1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 <2023> 2024 | Index | 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 <2023> 2024 |
<== Date ==> | <== Thread ==> |
---|
Subject: | Help developing AD plugin |
From: | "Marco A. Barra Montevechi Filho via Tech-talk" <tech-talk at aps.anl.gov> |
To: | "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov> |
Cc: | SWC <swc at lnls.br> |
Date: | Wed, 16 Aug 2023 20:39:02 +0000 |
Hi all, we are developing a geometric restoration plugin here at Sirius for areaDetector
Im using NDWarp as a base just because it seems to work as a good example. Also, im unfortunately bound to EPICS 3.15.6, AreaDetector R3-7. Taking NDWarp as a base, i basically stripped everything between NDPluginWarp::processCallbacks and NDPluginWarp::endProcessCallbacks, so the code is what i append at the end of this e-mail: it should only copy the original array that comes to it and pass it to the other connected plugins. By compiling and running an IOC with this plugin, when i enable its callbacks i get the following message in my ioc shell: 2023/08/16 17:29:51.666 NDPluginDriver::endProcessCallbacks: Couldn't allocate output array. Further processing terminated. Although i tried reading the source code, using gdb and recompiling ADCore by adding -g to USR_CXXFLAGS_Linux ad stepping into each function, etc. etc. i couldnt figure out what am i doing wrong. Am i passing a NULL array to NDPluginDriver::endProcessCallbacks? Are there any hints about this? Thanks in advance, Marco CODE PART:
NDPluginWarp::processCallbacks(NDArray
*pArray)
{
// pArray is borrowed reference. Caller will release()
NDPluginDriver::beginProcessCallbacks(pArray);
NDArrayInfo info;
NDArray *pOutput;
(void)pArray->getInfo(&info);
if(pArray->ndims!=2 || info.xSize==0 || info.ySize==0)
{
asynPrint(pasynUserSelf, ASYN_TRACE_ERROR,
"%s::
2D non-empty expected",
this->portName);
return;
}
switch(pArray->dataType)
{
case NDInt8:
case NDUInt8:
case NDInt16:
case NDUInt16:
case NDInt32:
case NDUInt32:
case NDFloat32:
case NDFloat64:
break;
default:
asynPrint(pasynUserSelf, ASYN_TRACE_ERROR,
"%s::
Unsupported type %u",
this->portName,
(unsigned)pArray->dataType);
return;
}
asynPrint(pasynUserSelf, ASYN_TRACE_FLOW,
"%s:
%s ndarray=%p\n",
this->portName, __PRETTY_FUNCTION__, pArray);
printf("a\n");
this->pNDArrayPool->copy(pArray,
pOutput, true,
true,
true);
NDPluginDriver::endProcessCallbacks(pOutput,
false,
true);
} Aviso Legal: Esta mensagem e seus anexos podem conter informações confidenciais e/ou de uso restrito. Observe atentamente seu conteúdo e considere eventual consulta ao remetente antes de copiá-la, divulgá-la ou distribuí-la. Se você recebeu esta mensagem por engano, por favor avise o remetente e apague-a imediatamente. Disclaimer: This email and its attachments may contain confidential and/or privileged information. Observe its content carefully and consider possible querying to the sender before copying, disclosing or distributing it. If you have received this email by mistake, please notify the sender and delete it immediately. |