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authorGravatar misterg <misterg@google.com>2017-09-19 16:54:40 -0400
committerGravatar misterg <misterg@google.com>2017-09-19 16:54:40 -0400
commitc2e754829628d1e9b7a16b3389cfdace76950fdf (patch)
tree5a7f056f44e27c30e10025113b644f0b3b5801fc /absl/base/internal/spinlock_win32.inc
Initial Commit
Diffstat (limited to 'absl/base/internal/spinlock_win32.inc')
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1 files changed, 37 insertions, 0 deletions
diff --git a/absl/base/internal/spinlock_win32.inc b/absl/base/internal/spinlock_win32.inc
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+// Copyright 2017 The Abseil 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.
+//
+// This file is a Win32-specific part of spinlock_wait.cc
+
+#include <windows.h>
+#include <atomic>
+#include "absl/base/internal/scheduling_mode.h"
+
+extern "C" {
+
+void AbslInternalSpinLockDelay(std::atomic<uint32_t>* /* lock_word */,
+ uint32_t /* value */, int loop,
+ absl::base_internal::SchedulingMode /* mode */) {
+ if (loop == 0) {
+ } else if (loop == 1) {
+ Sleep(0);
+ } else {
+ Sleep(absl::base_internal::SpinLockSuggestedDelayNS(loop) / 1000000);
+ }
+}
+
+void AbslInternalSpinLockWake(std::atomic<uint32_t>* /* lock_word */,
+ bool /* all */) {}
+
+} // extern "C"