1 files changed, 56 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/Support/Windows/Mutex.inc b/contrib/llvm-project/llvm/lib/Support/Windows/Mutex.inc
new file mode 100644
index 000000000000..b55b14febf2c
--- /dev/null
+++ b/contrib/llvm-project/llvm/lib/Support/Windows/Mutex.inc
@@ -0,0 +1,56 @@
+//===- llvm/Support/Win32/Mutex.inc - Win32 Mutex Implementation -*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the Win32 specific (non-pthread) Mutex class.
+//
+//===----------------------------------------------------------------------===//
+
+//===----------------------------------------------------------------------===//
+//=== WARNING: Implementation here must contain only generic Win32 code that
+//===          is guaranteed to work on *all* Win32 variants.
+//===----------------------------------------------------------------------===//
+
+#include "WindowsSupport.h"
+#include "llvm/Support/Mutex.h"
+
+namespace llvm {
+
+sys::MutexImpl::MutexImpl(bool /*recursive*/)
+{
+  data_ = new CRITICAL_SECTION;
+  InitializeCriticalSection((LPCRITICAL_SECTION)data_);
+}
+
+sys::MutexImpl::~MutexImpl()
+{
+  DeleteCriticalSection((LPCRITICAL_SECTION)data_);
+  delete (LPCRITICAL_SECTION)data_;
+  data_ = 0;
+}
+
+bool
+sys::MutexImpl::acquire()
+{
+  EnterCriticalSection((LPCRITICAL_SECTION)data_);
+  return true;
+}
+
+bool
+sys::MutexImpl::release()
+{
+  LeaveCriticalSection((LPCRITICAL_SECTION)data_);
+  return true;
+}
+
+bool
+sys::MutexImpl::tryacquire()
+{
+  return TryEnterCriticalSection((LPCRITICAL_SECTION)data_);
+}
+
+}