native_client_sdk/src/libraries/third_party/pthreads-win32/ptw32_threadDestroy.c

   1 /*
   2  * ptw32_threadDestroy.c
   3  *
   4  * Description:
   5  * This translation unit implements routines which are private to
   6  * the implementation and may be used throughout it.
   7  *
   8  * --------------------------------------------------------------------------
   9  *
  10  *      Pthreads-win32 - POSIX Threads Library for Win32
  11  *      Copyright(C) 1998 John E. Bossom
  12  *      Copyright(C) 1999,2005 Pthreads-win32 contributors
  13  *
  14  *      Contact Email: rpj@callisto.canberra.edu.au
  15  *
  16  *      The current list of contributors is contained
  17  *      in the file CONTRIBUTORS included with the source
  18  *      code distribution. The list can also be seen at the
  19  *      following World Wide Web location:
  20  *      http://sources.redhat.com/pthreads-win32/contributors.html
  21  *
  22  *      This library is free software; you can redistribute it and/or
  23  *      modify it under the terms of the GNU Lesser General Public
  24  *      License as published by the Free Software Foundation; either
  25  *      version 2 of the License, or (at your option) any later version.
  26  *
  27  *      This library is distributed in the hope that it will be useful,
  28  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  29  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  30  *      Lesser General Public License for more details.
  31  *
  32  *      You should have received a copy of the GNU Lesser General Public
  33  *      License along with this library in the file COPYING.LIB;
  34  *      if not, write to the Free Software Foundation, Inc.,
  35  *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  36  */
  37
  38 #include "pthread.h"
  39 #include "implement.h"
  40
  41
  42 void
  43 ptw32_threadDestroy (pthread_t thread)
  44 {
  45   ptw32_thread_t * tp = (ptw32_thread_t *) thread.p;
  46   ptw32_thread_t threadCopy;
  47
  48   if (tp != NULL)
  49     {
  50       /*
  51        * Copy thread state so that the thread can be atomically NULLed.
  52        */
  53       memcpy (&threadCopy, tp, sizeof (threadCopy));
  54
  55       /*
  56        * Thread ID structs are never freed. They're NULLed and reused.
  57        * This also sets the thread to PThreadStateInitial (invalid).
  58        */
  59       ptw32_threadReusePush (thread);
  60
  61       /* Now work on the copy. */
  62       if (threadCopy.cancelEvent != NULL)
  63         {
  64           CloseHandle (threadCopy.cancelEvent);
  65         }
  66
  67 #if ! (defined(__MINGW64__) || defined(__MINGW32__)) || defined (__MSVCRT__) || defined (__DMC__)
  68       /*
  69        * See documentation for endthread vs endthreadex.
  70        */
  71       if (threadCopy.threadH != 0)
  72         {
  73           CloseHandle (threadCopy.threadH);
  74         }
  75 #endif
  76
  77     }
  78 }                               /* ptw32_threadDestroy */
  79