About AlexStepanov

I want to use multiple different flatbuffers in my application, but I can't register more than one flatbuffer as a type in the data layer. I extended the datalayer.register.node example to include a second flatbuffer (called sampleScheme2.fbs). Now when I start the application, I always see that registerType fails with the message "DL_INVALID_VALUE" for the second flatbuffer.  If I call registerType for sampleScheme2.fbs first, than sampleScheme.fbs returns "DL_INVALID_VALUE" when calling registerType. Registering the nodes works without any problems. Do I have to create a new data layer provider for each flatbuffer? ... View more

Hello, I would like to write and read data from the DataLayer and also provide a user interface through the browser for configuration of the app. I'm using the following HTTP Library: https://github.com/yhirose/cpp-httplib Now I face the following problem: When creating a datalayer node and including the httplib.h file, the snap app crashes. The minimal example I could recreate, was to use the datalayer.register.node sample and just put a #include "httplib.h"  at the top of the main.cpp file (and also put the httplib.h file next to the main.cpp). Building the sample works, but when the app starts it crashes (seg faults) directly. I did not put any additional code, only the include. All classes and methods are behind namespaces. I also tried to rename all defines to be unique, but the crash did not change. The crash occurs during the start() of the provider. Using the split.py script from the github project, I could split the httplib.h file into a httplib.cc and httplib.h, than I created a shared libary. Now when I build the project and link against the shared library (and also starting a http server serving a simple site), the app crashes when an access over http occurs. With this setup I also saw the message, that the segfault occured in the libcomm_datalayer.so: appname[27000]: segfault at 15 ip 00007f5d16e98184 sp 00007f5d06ffbee0 error 4 in libcomm_datalayer.so[7f5d16d97000+25f000]  Including the new httplib.h file (after splitting it with split.py) worked fine, so the includes and defines from httplib.h are not the culprit.  Do I need to configure the sockets from the httplib library in some specific way to not to conflict with the datalayer sockets?  ... View more