From af583872625f125eaaa464e76ad8983687598d67 Mon Sep 17 00:00:00 2001
From: Bryan Biedenkapp <gatekeep@gmail.com>
Date: Thu, 10 Mar 2022 17:53:22 -0500
Subject: [PATCH] add helper start/stop scripts (these expect dvmhost to live
 at "/opt/dvmhost");

---
 dvm-watchdog.sh  | 18 ++++++++++++++++++
 start-dvm.sh     | 24 ++++++++++++++++++++++++
 stop-dvm.sh      |  7 +++++++
 stop-watchdog.sh |  7 +++++++
 4 files changed, 56 insertions(+)
 create mode 100644 dvm-watchdog.sh
 create mode 100644 start-dvm.sh
 create mode 100644 stop-dvm.sh
 create mode 100644 stop-watchdog.sh

diff --git a/dvm-watchdog.sh b/dvm-watchdog.sh
new file mode 100644
index 00000000..c139ad45
--- /dev/null
+++ b/dvm-watchdog.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+R_PATH=/opt/dvmhost
+pushd ${R_PATH}
+
+if [ -z $1 ]; then exit 99; fi
+PID_FILE=$1
+CONFIG_FILE=`cat $PID_FILE`
+
+while [ true ]; do
+    pgrep -f "[d]vmhost.*${CONFIG_FILE}" >/dev/null
+    if [ $? -ne 0 ]; then
+        ${R_PATH}/start-dvm.sh ${CONFIG_FILE} >/dev/null
+    fi
+    sleep 5s
+done
+
+popd
+
diff --git a/start-dvm.sh b/start-dvm.sh
new file mode 100644
index 00000000..d004e2d7
--- /dev/null
+++ b/start-dvm.sh
@@ -0,0 +1,24 @@
+#!/bin/bash
+R_PATH=/opt/dvmhost
+pushd ${R_PATH}
+
+if [ "`pwd`" != "${R_PATH}" ]; then exit 99; fi
+if [ -z $1 ]; then exit 2; fi
+
+CONFIG=$1
+if [ ! -f ${R_PATH}/${CONFIG} ]; then exit 3; fi
+
+COMMAND="${R_PATH}/dvmhost -c ${R_PATH}/${CONFIG}"
+nice -n -20 ${COMMAND}
+
+PID=`pgrep -f "${R_PATH}/${CONFIG}"`
+PID_FILE=/tmp/${CONFIG}.pid
+echo "${CONFIG}" > $PID_FILE
+
+pgrep -f "[d]vm-watchdog.*${PID_FILE}" >/dev/null
+if [ $? -ne 0 ]; then
+    ${R_PATH}/dvm-watchdog.sh $PID_FILE &
+fi
+
+popd
+
diff --git a/stop-dvm.sh b/stop-dvm.sh
new file mode 100644
index 00000000..51fb4e9b
--- /dev/null
+++ b/stop-dvm.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+PID=`pgrep dvmhost`
+pgrep dvmhost >/dev/null
+if [ $? -eq 0 ]; then
+    kill -9 $PID
+fi
+
diff --git a/stop-watchdog.sh b/stop-watchdog.sh
new file mode 100644
index 00000000..b6e1684e
--- /dev/null
+++ b/stop-watchdog.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+PID=`pgrep dvm-watchdog.sh`
+pgrep dvm-watchdog.sh >/dev/null
+if [ $? -eq 0 ]; then
+    kill -9 $PID
+fi
+