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 #include "pw_thread_embos/util.h" 15 16 #include "RTOS.h" 17 #include "pw_function/function.h" 18 #include "pw_status/status.h" 19 20 namespace pw::thread::embos { 21 22 namespace internal { 23 24 // Iterates through all threads that haven't been deleted, calling the provided 25 // callback. ForEachThread(const OS_TASK & starting_thread,const ThreadCallback & cb)26Status ForEachThread(const OS_TASK& starting_thread, const ThreadCallback& cb) { 27 if (!OS_IsRunning()) { 28 return Status::FailedPrecondition(); 29 } 30 31 const OS_TASK* thread = &starting_thread; 32 while (thread != nullptr) { 33 if (!cb(*thread)) { 34 // Early-terminate iteration if requested by the callback. 35 return Status::Aborted(); 36 } 37 thread = thread->pNext; 38 } 39 40 return OkStatus(); 41 } 42 43 } // namespace internal 44 ForEachThread(const ThreadCallback & cb)45Status ForEachThread(const ThreadCallback& cb) { 46 return internal::ForEachThread(*OS_Global.pTask, cb); 47 } 48 49 } // namespace pw::thread::embos 50