From a979705a0aded35cb8e947f101547a53551115eb Mon Sep 17 00:00:00 2001
From: Sven Marcus <s.marcus@outlook.de>
Date: Fri, 25 Sep 2020 11:15:13 +0200
Subject: [PATCH] MemoryUtil can determine total physical memory on macOS
---
src/cpu/VirtualFluidsCore/Utilities/MemoryUtil.h | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/src/cpu/VirtualFluidsCore/Utilities/MemoryUtil.h b/src/cpu/VirtualFluidsCore/Utilities/MemoryUtil.h
index f94757aa7..b1dd85885 100644
--- a/src/cpu/VirtualFluidsCore/Utilities/MemoryUtil.h
+++ b/src/cpu/VirtualFluidsCore/Utilities/MemoryUtil.h
@@ -42,8 +42,13 @@ namespace Utilities
long long totalPhysMem = memInfo.totalram;
//Multiply in next statement to avoid int overflow on right hand side...
totalPhysMem *= memInfo.mem_unit;
- #elif defined(MEMORYUTIL_APPLE)
- long long totalPhysMem = 0;
+ #elif defined(MEMORYUTIL_APPLE)
+ int mib [] = { CTL_HW, HW_MEMSIZE };
+ int64_t totalPhysMem;
+ size_t length = sizeof(totalPhysMem);
+
+ if(sysctl(mib, 2, &totalPhysMem, &length, nullptr, 0) == -1)
+ return 0;
#else
#error "MemoryUtil::getTotalPhysMem - UnknownMachine"
#endif
--
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