compiler-rt/lib/scudo/standalone/condition_variable_linux.h

   1 //===-- condition_variable_linux.h ------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef SCUDO_CONDITION_VARIABLE_LINUX_H_
  10 #define SCUDO_CONDITION_VARIABLE_LINUX_H_
  11
  12 #include "platform.h"
  13
  14 #if SCUDO_LINUX
  15
  16 #include "atomic_helpers.h"
  17 #include "condition_variable_base.h"
  18 #include "thread_annotations.h"
  19
  20 namespace scudo {
  21
  22 class ConditionVariableLinux
  23     : public ConditionVariableBase<ConditionVariableLinux> {
  24 public:
  25   void notifyAllImpl(HybridMutex &M) REQUIRES(M);
  26
  27   void waitImpl(HybridMutex &M) REQUIRES(M);
  28
  29 private:
  30   u32 LastNotifyAll = 0;
  31   atomic_u32 Counter = {};
  32 };
  33
  34 } // namespace scudo
  35
  36 #endif // SCUDO_LINUX
  37
  38 #endif // SCUDO_CONDITION_VARIABLE_LINUX_H_