Merge remote-tracking branch 'origin/released'

* origin/released:
  Updated to latest CVS version of pthreads

Conflicts:
	pthreads/Makefile

1 files changed, 173 insertions, 0 deletions

diff --git a/pthreads/pthread_tryjoin_np.c b/pthreads/pthread_tryjoin_np.c
new file mode 100755
index 000000000..e9fe1dae6
--- /dev/null
+++ b/pthreads/pthread_tryjoin_np.c
@@ -0,0 +1,173 @@
+/*

+ * pthread_tryjoin_np.c

+ *

+ * Description:

+ * This translation unit implements functions related to thread

+ * synchronisation.

+ *

+ * --------------------------------------------------------------------------

+ *

+ *      Pthreads-win32 - POSIX Threads Library for Win32

+ *      Copyright(C) 1998 John E. Bossom

+ *      Copyright(C) 1999,2012 Pthreads-win32 contributors

+ *

+ *      Homepage1: http://sourceware.org/pthreads-win32/

+ *      Homepage2: http://sourceforge.net/projects/pthreads4w/

+ *

+ *      The current list of contributors is contained

+ *      in the file CONTRIBUTORS included with the source

+ *      code distribution. The list can also be seen at the

+ *      following World Wide Web location:

+ *      http://sources.redhat.com/pthreads-win32/contributors.html

+ *

+ *      This library is free software; you can redistribute it and/or

+ *      modify it under the terms of the GNU Lesser General Public

+ *      License as published by the Free Software Foundation; either

+ *      version 2 of the License, or (at your option) any later version.

+ *

+ *      This library is distributed in the hope that it will be useful,

+ *      but WITHOUT ANY WARRANTY; without even the implied warranty of

+ *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

+ *      Lesser General Public License for more details.

+ *

+ *      You should have received a copy of the GNU Lesser General Public

+ *      License along with this library in the file COPYING.LIB;

+ *      if not, write to the Free Software Foundation, Inc.,

+ *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

+ */

+

+#ifdef HAVE_CONFIG_H

+# include <config.h>

+#endif

+

+#include "pthread.h"

+#include "implement.h"

+

+/*

+ * Not needed yet, but defining it should indicate clashes with build target

+ * environment that should be fixed.

+ */

+#if !defined(WINCE)

+#  include <signal.h>

+#endif

+

+

+int

+pthread_tryjoin_np (pthread_t thread, void **value_ptr)

+     /*

+      * ------------------------------------------------------

+      * DOCPUBLIC

+      *      This function checks if 'thread' has terminated and

+      *      returns the thread's exit value if 'value_ptr' is not

+      *      NULL or until 'abstime' passes and returns an

+      *      error. If the thread has not exited the function returns

+      *      immediately. This function detaches the thread on successful

+      *      completion.

+      *

+      * PARAMETERS

+      *      thread

+      *              an instance of pthread_t

+      *

+      *      value_ptr

+      *              pointer to an instance of pointer to void

+      *

+      *

+      * DESCRIPTION

+      *      This function checks if 'thread' has terminated and

+      *      returns the thread's exit value if 'value_ptr' is not

+      *      NULL or until 'abstime' passes and returns an

+      *      error. If the thread has not exited the function returns

+      *      immediately. This function detaches the thread on successful

+      *      completion.

+      *      NOTE:   Detached threads cannot be joined or canceled.

+      *              In this implementation 'abstime' will be

+      *              resolved to the nearest millisecond.

+      *

+      * RESULTS

+      *              0               'thread' has completed

+      *              EBUSY           'thread' is still live

+      *              EINVAL          thread is not a joinable thread,

+      *              ESRCH           no thread could be found with ID 'thread',

+      *              ENOENT          thread couldn't find it's own valid handle,

+      *              EDEADLK         attempt to join thread with self

+      *

+      * ------------------------------------------------------

+      */

+{

+  int result;

+  pthread_t self;

+  ptw32_thread_t * tp = (ptw32_thread_t *) thread.p;

+  ptw32_mcs_local_node_t node;

+

+  ptw32_mcs_lock_acquire(&ptw32_thread_reuse_lock, &node);

+

+  if (NULL == tp

+      || thread.x != tp->ptHandle.x)

+    {

+      result = ESRCH;

+    }

+  else if (PTHREAD_CREATE_DETACHED == tp->detachState)

+    {

+      result = EINVAL;

+    }

+  else

+    {

+      result = 0;

+    }

+

+  ptw32_mcs_lock_release(&node);

+

+  if (result == 0)

+    {

+      /*

+       * The target thread is joinable and can't be reused before we join it.

+       */

+      self = pthread_self();

+

+      if (NULL == self.p)

+        {

+          result = ENOENT;

+        }

+      else if (pthread_equal (self, thread))

+        {

+          result = EDEADLK;

+        }

+      else

+        {

+          /*

+           * Pthread_join is a cancellation point.

+           * If we are canceled then our target thread must not be

+           * detached (destroyed). This is guaranteed because

+           * pthreadCancelableTimedWait will not return if we

+           * are canceled.

+           */

+          result = pthreadCancelableTimedWait (tp->threadH, 0);

+

+          if (0 == result)

+            {

+              if (value_ptr != NULL)

+                {

+                  *value_ptr = tp->exitStatus;

+                }

+

+              /*

+               * The result of making multiple simultaneous calls to

+               * pthread_join(), pthread_timedjoin_np(), pthread_tryjoin_np()

+               * or pthread_detach() specifying the same target is undefined.

+               */

+              result = pthread_detach (thread);

+            }

+          else if (ETIMEDOUT == result)

+            {

+              result = EBUSY;

+            }

+          else

+            {

+        	  result = ESRCH;

+            }

+        }

+    }

+

+  return (result);

+

+}