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From 0dfe07cbd9e74e0f7f3c85a42085972bf24e1d24 Mon Sep 17 00:00:00 2001
From: David Vossel <dvossel@redhat.com>
Date: Fri, 15 Aug 2014 10:50:06 -0500
Subject: [PATCH] Introducing exit reason string support
---
heartbeat/ocf-shellfuncs.in | 48 ++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 47 insertions(+), 1 deletion(-)
diff --git a/heartbeat/ocf-shellfuncs.in b/heartbeat/ocf-shellfuncs.in
index 254da57..ff7c32d 100644
--- a/heartbeat/ocf-shellfuncs.in
+++ b/heartbeat/ocf-shellfuncs.in
@@ -43,6 +43,14 @@ unset LANGUAGE; export LANGUAGE
__SCRIPT_NAME=`basename $0`
+# This is internal to shellfuncs.
+# When set, ha_log can be used in a way that guarantees
+# that stderr will not be printed to. This allows us to
+# use ocf_exit_reason to print a string to stderr and use
+# ha_log to print the same string to the other log facilities
+# without having duplicate messages sent to stderr.
+__ha_log_ignore_stderr_once=""
+
if [ -z "$OCF_ROOT" ]; then
: ${OCF_ROOT=@OCF_ROOT_DIR@}
fi
@@ -182,12 +190,20 @@ set_logtag() {
}
ha_log() {
+ local ignore_stderr="$__ha_log_ignore_stderr_once"
local loglevel
+
+ # always reset this variable
+ __ha_log_ignore_stderr_once=""
+
[ none = "$HA_LOGFACILITY" ] && HA_LOGFACILITY=""
# if we're connected to a tty, then output to stderr
if tty >/dev/null; then
if [ "x$HA_debug" = "x0" -a "x$loglevel" = xdebug ] ; then
return 0
+ elif [ "$ignore_stderr" = "true" ]; then
+ # something already printed this error to stderr, so ignore
+ return 0
fi
if [ "$HA_LOGTAG" ]; then
echo "$HA_LOGTAG: $*"
@@ -226,7 +242,7 @@ ha_log() {
echo "$HA_LOGTAG: "`hadate`"${*}" >> $HA_LOGFILE
fi
if
- [ -z "$HA_LOGFACILITY" -a -z "$HA_LOGFILE" ]
+ [ -z "$HA_LOGFACILITY" -a -z "$HA_LOGFILE" ] && ! [ "$ignore_stderr" = "true" ]
then
: appending to stderr
echo `hadate`"${*}" >&2
@@ -331,6 +347,36 @@ ocf_log() {
}
#
+# ocf_exit_reason: print exit error string to stderr
+# Usage: Allows the OCF script to provide a string
+# describing why the exit code was returned.
+# Arguments: reason - required, The string that represents why the error
+# occured.
+#
+ocf_exit_reason()
+{
+ local cookie="$OCF_EXIT_REASON_PREFIX"
+ local fmt=$1
+ local msg
+
+ if [ $# -lt 1 ]; then
+ ocf_log err "Not enough arguments [$#] to ocf_log_exit_msg."
+ fi
+ if [ -z "$cookie" ]; then
+ # use a default prefix
+ cookie="ocf-exit-reason:"
+ fi
+
+ shift
+
+ msg=$(printf "${fmt}" "$@")
+
+ printf >&2 "%s${msg}\n" "$cookie"
+ __ha_log_ignore_stderr_once="true"
+ ha_log "ERROR: $msg"
+}
+
+#
# ocf_deprecated: Log a deprecation warning
# Usage: ocf_deprecated [param-name]
# Arguments: param-name optional, name of a boolean resource
--
1.8.4.2