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asynchronous_dns_external_event_queue.cpp
00001 /* 00002 * Copyright (c) 2018, ARM Limited, All Rights Reserved 00003 * SPDX-License-Identifier: Apache-2.0 00004 * 00005 * Licensed under the Apache License, Version 2.0 (the "License"); you may 00006 * not use this file except in compliance with the License. 00007 * You may obtain a copy of the License at 00008 * 00009 * http://www.apache.org/licenses/LICENSE-2.0 00010 * 00011 * Unless required by applicable law or agreed to in writing, software 00012 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 00013 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00014 * See the License for the specific language governing permissions and 00015 * limitations under the License. 00016 */ 00017 00018 #include "mbed.h" 00019 #include "greentea-client/test_env.h" 00020 #include "unity.h" 00021 #include "utest.h" 00022 #include "dns_tests.h" 00023 00024 #include "nsapi_dns.h" 00025 00026 using namespace utest::v1; 00027 00028 namespace { 00029 int result_ok; 00030 int result_no_mem; 00031 int result_dns_failure; 00032 int result_exp_timeout; 00033 00034 const int EXTERNAL_THREAD_SIZE = 2048; 00035 const int EVENT_QUEUE_SIZE = 10; 00036 00037 events::EventQueue *event_queue; 00038 } 00039 00040 static nsapi_error_t event_queue_call(int delay, mbed::Callback<void()> func) 00041 { 00042 if (delay) { 00043 if (event_queue->call_in(delay, func) == 0) { 00044 return NSAPI_ERROR_NO_MEMORY ; 00045 } 00046 } else { 00047 if (event_queue->call(func) == 0) { 00048 return NSAPI_ERROR_NO_MEMORY ; 00049 } 00050 } 00051 return NSAPI_ERROR_OK ; 00052 } 00053 00054 void ASYNCHRONOUS_DNS_EXTERNAL_EVENT_QUEUE() 00055 { 00056 // Ensures that cache does not contain entries 00057 do_asynchronous_gethostbyname(dns_test_hosts, MBED_CONF_NSAPI_DNS_CACHE_SIZE, &result_ok, &result_no_mem, 00058 &result_dns_failure, &result_exp_timeout); 00059 00060 TEST_ASSERT(result_ok == MBED_CONF_NSAPI_DNS_CACHE_SIZE); 00061 TEST_ASSERT(result_no_mem == 0); 00062 TEST_ASSERT(result_dns_failure == 0); 00063 TEST_ASSERT(result_exp_timeout == 0); 00064 00065 // Dispatch event queue 00066 Thread eventThread(osPriorityNormal, EXTERNAL_THREAD_SIZE); 00067 EventQueue queue(EVENT_QUEUE_SIZE * EVENTS_EVENT_SIZE); 00068 eventThread.start(callback(&queue, &EventQueue::dispatch_forever)); 00069 event_queue = &queue; 00070 00071 nsapi_dns_call_in_set(event_queue_call); 00072 00073 do_asynchronous_gethostbyname(dns_test_hosts_second, MBED_CONF_APP_DNS_SIMULT_QUERIES + 1, &result_ok, &result_no_mem, 00074 &result_dns_failure, &result_exp_timeout); 00075 00076 TEST_ASSERT(result_ok == MBED_CONF_APP_DNS_SIMULT_QUERIES); 00077 TEST_ASSERT(result_no_mem == 1); // last query fails for no memory as expected 00078 TEST_ASSERT(result_dns_failure == 0); 00079 TEST_ASSERT(result_exp_timeout == 0); 00080 00081 // Give event queue time to finalise before destructors 00082 wait(2.0); 00083 00084 nsapi_dns_call_in_set(0); 00085 }
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