1 files changed, 114 insertions, 0 deletions
diff --git a/mysql-test/suite/im/t/wait_for_process.sh b/mysql-test/suite/im/t/wait_for_process.sh
new file mode 100755
index 00000000000..2143ab2002f
--- /dev/null
+++ b/mysql-test/suite/im/t/wait_for_process.sh
@@ -0,0 +1,114 @@
+#!/bin/sh
+
+###########################################################################
+
+# 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.
+
+###########################################################################
+
+basename=`basename "$0"`
+dirname=`dirname "$0"`
+
+###########################################################################
+
+. "$dirname/utils.sh"
+
+###########################################################################
+
+check_started()
+{
+  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."
+
+  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
+}
+
+###########################################################################
+
+check_stopped()
+{
+  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.script.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
+    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
+
+log_error "The process has not been $event in $total_attempts secs."
+quit 0