cleanup and streamlining of thread create/exit in ndb

ndb/include/portlib/NdbThread.h

@@ -76,7 +76,7 @@ int NdbThread_WaitFor(struct NdbThread* p_wait_thread, void** status);
  *   
  * *  status: exit code
  */
-void NdbThread_Exit(int status);
+void NdbThread_Exit(void *status);
 
 /**
  * Set thread concurrency level

ndb/src/common/portlib/NdbPortLibTest.cpp

@@ -54,10 +54,7 @@ extern "C"  void* thread1func(void* arg)
   if (arg1 != 7)
     fail("TEST1", "Wrong arg");
 
-  NdbThread_Exit(returnvalue);
-
-  return NULL;
-  
+  return returnvalue;
 }
 
 // test 2 variables and funcs
@@ -80,10 +77,7 @@ extern "C" void* test2func(void* arg)
     fail("TEST2", "Failed to unlock mutex");
 
   int returnvalue = arg1;
-  NdbThread_Exit(returnvalue);
-
-  return NULL;
-  
+  return returnvalue;
 }
 
 
@@ -129,8 +123,7 @@ extern "C" void* testfunc(void* arg)
     }
   while(tmpVar<100);
   
-  NdbThread_Exit(0);
-  return NULL;
+  return 0;
 }
 
 extern "C" void* testTryLockfunc(void* arg)
@@ -169,8 +162,7 @@ extern "C" void* testTryLockfunc(void* arg)
     }
   while(tmpVar<100);
   
-  NdbThread_Exit(0);
-  return NULL;
+  return 0;
 }
 
 

ndb/src/common/portlib/NdbThread.c

@@ -17,7 +17,7 @@
 
 #include <ndb_global.h>
 #include <NdbThread.h>
-#include <pthread.h>
+#include <my_pthread.h>
 #include <NdbMem.h>
 
 #define MAX_THREAD_NAME 16
@@ -39,8 +39,8 @@ struct NdbThread
 static
 void*
 ndb_thread_wrapper(void* _ss){
-  void * ret;
-  struct NdbThread * ss = (struct NdbThread *)_ss;
+  my_thread_init();
+  {
     DBUG_ENTER("ndb_thread_wrapper");
 #ifdef NDB_SHM_TRANSPORTER
     if (g_ndb_shm_signum)
@@ -52,8 +52,16 @@ ndb_thread_wrapper(void* _ss){
       pthread_sigmask(SIG_BLOCK, &mask, 0);
     }
 #endif
+    {
+      void *ret;
+      struct NdbThread * ss = (struct NdbThread *)_ss;
       ret= (* ss->func)(ss->object);
-  DBUG_RETURN(ret);
+      my_thread_end();
+      NdbThread_Exit(ret);
+    }
+  /* will never be reached */
+    DBUG_RETURN(0);
+  }
 }
 
 
@@ -130,9 +138,9 @@ int NdbThread_WaitFor(struct NdbThread* p_wait_thread, void** status)
 }
 
 
-void NdbThread_Exit(int status)
+void NdbThread_Exit(void *status)
 {
-  pthread_exit(&status);
+  pthread_exit(status);
 }
 
 

ndb/src/common/transporter/TransporterRegistry.cpp

@@ -1104,11 +1104,8 @@ TransporterRegistry::setIOState(NodeId nodeId, IOState state) {
 static void * 
 run_start_clients_C(void * me)
 {
-  my_thread_init();
   ((TransporterRegistry*) me)->start_clients_thread();
-  my_thread_end();
-  NdbThread_Exit(0);
-  return me;
+  return 0;
 }
 
 // Run by kernel thread

ndb/src/common/util/SocketServer.cpp

@@ -186,11 +186,7 @@ extern "C"
 void* 
 socketServerThread_C(void* _ss){
   SocketServer * ss = (SocketServer *)_ss;
-  
-  my_thread_init();
   ss->doRun();
-  my_thread_end();  
-  NdbThread_Exit(0);
   return 0;
 }
 
@@ -309,11 +305,8 @@ void*
 sessionThread_C(void* _sc){
   SocketServer::Session * si = (SocketServer::Session *)_sc;
 
-  my_thread_init();
   if(!transfer(si->m_socket)){
     si->m_stopped = true;
-    my_thread_end();
-    NdbThread_Exit(0);
     return 0;
   }
   
@@ -325,8 +318,6 @@ sessionThread_C(void* _sc){
   }
   
   si->m_stopped = true;
-  my_thread_end();
-  NdbThread_Exit(0);
   return 0;
 }
 

ndb/src/kernel/blocks/ndbfs/AsyncFile.cpp

@@ -82,7 +82,6 @@ static int numAsyncFiles = 0;
 
 extern "C" void * runAsyncFile(void* arg)
 {
-  my_thread_init();
   ((AsyncFile*)arg)->run();
   return (NULL);
 }
@@ -876,8 +875,6 @@ void AsyncFile::endReq()
 {
   // Thread is ended with return
   if (theWriteBuffer) NdbMem_Free(theWriteBuffer);
-  my_thread_end();
-  NdbThread_Exit(0);
 }
 
 

ndb/src/kernel/blocks/ndbfs/MemoryChannelTest/MemoryChannelTest.cpp

@@ -40,7 +40,6 @@ extern "C" void* runProducer(void*arg)
         NdbSleep_MilliSleep(i);
       i++;
     }
-  NdbThread_Exit(0);
   return NULL;
 }
 
@@ -58,7 +57,6 @@ extern "C" void* runConsumer(void* arg)
       delete p;
       
     }
-  NdbThread_Exit(0);
   return NULL;
 }
 
@@ -92,7 +90,6 @@ extern "C" void* runProducer2(void*arg)
       NdbSleep_MilliSleep(i);
       i++;
     }
-  NdbThread_Exit(0);
   return NULL;
 }
 
@@ -111,7 +108,6 @@ extern "C" void* runConsumer2(void* arg)
       delete p;
     }
   ndbout << "Consumer2: " << count << " received" << endl;
-  NdbThread_Exit(0);
   return NULL;
 }
 

ndb/src/kernel/vm/WatchDog.cpp

@@ -27,10 +27,7 @@
 extern "C" 
 void* 
 runWatchDog(void* w){
-  my_thread_init();
   ((WatchDog*)w)->run();
-  my_thread_end();
-  NdbThread_Exit(0);
   return NULL;
 }
 

ndb/src/mgmclient/CommandInterpreter.cpp

@@ -457,8 +457,6 @@ event_thread_run(void* m)
 {
   NdbMgmHandle handle= *(NdbMgmHandle*)m;
 
-  my_thread_init();
-
   int filter[] = { 15, NDB_MGM_EVENT_CATEGORY_BACKUP, 0 };
   int fd = ndb_mgm_listen_event(handle, filter);
   if (fd > 0)
@@ -478,9 +476,7 @@ event_thread_run(void* m)
     do_event_thread= -1;
   }
 
-  my_thread_end();
-  NdbThread_Exit(0);
-  return 0;
+  return NULL;
 }
 
 bool

ndb/src/mgmsrv/MgmtSrvr.cpp

@@ -70,12 +70,7 @@ void *
 MgmtSrvr::logLevelThread_C(void* m)
 {
   MgmtSrvr *mgm = (MgmtSrvr*)m;
-  my_thread_init();
   mgm->logLevelThreadRun();
-  
-  my_thread_end();
-  NdbThread_Exit(0);
-  /* NOTREACHED */
   return 0;
 }
 
@@ -83,12 +78,7 @@ void *
 MgmtSrvr::signalRecvThread_C(void *m) 
 {
   MgmtSrvr *mgm = (MgmtSrvr*)m;
-  my_thread_init();
   mgm->signalRecvThreadRun();
-
-  my_thread_end();
-  NdbThread_Exit(0);
-  /* NOTREACHED */
   return 0;
 }
 

ndb/src/ndbapi/ClusterMgr.cpp

@@ -54,7 +54,6 @@ runClusterMgr_C(void * me)
 #ifdef NDB_OSE
   NdbSleep_MilliSleep(50);
 #endif
-  NdbThread_Exit(0); 
   return NULL;
 }
 
@@ -560,10 +559,7 @@ extern "C"
 void*
 runArbitMgr_C(void* me)
 {
-  my_thread_init();
   ((ArbitMgr*) me)->threadMain();
-  my_thread_end();
-  NdbThread_Exit(0); 
   return NULL;
 }
 

ndb/src/ndbapi/TransporterFacade.cpp

@@ -405,11 +405,8 @@ extern "C"
 void* 
 runSendRequest_C(void * me)
 {
-  my_thread_init();
   ((TransporterFacade*) me)->threadMainSend();
-  my_thread_end();
-  NdbThread_Exit(0);
-  return me;
+  return 0;
 }
 
 void TransporterFacade::threadMainSend(void)
@@ -443,11 +440,8 @@ extern "C"
 void* 
 runReceiveResponse_C(void * me)
 {
-  my_thread_init();
   ((TransporterFacade*) me)->threadMainReceive();
-  my_thread_end();
-  NdbThread_Exit(0);
-  return me;
+  return 0;
 }
 
 void TransporterFacade::threadMainReceive(void)

ndb/src/ndbapi/ndb_cluster_connection.cpp

@@ -87,11 +87,8 @@ const char *Ndb_cluster_connection::get_connectstring(char *buf,
 
 extern "C" pthread_handler_decl(run_ndb_cluster_connection_connect_thread, me)
 {
-  my_thread_init();
   g_run_connect_thread= 1;
   ((Ndb_cluster_connection_impl*) me)->connect_thread();
-  my_thread_end();
-  NdbThread_Exit(0);
   return me;
 }
 

ndb/test/ndbapi/benchronja.cpp

@@ -984,7 +984,6 @@ void* ThreadExec(void* ThreadData){
 		delete pMyNdb;
 		pMyNdb = NULL ;
 		ThreadReady[thread_no] = 1;
-		NdbThread_Exit(0) ;
 		return 0 ;
     }//if
 
@@ -1197,7 +1196,6 @@ void* ThreadExec(void* ThreadData){
   } // for(;;)
   
   delete pMyNdb ;
-  NdbThread_Exit(0) ;
-  return 0 ; // Compiler is happy now
+  return 0 ;
 }
 

ndb/test/ndbapi/flexAsynch.cpp

@@ -494,8 +494,7 @@ threadLoop(void* ThreadData)
   delete localNdb;
   ThreadReady[threadNo] = 1;
 
-  NdbThread_Exit(0);
-  return NULL; // Just to keep compiler happy
+  return NULL;
 }//threadLoop()
 
 static 

ndb/test/ndbapi/flexBench.cpp

@@ -617,7 +617,7 @@ static void* flexBenchThread(void* pArg)
     free(attrRefValue) ;
     free(pOps) ;
     delete pNdb ;
-    NdbThread_Exit(0) ;
+    return 0; // thread exits
   }
   
   pNdb->init();
@@ -934,8 +934,7 @@ static void* flexBenchThread(void* pArg)
     free(longKeyAttrValue);
   } // if
 
-  NdbThread_Exit(0);
-  return NULL; // Just to keep compiler happy
+  return NULL; // Thread exits
 }
 
 

ndb/test/ndbapi/flexHammer.cpp

@@ -612,10 +612,7 @@ flexHammerThread(void* pArg)
 
   flexHammerErrorData->resetErrorCounters();
 
-  // And exit using NDBT
-  NdbThread_Exit(0);
-
-  return  NULL;
+  return  NULL; // thread exits
   
 } // flexHammerThread
 

ndb/test/ndbapi/flexScan.cpp

@@ -701,8 +701,7 @@ flexScanThread(void* ThreadData)
     free(pkValue);
   } // if
   
-  NdbThread_Exit(0);
-  return NULL;
+  return NULL; // thread exits
 
 } // flexScanThread
 

ndb/test/ndbapi/flexTT.cpp

@@ -389,8 +389,7 @@ threadLoop(void* ThreadData)
   delete localNdb;
   ThreadReady[loc_threadNo] = 1;
 
-  NdbThread_Exit(0);
-  return NULL; // Just to keep compiler happy
+  return NULL; // Thread exits
 }//threadLoop()
 
 static 

ndb/test/ndbapi/flexTimedAsynch.cpp

@@ -406,9 +406,8 @@ threadLoop(void* ThreadData)
 
   delete localNdb;
   ThreadReady[threadNo] = 1;
-  NdbThread_Exit(0);
 
-  return NULL;
+  return NULL; // thread exits
 }
 
 void executeThread(StartType aType, Ndb* aNdbObject, ThreadNdb* threadInfo)

ndb/test/ndbapi/flex_bench_mysql.cpp

@@ -710,7 +710,7 @@ static void* flexBenchThread(void* pArg)
 			    the_socket_name,
 			    0) == NULL ) {
       ndbout << "failed" << endl;
-      NdbThread_Exit(0) ;
+      return 0;
     }
     ndbout << "ok" << endl;
 
@@ -722,7 +722,7 @@ static void* flexBenchThread(void* pArg)
 
     if (r) {
       ndbout << "autocommit on/off failed" << endl;
-      NdbThread_Exit(0) ;
+      return 0;
     }
   }
 #endif
@@ -741,7 +741,7 @@ static void* flexBenchThread(void* pArg)
     ndbout << threadNo << endl ;
     ndbout << "Thread #" << threadNo << " will now exit" << endl ;
     tResult = 13 ;
-    NdbThread_Exit(0) ;
+    return 0;
   }
   
   if (use_ndb) {
@@ -750,7 +750,7 @@ static void* flexBenchThread(void* pArg)
       ndbout << "Failed to get an NDB object" << endl;
       ndbout << "Thread #" << threadNo << " will now exit" << endl ;
       tResult = 13;
-      NdbThread_Exit(0) ;
+      return 0;
     }
     pNdb->waitUntilReady();
     return_ndb_object(pNdb, ndb_id);
@@ -900,11 +900,11 @@ static void* flexBenchThread(void* pArg)
       prep_insert[i] = mysql_prepare(&mysql, buf, pos);
       if (prep_insert[i] == 0) {
 	ndbout << "mysql_prepare: " << mysql_error(&mysql) << endl;
-	NdbThread_Exit(0) ;
+	return 0;
       }
       if (mysql_bind_param(prep_insert[i], bind_insert)) {
 	ndbout << "mysql_bind_param: " << mysql_error(&mysql) << endl;
-	NdbThread_Exit(0) ;
+	return 0;
       }
     }
     
@@ -926,11 +926,11 @@ static void* flexBenchThread(void* pArg)
       prep_update[i] = mysql_prepare(&mysql, buf, pos);
       if (prep_update[i] == 0) {
 	ndbout << "mysql_prepare: " << mysql_error(&mysql) << endl;
-	NdbThread_Exit(0) ;
+	return 0;
       }
       if (mysql_bind_param(prep_update[i], bind_update)) {
 	ndbout << "mysql_bind_param: " << mysql_error(&mysql) << endl;
-	NdbThread_Exit(0) ;
+	return 0;
       }
     }
     
@@ -953,15 +953,15 @@ static void* flexBenchThread(void* pArg)
       prep_read[i] = mysql_prepare(&mysql, buf, pos);
       if (prep_read[i] == 0) {
 	ndbout << "mysql_prepare: " << mysql_error(&mysql) << endl;
-	NdbThread_Exit(0) ;
+	return 0;
       }
       if (mysql_bind_param(prep_read[i], bind_read)) {
 	ndbout << "mysql_bind_param: " << mysql_error(&mysql) << endl;
-	NdbThread_Exit(0) ;
+	return 0;
       }
       if (mysql_bind_result(prep_read[i], &bind_read[1])) {
 	ndbout << "mysql_bind_result: " << mysql_error(&mysql) << endl;
-	NdbThread_Exit(0) ;
+	return 0;
       }
     }
     
@@ -978,11 +978,11 @@ static void* flexBenchThread(void* pArg)
       prep_delete[i] = mysql_prepare(&mysql, buf, pos);
       if (prep_delete[i] == 0) {
 	ndbout << "mysql_prepare: " << mysql_error(&mysql) << endl;
-	NdbThread_Exit(0) ;
+	return 0;
       }
       if (mysql_bind_param(prep_delete[i], bind_delete)) {
 	ndbout << "mysql_bind_param: " << mysql_error(&mysql) << endl;
-	NdbThread_Exit(0) ;
+	return 0;
       }
     }
   }
@@ -1431,8 +1431,7 @@ static void* flexBenchThread(void* pArg)
     ndbout << "I got here " << endl;
     return_ndb_object(pNdb, ndb_id);
   }
-  NdbThread_Exit(0);
-  return NULL; // Just to keep compiler happy
+  return NULL;
 }
 
 

ndb/test/ndbapi/mainAsyncGenerator.cpp

@@ -274,8 +274,6 @@ threadRoutine(void *arg)
 
   asyncDbDisconnect(pNDB);
 
-  NdbThread_Exit(0);
-
   return NULL;
 }
 

ndb/test/src/NDBT_Test.cpp

@@ -475,7 +475,6 @@ void *
 runStep_C(void * s)
 {
   runStep(s);
-  NdbThread_Exit(0);
   return NULL;
 }
 

ndb/test/tools/transproxy.cpp

@@ -291,7 +291,6 @@ extern "C" void*
 copyrun_C(void* copy)
 {
     ((Copy*) copy)->run();
-    NdbThread_Exit(0);
     return 0;
 }
 
@@ -322,7 +321,6 @@ extern "C" void*
 connrun_C(void* conn)
 {
     ((Conn*) conn)->run();
-    NdbThread_Exit(0);
     return 0;
 }