http2 serverpush

[muyushifang07]

http2 status 500 时，会崩溃 switch(rc) { case -1: /* select error / break; case 0: default: / timeout or readable/writable sockets */ // 此处服务端返回500 时会崩溃 curl_multi_perform(multi_handle, &still_running);

            break;
    }