From 2ab3d99967d68c79351fe2a3df22c445447e3010 Mon Sep 17 00:00:00 2001
From: Michał Cichoń <michcic@gmail.com>
Date: Tue, 15 Nov 2011 22:28:48 +0100
Subject: Initial import.

---
 pthreads/src/pthread_setspecific.c | 167 +++++++++++++++++++++++++++++++++++++
 1 file changed, 167 insertions(+)
 create mode 100644 pthreads/src/pthread_setspecific.c

(limited to 'pthreads/src/pthread_setspecific.c')

diff --git a/pthreads/src/pthread_setspecific.c b/pthreads/src/pthread_setspecific.c
new file mode 100644
index 0000000..0f29e70
--- /dev/null
+++ b/pthreads/src/pthread_setspecific.c
@@ -0,0 +1,167 @@
+/*
+ * pthread_setspecific.c
+ *
+ * Description:
+ * POSIX thread functions which implement thread-specific data (TSD).
+ *
+ * --------------------------------------------------------------------------
+ *
+ *      Pthreads-win32 - POSIX Threads Library for Win32
+ *      Copyright(C) 1998 John E. Bossom
+ *      Copyright(C) 1999,2005 Pthreads-win32 contributors
+ * 
+ *      Contact Email: rpj@callisto.canberra.edu.au
+ * 
+ *      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
+ */
+
+#include "pthread.h"
+#include "implement.h"
+
+
+int
+pthread_setspecific (pthread_key_t key, const void *value)
+     /*
+      * ------------------------------------------------------
+      * DOCPUBLIC
+      *      This function sets the value of the thread specific
+      *      key in the calling thread.
+      *
+      * PARAMETERS
+      *      key
+      *              an instance of pthread_key_t
+      *      value
+      *              the value to set key to
+      *
+      *
+      * DESCRIPTION
+      *      This function sets the value of the thread specific
+      *      key in the calling thread.
+      *
+      * RESULTS
+      *              0               successfully set value
+      *              EAGAIN          could not set value
+      *              ENOENT          SERIOUS!!
+      *
+      * ------------------------------------------------------
+      */
+{
+  pthread_t self;
+  int result = 0;
+
+  if (key != ptw32_selfThreadKey)
+    {
+      /*
+       * Using pthread_self will implicitly create
+       * an instance of pthread_t for the current
+       * thread if one wasn't explicitly created
+       */
+      self = pthread_self ();
+      if (self.p == NULL)
+	{
+	  return ENOENT;
+	}
+    }
+  else
+    {
+      /*
+       * Resolve catch-22 of registering thread with selfThread
+       * key
+       */
+      ptw32_thread_t * sp = (ptw32_thread_t *) pthread_getspecific (ptw32_selfThreadKey);
+
+      if (sp == NULL)
+        {
+	  if (value == NULL)
+	    {
+	      return ENOENT;
+	    }
+          self = *((pthread_t *) value);
+        }
+      else
+        {
+	  self = sp->ptHandle;
+        }
+    }
+
+  result = 0;
+
+  if (key != NULL)
+    {
+      if (self.p != NULL && key->destructor != NULL && value != NULL)
+	{
+          ptw32_mcs_local_node_t keyLock;
+          ptw32_mcs_local_node_t threadLock;
+	  ptw32_thread_t * sp = (ptw32_thread_t *) self.p;
+	  /*
+	   * Only require associations if we have to
+	   * call user destroy routine.
+	   * Don't need to locate an existing association
+	   * when setting data to NULL for WIN32 since the
+	   * data is stored with the operating system; not
+	   * on the association; setting assoc to NULL short
+	   * circuits the search.
+	   */
+	  ThreadKeyAssoc *assoc;
+
+	  ptw32_mcs_lock_acquire(&(key->keyLock), &keyLock);
+	  ptw32_mcs_lock_acquire(&(sp->threadLock), &threadLock);
+
+	  assoc = (ThreadKeyAssoc *) sp->keys;
+	  /*
+	   * Locate existing association
+	   */
+	  while (assoc != NULL)
+	    {
+	      if (assoc->key == key)
+		{
+		  /*
+		   * Association already exists
+		   */
+		  break;
+		}
+		assoc = assoc->nextKey;
+	    }
+
+	  /*
+	   * create an association if not found
+	   */
+	  if (assoc == NULL)
+	    {
+	      result = ptw32_tkAssocCreate (sp, key);
+	    }
+
+	  ptw32_mcs_lock_release(&threadLock);
+	  ptw32_mcs_lock_release(&keyLock);
+	}
+
+      if (result == 0)
+	{
+	  if (!TlsSetValue (key->key, (LPVOID) value))
+	    {
+	      result = EAGAIN;
+	    }
+	}
+    }
+
+  return (result);
+}				/* pthread_setspecific */
-- 
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