Function InterceptTxnHook

example/plugins/c-api/intercept/intercept.cc:515–541

Handle events that occur on the TSHttpTxn.

// Handle events that occur on the TSHttpTxn.
static int
InterceptTxnHook(TSCont contp, TSEvent event, void *edata)
{
  argument_type arg(edata);

  VDEBUG("contp=%p, event=%s (%d), edata=%p", contp, TSHttpEventNameLookup(event), event, arg.ptr);

  switch (event) {
  case TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE: {
    if (InterceptShouldInterceptRequest(arg.txn)) {
      TSCont c = InterceptContCreate(InterceptInterceptHook, TSMutexCreate(), arg.txn);

      VDEBUG("intercepting origin server request for txn=%p, cont=%p", arg.txn, c);
      TSHttpTxnServerIntercept(c, arg.txn);
    }

    break;
  }

  default:
    VERROR("unexpected event %s (%d)", TSHttpEventNameLookup(event), event);
    break;
  }

  TSHttpTxnReenable(arg.txn, TS_EVENT_HTTP_CONTINUE);
  return TS_EVENT_NONE;
}

void
TSPluginInit(int /* argc */, const char * /* argv */[])