Repository navigation
nodejs C++ addon exception catch #2169
Description
i have written a C++ addon and compile it into *.node file, somtimes it crashes, so i want to catch the exception, what i do now is tring to write dump file with windows API in my C++ file, but when i run my program, the exception-catch callback function never be triggered. What confuses me is that when i use the same code to catch exception and write dump file in *.dll file, it works well, what should i do if i want to write dump file correctly when my C++ addon crashes? Thanks!
Activity
gireeshpunathil commentedon Dec 23, 2019
@AndyWangGo - is this still an issue?
What I understand from your explanation is: when you tested your code (that is shown in the linked issues) in a stand alone program it works (able to catch signals and produce valid minidumps), but does not work when built as a node.js addon.
Is my understanding right?
wanghui-andy commentedon Dec 31, 2019
gireeshpunathil commentedon Dec 31, 2019
https://github.com/libuv/libuv/blob/2c279504f92a7ab1fc54c85ec36272722198a77e/src/win/core.c#L178-L179
I think it has to do with this setting in
libuv, which tells windows to not take the normal route for structured exception handling. cc @nodejs/libuv for an expert opinion.gireeshpunathil commentedon Jan 2, 2020
@AndyWangGo - alternatively, if you are / can build node from source, can you comment out the line mentioned above and see what happens?
wanghui-andy commentedon Jan 2, 2020
Thanks for your kind reply. I see what you mean in the last reply, but i do not build libuv to use it, so i can not modify the libuv source code. Is there any other way to change the setting in libuv such as calling API?
gireeshpunathil commentedon Jan 2, 2020
@AndyWangGo - I don't think so (i.e, an API call to suppress this setting).
Can you do:
in your addon's entry point function (the module registration entry point) and see what happens?
wanghui-andy commentedon Jan 2, 2020
ok, i'll try and see what will happen.
PoojaDurgad commentedon Sep 25, 2020
@AndyWangGo - is this still outstanding?
PoojaDurgad commentedon Oct 26, 2020
inactive. closing!!