Re: How to create multiple contexts in different threads?

On Wednesday, March 30, 2016 at 9:17:53 PM UTC+2, [email protected] wrote:
> On Wednesday, March 30, 2016 at 9:09:46 PM UTC+2, [email protected] wrote:
> > PR_GetCurrentThread () also returns 0.
> 
> That should not happen according to the documentation. I added an assertion in isLock to make sure it was not because gdb and it fails:
> Assertion failure: PR_GetCurrentThread()!=nullptr, at /home/clement/src/mozilla-esr38/js/src/vm/HelperThreads.cpp:537
> 
> Any idea about why this happens? Should I ask on a NSPR mailing list instead?

I think I solved most of my problems.

The PR_GetCurrentThread problem was solved by using --with-system-nspr configure option. I am still unsure where the broken NSPR that was used before came from.

I then got some race with signal handler installation. From AsmJSSignalHandlers.js:1011 (js::EnsureSignalHandlersInstalled)
    // All the rest of the handlers are process-wide and thus must only be
    // installed once. We assume that there are no races creating the first
    // JSRuntime of the process.
So I created a parent runtime before every other to make sure there was no race when initializing global data.

And there was some segfault because of undefined DEBUG (js-config.h only defines JS_DEBUG, but DEBUG is used in some public headers, is that a bug?).

Finally there was some more assertion failures but they were the kind I was expecting from a debug build in order to fix my code.

Thanks for your help.