1 files changed, 70 insertions, 22 deletions
diff --git a/mysql-test/t/wait_for_process.sh b/mysql-test/t/wait_for_process.sh
index df0f4a17e3a..4c2d89cfea6 100755
--- a/mysql-test/t/wait_for_process.sh
+++ b/mysql-test/t/wait_for_process.sh
@@ -2,34 +2,40 @@
 
 ###########################################################################
 
-pid_path="$1"
-total_attempts="$2"
-event="$3"
+# NOTE: this script returns 0 (success) even in case of failure (except for
+# usage-error). This is because this script is executed under
+# mysql-test-run[.pl] and it's better to examine particular problem in log
+# file, than just having said that the test case has failed.
 
-case "$3" in
-  started)
-    check_fn='check_started';
-    ;;
+###########################################################################
 
-  stopped)
-    check_fn='check_stopped';
-    ;;
+basename=`basename "$0"`
+dirname=`dirname "$0"`
 
-  *)
-    echo "Error: invalid third argument ('started' or 'stopped' expected)."
-    exit 0
-esac
+###########################################################################
+
+. "$dirname/utils.sh"
 
 ###########################################################################
 
 check_started()
 {
-  [ ! -r "$pid_path" ] && return 1
+  if [ ! -r "$pid_path" ]; then
+    log_debug "No PID-file ($pid_path) found -- not started."
+    return 1
+  fi
 
   new_pid=`cat "$pid_path" 2>/dev/null`
+  err_code=$?
+
+  log_debug "err_code: $err_code; new_pid: $new_pid."
 
-  [ $? -eq 0 -a "$original_pid" = "$new_pid" ] && return 1
+  if [ $? -ne 0 -o -z "$new_pid" ]; then
+    log_debug "The process was not started."
+    return 1
+  fi
 
+  log_debug "The process was started."
   return 0
 }
 
@@ -37,30 +43,72 @@ check_started()
 
 check_stopped()
 {
-  [ -r "$pid_path" ] && return 1
+  if [ -r "$pid_path" ]; then
+    log_debug "PID-file '$pid_path' exists -- not stopped."
+    return 1
+  fi
 
+  log_debug "No PID-file ($pid_path) found -- stopped."
   return 0
 }
 
 ###########################################################################
 
+if [ $# -ne 4 ]; then
+  echo "Usage: $basename <pid file path> <total attempts> started|stopped <test id>"
+  exit 1
+fi
+
+pid_path="$1"
+total_attempts="$2"
+event="$3"
+test_id="$4"
+log_file="$MYSQLTEST_VARDIR/log/$test_id.log"
+
+log_debug "-- $basename: starting --"
+log_debug "pid_path: '$pid_path'"
+log_debug "total_attempts: '$total_attempts'"
+log_debug "event: '$event'"
+log_debug "test_id: '$test_id'"
+log_debug "log_file: '$log_file'"
+
+###########################################################################
+
+case "$event" in
+  started)
+    check_fn='check_started';
+    ;;
+
+  stopped)
+    check_fn='check_stopped';
+    ;;
+
+  *)
+    log_error "Invalid third argument ('started' or 'stopped' expected)."
+    quit 0
+esac
+
+###########################################################################
+
 cur_attempt=1
 
 while true; do
 
+  log_debug "cur_attempt: $cur_attempt."
+
   if ( eval $check_fn ); then
-    echo "Success: the process has been $event."
-    exit 0
+    log_info "Success: the process has been $event."
+    quit 0
   fi
 
   [ $cur_attempt -ge $total_attempts ] && break
 
+  log_debug "Sleeping for 1 second..."
   sleep 1
 
   cur_attempt=`expr $cur_attempt + 1`
 
 done
 
-echo "Error: the process has not been $event in $total_attempts secs."
-exit 0
-
+log_error "The process has not been $event in $total_attempts secs."
+quit 0