From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- mozglue/misc/PlatformMutex.h | 66 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 mozglue/misc/PlatformMutex.h (limited to 'mozglue/misc/PlatformMutex.h') diff --git a/mozglue/misc/PlatformMutex.h b/mozglue/misc/PlatformMutex.h new file mode 100644 index 0000000000..ac5459cf10 --- /dev/null +++ b/mozglue/misc/PlatformMutex.h @@ -0,0 +1,66 @@ +/* -*- 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 mozilla_PlatformMutex_h +#define mozilla_PlatformMutex_h + +#include + +#include "mozilla/Attributes.h" +#include "mozilla/Types.h" + +#if !defined(XP_WIN) && !defined(__wasi__) +# include +#endif + +namespace mozilla { + +namespace detail { + +class ConditionVariableImpl; + +class MutexImpl { + public: + struct PlatformData; + + explicit MFBT_API MutexImpl(); + MFBT_API ~MutexImpl(); + + protected: + MFBT_API void lock(); + MFBT_API void unlock(); + // We have a separate, forwarding API so internal uses don't have to go + // through the PLT. + MFBT_API bool tryLock(); + + private: + MutexImpl(const MutexImpl&) = delete; + void operator=(const MutexImpl&) = delete; + MutexImpl(MutexImpl&&) = delete; + void operator=(MutexImpl&&) = delete; + bool operator==(const MutexImpl& rhs) = delete; + + void mutexLock(); + bool mutexTryLock(); + + PlatformData* platformData(); + +#if !defined(XP_WIN) && !defined(__wasi__) + void* platformData_[sizeof(pthread_mutex_t) / sizeof(void*)]; + static_assert(sizeof(pthread_mutex_t) / sizeof(void*) != 0 && + sizeof(pthread_mutex_t) % sizeof(void*) == 0, + "pthread_mutex_t must have pointer alignment"); +#else + void* platformData_[6]; +#endif + + friend class mozilla::detail::ConditionVariableImpl; +}; + +} // namespace detail + +} // namespace mozilla +#endif // mozilla_PlatformMutex_h -- cgit v1.2.3