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Link_Arbiter_Daemon configure

hi, friends:

        i need use multiple process to access an DSP server. but i don't known how to config the LAD.  It's need configuring "osalGlobal.useLinkArbiter = true;", in Severs or only in application of codec engine.     I config it  in codec engine cfg, like this:

********************************************************************************************************

/* Load support for the Codec Engine OSAL */
var osalGlobal = xdc.useModule('ti.sdo.ce.osal.Global');
osalGlobal.useLinkArbiter = true;
var os = xdc.useModule('ti.sdo.ce.osal.linux.Settings');
osalGlobal.os = os;

/* Configure CE to use it's DSP Link Linux version */
var ipc = xdc.useModule('ti.sdo.ce.ipc.Settings');
ipc.commType = ipc.COMM_DSPLINK;

/* Enable SoCrates tracing in the demo */
var TraceUtil = xdc.useModule('ti.sdo.ce.utils.trace.TraceUtil');
TraceUtil.attrs = TraceUtil.SOCRATES_TRACING;

/*
 *  ======== Engine Configuration ========
 */
var Engine = xdc.useModule('ti.sdo.ce.Engine');
/* Engine.linkCfg= "CE_default";*/
var demoEngine = Engine.createFromServer(
    "video",
    "./codecCombo.x64P",
    "ti.sdo.servers.codec"
    );

/* Load support for the 'Davinci Multimedia Application Interface' module */
var DMAI = xdc.loadPackage('ti.sdo.dmai');

**********************************************************************************************************

and then  prompt the mistakes when i   make this application:

************************************************************************************************************

Linking videotest from lock1.o Vdec3.o Venc2.o vid_capture.o vid_decoder.o vid_display.o vid_edge.o vid_encoder.o vid_image.o vid_mcintf.o vid_mix.o vid_osd.o vid_threadinfo.o vid_ut.o ../util/mcvlog.o ../util/skra.o ../util/tvtimer.o ../util/ut_msgass.o ../util/ut_msgstrfmt.o ../util/ut_queuepool.o ../util/utQueuePool.o ../util/ut_socket.o ../util/ut_timer.o videotest_config/linker.cmd..
/home/zhoum/dvsdk_2_00_00_22/codec_engine_2_23_01/packages/ti/sdo/ce/ipc/dsplink/lib/release/ipc_dsplink_6467.av5T(Processor_dsplink.ov5T): In function `procDelete':
Processor_dsplink.c:(.text+0x524): undefined reference to `LAD_releaseDsp'
Processor_dsplink.c:(.text+0x558): undefined reference to `LAD_disconnect'
/home/zhoum/dvsdk_2_00_00_22/codec_engine_2_23_01/packages/ti/sdo/ce/ipc/dsplink/lib/release/ipc_dsplink_6467.av5T(Processor_dsplink.ov5T): In function `daemon':
Processor_dsplink.c:(.text+0xbd4): undefined reference to `LAD_connect'
Processor_dsplink.c:(.text+0xc18): undefined reference to `LAD_startupDsp'
collect2: ld returned 1 exit status
make: *** [videotest] Error 1

***************************************************************************************************************

Could someone give me some suggesstions for this problem solves?  Thanks!