godot/core/safe_refcount.cpp
Pedro J. Estébanez 55b5f98402 Improve robustness of atomics
And fix increment in `CowData` not being conditional anymore after the recent changes.

Co-authored-by: Hein-Pieter van Braam-Stewart <hp@tmm.cx>
2021-02-19 11:48:30 +01:00

46 lines
2.7 KiB
C++

/*************************************************************************/
/* safe_refcount.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
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#if defined(DEBUG_ENABLED) && !defined(NO_THREADS)
#include "safe_refcount.h"
#include "core/error_macros.h"
// On C++14 we don't have std::atomic::is_always_lockfree, so this is the best we can do
void check_lockless_atomics() {
// Doing the check for the types we actually care about
if (!std::atomic<uint32_t>{}.is_lock_free() || !std::atomic<uint64_t>{}.is_lock_free() || !std::atomic_bool{}.is_lock_free()) {
WARN_PRINT("Your compiler doesn't seem to support lockless atomics. Performance will be degraded. Please consider upgrading to a different or newer compiler.");
}
}
#endif