posix: Rework thread cancellation

Add Thread_Life_state::THREAD_LIFE_CHANGE_DEFERRED and rework the POSIX
thread cancellation to use the thread life states.

Update #2555.
Update #2626.

1 files changed, 4 insertions, 25 deletions

diff --git a/cpukit/posix/src/pthreadexit.c b/cpukit/posix/src/pthreadexit.c
index 3c4d3ebaaf..53c42ff3d0 100644
--- a/cpukit/posix/src/pthreadexit.c
+++ b/cpukit/posix/src/pthreadexit.c
@@ -9,6 +9,8 @@
  *  COPYRIGHT (c) 1989-2011.
  *  On-Line Applications Research Corporation (OAR).
  *
+ *  Copyright (c) 2016 embedded brains GmbH.
+ *
  *  The license and distribution terms for this file may be
  *  found in the file LICENSE in this distribution or at
  *  http://www.rtems.org/license/LICENSE.
@@ -20,41 +22,18 @@
 
 #include <pthread.h>
 
-#include <rtems/posix/pthreadimpl.h>
-#include <rtems/score/assert.h>
-#include <rtems/score/apimutex.h>
 #include <rtems/score/threadimpl.h>
-#include <rtems/score/threadqimpl.h>
 
-void _POSIX_Thread_Exit(
-  Thread_Control *the_thread,
-  void           *value_ptr
-)
+void pthread_exit( void *value_ptr )
 {
   Thread_Control  *executing;
   Per_CPU_Control *cpu_self;
 
-  _Assert( _Debug_Is_thread_dispatching_allowed() );
-
   cpu_self = _Thread_Dispatch_disable();
   executing = _Per_CPU_Get_executing( cpu_self );
 
-  /*
-   *  Now shut down the thread
-   */
-  if ( the_thread == executing ) {
-    _Thread_Exit( executing, THREAD_LIFE_TERMINATING, value_ptr );
-  } else {
-    _Thread_Cancel( the_thread, executing, value_ptr );
-  }
+  _Thread_Exit( executing, THREAD_LIFE_TERMINATING, value_ptr );
 
   _Thread_Dispatch_enable( cpu_self );
-}
-
-void pthread_exit(
-  void  *value_ptr
-)
-{
-  _POSIX_Thread_Exit( _Thread_Get_executing(), value_ptr );
   RTEMS_UNREACHABLE();
 }