Crashing at ~API_HotlinkNode()

ReignBough — Wed, 16 Apr 2025 06:42:18 GMT

Getting this message on the crash breakpoint:

Critical error detected c0000374
A breakpoint instruction (__debugbreak() statement or a similar call) was executed in Archicad.exe.

This happened here:

GS::Array<API_Guid>& hotlinks;
//.. more codes here that retrieves hotlink guids
for (UInt32 i = 0; i < hotlinks.GetSize(); ++i)
{
  //get the hotlink node
  API_HotlinkNode hotlinkNode = Hotlink::GetNode(hotlinks[i]);
  GS::UniString nameUStr = hotlinkNode_1.name;
  if (!FilterHotlinkName(nameUStr))
    continue; <== crashes here
  // .. more codes here
}

FilterHotlinkName() checks the name if it follows a certain format and if it is valid value. Hotlink::GetNode() handles correct ArchiCAD version calls:

API_HotlinkNode Hotlink::GetNode(API_Guid i_guid)
{
  API_HotlinkNode hotlinkNode = {};
  hotlinkNode.guid = i_guid;
#if ARCHICAD_VER >= 27
  LastGSErr = ACAPI_Hotlink_GetHotlinkNode(&hotlinkNode);
#else
  LastGSErr = ACAPI_Database(APIDb_GetHotlinkNodeID, &hotlinkNode);
#endif
  return hotlinkNode;
}

Specifically, the crash happens here (APIdefs_Database.h):

~API_HotlinkNode ()
{ vvvvvvvvvvvvvvvvvvvvv==== crashes here
  delete sourceLocation; sourceLocation = nullptr;
  delete serverSourceLocation; serverSourceLocation = nullptr;
  BMKillPtr (&userData.data);
}

Re: Crashing at ~API_HotlinkNode()

Oleg — Wed, 16 Apr 2025 09:41:14 GMT

I guess about reason.

Actually, you can not copy and assign the API_HotlinkNode structure.
Formally this structure have to declare empty copy constructor snd assignmen operator to protect it, as it has such destructor.
So you can not to return API_HotlinkNode from the GetNode function by value.

For example, you may to implement the GetNode function like this: bool GetNode( const API_Guid& guid, API_HotlinkNode* node ).

topic Crashing at ~API_HotlinkNode() in Archicad C++ API

Crashing at ~API_HotlinkNode()

Re: Crashing at ~API_HotlinkNode()