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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /js/src/threading/LockGuard.h
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--js/src/threading/LockGuard.h45
1 files changed, 45 insertions, 0 deletions
diff --git a/js/src/threading/LockGuard.h b/js/src/threading/LockGuard.h
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+++ b/js/src/threading/LockGuard.h
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+/* -*- 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 <typename Mutex>
+class MOZ_RAII UnlockGuard;
+
+template <typename Mutex>
+class MOZ_RAII LockGuard {
+ friend class UnlockGuard<Mutex>;
+ friend class ConditionVariable;
+ Mutex& lock;
+
+ public:
+ explicit LockGuard(Mutex& aLock) : lock(aLock) { lock.lock(); }
+ ~LockGuard() { lock.unlock(); }
+
+ LockGuard(const LockGuard& other) = delete;
+};
+
+template <typename Mutex>
+class MOZ_RAII UnlockGuard {
+ Mutex& lock;
+
+ public:
+ explicit UnlockGuard(LockGuard<Mutex>& aGuard) : lock(aGuard.lock) {
+ lock.unlock();
+ }
+ ~UnlockGuard() { lock.lock(); }
+
+ UnlockGuard(const UnlockGuard& other) = delete;
+};
+
+} // namespace js
+
+#endif // threading_LockGuard_h