Function get_match_data

server/util_pcre.c:332–381

#endif

static match_data_pt get_match_data(apr_size_t size,
                                    match_vector_pt small_vector,
                                    int *to_free)
{
    apr_thread_t *current;
    struct apreg_tls *tls = NULL;

    /* Even though AP_HAS_THREAD_LOCAL, we may still be called by a
     * native/non-apr thread, let's fall back to alloc/free in this case.
     */
    current = ap_thread_current();
    if (!current) {
        *to_free = 1;
        return alloc_match_data(size, small_vector);
    }

    apr_thread_data_get((void **)&tls, "apreg", current);
    if (!tls || tls->size < size) {
        apr_pool_t *tp = apr_thread_pool_get(current);
        if (!tls) {
            tls = apr_pcalloc(tp, sizeof(*tls));
#ifdef HAVE_PCRE2
            apr_thread_data_set(tls, "apreg", apreg_tls_cleanup, current);
#else
            apr_thread_data_set(tls, "apreg", NULL, current);
#endif
        }

        tls->size *= 2;
        if (tls->size < size) {
            tls->size = size;
            if (tls->size < POSIX_MALLOC_THRESHOLD) {
                tls->size = POSIX_MALLOC_THRESHOLD;
            }
        }

#ifdef HAVE_PCRE2
        pcre2_match_data_free(tls->data); /* NULL safe */
        tls->data = pcre2_match_data_create(tls->size, NULL);
        if (!tls->data) {
            tls->size = 0;
            return NULL;
        }
#else
        tls->data = apr_palloc(tp, tls->size * sizeof(int) * 3);
#endif
    }

    return tls->data;
}

#else /* AP_HAS_THREAD_LOCAL && !defined(APREG_NO_THREAD_LOCAL) */