C++ setHandle函数代码示例

int 
SockDgram::doStart()
{
	int ret = MW_SUCCESS;

	if(getOpMode() == OSAL::OPMODE_ASYNC)
	{
#ifdef OSAL_WIN32      
		OSAL_SOCKET os_sock_desc = this->getSD(_ACCEPT_USE_);
		setHandle(pSysEventProcessor_->createHandleRequest());
		OSAL_HANDLE os_handle = this->getHandle();
		WSAEventSelect(os_sock_desc, os_handle, FD_READ);
#else
		setHandle(this->getSD());
#endif
		//TODO: Who will deallocate this allocated memory?
		pSockAsyncOperation_ = new SockDgram_AsyncOpeartion(this);
		ret = registerAsyncOperation(DevType_, os_handle, pSockAsyncOperation_, os_sock_desc);
	}
	else
	{	
		//TODO: Who will deallocate this allocated memory?
		pSockSyncOperation_ = new SockDgram_SyncOpeartion(this);
		//TODO: When it comes to sync operation, its return handle shall be managed by concrete IO devices.
		//		so, I have to implement it.
		ret=registerSyncOperation(pSockSyncOperation_);

	}
	return ret;
}

 AbstractOverlappedEventNotifier(QSerialPortPrivate *d, Type type, bool manual, QObject *parent)
     : QWinEventNotifier(parent), dptr(d), t(type) {
     ::memset(&o, 0, sizeof(o));
     o.hEvent = ::CreateEvent(NULL, manual, FALSE, NULL);
     setHandle(o.hEvent);
     dptr->notifiers[o.hEvent] = this;
 }

BOOL USplashWindow::onTimer(WPARAM wParam, LPARAM lParam)
{
    killTimer(ID_SPLASH_TIMER);
    destroy();
    setHandle(NULL);
	return FALSE;
}

/*
 * Class:     org_dmlc_xgboost4j_wrapper_XgboostJNI
 * Method:    XGBoosterCreate
 * Signature: ([J)J
 */
JNIEXPORT jint JNICALL Java_org_dmlc_xgboost4j_wrapper_XgboostJNI_XGBoosterCreate
  (JNIEnv *jenv, jclass jcls, jlongArray jhandles, jlongArray jout) {
    DMatrixHandle* handles;
    bst_ulong len = 0;
    jlong* cjhandles = 0;
    BoosterHandle result;
    
    if(jhandles) {
        len = (bst_ulong)jenv->GetArrayLength(jhandles);
        handles = new DMatrixHandle[len];
        //put handle from jhandles to chandles
        cjhandles = jenv->GetLongArrayElements(jhandles, 0);
        for(bst_ulong i=0; i<len; i++) {
            handles[i] = (DMatrixHandle) cjhandles[i];
        }
    }
    
    int ret = XGBoosterCreate(handles, len, &result);    
    //release
    if(jhandles) {
        delete[] handles;
        jenv->ReleaseLongArrayElements(jhandles, cjhandles, 0);
    }
    setHandle(jenv, jout, result);
    
    return ret;
}

/*
 * Construct a new Java magick.MagickImage object and set the
 * handle.
 *
 * Input:
 *   env     Java VM environment
 *   image   ImageMagick image handle
 *
 * Return:
 *   A new instance of magick.MagickImage object.
 *
 */
jobject newImageObject(JNIEnv *env, Image* image)
{
    jclass magickImageClass = 0;
    jmethodID consMethodID = 0;
    jobject newObj;

    magickImageClass = (*env)->FindClass(env, "magick/MagickImage");
    if (magickImageClass == 0) {
	return NULL;
    }

    consMethodID = (*env)->GetMethodID(env, magickImageClass,
				       "<init>", "()V");
    if (consMethodID == 0) {
	return NULL;
    }

    newObj = (*env)->NewObject(env, magickImageClass, consMethodID);
    if (newObj == NULL) {
	return NULL;
    }

    if (!setHandle(env, newObj, "magickImageHandle", (void*) image, NULL)) {
#ifdef DIAGNOSTIC
	fprintf(stderr, "newImageObject: Unable to set handle\n");
#endif
	return NULL;
    }

    return newObj;
}

/*
 * Class:     magick_MontageInfo
 * Method:    init
 * Signature: (Lmagick/ImageInfo;)V
 */
JNIEXPORT void JNICALL Java_magick_MontageInfo_init
  (JNIEnv *env, jobject self, jobject imageInfo)
{
    ImageInfo *info;
    MontageInfo *montageInfo;

    /* Obtain the ImageInfo */
    info = (ImageInfo*) getHandle(env, imageInfo, "imageInfoHandle", NULL);
    if (info == NULL) {
        throwMagickException(env, "Unable to obtain ImageInfo handle");
        return;
    }

    /* Initialise the MontageInfo handle, allocating memory if required */
    montageInfo =
        (MontageInfo*) getHandle(env, self, "montageInfoHandle", NULL);
    if (montageInfo == NULL) {
        montageInfo = (MontageInfo*) AcquireMemory(sizeof(MontageInfo));
        if (montageInfo == NULL) {
            throwMagickException(env,
                                 "Unable to allocate "
                                 "memory for MontageInfo");
            return;
        }
    }
    GetMontageInfo(info, montageInfo);
    setHandle(env, self, "montageInfoHandle", (void*) montageInfo, NULL);
}

mxRadioButton::mxRadioButton (mxWindow *parent, int x, int y, int w, int h, const char *label, int id, bool newGroup)
: mxWidget (parent, x, y, w, h, label)
{
	if (!parent)
		return;

	DWORD dwStyle = WS_VISIBLE | WS_CHILD | BS_AUTORADIOBUTTON;
	HWND hwndParent = (HWND) ((mxWidget *) parent)->getHandle ();

	if (newGroup)
		dwStyle |= WS_GROUP;

	void *handle = (void *) CreateWindowEx (0, "BUTTON", label, dwStyle,
				x, y, w, h, hwndParent,
				(HMENU) id, (HINSTANCE) GetModuleHandle (NULL), NULL);
	
	SendMessage ((HWND) handle, WM_SETFONT, (WPARAM) (HFONT) GetStockObject (ANSI_VAR_FONT), MAKELPARAM (TRUE, 0));
	SetWindowLong ((HWND) handle, GWL_USERDATA, (LONG) this);

	setHandle (handle);
	setType (MX_RADIOBUTTON);
	setParent (parent);
	setId (id);

	setChecked (newGroup);
}

mxProgressBar::mxProgressBar (mxWindow *parent, int x, int y, int w, int h, int style)
: mxWidget (parent, x, y, w, h)
{
	if (!parent)
		return;

	d_this = new mxProgressBar_i;

	DWORD dwStyle = WS_VISIBLE | WS_CHILD;
	HWND hwndParent = (HWND) ((mxWidget *) parent)->getHandle ();

	if (style == Smooth)
		dwStyle |= PBS_SMOOTH;

	void *handle = (void *) CreateWindowEx (0, PROGRESS_CLASS, "", dwStyle,
				x, y, w, h, hwndParent,
				(HMENU) NULL, (HINSTANCE) GetModuleHandle (NULL), NULL);
	
	SendMessage ((HWND) handle, WM_SETFONT, (WPARAM) (HFONT) GetStockObject (ANSI_VAR_FONT), MAKELPARAM (TRUE, 0));

	setHandle (handle);
	setType (MX_PROGRESSBAR);
	setParent (parent);

	parent->addWidget (this);
}

void
TDECModuleInfo::loadAll() 
{
  if( !_service ) /* We have a bogus service. All get functions will return empty/zero values */
    return;

  _allLoaded = true;

  // library and factory
  setHandle(_service->property("X-TDE-FactoryName", TQVariant::String).toString());

  TQVariant tmp;

  // read weight
  tmp = _service->property( "X-TDE-Weight", TQVariant::Int );
  setWeight( tmp.isValid() ? tmp.toInt() : 100 );

  // does the module need super user privileges?
  tmp = _service->property( "X-TDE-RootOnly", TQVariant::Bool );
  setNeedsRootPrivileges( tmp.isValid() ? tmp.toBool() : false );

  // does the module need to be shown to root only?
  // Deprecated ! KDE 4
  tmp = _service->property( "X-TDE-IsHiddenByDefault", TQVariant::Bool );
  setIsHiddenByDefault( tmp.isValid() ? tmp.toBool() : false );

  // get the documentation path
  setDocPath( _service->property( "DocPath", TQVariant::String ).toString() );

  tmp = _service->property( "X-TDE-Test-Module", TQVariant::Bool );
  setNeedsTest( tmp.isValid() ? tmp.asBool() : false );
}

int timeListener::start() {
    int fd = socket(AF_INET, SOCK_STREAM, 0);
    int ret = -1;
    struct sockaddr_in servaddr;
    if(fd < 0) {
        perror("socket error!");
        return -1;
    }
    setHandle(fd);
    bzero(&servaddr, sizeof(servaddr));
    servaddr.sin_family = AF_INET;
    servaddr.sin_port  = htons(port_);
    ret = inet_pton(AF_INET, ip_.c_str(), &servaddr.sin_addr);
    if(ret < 0) {
        perror("inet_pton error!");
        return -1;
    }
    ret = bind(fd, (struct sockaddr*)&servaddr, sizeof(servaddr));
    if(ret < 0) {
        perror("bind error!");
        return -1;
    }
    ret = listen(fd, 64);
    if(ret < 0) {
        perror("listen error!");
        return -1;
    }
    std::cerr<<"time server is listening..."<<std::endl;
    return 0;
}

////////////////////////////////////////////////////////////////////////////////
// create
//virtual
void RsVertexBufferGL::create()
{
	// Generate buffers.
	GLuint Handle;
	glGenBuffers( 1, &Handle );
	setHandle( Handle );
	
	if( Handle != 0 )
	{
		// Increment fence, update will decrement it.
		UpdateSyncFence_.increment();

		// Update resource.
		update();
		
		// Destroy if there is a failure.
		if ( glGetError() != GL_NO_ERROR )
		{
			destroy();
		}
		else
		{
			Created_ = BcTrue;
		}
	}
}

void PublicationBase::update(void *data)
{
	if (_handle != nullptr) {
		int ret = orb_publish(getMeta(), getHandle(), data);

		if (ret != PX4_OK) { warnx("publish fail"); }

	} else {
		orb_advert_t handle;

		if (_priority > 0) {
			handle = orb_advertise_multi(
					 getMeta(), data,
					 &_instance, _priority);

		} else {
			handle = orb_advertise(getMeta(), data);
		}

		if (int64_t(handle) != PX4_ERROR) {
			setHandle(handle);

		} else {
			warnx("advert fail");
		}
	}
}

/*
 * Class:     magick_ImageInfo
 * Method:    setFileName
 * Signature: (Ljava/lang/String;)V
 */
JNIEXPORT void JNICALL Java_magick_ImageInfo_setFileName
    (JNIEnv *env, jobject obj, jstring fileName)
{
    ImageInfo *imageInfo = NULL;
    jfieldID handleFid = 0;
    const char *cstr = NULL;

    imageInfo = (ImageInfo*) getHandle(env, obj,
				       "imageInfoHandle", &handleFid);

    if (imageInfo == NULL) {
	imageInfo = (ImageInfo *) AcquireMemory(sizeof(ImageInfo));
	if (imageInfo == NULL) {
	    throwMagickException(env, "Unable to allow memory for handle");
	    return;
	}
	GetImageInfo(imageInfo);
	setHandle(env, obj, "imageInfoHandle", (void*) imageInfo, &handleFid);
    }

    cstr = (*env)->GetStringUTFChars(env, fileName, 0);
    strcpy(imageInfo->filename, cstr);
    (*env)->ReleaseStringUTFChars(env, fileName, cstr);

#ifdef DIAGNOSTIC
    fprintf(stderr, "Set the file name in ImageInfo to %s\n",
            imageInfo->filename);
#endif
}

/*
 * Class:     org_tritonus_lowlevel_cdda_cdparanoia_Cdparanoia
 * Method:    open
 * Signature: (Ljava/lang/String;)I
 */
JNIEXPORT jint JNICALL
Java_org_tritonus_lowlevel_cdda_cdparanoia_Cdparanoia_open
(JNIEnv *env, jobject obj, jstring strDevice)
{
	int	nReturn;
	const char*	cd_dev;
	cdrom_drive*	cdrom = NULL;
	handle_t*	pHandle;
	int		nParanoiaMode;

	if (debug_flag) { fprintf(debug_file, "Java_org_tritonus_lowlevel_cdda_cdparanoia_Cdparanoia_open(): begin\n"); }
	cd_dev = (*env)->GetStringUTFChars(env, strDevice, NULL);
	if (cd_dev == NULL)
	{
		if (debug_flag) { fprintf(debug_file, "Java_org_tritonus_lowlevel_cdda_cdparanoia_Cdparanoia_open(): GetStringUTFChars() failed.\n"); }
		return -1;
	}
	if (debug_flag) { fprintf(debug_file, "Java_org_tritonus_lowlevel_cdda_cdparanoia_Cdparanoia_open(): device name: %s\n", cd_dev); }
	cdrom = cdda_identify(cd_dev, 0, NULL);
	if (debug_flag) { fprintf(debug_file, "Java_org_tritonus_lowlevel_cdda_cdparanoia_Cdparanoia_open(): device name: %s\n", cd_dev); }
	(*env)->ReleaseStringUTFChars(env, strDevice, cd_dev);
	if (cdrom == NULL)
	{
		if (debug_flag) { fprintf(debug_file, "Java_org_tritonus_lowlevel_cdda_cdparanoia_Cdparanoia_open(): cdda_identify() failed.\n"); }
		return -1;
	}
	nReturn = cdda_open(cdrom);
	if (nReturn < 0)
	{
		if (debug_flag) { fprintf(debug_file, "Java_org_tritonus_lowlevel_cdda_cdparanoia_Cdparanoia_open(): cdda_open() failed.\n"); }
		return -1;
	}

	if (debug_flag) { fprintf(debug_file, "Java_org_tritonus_lowlevel_cdda_cdparanoia_Cdparanoia_open(): drive endianess: %d\n", cdrom->bigendianp); }

	pHandle = (handle_t*) malloc(sizeof(handle_t));
	if (pHandle == NULL)
	{
		if (debug_flag) { fprintf(debug_file, "Java_org_tritonus_lowlevel_cdda_cdparanoia_Cdparanoia_open(): malloc() failed.\n"); }
		cdda_close(cdrom);
		return -1;
	}
	pHandle->drive = cdrom;
	pHandle->paranoia = paranoia_init(pHandle->drive);
	if (pHandle->paranoia == NULL)
	{
		if (debug_flag) { fprintf(debug_file, "Java_org_tritonus_lowlevel_cdda_cdparanoia_Cdparanoia_open(): paranoia_init() failed.\n"); }
		cdda_close(pHandle->drive);
		free(pHandle);
		return -1;
	}
	nParanoiaMode = getParanoiaMode();
	if (debug_flag) { fprintf(debug_file, "Java_org_tritonus_lowlevel_cdda_cdparanoia_Cdparanoia_open(): paranoia mode: %d\n", nParanoiaMode); }
	paranoia_modeset(pHandle->paranoia, nParanoiaMode);

	setHandle(env, obj, pHandle);
	if (debug_flag) { fprintf(debug_file, "Java_org_tritonus_lowlevel_cdda_cdparanoia_Cdparanoia_open(): end\n"); }
	return 0;
}

///析构函数
CwxAppHandler4UnixConn::~CwxAppHandler4UnixConn()
{
    if (getHandle() != CWX_INVALID_HANDLE)
    {
        ::close(getHandle());
        setHandle(CWX_INVALID_HANDLE);
    }
}