diff options
Diffstat (limited to 'core/safe_refcount.cpp')
| -rw-r--r-- | core/safe_refcount.cpp | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/core/safe_refcount.cpp b/core/safe_refcount.cpp deleted file mode 100644 index d5ee778ef7..0000000000 --- a/core/safe_refcount.cpp +++ /dev/null @@ -1,161 +0,0 @@ -/*************************************************************************/ -/* safe_refcount.cpp */ -/*************************************************************************/ -/* This file is part of: */ -/* GODOT ENGINE */ -/* https://godotengine.org */ -/*************************************************************************/ -/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ -/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ -/* */ -/* Permission is hereby granted, free of charge, to any person obtaining */ -/* a copy of this software and associated documentation files (the */ -/* "Software"), to deal in the Software without restriction, including */ -/* without limitation the rights to use, copy, modify, merge, publish, */ -/* distribute, sublicense, and/or sell copies of the Software, and to */ -/* permit persons to whom the Software is furnished to do so, subject to */ -/* the following conditions: */ -/* */ -/* The above copyright notice and this permission notice shall be */ -/* included in all copies or substantial portions of the Software. */ -/* */ -/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ -/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ -/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ -/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ -/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ -/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ -/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ -/*************************************************************************/ - -#include "safe_refcount.h" - -#if defined(_MSC_VER) - -/* Implementation for MSVC-Windows */ - -// don't pollute my namespace! -#include <windows.h> - -#define ATOMIC_CONDITIONAL_INCREMENT_BODY(m_pw, m_win_type, m_win_cmpxchg, m_cpp_type) \ - /* try to increment until it actually works */ \ - /* taken from boost */ \ - while (true) { \ - m_cpp_type tmp = static_cast<m_cpp_type const volatile &>(*(m_pw)); \ - if (tmp == 0) { \ - return 0; /* if zero, can't add to it anymore */ \ - } \ - if (m_win_cmpxchg((m_win_type volatile *)(m_pw), tmp + 1, tmp) == tmp) { \ - return tmp + 1; \ - } \ - } - -#define ATOMIC_EXCHANGE_IF_GREATER_BODY(m_pw, m_val, m_win_type, m_win_cmpxchg, m_cpp_type) \ - while (true) { \ - m_cpp_type tmp = static_cast<m_cpp_type const volatile &>(*(m_pw)); \ - if (tmp >= m_val) { \ - return tmp; /* already greater, or equal */ \ - } \ - if (m_win_cmpxchg((m_win_type volatile *)(m_pw), m_val, tmp) == tmp) { \ - return m_val; \ - } \ - } - -_ALWAYS_INLINE_ uint32_t _atomic_conditional_increment_impl(volatile uint32_t *pw) { - ATOMIC_CONDITIONAL_INCREMENT_BODY(pw, LONG, InterlockedCompareExchange, uint32_t); -} - -_ALWAYS_INLINE_ uint32_t _atomic_decrement_impl(volatile uint32_t *pw) { - return InterlockedDecrement((LONG volatile *)pw); -} - -_ALWAYS_INLINE_ uint32_t _atomic_increment_impl(volatile uint32_t *pw) { - return InterlockedIncrement((LONG volatile *)pw); -} - -_ALWAYS_INLINE_ uint32_t _atomic_sub_impl(volatile uint32_t *pw, volatile uint32_t val) { - return InterlockedExchangeAdd((LONG volatile *)pw, -(int32_t)val) - val; -} - -_ALWAYS_INLINE_ uint32_t _atomic_add_impl(volatile uint32_t *pw, volatile uint32_t val) { - return InterlockedAdd((LONG volatile *)pw, val); -} - -_ALWAYS_INLINE_ uint32_t _atomic_exchange_if_greater_impl(volatile uint32_t *pw, volatile uint32_t val) { - ATOMIC_EXCHANGE_IF_GREATER_BODY(pw, val, LONG, InterlockedCompareExchange, uint32_t); -} - -_ALWAYS_INLINE_ uint64_t _atomic_conditional_increment_impl(volatile uint64_t *pw) { - ATOMIC_CONDITIONAL_INCREMENT_BODY(pw, LONGLONG, InterlockedCompareExchange64, uint64_t); -} - -_ALWAYS_INLINE_ uint64_t _atomic_decrement_impl(volatile uint64_t *pw) { - return InterlockedDecrement64((LONGLONG volatile *)pw); -} - -_ALWAYS_INLINE_ uint64_t _atomic_increment_impl(volatile uint64_t *pw) { - return InterlockedIncrement64((LONGLONG volatile *)pw); -} - -_ALWAYS_INLINE_ uint64_t _atomic_sub_impl(volatile uint64_t *pw, volatile uint64_t val) { - return InterlockedExchangeAdd64((LONGLONG volatile *)pw, -(int64_t)val) - val; -} - -_ALWAYS_INLINE_ uint64_t _atomic_add_impl(volatile uint64_t *pw, volatile uint64_t val) { - return InterlockedAdd64((LONGLONG volatile *)pw, val); -} - -_ALWAYS_INLINE_ uint64_t _atomic_exchange_if_greater_impl(volatile uint64_t *pw, volatile uint64_t val) { - ATOMIC_EXCHANGE_IF_GREATER_BODY(pw, val, LONGLONG, InterlockedCompareExchange64, uint64_t); -} - -// The actual advertised functions; they'll call the right implementation - -uint32_t atomic_conditional_increment(volatile uint32_t *pw) { - return _atomic_conditional_increment_impl(pw); -} - -uint32_t atomic_decrement(volatile uint32_t *pw) { - return _atomic_decrement_impl(pw); -} - -uint32_t atomic_increment(volatile uint32_t *pw) { - return _atomic_increment_impl(pw); -} - -uint32_t atomic_sub(volatile uint32_t *pw, volatile uint32_t val) { - return _atomic_sub_impl(pw, val); -} - -uint32_t atomic_add(volatile uint32_t *pw, volatile uint32_t val) { - return _atomic_add_impl(pw, val); -} - -uint32_t atomic_exchange_if_greater(volatile uint32_t *pw, volatile uint32_t val) { - return _atomic_exchange_if_greater_impl(pw, val); -} - -uint64_t atomic_conditional_increment(volatile uint64_t *pw) { - return _atomic_conditional_increment_impl(pw); -} - -uint64_t atomic_decrement(volatile uint64_t *pw) { - return _atomic_decrement_impl(pw); -} - -uint64_t atomic_increment(volatile uint64_t *pw) { - return _atomic_increment_impl(pw); -} - -uint64_t atomic_sub(volatile uint64_t *pw, volatile uint64_t val) { - return _atomic_sub_impl(pw, val); -} - -uint64_t atomic_add(volatile uint64_t *pw, volatile uint64_t val) { - return _atomic_add_impl(pw, val); -} - -uint64_t atomic_exchange_if_greater(volatile uint64_t *pw, volatile uint64_t val) { - return _atomic_exchange_if_greater_impl(pw, val); -} -#endif |