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Color Oled(SSD1331) connect to STMicroelectronics Nucleo-F466
Diff: mbed-os/TESTS/netsocket/dns/synchronous_dns_cache.cpp
- Revision:
- 0:8fdf9a60065b
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-os/TESTS/netsocket/dns/synchronous_dns_cache.cpp Wed Oct 10 00:33:53 2018 +0000 @@ -0,0 +1,56 @@ +/* + * Copyright (c) 2018, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "mbed.h" +#include "greentea-client/test_env.h" +#include "unity.h" +#include "utest.h" +#include "dns_tests.h" + +using namespace utest::v1; + +namespace { +int ticker_us = 0; +} + +static void test_dns_query_ticker(void) +{ + ticker_us += 100; +} + +void SYNCHRONOUS_DNS_CACHE() +{ + rtos::Semaphore semaphore; + + Ticker ticker; + ticker.attach_us(&test_dns_query_ticker, 100); + + for (unsigned int i = 0; i < 5; i++) { + SocketAddress address; + int started_us = ticker_us; + nsapi_error_t err = get_interface()->gethostbyname(dns_test_hosts_second[0], &address); + + int delay_ms = (ticker_us - started_us) / 1000; + + static int delay_first = delay_ms / 2; + // Check that cached accesses are at least twice as fast as the first one + TEST_ASSERT_TRUE(i == 0 || delay_ms <= delay_first); + + printf("DNS: query \"%s\" => \"%s\", time %i ms\n", + dns_test_hosts_second[0], address.get_ip_address(), delay_ms); + } +}