Function gjs_context_dump_heaps

gjs/context.cpp:172–193

Currently heap dumping via SIGUSR1 is only supported on UNIX platforms! This can reduce performance. See note in system.cpp on System.dumpHeap().

// Currently heap dumping via SIGUSR1 is only supported on UNIX platforms!
// This can reduce performance. See note in system.cpp on System.dumpHeap().
static void gjs_context_dump_heaps() {
    static unsigned counter = 0;

    gjs_memory_report("signal handler", false);

    // dump to sequential files to allow easier comparisons
    Gjs::AutoChar filename{g_strdup_printf("%s.%jd.%u", dump_heap_output.get(),
                                           static_cast<intmax_t>(getpid()),
                                           counter)};
    ++counter;

    FILE *fp = fopen(filename, "w");
    if (!fp)
        return;

    for (GList* l = all_contexts; l; l = g_list_next(l)) {
        auto* gjs = static_cast<GjsContextPrivate*>(l->data);
        js::DumpHeap(gjs->context(), fp, js::CollectNurseryBeforeDump);
    }

    fclose(fp);
}

static gboolean dump_heap_idle(void*) {
    dump_heap_idle_id = 0;