Various fixes (cleanups, valgrind, makefiles, ...)

server-tools/instance-manager/Makefile.am:
  increased default_monitoring interval
server-tools/instance-manager/guardian.cc:
  some fixes for proper shutdown
server-tools/instance-manager/guardian.h:
  removed init() prototype, as it was never used
server-tools/instance-manager/instance.cc:
  cleanup() function removed
server-tools/instance-manager/instance.h:
  cleanup() prototype removed
server-tools/instance-manager/instance_map.cc:
  Instance_map::cleanup() removed, as instances have nothing to clean up
server-tools/instance-manager/instance_map.h:
  Instance_map::cleanup() prototype removed
server-tools/instance-manager/instance_options.cc:
  added print_argv() function for debug purposes
server-tools/instance-manager/instance_options.h:
  declared print_argv()
server-tools/instance-manager/listener.cc:
  some fixed in listener for proper shutdown
server-tools/instance-manager/log.cc:
  cleanup
server-tools/instance-manager/log.h:
  cleanup
server-tools/instance-manager/manager.cc:
  some comments added
server-tools/instance-manager/mysqlmanager.cc:
  we need to free memory in the very end
server-tools/instance-manager/options.cc:
  fixed default options handling (as they were not working properly), added new method to cleanup Options
server-tools/instance-manager/options.h:
  cleanup() declared
server-tools/instance-manager/thread_registry.cc:
  cleanup
server-tools/instance-manager/user_map.cc:
  missing password file is not a critical error anymore, as IM should be able to work as mysqld_safe only

1 files changed, 13 insertions, 5 deletions

diff --git a/server-tools/instance-manager/manager.cc b/server-tools/instance-manager/manager.cc
index 6d9ee569d04..b48c020786f 100644
--- a/server-tools/instance-manager/manager.cc
+++ b/server-tools/instance-manager/manager.cc
@@ -127,6 +127,12 @@ void manager(const Options &options)
     pthread_attr_t guardian_thd_attr;
     int rc;
 
+    /*
+       NOTE: Guardian should be shutdowned first. Only then all other threads
+       need to be stopped. This should be done, as guardian is responsible for
+       shutting down the instances, and this is a long operation.
+    */
+
     pthread_attr_init(&guardian_thd_attr);
     pthread_attr_setdetachstate(&guardian_thd_attr, PTHREAD_CREATE_DETACHED);
     rc= pthread_create(&guardian_thd_id, &guardian_thd_attr, guardian,
@@ -160,6 +166,11 @@ void manager(const Options &options)
     making the list. And they in their turn need alarms for timeout suppport.
   */
   guardian_thread.start();
+  /*
+    After the list of guarded instances have been initialized,
+    Guardian should start them.
+  */
+  pthread_cond_signal(&guardian_thread.COND_guardian);
 
   signal(SIGPIPE, SIG_IGN);
 
@@ -176,14 +187,14 @@ void manager(const Options &options)
         /* wake threads waiting for an instance to shutdown */
         pthread_cond_broadcast(&instance_map.pid_cond.COND_pid);
         /* wake guardian */
-        pthread_cond_broadcast(&guardian_thread.COND_guardian);
+        pthread_cond_signal(&guardian_thread.COND_guardian);
       break;
       default:
         if (!guardian_thread.is_stopped)
         {
           guardian_thread.request_stop_instances();
           guardian_thread.shutdown();
-          pthread_cond_broadcast(&guardian_thread.COND_guardian);
+          pthread_cond_signal(&guardian_thread.COND_guardian);
         }
         else
         {
@@ -198,9 +209,6 @@ err:
   /* delete the pid file */
   my_delete(options.pid_file_name, MYF(0));
 
-  /* close permanent connections to the running instances */
-  instance_map.cleanup();
-
   /* free alarm structures */
   end_thr_alarm(1);
   /* don't pthread_exit to kill all threads who did not shut down in time */