1 // Copyright 2021 The Pigweed Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not 4 // use this file except in compliance with the License. You may obtain a copy of 5 // the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12 // License for the specific language governing permissions and limitations under 13 // the License. 14 15 #include <chrono> 16 17 #include "pw_assert/check.h" 18 #include "pw_chrono/system_clock.h" 19 #include "pw_log/log.h" 20 #include "pw_thread/non_portable_test_thread_options.h" 21 #include "pw_thread/sleep.h" 22 #include "pw_thread_threadx/context.h" 23 #include "pw_thread_threadx/options.h" 24 25 namespace pw::thread::test { 26 namespace { 27 28 std::array<threadx::ContextWithStack<>, 2> thread_contexts; 29 30 } // namespace 31 TestOptionsThread0()32const Options& TestOptionsThread0() { 33 static constexpr threadx::Options thread_0_options = 34 threadx::Options() 35 .set_name("pw::TestThread0") 36 .set_context(thread_contexts[0]); 37 return thread_0_options; 38 } 39 TestOptionsThread1()40const Options& TestOptionsThread1() { 41 static constexpr threadx::Options thread_1_options = 42 threadx::Options() 43 .set_name("pw::TestThread1") 44 .set_context(thread_contexts[1]); 45 return thread_1_options; 46 } 47 WaitUntilDetachedThreadsCleanedUp()48void WaitUntilDetachedThreadsCleanedUp() { 49 // ThreadX does not permit the running thread to delete itself, which means 50 // we have to do this to re-use a TCB as otherwise we will be leaking stale 51 // references in the kernel. 52 for (auto& context : thread_contexts) { 53 if (context.tcb().tx_thread_id != TX_THREAD_ID) { 54 // The TCB was either not used or was already deleted. Note that 55 // tx_thread_terminate does NOT clear this state by design. 56 continue; 57 } 58 59 // If the thread was created but has not been deleted, it means that the 60 // thread was detached before it finished. Wait until it is completed. 61 while (context.tcb().tx_thread_state != TX_COMPLETED) { 62 pw::this_thread::sleep_for( 63 chrono::SystemClock::for_at_least(std::chrono::milliseconds(1))); 64 } 65 66 const UINT result = tx_thread_delete(&context.tcb()); 67 PW_CHECK_UINT_EQ(TX_SUCCESS, result, "Failed to delete thread"); 68 } 69 } 70 71 } // namespace pw::thread::test 72