1 /* 2 * Copyright (C) 2023 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef BERBERIS_GUEST_OS_PRIMITIVES_GUEST_THREAD_MAP_H_ 18 #define BERBERIS_GUEST_OS_PRIMITIVES_GUEST_THREAD_MAP_H_ 19 20 #include <sys/types.h> // pid_t 21 #include <mutex> 22 23 #include "berberis/base/forever_map.h" 24 #include "berberis/guest_os_primitives/guest_thread.h" 25 26 namespace berberis { 27 28 class GuestThreadMap { 29 public: 30 void ResetThreadTable(pid_t tid, GuestThread* thread); 31 void InsertThread(pid_t tid, GuestThread* thread); 32 GuestThread* RemoveThread(pid_t tid); 33 GuestThread* FindThread(pid_t tid); 34 35 // TODO(b/280551726): Replace template with function that accepts a function arg. 36 template <typename F> ForEachThread(const F & f)37 void ForEachThread(const F& f) { 38 std::lock_guard<std::mutex> lock(mutex_); 39 for (const auto& v : map_) { 40 f(v.first, v.second); 41 } 42 } 43 44 private: 45 ForeverMap<pid_t, GuestThread*> map_; 46 std::mutex mutex_; 47 }; 48 49 } // namespace berberis 50 51 #endif // BERBERIS_GUEST_OS_PRIMITIVES_GUEST_THREAD_MAP_H_