Changes to make upstart log performance stats to a file.

init/job.c

 /* upstart
  *
  * job.c - core state machine of tasks and services
  *
  * Copyright © 2009 Canonical Ltd.
  * Author: Scott James Remnant <scott@netsplit.com>.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2, as
  * published by the Free Software Foundation.
@@ skipping 36 matching lines @@
 #include "events.h"
 #include "environ.h"
 #include "process.h"
 #include "job_class.h"
 #include "job.h"
 #include "job_process.h"
 #include "event.h"
 #include "event_operator.h"
 #include "blocked.h"
 #include "control.h"
+#include "perf_log.h"
 
 #include "com.ubuntu.Upstart.Job.h"
 #include "com.ubuntu.Upstart.Instance.h"
 
 
 /**
  * job_new:
  * @class: class of job,
  * @name: name for new instance.
  *
@@ skipping 210 matching lines @@
         nih_assert (job != NULL);
 
         while (job->state != state) {
                 JobState old_state;
                 int      unused;
 
                 nih_assert (job->blocker == NULL);
 
                 nih_info (_("%s state changed from %s to %s"), job_name (job),
                           job_state_name (job->state), job_state_name (state));
+                perf_log_job_state_change(job, state);
 
                 old_state = job->state;
                 job->state = state;
 
                 /* Perform whatever action is necessary to enter the new
                  * state, such as executing a process or emitting an event.
                  */
                 switch (job->state) {
                 case JOB_STARTING:
                         nih_assert (job->goal == JOB_START);
@@ skipping 1106 matching lines @@
                         return -1;
                 }
 
                 *processes = tmp;
                 (*processes)[num_processes++] = process;
                 (*processes)[num_processes] = NULL;
         }
 
         return 0;
 }