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-rw-r--r--core/safe_refcount.cpp287
-rw-r--r--core/safe_refcount.h229
2 files changed, 211 insertions, 305 deletions
diff --git a/core/safe_refcount.cpp b/core/safe_refcount.cpp
deleted file mode 100644
index c330a983a7..0000000000
--- a/core/safe_refcount.cpp
+++ /dev/null
@@ -1,287 +0,0 @@
-/*************************************************************************/
-/* safe_refcount.cpp */
-/*************************************************************************/
-/* This file is part of: */
-/* GODOT ENGINE */
-/* https://godotengine.org */
-/*************************************************************************/
-/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
-/* Copyright (c) 2014-2017 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"
-
-// Atomic functions, these are used for multithread safe reference counters!
-
-#ifdef NO_THREADS
-
-/* Bogus implementation unaware of multiprocessing */
-
-template <class T>
-static _ALWAYS_INLINE_ T _atomic_conditional_increment_impl(register T *pw) {
-
- if (*pw == 0)
- return 0;
-
- (*pw)++;
-
- return *pw;
-}
-
-template <class T>
-static _ALWAYS_INLINE_ T _atomic_decrement_impl(register T *pw) {
-
- (*pw)--;
-
- return *pw;
-}
-
-template <class T>
-static _ALWAYS_INLINE_ T _atomic_increment_impl(register T *pw) {
-
- (*pw)++;
-
- return *pw;
-}
-
-template <class T>
-static _ALWAYS_INLINE_ T _atomic_sub_impl(register T *pw, register T val) {
-
- (*pw) -= val;
-
- return *pw;
-}
-
-template <class T>
-static _ALWAYS_INLINE_ T _atomic_add_impl(register T *pw, register T val) {
-
- (*pw) += val;
-
- return *pw;
-}
-
-template <class T>
-static _ALWAYS_INLINE_ T _atomic_exchange_if_greater_impl(register T *pw, register T val) {
-
- if (val > *pw)
- *pw = val;
-
- return *pw;
-}
-
-#elif defined(__GNUC__)
-
-/* Implementation for GCC & Clang */
-
-// GCC guarantees atomic intrinsics for sizes of 1, 2, 4 and 8 bytes.
-// Clang states it supports GCC atomic builtins.
-
-template <class T>
-static _ALWAYS_INLINE_ T _atomic_conditional_increment_impl(register T *pw) {
-
- while (true) {
- T tmp = static_cast<T const volatile &>(*pw);
- if (tmp == 0)
- return 0; // if zero, can't add to it anymore
- if (__sync_val_compare_and_swap(pw, tmp, tmp + 1) == tmp)
- return tmp + 1;
- }
-}
-
-template <class T>
-static _ALWAYS_INLINE_ T _atomic_decrement_impl(register T *pw) {
-
- return __sync_sub_and_fetch(pw, 1);
-}
-
-template <class T>
-static _ALWAYS_INLINE_ T _atomic_increment_impl(register T *pw) {
-
- return __sync_add_and_fetch(pw, 1);
-}
-
-template <class T>
-static _ALWAYS_INLINE_ T _atomic_sub_impl(register T *pw, register T val) {
-
- return __sync_sub_and_fetch(pw, val);
-}
-
-template <class T>
-static _ALWAYS_INLINE_ T _atomic_add_impl(register T *pw, register T val) {
-
- return __sync_add_and_fetch(pw, val);
-}
-
-template <class T>
-static _ALWAYS_INLINE_ T _atomic_exchange_if_greater_impl(register T *pw, register T val) {
-
- while (true) {
- T tmp = static_cast<T const volatile &>(*pw);
- if (tmp >= val)
- return tmp; // already greater, or equal
- if (__sync_val_compare_and_swap(pw, tmp, val) == tmp)
- return val;
- }
-}
-
-#elif 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; \
- }
-
-static _ALWAYS_INLINE_ uint32_t _atomic_conditional_increment_impl(register uint32_t *pw) {
-
- ATOMIC_CONDITIONAL_INCREMENT_BODY(pw, LONG, InterlockedCompareExchange, uint32_t)
-}
-
-static _ALWAYS_INLINE_ uint32_t _atomic_decrement_impl(register uint32_t *pw) {
-
- return InterlockedDecrement((LONG volatile *)pw);
-}
-
-static _ALWAYS_INLINE_ uint32_t _atomic_increment_impl(register uint32_t *pw) {
-
- return InterlockedIncrement((LONG volatile *)pw);
-}
-
-static _ALWAYS_INLINE_ uint32_t _atomic_sub_impl(register uint32_t *pw, register uint32_t val) {
-
- return InterlockedExchangeAdd((LONG volatile *)pw, -(int32_t)val) - val;
-}
-
-static _ALWAYS_INLINE_ uint32_t _atomic_add_impl(register uint32_t *pw, register uint32_t val) {
-
- return InterlockedAdd((LONG volatile *)pw, val);
-}
-
-static _ALWAYS_INLINE_ uint32_t _atomic_exchange_if_greater_impl(register uint32_t *pw, register uint32_t val) {
-
- ATOMIC_EXCHANGE_IF_GREATER_BODY(pw, val, LONG, InterlockedCompareExchange, uint32_t)
-}
-
-static _ALWAYS_INLINE_ uint64_t _atomic_conditional_increment_impl(register uint64_t *pw) {
-
- ATOMIC_CONDITIONAL_INCREMENT_BODY(pw, LONGLONG, InterlockedCompareExchange64, uint64_t)
-}
-
-static _ALWAYS_INLINE_ uint64_t _atomic_decrement_impl(register uint64_t *pw) {
-
- return InterlockedDecrement64((LONGLONG volatile *)pw);
-}
-
-static _ALWAYS_INLINE_ uint64_t _atomic_increment_impl(register uint64_t *pw) {
-
- return InterlockedIncrement64((LONGLONG volatile *)pw);
-}
-
-static _ALWAYS_INLINE_ uint64_t _atomic_sub_impl(register uint64_t *pw, register uint64_t val) {
-
- return InterlockedExchangeAdd64((LONGLONG volatile *)pw, -(int64_t)val) - val;
-}
-
-static _ALWAYS_INLINE_ uint64_t _atomic_add_impl(register uint64_t *pw, register uint64_t val) {
-
- return InterlockedAdd64((LONGLONG volatile *)pw, val);
-}
-
-static _ALWAYS_INLINE_ uint64_t _atomic_exchange_if_greater_impl(register uint64_t *pw, register uint64_t val) {
-
- ATOMIC_EXCHANGE_IF_GREATER_BODY(pw, val, LONGLONG, InterlockedCompareExchange64, uint64_t)
-}
-
-#else
-
-//no threads supported?
-#error Must provide atomic functions for this platform or compiler!
-
-#endif
-
-// The actual advertised functions; they'll call the right implementation
-
-uint32_t atomic_conditional_increment(register uint32_t *counter) {
- return _atomic_conditional_increment_impl(counter);
-}
-
-uint32_t atomic_decrement(register uint32_t *pw) {
- return _atomic_decrement_impl(pw);
-}
-
-uint32_t atomic_increment(register uint32_t *pw) {
- return _atomic_increment_impl(pw);
-}
-
-uint32_t atomic_sub(register uint32_t *pw, register uint32_t val) {
- return _atomic_sub_impl(pw, val);
-}
-
-uint32_t atomic_add(register uint32_t *pw, register uint32_t val) {
- return _atomic_add_impl(pw, val);
-}
-
-uint32_t atomic_exchange_if_greater(register uint32_t *pw, register uint32_t val) {
- return _atomic_exchange_if_greater_impl(pw, val);
-}
-
-uint64_t atomic_conditional_increment(register uint64_t *counter) {
- return _atomic_conditional_increment_impl(counter);
-}
-
-uint64_t atomic_decrement(register uint64_t *pw) {
- return _atomic_decrement_impl(pw);
-}
-
-uint64_t atomic_increment(register uint64_t *pw) {
- return _atomic_increment_impl(pw);
-}
-
-uint64_t atomic_sub(register uint64_t *pw, register uint64_t val) {
- return _atomic_sub_impl(pw, val);
-}
-
-uint64_t atomic_add(register uint64_t *pw, register uint64_t val) {
- return _atomic_add_impl(pw, val);
-}
-
-uint64_t atomic_exchange_if_greater(register uint64_t *pw, register uint64_t val) {
- return _atomic_exchange_if_greater_impl(pw, val);
-}
diff --git a/core/safe_refcount.h b/core/safe_refcount.h
index 802d84cccc..05126cc319 100644
--- a/core/safe_refcount.h
+++ b/core/safe_refcount.h
@@ -36,19 +36,212 @@
#include "platform_config.h"
#include "typedefs.h"
-uint32_t atomic_conditional_increment(register uint32_t *counter);
-uint32_t atomic_decrement(register uint32_t *pw);
-uint32_t atomic_increment(register uint32_t *pw);
-uint32_t atomic_sub(register uint32_t *pw, register uint32_t val);
-uint32_t atomic_add(register uint32_t *pw, register uint32_t val);
-uint32_t atomic_exchange_if_greater(register uint32_t *pw, register uint32_t val);
-
-uint64_t atomic_conditional_increment(register uint64_t *counter);
-uint64_t atomic_decrement(register uint64_t *pw);
-uint64_t atomic_increment(register uint64_t *pw);
-uint64_t atomic_sub(register uint64_t *pw, register uint64_t val);
-uint64_t atomic_add(register uint64_t *pw, register uint64_t val);
-uint64_t atomic_exchange_if_greater(register uint64_t *pw, register uint64_t val);
+// Atomic functions, these are used for multithread safe reference counters!
+
+#ifdef NO_THREADS
+
+/* Bogus implementation unaware of multiprocessing */
+
+template <class T>
+static _ALWAYS_INLINE_ T atomic_conditional_increment(register T *pw) {
+
+ if (*pw == 0)
+ return 0;
+
+ (*pw)++;
+
+ return *pw;
+}
+
+template <class T>
+static _ALWAYS_INLINE_ T atomic_decrement(register T *pw) {
+
+ (*pw)--;
+
+ return *pw;
+}
+
+template <class T>
+static _ALWAYS_INLINE_ T atomic_increment(register T *pw) {
+
+ (*pw)++;
+
+ return *pw;
+}
+
+template <class T, class V>
+static _ALWAYS_INLINE_ T atomic_sub(register T *pw, register V val) {
+
+ (*pw) -= val;
+
+ return *pw;
+}
+
+template <class T, class V>
+static _ALWAYS_INLINE_ T atomic_add(register T *pw, register V val) {
+
+ (*pw) += val;
+
+ return *pw;
+}
+
+template <class T, class V>
+static _ALWAYS_INLINE_ T atomic_exchange_if_greater(register T *pw, register V val) {
+
+ if (val > *pw)
+ *pw = val;
+
+ return *pw;
+}
+
+#elif defined(__GNUC__)
+
+/* Implementation for GCC & Clang */
+
+// GCC guarantees atomic intrinsics for sizes of 1, 2, 4 and 8 bytes.
+// Clang states it supports GCC atomic builtins.
+
+template <class T>
+static _ALWAYS_INLINE_ T atomic_conditional_increment(register T *pw) {
+
+ while (true) {
+ T tmp = static_cast<T const volatile &>(*pw);
+ if (tmp == 0)
+ return 0; // if zero, can't add to it anymore
+ if (__sync_val_compare_and_swap(pw, tmp, tmp + 1) == tmp)
+ return tmp + 1;
+ }
+}
+
+template <class T>
+static _ALWAYS_INLINE_ T atomic_decrement(register T *pw) {
+
+ return __sync_sub_and_fetch(pw, 1);
+}
+
+template <class T>
+static _ALWAYS_INLINE_ T atomic_increment(register T *pw) {
+
+ return __sync_add_and_fetch(pw, 1);
+}
+
+template <class T, class V>
+static _ALWAYS_INLINE_ T atomic_sub(register T *pw, register V val) {
+
+ return __sync_sub_and_fetch(pw, val);
+}
+
+template <class T, class V>
+static _ALWAYS_INLINE_ T atomic_add(register T *pw, register V val) {
+
+ return __sync_add_and_fetch(pw, val);
+}
+
+template <class T, class V>
+static _ALWAYS_INLINE_ T atomic_exchange_if_greater(register T *pw, register V val) {
+
+ while (true) {
+ T tmp = static_cast<T const volatile &>(*pw);
+ if (tmp >= val)
+ return tmp; // already greater, or equal
+ if (__sync_val_compare_and_swap(pw, tmp, val) == tmp)
+ return val;
+ }
+}
+
+#elif 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; \
+ }
+
+static _ALWAYS_INLINE_ uint32_t atomic_conditional_increment(register uint32_t *pw) {
+
+ ATOMIC_CONDITIONAL_INCREMENT_BODY(pw, LONG, InterlockedCompareExchange, uint32_t)
+}
+
+static _ALWAYS_INLINE_ uint32_t atomic_decrement(register uint32_t *pw) {
+
+ return InterlockedDecrement((LONG volatile *)pw);
+}
+
+static _ALWAYS_INLINE_ uint32_t atomic_increment(register uint32_t *pw) {
+
+ return InterlockedIncrement((LONG volatile *)pw);
+}
+
+static _ALWAYS_INLINE_ uint32_t atomic_sub(register uint32_t *pw, register uint32_t val) {
+
+ return InterlockedExchangeAdd((LONG volatile *)pw, -(int32_t)val) - val;
+}
+
+static _ALWAYS_INLINE_ uint32_t atomic_add(register uint32_t *pw, register uint32_t val) {
+
+ return InterlockedAdd((LONG volatile *)pw, val);
+}
+
+static _ALWAYS_INLINE_ uint32_t atomic_exchange_if_greater(register uint32_t *pw, register uint32_t val) {
+
+ ATOMIC_EXCHANGE_IF_GREATER_BODY(pw, val, LONG, InterlockedCompareExchange, uint32_t)
+}
+
+static _ALWAYS_INLINE_ uint64_t atomic_conditional_increment(register uint64_t *pw) {
+
+ ATOMIC_CONDITIONAL_INCREMENT_BODY(pw, LONGLONG, InterlockedCompareExchange64, uint64_t)
+}
+
+static _ALWAYS_INLINE_ uint64_t atomic_decrement(register uint64_t *pw) {
+
+ return InterlockedDecrement64((LONGLONG volatile *)pw);
+}
+
+static _ALWAYS_INLINE_ uint64_t atomic_increment(register uint64_t *pw) {
+
+ return InterlockedIncrement64((LONGLONG volatile *)pw);
+}
+
+static _ALWAYS_INLINE_ uint64_t atomic_sub(register uint64_t *pw, register uint64_t val) {
+
+ return InterlockedExchangeAdd64((LONGLONG volatile *)pw, -(int64_t)val) - val;
+}
+
+static _ALWAYS_INLINE_ uint64_t atomic_add(register uint64_t *pw, register uint64_t val) {
+
+ return InterlockedAdd64((LONGLONG volatile *)pw, val);
+}
+
+static _ALWAYS_INLINE_ uint64_t atomic_exchange_if_greater(register uint64_t *pw, register uint64_t val) {
+
+ ATOMIC_EXCHANGE_IF_GREATER_BODY(pw, val, LONGLONG, InterlockedCompareExchange64, uint64_t)
+}
+
+#else
+
+//no threads supported?
+#error Must provide atomic functions for this platform or compiler!
+
+#endif
struct SafeRefCount {
@@ -57,17 +250,17 @@ struct SafeRefCount {
public:
// destroy() is called when weak_count_ drops to zero.
- bool ref() { //true on success
+ _ALWAYS_INLINE_ bool ref() { //true on success
return atomic_conditional_increment(&count) != 0;
}
- uint32_t refval() { //true on success
+ _ALWAYS_INLINE_ uint32_t refval() { //true on success
return atomic_conditional_increment(&count);
}
- bool unref() { // true if must be disposed of
+ _ALWAYS_INLINE_ bool unref() { // true if must be disposed of
if (atomic_decrement(&count) == 0) {
return true;
@@ -76,12 +269,12 @@ public:
return false;
}
- uint32_t get() const { // nothrow
+ _ALWAYS_INLINE_ uint32_t get() const { // nothrow
return count;
}
- void init(uint32_t p_value = 1) {
+ _ALWAYS_INLINE_ void init(uint32_t p_value = 1) {
count = p_value;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-12 17:41:19 +0000