CAThread.cpp

Go to the documentation of this file.

/*
Copyright (c) 2000, The JAP-Team 
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, 
are permitted provided that the following conditions are met:

  - Redistributions of source code must retain the above copyright notice, 
    this list of conditions and the following disclaimer.

  - Redistributions in binary form must reproduce the above copyright notice, 
    this list of conditions and the following disclaimer in the documentation and/or 
    other materials provided with the distribution.

  - Neither the name of the University of Technology Dresden, Germany nor the names of its contributors 
    may be used to endorse or promote products derived from this software without specific 
    prior written permission. 

  
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS 
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 
OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 
IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
*/
#include "StdAfx.h"
#ifndef ONLY_LOCAL_PROXY
#include "CAThread.hpp"
#include "CAUtil.hpp"
#include "CAMsg.hpp"
#ifdef _DEBUG
#include "CAThreadList.hpp"
#endif

#ifdef OS_TUDOS
  const int l4thread_max_threads = 64;
#endif

#ifdef PRINT_THREAD_STACK_TRACE 
  pthread_once_t CAThread::ms_threadKeyInit = PTHREAD_ONCE_INIT;
  pthread_key_t CAThread::ms_threadKey; 
  const char* CAThread::METHOD_BEGIN = "Begin of method";
  const char* CAThread::METHOD_END = "End of method";
#endif

#if defined (DEBUG) && ! defined(ONLY_LOCAL_PROXY)
  CAThreadList* CAThread::m_pThreadList=NULL;
#endif

UINT32 CAThread::ms_LastId=0;

CAThread::CAThread()
  {
    m_fncMainLoop=NULL;
#ifdef OS_TUDOS
    m_Thread=L4THREAD_INVALID_ID;
#ifdef PRINT_THREAD_STACK_TRACE 
    assert(ms_threadKey != L4_ENOKEY);
#endif //PRINT_THREAD_STACK_TRACE 
#else
    m_pThread=NULL;
#endif
    m_strName=NULL;
    m_Id=ms_LastId;
    ms_LastId++;
  }

CAThread::CAThread(const UINT8* strName)
  {
    m_fncMainLoop=NULL;
#ifdef OS_TUDOS
    m_Thread=L4THREAD_INVALID_ID;
#else
    m_pThread=NULL;
#endif
    m_strName=NULL;
    if(strName!=NULL)
      {
        UINT32 len=strlen((char*)strName);
        m_strName=new UINT8[len+1];
        memcpy(m_strName,strName,len);
        m_strName[len]=0;
      }
    m_Id=ms_LastId;
    ms_LastId++;
  }
#ifdef PRINT_THREAD_STACK_TRACE 
void CAThread::destroyValue(void* a_value) 
{ 
  delete a_value;
  a_value = NULL; 
}

void CAThread::initKey() 
{ 
  pthread_key_create(&ms_threadKey, destroyValue); 
}

void CAThread::setCurrentStack(METHOD_STACK* a_value)
{
  pthread_once(&ms_threadKeyInit, initKey); 
  void *value = pthread_getspecific(ms_threadKey); 

  delete value;
  value = a_value; 
  pthread_setspecific(ms_threadKey, value); 
}

CAThread::METHOD_STACK* CAThread::getCurrentStack()
{
  pthread_once(&ms_threadKeyInit, initKey); 
  return (METHOD_STACK*)pthread_getspecific(ms_threadKey); 
}
#endif

SINT32 CAThread::start(void* param,bool bDaemon,bool bSilent)
  {
    if(m_fncMainLoop==NULL)
      return E_UNKNOWN;

#ifndef OS_TUDOS
    m_pThread=new pthread_t;
#endif

    #ifdef DEBUG
      if(!bSilent)
        CAMsg::printMsg(LOG_DEBUG, "CAThread::start() - creating thread\n");
    #endif

#ifdef OS_TUDOS
    if ((m_Thread = l4thread_create(m_fncMainLoop, param, L4THREAD_CREATE_ASYNC)) < 1)
      {
        m_Thread = L4THREAD_INVALID_ID;
        if(!bSilent)
          CAMsg::printMsg(LOG_ERR, "CAThread::start() - creating new thread failed!\n");
        return E_UNKNOWN;
      }
#else
    SINT32 ret=pthread_create(m_pThread,NULL,m_fncMainLoop,param);
    if(ret!=0)
      {
        if(!bSilent)
          CAMsg::printMsg(LOG_ERR, "CAThread::start() - creating new thread failed! - Err: %i\n",ret);
        delete m_pThread;
        m_pThread=NULL;
        return E_UNKNOWN;
      }
    #endif
#ifdef _DEBUG
    if(m_pThreadList != NULL)
    {
      m_pThreadList->put(this);
    }

    else
    {
      CAMsg::printMsg(LOG_DEBUG, "CAThread::start() - Warning no thread list found\n");
    }
#endif
#ifdef DEBUG
    if(!bSilent)
        CAMsg::printMsg(LOG_DEBUG, "CAThread::start() - thread created sucessful\n");
#endif

    #ifdef OS_TUDOS

    if(m_strName!=NULL&&!bSilent)
      CAMsg::printMsg(LOG_DEBUG,
        "Thread with name: %s created - pthread_t: "l4util_idfmt"\n",
         m_strName, l4util_idstr(l4thread_l4_id(m_Thread)));

    if(bDaemon)
      CAMsg::printMsg(LOG_ERR, "TODO: Emulate pthread_detach on L4 ?!\n");
    #else
    if(m_strName!=NULL&&!bSilent)
      {
        UINT8* temp=bytes2hex(m_pThread,sizeof(pthread_t));
        CAMsg::printMsg(LOG_DEBUG,"Thread with name: %s created - pthread_t: %s\n",m_strName,temp);
        delete[] temp;
        temp = NULL;
      }
    if(bDaemon)
      pthread_detach(*m_pThread);
#endif
    return E_SUCCESS;
  }

SINT32 CAThread::join()
{
#ifdef OS_TUDOS
  CAMsg::printMsg(LOG_ERR,"CAThread - join() L4 implement me !\n");
  if(m_Thread==L4THREAD_INVALID_ID)
    return E_SUCCESS;
  
  return E_UNKNOWN;
#else
  if(m_pThread==NULL)
    return E_SUCCESS;
  SINT32 ret=pthread_join(*m_pThread,NULL);
  if(ret==0)
  {
#ifdef DEBUG
      CAMsg::printMsg(LOG_DEBUG,"CAThread %s - join() successful\n", m_strName);
      m_pThreadList->remove(this);
#endif  
        
    delete m_pThread;
    m_pThread=NULL;
    return E_SUCCESS;
  }
  else
  {
    CAMsg::printMsg(LOG_ERR,"CAThread - join() not successful - Error was: %i\n",ret);
    return E_UNKNOWN;
  }
#endif
}
#endif //ONLY_LOCAL_PROXY