1 files changed, 0 insertions, 218 deletions
diff --git a/include/google/protobuf/stubs/mutex.h b/include/google/protobuf/stubs/mutex.h
deleted file mode 100644
index c4599913be..0000000000
--- a/include/google/protobuf/stubs/mutex.h
+++ /dev/null
@@ -1,218 +0,0 @@
-// Copyright (c) 2006, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#ifndef GOOGLE_PROTOBUF_STUBS_MUTEX_H_
-#define GOOGLE_PROTOBUF_STUBS_MUTEX_H_
-
-#include <mutex>
-
-#ifdef GOOGLE_PROTOBUF_SUPPORT_WINDOWS_XP
-
-#include <windows.h>
-
-// GetMessage conflicts with GeneratedMessageReflection::GetMessage().
-#ifdef GetMessage
-#undef GetMessage
-#endif
-
-#endif
-
-#include <google/protobuf/stubs/macros.h>
-
-// Define thread-safety annotations for use below, if we are building with
-// Clang.
-#if defined(__clang__) && !defined(SWIG)
-#define GOOGLE_PROTOBUF_ACQUIRE(...) \
-  __attribute__((acquire_capability(__VA_ARGS__)))
-#define GOOGLE_PROTOBUF_RELEASE(...) \
-  __attribute__((release_capability(__VA_ARGS__)))
-#define GOOGLE_PROTOBUF_SCOPED_CAPABILITY __attribute__((scoped_lockable))
-#define GOOGLE_PROTOBUF_CAPABILITY(x) __attribute__((capability(x)))
-#else
-#define GOOGLE_PROTOBUF_ACQUIRE(...)
-#define GOOGLE_PROTOBUF_RELEASE(...)
-#define GOOGLE_PROTOBUF_SCOPED_CAPABILITY
-#define GOOGLE_PROTOBUF_CAPABILITY(x)
-#endif
-
-#include <google/protobuf/port_def.inc>
-
-// ===================================================================
-// emulates google3/base/mutex.h
-namespace google {
-namespace protobuf {
-namespace internal {
-
-#define GOOGLE_PROTOBUF_LINKER_INITIALIZED
-
-#ifdef GOOGLE_PROTOBUF_SUPPORT_WINDOWS_XP
-
-// This class is a lightweight replacement for std::mutex on Windows platforms.
-// std::mutex does not work on Windows XP SP2 with the latest VC++ libraries,
-// because it utilizes the Concurrency Runtime that is only supported on Windows
-// XP SP3 and above.
-class PROTOBUF_EXPORT CriticalSectionLock {
- public:
-  CriticalSectionLock() { InitializeCriticalSection(&critical_section_); }
-  ~CriticalSectionLock() { DeleteCriticalSection(&critical_section_); }
-  void lock() { EnterCriticalSection(&critical_section_); }
-  void unlock() { LeaveCriticalSection(&critical_section_); }
-
- private:
-  CRITICAL_SECTION critical_section_;
-
-  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(CriticalSectionLock);
-};
-
-#endif
-
-// In MSVC std::mutex does not have a constexpr constructor.
-// This wrapper makes the constructor constexpr.
-template <typename T>
-class CallOnceInitializedMutex {
- public:
-  constexpr CallOnceInitializedMutex() : flag_{}, buf_{} {}
-  ~CallOnceInitializedMutex() { get().~T(); }
-
-  void lock() { get().lock(); }
-  void unlock() { get().unlock(); }
-
- private:
-  T& get() {
-    std::call_once(flag_, [&] { ::new (static_cast<void*>(&buf_)) T(); });
-    return reinterpret_cast<T&>(buf_);
-  }
-
-  std::once_flag flag_;
-  alignas(T) char buf_[sizeof(T)];
-};
-
-// Mutex is a natural type to wrap. As both google and other organization have
-// specialized mutexes. gRPC also provides an injection mechanism for custom
-// mutexes.
-class GOOGLE_PROTOBUF_CAPABILITY("mutex") PROTOBUF_EXPORT WrappedMutex {
- public:
-#if defined(__QNX__)
-  constexpr WrappedMutex() = default;
-#else
-  constexpr WrappedMutex() {}
-#endif
-  void Lock() GOOGLE_PROTOBUF_ACQUIRE() { mu_.lock(); }
-  void Unlock() GOOGLE_PROTOBUF_RELEASE() { mu_.unlock(); }
-  // Crash if this Mutex is not held exclusively by this thread.
-  // May fail to crash when it should; will never crash when it should not.
-  void AssertHeld() const {}
-
- private:
-#if defined(GOOGLE_PROTOBUF_SUPPORT_WINDOWS_XP)
-  CallOnceInitializedMutex<CriticalSectionLock> mu_{};
-#elif defined(_WIN32)
-  CallOnceInitializedMutex<std::mutex> mu_{};
-#else
-  std::mutex mu_{};
-#endif
-};
-
-using Mutex = WrappedMutex;
-
-// MutexLock(mu) acquires mu when constructed and releases it when destroyed.
-class GOOGLE_PROTOBUF_SCOPED_CAPABILITY PROTOBUF_EXPORT MutexLock {
- public:
-  explicit MutexLock(Mutex* mu) GOOGLE_PROTOBUF_ACQUIRE(mu) : mu_(mu) {
-    this->mu_->Lock();
-  }
-  ~MutexLock() GOOGLE_PROTOBUF_RELEASE() { this->mu_->Unlock(); }
-
- private:
-  Mutex *const mu_;
-  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(MutexLock);
-};
-
-// TODO(kenton):  Implement these?  Hard to implement portably.
-typedef MutexLock ReaderMutexLock;
-typedef MutexLock WriterMutexLock;
-
-// MutexLockMaybe is like MutexLock, but is a no-op when mu is nullptr.
-class PROTOBUF_EXPORT MutexLockMaybe {
- public:
-  explicit MutexLockMaybe(Mutex *mu) :
-    mu_(mu) { if (this->mu_ != nullptr) { this->mu_->Lock(); } }
-  ~MutexLockMaybe() { if (this->mu_ != nullptr) { this->mu_->Unlock(); } }
- private:
-  Mutex *const mu_;
-  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(MutexLockMaybe);
-};
-
-#if defined(GOOGLE_PROTOBUF_NO_THREADLOCAL)
-template<typename T>
-class ThreadLocalStorage {
- public:
-  ThreadLocalStorage() {
-    pthread_key_create(&key_, &ThreadLocalStorage::Delete);
-  }
-  ~ThreadLocalStorage() {
-    pthread_key_delete(key_);
-  }
-  T* Get() {
-    T* result = static_cast<T*>(pthread_getspecific(key_));
-    if (result == nullptr) {
-      result = new T();
-      pthread_setspecific(key_, result);
-    }
-    return result;
-  }
- private:
-  static void Delete(void* value) {
-    delete static_cast<T*>(value);
-  }
-  pthread_key_t key_;
-
-  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ThreadLocalStorage);
-};
-#endif
-
-}  // namespace internal
-
-// We made these internal so that they would show up as such in the docs,
-// but we don't want to stick "internal::" in front of them everywhere.
-using internal::Mutex;
-using internal::MutexLock;
-using internal::ReaderMutexLock;
-using internal::WriterMutexLock;
-using internal::MutexLockMaybe;
-
-}  // namespace protobuf
-}  // namespace google
-
-#undef GOOGLE_PROTOBUF_ACQUIRE
-#undef GOOGLE_PROTOBUF_RELEASE
-
-#include <google/protobuf/port_undef.inc>
-
-#endif  // GOOGLE_PROTOBUF_STUBS_MUTEX_H_