Thanks for the reply demerphq. But I think you've confused me more.

I thought my mortalized SVs were only supposed to be blown away when the following code gets executed: 

    FREETMPS;
    LEAVE;

[download]

So how could the values be freed too soon?

Also, if what you say is true, then I'd think it would hold true for storing values in a hash, too. But I experimented, and it seems like there, I have to mortalize the SVs I am storing in the hash, or there's a leak: 

    HV *hash = (HV *)sv_2mortal((SV *) newHV());
    SV *type = newSVpv("string", 0);
    //SV *type = sv_2mortal(newSVpv("string", 0));
    SvREFCNT_inc( type );
    if ( NULL == hv_store( hash, "type", strlen("type"), type, 0) ) {
        SvREFCNT_dec( type );
        printf("hv_store failed\n"); exit(1);
    }
    XPUSHs(sv_2mortal(newRV((SV *)hash)));

[download]

That leaks, but if I mortalize the SV as in the comment, everything is great, and there are no warnings. So what gives? What's the difference between the av_push and hv_store examples?

Thanks

--
edan

In reply to Re^2: perlembed: mortalize an AV, get "Attempt to free unreferenced scalar" - don't mortalize, leaks memory by edan
in thread perlembed: mortalize an AV, get "Attempt to free unreferenced scalar" - don't mortalize, leaks memory by edan

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