From 5ee546eb4e446632c32e62a5234241fd6498f281 Mon Sep 17 00:00:00 2001
From: Xiaohong Bao <bao@lindenlab.com>
Date: Thu, 14 Oct 2010 17:01:39 -0600
Subject: for SH-335: create a debug tool to track of memory availability.

---
 indra/llcommon/llsys.cpp | 19 +++++++++++++++++++
 indra/llcommon/llsys.h   |  3 +++
 2 files changed, 22 insertions(+)

(limited to 'indra/llcommon')

diff --git a/indra/llcommon/llsys.cpp b/indra/llcommon/llsys.cpp
index 00c94404d4..7a82a17d0b 100644
--- a/indra/llcommon/llsys.cpp
+++ b/indra/llcommon/llsys.cpp
@@ -635,6 +635,25 @@ U32 LLMemoryInfo::getPhysicalMemoryClamped() const
 	}
 }
 
+void LLMemoryInfo::getAvailableMemoryKB(U32& avail_physical_mem_kb, U32& avail_virtual_mem_kb) const
+{
+#if LL_WINDOWS
+	MEMORYSTATUSEX state;
+	state.dwLength = sizeof(state);
+	GlobalMemoryStatusEx(&state);
+
+	avail_physical_mem_kb = (U32)(state.ullAvailPhys/1024) ;
+	avail_virtual_mem_kb = (U32)(state.ullAvailVirtual/1024) ;
+
+#else
+	//do not know how to collect available memory info for other systems.
+	//leave it blank here for now.
+
+	avail_physical_mem_kb = -1 ;
+	avail_virtual_mem_kb = -1 ;
+#endif
+}
+
 void LLMemoryInfo::stream(std::ostream& s) const
 {
 #if LL_WINDOWS
diff --git a/indra/llcommon/llsys.h b/indra/llcommon/llsys.h
index 39af74e5c8..35425f38ed 100644
--- a/indra/llcommon/llsys.h
+++ b/indra/llcommon/llsys.h
@@ -114,6 +114,9 @@ public:
 	**  be returned.
 	*/
 	U32 getPhysicalMemoryClamped() const; ///< Memory size in clamped bytes
+
+	//get the available memory infomation in KiloBytes.
+	void getAvailableMemoryKB(U32& avail_physical_mem_kb, U32& avail_virtual_mem_kb) const;
 };
 
 
-- 
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