime.bash
+++ b/scripts/runtime.bash
@@ -1,5 +1,7 @@
 : "${RUNTIME_arch_run?}"
 
+TIMEOUT=${TIMEOUT:-90s}
+
 qemu=${QEMU:-qemu-system-$ARCH}
 
 function run()
@@ -12,6 +14,7 @@ function run()
     local arch="$6"
     local check="${CHECK:-$7}"
     local accel="${ACCEL:-$8}"
+    local timeout="${9:-$TIMEOUT}" # unittests.cfg overrides the default
 
     if [ -z "$testname" ]; then
         return
@@ -38,7 +41,7 @@ function run()
         fi
     done
 
-    cmdline="TESTNAME=$testname ACCEL=$accel $RUNTIME_arch_run $kernel -smp $smp $opts"
+    cmdline="TESTNAME=$testname TIMEOUT=$timeout ACCEL=$accel $RUNTIME_arch_run $kernel -smp $smp $opts"
     if [ "$verbose" = "yes" ]; then
         echo $cmdline
     fi
@@ -50,6 +53,8 @@ function run()
 
     if [ $ret -eq 0 ]; then
         echo -e "\e[32mPASS\e[0m $1"
+    elif [ $ret -eq 124 ]; then
+        echo -e "\e[32mFAIL\e[0m $1 (timeout; duration=$timeout)"
     else
         echo -e "\e[31mFAIL\e[0m $1"
     fi
diff --git a/x86/run b/x86/run
index b07c815c5a6e1..3386524957a61 100755
--- a/x86/run
+++ b/x86/run
@@ -43,6 +43,7 @@ else
 fi
 
 command="${qemu} -enable-kvm $pc_testdev -vnc none -serial stdio $pci_testdev $hyperv_testdev -kernel"
+command="$(timeout_cmd) $command"
 echo ${command} "$@"
 
 exit_fixup ${command} "$@"
diff --git a/x86/unittests.cfg b/x86/unittests.cfg
index 4a9564536e8ea..b6094a4477ad5 100644
--- a/x86/unittests.cfg
+++ b/x86/unittests.cfg
@@ -12,6 +12,7 @@
 #					# specific to only one.
 # groups = <group_name1> <group_name2> ...	# Used to identify test cases
 #						# with run_tests -g ...
+# timeout = <duration>		# Optionally specify a timeout.
 ##############################################################################
 
 [apic]
-- 
2.4.3

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