genericopenlibs/openenvcore/libpthread/src/pthread_exit.cpp
changeset 0 e4d67989cc36
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/genericopenlibs/openenvcore/libpthread/src/pthread_exit.cpp	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,136 @@
+// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// Name     : pthread_exit.cpp
+// Part of  : PThread library
+// pthread_exit call is implemented.
+// Version:
+//
+
+
+
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <e32base.h>
+#include "threadglobals.h"
+#include "pthreadmisc.h"
+
+#define THREAD_COUNT_ONE 1
+
+
+EXPORT_C void pthread_exit(void *retValPtr)
+{
+    _global_data_t *glbPtr;
+    _pthread_node_t *tempPtr;
+    _pthread_node_t *selfNodePtr;
+        
+    THR_PRINTF("[pthread] Begin pthread_exit\n");
+    
+    //Get the TLS value (self node pointer)
+    selfNodePtr = (_pthread_node_t*) _pthread_getTls();
+    //coverity[var_compare_op]
+    if (NULL == selfNodePtr)    // This should never happen
+    {
+        THR_PRINTF("[pthread] FATAL :TLS is not initialized \n");
+        THR_PRINTF("[pthread] Terminating the process\n");
+        RProcess rp;
+        rp.Kill(0);                // Terminate the process
+    }
+
+    //coverity[var_deref_op]
+    if (_MAIN_THREAD == selfNodePtr->mainFlag)
+    {
+    	// Make the main thread non critical, so that the process does not 
+    	// terminate, after main exits with pthread_exit()
+    	User::SetCritical(User::ENotCritical);
+    }
+    
+    glbPtr = selfNodePtr->glbDataPtr;  // point to global struct
+    
+    // Call destructors for TLS keys
+    _pthread_destroyKeys(glbPtr,selfNodePtr);
+    
+    glbPtr->lockThreadTable.Wait();    // Acquire the thread table lock
+    
+    // Traverse through the list, till destination node is reached
+    for (tempPtr = glbPtr->start; 
+         ((tempPtr != selfNodePtr) && (tempPtr != NULL)); 
+         tempPtr = tempPtr->next)
+    {
+        ;             // Empty loop 
+    }
+    
+    if (NULL == tempPtr)              // Not found; 
+    {
+        THR_PRINTF("[pthread] FATAL :thread node not found \n");
+        THR_PRINTF("[pthread] Terminating the process\n");
+        RProcess rp;
+        rp.Kill(0);                // Terminate the process
+    }
+    
+    selfNodePtr->lockNode.Wait(); // Acquire the node lock 
+
+    selfNodePtr->returnValue = retValPtr;  // Store the return val
+    
+    //added to solve memoryleak
+    CTrapCleanup* pCleanup = (CTrapCleanup*)selfNodePtr->cleanStackPtr; 
+    selfNodePtr->cleanStackPtr = NULL;    
+    
+    // Check the thread count and if it becoming zero then terminate process
+    --(glbPtr->threadCount); // Update the thread count
+    if (THREAD_COUNT_ZERO == glbPtr->threadCount)
+    {
+		THR_PRINTF("[pthread] Terminating the process\n");
+		// Terminate the process by calling exit(0)
+		exit(0);
+        /*
+		RProcess rp;
+        rp.Kill(0);*/
+
+        // Free the cleanup stack
+        delete pCleanup;
+    }
+
+    if (PTHREAD_CREATE_DETACHED == selfNodePtr->detachState)
+    {
+        // Delete the Node;
+        _pthread_deleteNode(selfNodePtr, glbPtr, NULL);
+        // It also unlocks the node aswell unlocks the thread table lock
+    }
+    else
+    {
+        selfNodePtr->threadState = _THREAD_ZOMBIE;
+        selfNodePtr->lockNode.Signal();    // Unlock the node
+        
+        glbPtr->lockThreadTable.Signal();  // release thread table lock
+    }
+    
+    // Free the cleanup stack
+    delete pCleanup;    
+    
+    //Terminate the current thread
+    THR_PRINTF("[pthread] Terminating the current thread\n");
+    /*
+    
+      "RThread.Kill  cannot be used to terminate the thread in question because the thread uses a shared heap and 
+     RThread.Kill  will cause the internal array used for thread-local storage(TLS) to be leaked only on specific ARM platforms
+     which implement the CP15 feature."
+     */
+    User::Exit(0);
+        
+
+}
+
+// End of file