Polishing:

1) add support for joinable threads to Thread class;
2) move checking of thread model to Manager from mysqlmanager.cc,
because it is needed only for IM-main process.


server-tools/instance-manager/instance.cc:
  Use Manager::is_linux_threads() instead of global variable.
server-tools/instance-manager/listener.cc:
  Use Thread::start(DETACHED) instead of Thread::start_detached().
server-tools/instance-manager/manager.cc:
  1. Use Thread::start(DETACHED) instead of Thread::start_detached();
  2. Move checking of thread model to Manager from mysqlmanager.cc,
  because it is needed only for IM-main process.
server-tools/instance-manager/manager.h:
  Move checking of thread model to Manager from mysqlmanager.cc,
  because it is needed only for IM-main process.
server-tools/instance-manager/mysqlmanager.cc:
  Move checking of thread model to Manager from mysqlmanager.cc,
  because it is needed only for IM-main process.
server-tools/instance-manager/priv.cc:
  Move checking of thread model to Manager from mysqlmanager.cc,
  because it is needed only for IM-main process.
server-tools/instance-manager/priv.h:
  Move checking of thread model to Manager from mysqlmanager.cc,
  because it is needed only for IM-main process.
server-tools/instance-manager/thread_registry.cc:
  Add support of joinable threads to Thread class.
server-tools/instance-manager/thread_registry.h:
  Add support of joinable threads to Thread class.

1 files changed, 27 insertions, 2 deletions

diff --git a/server-tools/instance-manager/thread_registry.h b/server-tools/instance-manager/thread_registry.h
index 034ac1b0ca8..b9ece271c21 100644
--- a/server-tools/instance-manager/thread_registry.h
+++ b/server-tools/instance-manager/thread_registry.h
@@ -86,17 +86,42 @@ private:
 class Thread
 {
 public:
-  Thread() {}
-  bool start_detached();
+  enum enum_thread_type
+  {
+    DETACHED,
+    JOINABLE
+  };
+public:
+  Thread()
+  { }
+
+public:
+  inline bool is_detached() const;
+
+  bool start(enum_thread_type thread_type = JOINABLE);
+  bool join();
+
 protected:
   virtual void run()= 0;
   virtual ~Thread();
+
+private:
+  pthread_t id;
+  bool detached;
+
 private:
   static void *thread_func(void *arg);
+
+private:
   Thread(const Thread & /* rhs */);            /* not implemented */
   Thread &operator=(const Thread & /* rhs */); /* not implemented */
 };
 
+inline bool Thread::is_detached() const
+{
+  return detached;
+}
+
 
 /**
   Thread_registry - contains handles for each worker thread to deliver