samples/ffi/http not work.NativeCallable.listener not work

[mochunshuang]

i find c side callback error just when in new thread.
i think my code wrong but may be not.

i pull this project add test samples/ffi/http example
crash as same.

window10 desktop,dart3.19.this console output:
flutter: Sending GET request...
Lost connection to device.

[mkustermann]

/cc @liamappelbe

[liamappelbe]

@mochunshuang Can you give us more information?

• What command did you run to run the example?
• Did you build the fake_http.dll library successfully?
• It sounds like you're running it using flutter. Can you post your flutter doctor -v output?
• Since it printed "Lost connection to device.", does that mean you're running the example on a mobile device? What device is ir running on?
• Do you have a stack trace for the crash?

[mochunshuang]

@liamappelbe dart get crush and flutter no.Here is the response to your question:

Did you build the fake_http.dll library successfully?
successfully.
CMakeLists.txt
add_library(fake_http SHARED fake_http.cc ) set_target_properties( fake_http PROPERTIES CXX_STANDARD 20 CXX_STANDARD_REQUIRED ON CXX_EXTENSIONS OFF )

What command did you run to run the example?
vscode-idea or dart .\http.dart

It sounds like you're running it using flutter. Can you post your flutter doctor -v output?

Since it printed "Lost connection to device.", does that mean you're running the example on a mobile device? What device is ir running on?
no mobile device.

Do you have a stack trace for the crash?
no crash

[mochunshuang]

@liamappelbe
Win10 operating system. I am using the highest version SDK. Can the Windows operating system use the Win11 SDK？

[mochunshuang]

@liamappelbe crush by the line: calloc.free(responsePointer); After commenting out all this line of code, it can run, but it will cause a memory leak；ffi2.1.2;