1 files changed, 144 insertions, 144 deletions
diff --git a/NorthstarDLL/include/internal/tsan_assist.h b/NorthstarDLL/include/internal/tsan_assist.h
index f8285b1d..d03152e3 100644
--- a/NorthstarDLL/include/internal/tsan_assist.h
+++ b/NorthstarDLL/include/internal/tsan_assist.h
@@ -1,144 +1,144 @@
-/*
- * Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
- *
- * Licensed under the Apache License 2.0 (the "License").  You may not use
- * this file except in compliance with the License.  You can obtain a copy
- * in the file LICENSE in the source distribution or at
- * https://www.openssl.org/source/license.html
- */
-
-/*
- * Contemporary compilers implement lock-free atomic memory access
- * primitives that facilitate writing "thread-opportunistic" or even real
- * multi-threading low-overhead code. "Thread-opportunistic" is when
- * exact result is not required, e.g. some statistics, or execution flow
- * doesn't have to be unambiguous. Simplest example is lazy "constant"
- * initialization when one can synchronize on variable itself, e.g.
- *
- * if (var == NOT_YET_INITIALIZED)
- *     var = function_returning_same_value();
- *
- * This does work provided that loads and stores are single-instruction
- * operations (and integer ones are on *all* supported platforms), but
- * it upsets Thread Sanitizer. Suggested solution is
- *
- * if (tsan_load(&var) == NOT_YET_INITIALIZED)
- *     tsan_store(&var, function_returning_same_value());
- *
- * Production machine code would be the same, so one can wonder why
- * bother. Having Thread Sanitizer accept "thread-opportunistic" code
- * allows to move on trouble-shooting real bugs.
- *
- * Resolving Thread Sanitizer nits was the initial purpose for this module,
- * but it was later extended with more nuanced primitives that are useful
- * even in "non-opportunistic" scenarios. Most notably verifying if a shared
- * structure is fully initialized and bypassing the initialization lock.
- * It's suggested to view macros defined in this module as "annotations" for
- * thread-safe lock-free code, "Thread-Safe ANnotations"...
- *
- * It's assumed that ATOMIC_{LONG|INT}_LOCK_FREE are assigned same value as
- * ATOMIC_POINTER_LOCK_FREE. And check for >= 2 ensures that corresponding
- * code is inlined. It should be noted that statistics counters become
- * accurate in such case.
- *
- * Special note about TSAN_QUALIFIER. It might be undesired to use it in
- * a shared header. Because whether operation on specific variable or member
- * is atomic or not might be irrelevant in other modules. In such case one
- * can use TSAN_QUALIFIER in cast specifically when it has to count.
- */
-
-#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L \
-    && !defined(__STDC_NO_ATOMICS__)
-# include <stdatomic.h>
-
-# if defined(ATOMIC_POINTER_LOCK_FREE) \
-          && ATOMIC_POINTER_LOCK_FREE >= 2
-#  define TSAN_QUALIFIER _Atomic
-#  define tsan_load(ptr) atomic_load_explicit((ptr), memory_order_relaxed)
-#  define tsan_store(ptr, val) atomic_store_explicit((ptr), (val), memory_order_relaxed)
-#  define tsan_counter(ptr) atomic_fetch_add_explicit((ptr), 1, memory_order_relaxed)
-#  define tsan_decr(ptr) atomic_fetch_add_explicit((ptr), -1, memory_order_relaxed)
-#  define tsan_ld_acq(ptr) atomic_load_explicit((ptr), memory_order_acquire)
-#  define tsan_st_rel(ptr, val) atomic_store_explicit((ptr), (val), memory_order_release)
-# endif
-
-#elif defined(__GNUC__) && defined(__ATOMIC_RELAXED)
-
-# if defined(__GCC_ATOMIC_POINTER_LOCK_FREE) \
-          && __GCC_ATOMIC_POINTER_LOCK_FREE >= 2
-#  define TSAN_QUALIFIER volatile
-#  define tsan_load(ptr) __atomic_load_n((ptr), __ATOMIC_RELAXED)
-#  define tsan_store(ptr, val) __atomic_store_n((ptr), (val), __ATOMIC_RELAXED)
-#  define tsan_counter(ptr) __atomic_fetch_add((ptr), 1, __ATOMIC_RELAXED)
-#  define tsan_decr(ptr) __atomic_fetch_add((ptr), -1, __ATOMIC_RELAXED)
-#  define tsan_ld_acq(ptr) __atomic_load_n((ptr), __ATOMIC_ACQUIRE)
-#  define tsan_st_rel(ptr, val) __atomic_store_n((ptr), (val), __ATOMIC_RELEASE)
-# endif
-
-#elif defined(_MSC_VER) && _MSC_VER>=1200 \
-      && (defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64) || \
-          defined(_M_ARM64) || (defined(_M_ARM) && _M_ARM >= 7 && !defined(_WIN32_WCE)))
-/*
- * There is subtle dependency on /volatile:<iso|ms> command-line option.
- * "ms" implies same semantic as memory_order_acquire for loads and
- * memory_order_release for stores, while "iso" - memory_order_relaxed for
- * either. Real complication is that defaults are different on x86 and ARM.
- * There is explanation for that, "ms" is backward compatible with earlier
- * compiler versions, while multi-processor ARM can be viewed as brand new
- * platform to MSC and its users, and with non-relaxed semantic taking toll
- * with additional instructions and penalties, it kind of makes sense to
- * default to "iso"...
- */
-# define TSAN_QUALIFIER volatile
-# if defined(_M_ARM) || defined(_M_ARM64)
-#  define _InterlockedExchangeAdd _InterlockedExchangeAdd_nf
-#  pragma intrinsic(_InterlockedExchangeAdd_nf)
-#  pragma intrinsic(__iso_volatile_load32, __iso_volatile_store32)
-#  ifdef _WIN64
-#   define _InterlockedExchangeAdd64 _InterlockedExchangeAdd64_nf
-#   pragma intrinsic(_InterlockedExchangeAdd64_nf)
-#   pragma intrinsic(__iso_volatile_load64, __iso_volatile_store64)
-#   define tsan_load(ptr) (sizeof(*(ptr)) == 8 ? __iso_volatile_load64(ptr) \
-                                               : __iso_volatile_load32(ptr))
-#   define tsan_store(ptr, val) (sizeof(*(ptr)) == 8 ? __iso_volatile_store64((ptr), (val)) \
-                                                     : __iso_volatile_store32((ptr), (val)))
-#  else
-#   define tsan_load(ptr) __iso_volatile_load32(ptr)
-#   define tsan_store(ptr, val) __iso_volatile_store32((ptr), (val))
-#  endif
-# else
-#  define tsan_load(ptr) (*(ptr))
-#  define tsan_store(ptr, val) (*(ptr) = (val))
-# endif
-# pragma intrinsic(_InterlockedExchangeAdd)
-# ifdef _WIN64
-#  pragma intrinsic(_InterlockedExchangeAdd64)
-#  define tsan_counter(ptr) (sizeof(*(ptr)) == 8 ? _InterlockedExchangeAdd64((ptr), 1) \
-                                                 : _InterlockedExchangeAdd((ptr), 1))
-#  define tsan_decr(ptr) (sizeof(*(ptr)) == 8 ? _InterlockedExchangeAdd64((ptr), -1) \
-                                                 : _InterlockedExchangeAdd((ptr), -1))
-# else
-#  define tsan_counter(ptr) _InterlockedExchangeAdd((ptr), 1)
-#  define tsan_decr(ptr) _InterlockedExchangeAdd((ptr), -1)
-# endif
-# if !defined(_ISO_VOLATILE)
-#  define tsan_ld_acq(ptr) (*(ptr))
-#  define tsan_st_rel(ptr, val) (*(ptr) = (val))
-# endif
-
-#endif
-
-#ifndef TSAN_QUALIFIER
-
-# define TSAN_QUALIFIER volatile
-# define tsan_load(ptr) (*(ptr))
-# define tsan_store(ptr, val) (*(ptr) = (val))
-# define tsan_counter(ptr) ((*(ptr))++)
-# define tsan_decr(ptr) ((*(ptr))--)
-/*
- * Lack of tsan_ld_acq and tsan_ld_rel means that compiler support is not
- * sophisticated enough to support them. Code that relies on them should be
- * protected with #ifdef tsan_ld_acq with locked fallback.
- */
-
-#endif
+/*
+ * Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/*
+ * Contemporary compilers implement lock-free atomic memory access
+ * primitives that facilitate writing "thread-opportunistic" or even real
+ * multi-threading low-overhead code. "Thread-opportunistic" is when
+ * exact result is not required, e.g. some statistics, or execution flow
+ * doesn't have to be unambiguous. Simplest example is lazy "constant"
+ * initialization when one can synchronize on variable itself, e.g.
+ *
+ * if (var == NOT_YET_INITIALIZED)
+ *     var = function_returning_same_value();
+ *
+ * This does work provided that loads and stores are single-instruction
+ * operations (and integer ones are on *all* supported platforms), but
+ * it upsets Thread Sanitizer. Suggested solution is
+ *
+ * if (tsan_load(&var) == NOT_YET_INITIALIZED)
+ *     tsan_store(&var, function_returning_same_value());
+ *
+ * Production machine code would be the same, so one can wonder why
+ * bother. Having Thread Sanitizer accept "thread-opportunistic" code
+ * allows to move on trouble-shooting real bugs.
+ *
+ * Resolving Thread Sanitizer nits was the initial purpose for this module,
+ * but it was later extended with more nuanced primitives that are useful
+ * even in "non-opportunistic" scenarios. Most notably verifying if a shared
+ * structure is fully initialized and bypassing the initialization lock.
+ * It's suggested to view macros defined in this module as "annotations" for
+ * thread-safe lock-free code, "Thread-Safe ANnotations"...
+ *
+ * It's assumed that ATOMIC_{LONG|INT}_LOCK_FREE are assigned same value as
+ * ATOMIC_POINTER_LOCK_FREE. And check for >= 2 ensures that corresponding
+ * code is inlined. It should be noted that statistics counters become
+ * accurate in such case.
+ *
+ * Special note about TSAN_QUALIFIER. It might be undesired to use it in
+ * a shared header. Because whether operation on specific variable or member
+ * is atomic or not might be irrelevant in other modules. In such case one
+ * can use TSAN_QUALIFIER in cast specifically when it has to count.
+ */
+
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L \
+    && !defined(__STDC_NO_ATOMICS__)
+# include <stdatomic.h>
+
+# if defined(ATOMIC_POINTER_LOCK_FREE) \
+          && ATOMIC_POINTER_LOCK_FREE >= 2
+#  define TSAN_QUALIFIER _Atomic
+#  define tsan_load(ptr) atomic_load_explicit((ptr), memory_order_relaxed)
+#  define tsan_store(ptr, val) atomic_store_explicit((ptr), (val), memory_order_relaxed)
+#  define tsan_counter(ptr) atomic_fetch_add_explicit((ptr), 1, memory_order_relaxed)
+#  define tsan_decr(ptr) atomic_fetch_add_explicit((ptr), -1, memory_order_relaxed)
+#  define tsan_ld_acq(ptr) atomic_load_explicit((ptr), memory_order_acquire)
+#  define tsan_st_rel(ptr, val) atomic_store_explicit((ptr), (val), memory_order_release)
+# endif
+
+#elif defined(__GNUC__) && defined(__ATOMIC_RELAXED)
+
+# if defined(__GCC_ATOMIC_POINTER_LOCK_FREE) \
+          && __GCC_ATOMIC_POINTER_LOCK_FREE >= 2
+#  define TSAN_QUALIFIER volatile
+#  define tsan_load(ptr) __atomic_load_n((ptr), __ATOMIC_RELAXED)
+#  define tsan_store(ptr, val) __atomic_store_n((ptr), (val), __ATOMIC_RELAXED)
+#  define tsan_counter(ptr) __atomic_fetch_add((ptr), 1, __ATOMIC_RELAXED)
+#  define tsan_decr(ptr) __atomic_fetch_add((ptr), -1, __ATOMIC_RELAXED)
+#  define tsan_ld_acq(ptr) __atomic_load_n((ptr), __ATOMIC_ACQUIRE)
+#  define tsan_st_rel(ptr, val) __atomic_store_n((ptr), (val), __ATOMIC_RELEASE)
+# endif
+
+#elif defined(_MSC_VER) && _MSC_VER>=1200 \
+      && (defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64) || \
+          defined(_M_ARM64) || (defined(_M_ARM) && _M_ARM >= 7 && !defined(_WIN32_WCE)))
+/*
+ * There is subtle dependency on /volatile:<iso|ms> command-line option.
+ * "ms" implies same semantic as memory_order_acquire for loads and
+ * memory_order_release for stores, while "iso" - memory_order_relaxed for
+ * either. Real complication is that defaults are different on x86 and ARM.
+ * There is explanation for that, "ms" is backward compatible with earlier
+ * compiler versions, while multi-processor ARM can be viewed as brand new
+ * platform to MSC and its users, and with non-relaxed semantic taking toll
+ * with additional instructions and penalties, it kind of makes sense to
+ * default to "iso"...
+ */
+# define TSAN_QUALIFIER volatile
+# if defined(_M_ARM) || defined(_M_ARM64)
+#  define _InterlockedExchangeAdd _InterlockedExchangeAdd_nf
+#  pragma intrinsic(_InterlockedExchangeAdd_nf)
+#  pragma intrinsic(__iso_volatile_load32, __iso_volatile_store32)
+#  ifdef _WIN64
+#   define _InterlockedExchangeAdd64 _InterlockedExchangeAdd64_nf
+#   pragma intrinsic(_InterlockedExchangeAdd64_nf)
+#   pragma intrinsic(__iso_volatile_load64, __iso_volatile_store64)
+#   define tsan_load(ptr) (sizeof(*(ptr)) == 8 ? __iso_volatile_load64(ptr) \
+                                               : __iso_volatile_load32(ptr))
+#   define tsan_store(ptr, val) (sizeof(*(ptr)) == 8 ? __iso_volatile_store64((ptr), (val)) \
+                                                     : __iso_volatile_store32((ptr), (val)))
+#  else
+#   define tsan_load(ptr) __iso_volatile_load32(ptr)
+#   define tsan_store(ptr, val) __iso_volatile_store32((ptr), (val))
+#  endif
+# else
+#  define tsan_load(ptr) (*(ptr))
+#  define tsan_store(ptr, val) (*(ptr) = (val))
+# endif
+# pragma intrinsic(_InterlockedExchangeAdd)
+# ifdef _WIN64
+#  pragma intrinsic(_InterlockedExchangeAdd64)
+#  define tsan_counter(ptr) (sizeof(*(ptr)) == 8 ? _InterlockedExchangeAdd64((ptr), 1) \
+                                                 : _InterlockedExchangeAdd((ptr), 1))
+#  define tsan_decr(ptr) (sizeof(*(ptr)) == 8 ? _InterlockedExchangeAdd64((ptr), -1) \
+                                                 : _InterlockedExchangeAdd((ptr), -1))
+# else
+#  define tsan_counter(ptr) _InterlockedExchangeAdd((ptr), 1)
+#  define tsan_decr(ptr) _InterlockedExchangeAdd((ptr), -1)
+# endif
+# if !defined(_ISO_VOLATILE)
+#  define tsan_ld_acq(ptr) (*(ptr))
+#  define tsan_st_rel(ptr, val) (*(ptr) = (val))
+# endif
+
+#endif
+
+#ifndef TSAN_QUALIFIER
+
+# define TSAN_QUALIFIER volatile
+# define tsan_load(ptr) (*(ptr))
+# define tsan_store(ptr, val) (*(ptr) = (val))
+# define tsan_counter(ptr) ((*(ptr))++)
+# define tsan_decr(ptr) ((*(ptr))--)
+/*
+ * Lack of tsan_ld_acq and tsan_ld_rel means that compiler support is not
+ * sophisticated enough to support them. Code that relies on them should be
+ * protected with #ifdef tsan_ld_acq with locked fallback.
+ */
+
+#endif