Function respToTriggerPrefetch

plugins/prefetch/plugin.cc:468–484

* @brief Find out if the current response to trigger a background prefetch. * * Pre-fetch only on HTTP codes 200 and 206 or object found in cache (previous good response) * * @param txnp HTTP transaction structure * @return true - trigger prefetch, false - don't trigger. */

 * @return true - trigger prefetch, false - don't trigger.
 */
static bool
respToTriggerPrefetch(TSHttpTxn txnp)
{
  bool trigger = false;
  if (foundFresh(txnp)) {
    /* If found in cache and fresh trigger next (same as good response from origin) */
    PrefetchDebug("trigger background fetch (cached)");
    trigger = true;
  } else if (isResponseGood(txnp)) {
    /* Trigger all necessary background fetches based on the next path pattern */
    PrefetchDebug("trigger background fetch (good origin response)");
    trigger = true;
  } else {
    PrefetchDebug("don't trigger background fetch");
  }
  return trigger;
}

/**
 * @brief Callback function that handles necessary foreground / background fetch operations.