Open rahul19861986 opened 1 month ago
aljazfrancic
commented
1 month ago Can you try this with a more recent version of openDAQ? For example: https://docs-dev.opendaq.com/ You can find detailed installation instructions for C++, C# and Python here: https://docs-dev.opendaq.com/manual/opendaq/3.4.0/getting_started/quick_start.html
aljazfrancic
commented
1 month ago Also make sure to use the same version of openDAQ for both saving and loading the configuration.
rahul19861986
commented
1 month ago Unfortunately, it's not working as expected. I tried building the latest version from the master branch, as there's no release tag for version 3.4, but it crashes with an error when I attempt to create an instance
denise-opendaq
commented
1 month ago Hello @rahul19861986
I see that the module manager is trying to find the libraries in /usr/local/lib/modules. Are you sure the built modules are located in this path? If the folder path is different, you can either override the environment variable OPENDAQ_MODULES_PATH or replace MODULE_PATH with the actual path to the libraries in examples/cpp/stream_reader_example/stream_reader_example.cpp.
Now, regarding the initial problem 😉: The signal is not storing the descriptor because setting the descriptor is the responsibility of the signal's owner. I see that you're attempting to change the sample rate of the signal for the reference device. To modify the signal's delta, you should adjust the sample rate of the channel. To do this, set the channel property UseGlobalSampleRate to false, and then assign a custom value to the SampleRate property. Here's an example of how to do this:
int main(int /*argc*/, const char* /*argv*/[])
{
StringPtr config;
{
// Create an Instance, loading modules at MODULE_PATH
const InstancePtr instance = Instance(MODULE_PATH);
auto device = instance.addDevice("daqref://device0");
std::cout << "Initial configuration:" << std::endl;
std::cout << instance.saveConfiguration() << std::endl;
auto channel = device.getChannels()[0];
channel.setPropertyValue("UseGlobalSampleRate", false);
channel.setPropertyValue("SampleRate", 200.0);
config = instance.saveConfiguration();
std::cout << "Modified configuration with new sample rate:" << std::endl;
std::cout << config << std::endl;
}
const InstancePtr instance = Instance(MODULE_PATH);
instance.loadConfiguration(config);
std::cout << "Loaded configuration:" << std::endl;
std::cout << instance.saveConfiguration() << std::endl;
return 0;
}
VladDoc
commented
1 month ago I was able to load the configuration on 3.4, however I've found another issue: If you load the configuration with a device specified, it locks up addition of that device(when creating an instance from scratch) until you restart the simulation VM. Steps to reproduce:
Info I've found out during debugging:
daq::GenericDevicePtr<daq::IDevice>::addDevice method returns error code 0x80000025(OPENDAQ_ERR_DUPLICATEITEM) suggesting that it fails due to device being a duplicatedevice.getDevices().getCount() returns 0 before and after the call so you cannot select a device eitherdevice.getAvailableDevices() returns a list with this locked up device includedConsole logs if you try to add the device after loading config previously
python3 gui_demo.py
[tid: 14854][2024-10-27 01:06:01.705] [ModuleManager] [warning] Failed to check for network settings: open: Operation not permitted [system:1 at /__w/openDAQ/openDAQ/build/__external/src/Boost/libs/asio/include/boost/asio/detail/reactive_socket_service.hpp:133 in function 'open']
Error adding device daq://openDAQ_08:00:27:16:5c:7f: Signal with Ids (global /// remote /// key) "/9a415a3b-3ff9-405f-adc1-2732cdfd96dd/Dev/opendaq_08:00:27:16:5c:7f/Dev/opendaq_08:00:27:16:5c:7f/IO/AI/RefCh0/Sig/AI0" /// "/opendaq_08:00:27:16:5c:7f/Dev/opendaq_08:00:27:16:5c:7f/IO/AI/RefCh0/Sig/AI0" /// "/opendaq_08:00:27:16:5c:7f/IO/AI/RefCh0/Sig/AI0" failed to add - signal already added to streaming "daq.ns://X.X.X.X:7420/"Console logs if you try to load the configuration second time after the VM launch:
[tid: 14854][2024-10-27 01:11:07.620] [ModuleManager] [warning] Failed to check for network settings: open: Operation not permitted [system:1 at /__w/openDAQ/openDAQ/build/__external/src/Boost/libs/asio/include/boost/asio/detail/reactive_socket_service.hpp:133 in function 'open']
[tid: 14854][2024-10-27 01:11:07.977] [/9a415a3b-3ff9-405f-adc1-2732cdfd96dd] [warning] Failed to update device: Invalid parameter
Current behavior
loadConfiguration(json); is not working, its not updating the previous configurations, but function returns 0
Expected behavior
loadConfiguration(json); should update the new values in JSON or return an error
Code or steps
Environment
Log files or image attachments
No response