mirror of
https://github.com/Bareflank/hypervisor
synced 2026-08-17 06:23:04 -04:00
6daaff26e5
This patch: - Completes all of the unit tests for the VMM - Completes all of the unit tests for the syscall library - Compleses all of the unit tests for the runtime library - Completes all of the unit tests for the lib library - Fixes a number of bugs identified during testing.
86 lines
2.9 KiB
C++
86 lines
2.9 KiB
C++
/// @copyright
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/// Copyright (C) 2020 Assured Information Security, Inc.
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///
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/// @copyright
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/// Permission is hereby granted, free of charge, to any person obtaining a copy
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/// of this software and associated documentation files (the "Software"), to deal
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/// in the Software without restriction, including without limitation the rights
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/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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/// copies of the Software, and to permit persons to whom the Software is
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/// furnished to do so, subject to the following conditions:
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///
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/// @copyright
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/// The above copyright notice and this permission notice shall be included in
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/// all copies or substantial portions of the Software.
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///
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/// @copyright
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/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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/// SOFTWARE.
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#ifndef MOCK_BASIC_SPINLOCK_T_HPP
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#define MOCK_BASIC_SPINLOCK_T_HPP
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#include <bsl/discard.hpp>
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namespace lib
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{
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/// <!-- description -->
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/// @brief Implements a mocked version of basic_spinlock_t
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///
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/// <!-- notes -->
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/// @note Implements a basic_spinlock_t. Unlike the std::lock_guard_t
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/// this lock is aware of which PP has acquired the lock. If the same
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/// PP attempts to acquire the lock, the lock is ignored, and a
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/// warning is outputted.
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///
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class basic_spinlock_t final
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{
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/// @brief stores whether or not the spin lock is locked.
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bool m_flag{};
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public:
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/// <!-- description -->
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/// @brief Locks the basic_spinlock_t. This will not return until the
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/// basic_spinlock_t can be successfully acquired.
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///
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/// <!-- inputs/outputs -->
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/// @tparam TLS_TYPE the type of TLS block to use
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/// @param tls the current TLS block
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///
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template<typename TLS_TYPE>
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constexpr void
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lock(TLS_TYPE const &tls) noexcept
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{
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bsl::discard(tls);
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m_flag = true;
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}
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/// <!-- description -->
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/// @brief Unlocks the basic_spinlock_t.
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///
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constexpr void
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unlock() noexcept
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{
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m_flag = false;
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}
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/// <!-- description -->
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/// @brief Returns true if the basic_spinlock_t is locked
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///
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/// <!-- inputs/outputs -->
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/// @return Returns true if the basic_spinlock_t is locked
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///
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[[nodiscard]] constexpr auto
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is_locked() const noexcept -> bool
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{
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return m_flag;
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}
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};
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}
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#endif
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