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Diffstat (limited to 'test/util/thread_util.h')
-rw-r--r-- | test/util/thread_util.h | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/test/util/thread_util.h b/test/util/thread_util.h deleted file mode 100644 index 923c4fe10..000000000 --- a/test/util/thread_util.h +++ /dev/null @@ -1,93 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// 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. - -#ifndef GVISOR_TEST_UTIL_THREAD_UTIL_H_ -#define GVISOR_TEST_UTIL_THREAD_UTIL_H_ - -#include <pthread.h> -#ifdef __linux__ -#include <sys/syscall.h> -#endif -#include <unistd.h> - -#include <functional> -#include <utility> - -#include "test/util/logging.h" - -namespace gvisor { -namespace testing { - -// ScopedThread is a minimal wrapper around pthreads. -// -// This is used in lieu of more complex mechanisms because it provides very -// predictable behavior (no messing with timers, etc.) The thread will -// automatically joined when it is destructed (goes out of scope), but can be -// joined manually as well. -class ScopedThread { - public: - // Constructs a thread that executes f exactly once. - explicit ScopedThread(std::function<void*()> f) : f_(std::move(f)) { - CreateThread(); - } - - explicit ScopedThread(const std::function<void()>& f) { - f_ = [=] { - f(); - return nullptr; - }; - CreateThread(); - } - - ScopedThread(const ScopedThread& other) = delete; - ScopedThread& operator=(const ScopedThread& other) = delete; - - // Joins the thread. - ~ScopedThread() { Join(); } - - // Waits until this thread has finished executing. Join is idempotent and may - // be called multiple times, however Join itself is not thread-safe. - void* Join() { - if (!joined_) { - TEST_PCHECK(pthread_join(pt_, &retval_) == 0); - joined_ = true; - } - return retval_; - } - - private: - void CreateThread() { - TEST_PCHECK_MSG(pthread_create( - &pt_, /* attr = */ nullptr, - +[](void* arg) -> void* { - return static_cast<ScopedThread*>(arg)->f_(); - }, - this) == 0, - "thread creation failed"); - } - - std::function<void*()> f_; - pthread_t pt_; - bool joined_ = false; - void* retval_ = nullptr; -}; - -#ifdef __linux__ -inline pid_t gettid() { return syscall(SYS_gettid); } -#endif - -} // namespace testing -} // namespace gvisor - -#endif // GVISOR_TEST_UTIL_THREAD_UTIL_H_ |