From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:32:43 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- js/src/threading/LockGuard.h | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 js/src/threading/LockGuard.h (limited to 'js/src/threading/LockGuard.h') diff --git a/js/src/threading/LockGuard.h b/js/src/threading/LockGuard.h new file mode 100644 index 0000000000..80647012b9 --- /dev/null +++ b/js/src/threading/LockGuard.h @@ -0,0 +1,43 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef threading_LockGuard_h +#define threading_LockGuard_h + +#include "mozilla/Attributes.h" + +namespace js { + +template +class MOZ_RAII UnlockGuard; + +template +class MOZ_RAII LockGuard { + friend class UnlockGuard; + friend class ConditionVariable; + Mutex& lock; + + public: + explicit LockGuard(Mutex& aLock) : lock(aLock) { lock.lock(); } + + ~LockGuard() { lock.unlock(); } +}; + +template +class MOZ_RAII UnlockGuard { + Mutex& lock; + + public: + explicit UnlockGuard(LockGuard& aGuard) : lock(aGuard.lock) { + lock.unlock(); + } + + ~UnlockGuard() { lock.lock(); } +}; + +} // namespace js + +#endif // threading_LockGuard_h -- cgit v1.2.3