Merge branch 'master' into DRTVWR-522-maint

# Conflicts:
#	doc/contributions.txt

7 files changed, 111 insertions, 64 deletions

diff --git a/indra/llcommon/llcoros.cpp b/indra/llcommon/llcoros.cpp
index 262929006d..23419a52a7 100644
--- a/indra/llcommon/llcoros.cpp
+++ b/indra/llcommon/llcoros.cpp
@@ -56,10 +56,6 @@
 #include "stringize.h"
 #include "llexception.h"
 
-#if LL_WINDOWS
-#include <excpt.h>
-#endif
-
 // static
 LLCoros::CoroData& LLCoros::get_CoroData(const std::string& caller)
 {
@@ -253,29 +249,13 @@ std::string LLCoros::launch(const std::string& prefix, const callable_t& callabl
 
 #if LL_WINDOWS
 
-static const U32 STATUS_MSC_EXCEPTION = 0xE06D7363; // compiler specific
-
-U32 exception_filter(U32 code, struct _EXCEPTION_POINTERS *exception_infop)
-{
-    if (code == STATUS_MSC_EXCEPTION)
-    {
-        // C++ exception, go on
-        return EXCEPTION_CONTINUE_SEARCH;
-    }
-    else
-    {
-        // handle it
-        return EXCEPTION_EXECUTE_HANDLER;
-    }
-}
-
 void LLCoros::winlevel(const callable_t& callable)
 {
     __try
     {
         callable();
     }
-    __except (exception_filter(GetExceptionCode(), GetExceptionInformation()))
+    __except (msc_exception_filter(GetExceptionCode(), GetExceptionInformation()))
     {
         // convert to C++ styled exception
         // Note: it might be better to use _se_set_translator
diff --git a/indra/llcommon/llexception.cpp b/indra/llcommon/llexception.cpp
index 5ce8958687..b584b0ff8b 100644
--- a/indra/llcommon/llexception.cpp
+++ b/indra/llcommon/llexception.cpp
@@ -24,11 +24,14 @@
 // `_GNU_SOURCE` macro or `BOOST_STACKTRACE_GNU_SOURCE_NOT_REQUIRED` if
 // _Unwind_Backtrace is available without `_GNU_SOURCE`."
 #define BOOST_STACKTRACE_GNU_SOURCE_NOT_REQUIRED
+
 #if LL_WINDOWS
 // On Windows, header-only implementation causes macro collisions -- use
 // prebuilt library
 #define BOOST_STACKTRACE_LINK
+#include <excpt.h>
 #endif // LL_WINDOWS
+
 #include <boost/stacktrace.hpp>
 // other Linden headers
 #include "llerror.h"
@@ -85,3 +88,25 @@ void annotate_exception_(boost::exception& exc)
     // Anyway, which of us is really going to examine more than 100 frames?
     exc << errinfo_stacktrace(boost::stacktrace::stacktrace(1, 100));
 }
+
+#if LL_WINDOWS
+
+// For windows SEH exception handling we sometimes need a filter that will
+// separate C++ exceptions from C SEH exceptions
+static const U32 STATUS_MSC_EXCEPTION = 0xE06D7363; // compiler specific
+
+U32 msc_exception_filter(U32 code, struct _EXCEPTION_POINTERS *exception_infop)
+{
+    if (code == STATUS_MSC_EXCEPTION)
+    {
+        // C++ exception, go on
+        return EXCEPTION_CONTINUE_SEARCH;
+    }
+    else
+    {
+        // handle it
+        return EXCEPTION_EXECUTE_HANDLER;
+    }
+}
+
+#endif //LL_WINDOWS
diff --git a/indra/llcommon/llexception.h b/indra/llcommon/llexception.h
index 422dd8810a..375bea4a57 100644
--- a/indra/llcommon/llexception.h
+++ b/indra/llcommon/llexception.h
@@ -102,4 +102,14 @@ void crash_on_unhandled_exception_(const char*, int, const char*, const std::str
      log_unhandled_exception_(__FILE__, __LINE__, BOOST_CURRENT_FUNCTION, CONTEXT)
 void log_unhandled_exception_(const char*, int, const char*, const std::string&);
 
+
+#if LL_WINDOWS
+
+// SEH exception filtering for use in __try __except
+// Separates C++ exceptions from C SEH exceptions
+// Todo: might be good idea to do some kind of seh_to_msc_wrapper(function, ARGS&&);
+U32 msc_exception_filter(U32 code, struct _EXCEPTION_POINTERS *exception_infop);
+
+#endif //LL_WINDOWS
+
 #endif /* ! defined(LL_LLEXCEPTION_H) */
diff --git a/indra/llcommon/llsingleton.cpp b/indra/llcommon/llsingleton.cpp
index 83a4b64e8f..ad933154c2 100644
--- a/indra/llcommon/llsingleton.cpp
+++ b/indra/llcommon/llsingleton.cpp
@@ -388,7 +388,7 @@ LLSingletonBase::vec_t LLSingletonBase::dep_sort()
     // extracts just the first (key) element from each sorted_iterator, then
     // uses vec_t's range constructor... but frankly this is more
     // straightforward, as long as we remember the above reserve() call!
-    for (const SingletonDeps::sorted_iterator::value_type& pair : sdeps.sort())
+    for (const SingletonDeps::sorted_iterator::value_type pair : sdeps.sort())
     {
         ret.push_back(pair.first);
     }
diff --git a/indra/llcommon/llsys.cpp b/indra/llcommon/llsys.cpp
index f7461422f7..079d297b80 100644
--- a/indra/llcommon/llsys.cpp
+++ b/indra/llcommon/llsys.cpp
@@ -55,6 +55,7 @@
 #include <boost/utility/enable_if.hpp>
 #include <boost/type_traits/is_integral.hpp>
 #include <boost/type_traits/is_float.hpp>
+#include "llfasttimer.h"
 
 using namespace llsd;
 
@@ -892,8 +893,12 @@ LLMemoryInfo& LLMemoryInfo::refresh()
 	return *this;
 }
 
+static LLTrace::BlockTimerStatHandle FTM_MEMINFO_LOAD_STATS("MemInfo Load Stats");
+
 LLSD LLMemoryInfo::loadStatsMap()
 {
+	LL_RECORD_BLOCK_TIME(FTM_MEMINFO_LOAD_STATS);
+
 	// This implementation is derived from stream() code (as of 2011-06-29).
 	Stats stats;
 
@@ -915,24 +920,11 @@ LLSD LLMemoryInfo::loadStatsMap()
 	stats.add("Total Virtual KB",   state.ullTotalVirtual/div);
 	stats.add("Avail Virtual KB",   state.ullAvailVirtual/div);
 
-	PERFORMANCE_INFORMATION perf;
-	perf.cb = sizeof(perf);
-	GetPerformanceInfo(&perf, sizeof(perf));
-
-	SIZE_T pagekb(perf.PageSize/1024);
-	stats.add("CommitTotal KB",     perf.CommitTotal * pagekb);
-	stats.add("CommitLimit KB",     perf.CommitLimit * pagekb);
-	stats.add("CommitPeak KB",      perf.CommitPeak * pagekb);
-	stats.add("PhysicalTotal KB",   perf.PhysicalTotal * pagekb);
-	stats.add("PhysicalAvail KB",   perf.PhysicalAvailable * pagekb);
-	stats.add("SystemCache KB",     perf.SystemCache * pagekb);
-	stats.add("KernelTotal KB",     perf.KernelTotal * pagekb);
-	stats.add("KernelPaged KB",     perf.KernelPaged * pagekb);
-	stats.add("KernelNonpaged KB",  perf.KernelNonpaged * pagekb);
-	stats.add("PageSize KB",        pagekb);
-	stats.add("HandleCount",        perf.HandleCount);
-	stats.add("ProcessCount",       perf.ProcessCount);
-	stats.add("ThreadCount",        perf.ThreadCount);
+	// SL-12122 - Call to GetPerformanceInfo() was removed here. Took
+	// on order of 10 ms, causing unacceptable frame time spike every
+	// second, and results were never used. If this is needed in the
+	// future, must find a way to avoid frame time impact (e.g. move
+	// to another thread, call much less often).
 
 	PROCESS_MEMORY_COUNTERS_EX pmem;
 	pmem.cb = sizeof(pmem);
diff --git a/indra/llcommon/lluriparser.cpp b/indra/llcommon/lluriparser.cpp
index c275b90120..e4f229dd16 100644
--- a/indra/llcommon/lluriparser.cpp
+++ b/indra/llcommon/lluriparser.cpp
@@ -29,10 +29,13 @@
 #include "linden_common.h"
 #include "lluriparser.h"
 
+#if LL_DARWIN
+#include <signal.h>
+#include <setjmp.h>
+#endif
+
 LLUriParser::LLUriParser(const std::string& u) : mTmpScheme(false), mNormalizedTmp(false), mRes(0)
 {
-	mState.uri = &mUri;
-
 	if (u.find("://") == std::string::npos)
 	{
 		mNormalizedUri = "http://";
@@ -51,7 +54,7 @@ LLUriParser::~LLUriParser()
 
 S32 LLUriParser::parse()
 {
-	mRes = uriParseUriA(&mState, mNormalizedUri.c_str());
+	mRes = uriParseSingleUriA(&mUri, mNormalizedUri.c_str(), NULL);
 	return mRes;
 }
 
@@ -158,31 +161,69 @@ void LLUriParser::extractParts()
 	}
 }
 
+#if LL_DARWIN
+typedef void(*sighandler_t)(int);
+jmp_buf return_to_normalize;
+void uri_signal_handler(int signal)
+{
+    // Apparently signal handler throwing an exception doesn't work.
+    // This is ugly and unsafe due to not unwinding content of uriparser library,
+    // but unless we have a way to catch this as NSexception, jump appears to be the only option.
+    longjmp(return_to_normalize, 1 /*setjmp will return this value*/);
+}
+#endif
+
 S32 LLUriParser::normalize()
 {
 	mNormalizedTmp = mTmpScheme;
 	if (!mRes)
 	{
-		mRes = uriNormalizeSyntaxExA(&mUri, URI_NORMALIZE_SCHEME | URI_NORMALIZE_HOST);
-
-		if (!mRes)
-		{
-			S32 chars_required;
-			mRes = uriToStringCharsRequiredA(&mUri, &chars_required);
-
-			if (!mRes)
-			{
-				chars_required++;
-				std::vector<char> label_buf(chars_required);
-				mRes = uriToStringA(&label_buf[0], &mUri, chars_required, NULL);
-
-				if (!mRes)
-				{
-					mNormalizedUri = &label_buf[mTmpScheme ? 7 : 0];
-					mTmpScheme = false;
-				}
-			}
-		}
+#if LL_DARWIN
+        sighandler_t last_handler;
+        last_handler = signal(SIGILL, &uri_signal_handler);		// illegal instruction
+        if (setjmp(return_to_normalize))
+        {
+            // Issue: external library crashed via signal
+            // If you encountered this, please try to figure out what's wrong:
+            // 1. Verify that library's input is 'sane'
+            // 2. Check if we have an NSexception to work with (unlikely)
+            // 3. See if passing same string causes exception to repeat
+            //
+            // Crash happens at uriNormalizeSyntaxExA
+            // Warning!!! This does not properly unwind stack,
+            // if this can be handled by NSexception, it needs to be remade
+            llassert(0);
+
+            LL_WARNS() << "Uriparser crashed with SIGILL, while processing: " << mNormalizedUri << LL_ENDL;
+            signal(SIGILL, last_handler);
+            return 1;
+        }
+#endif
+
+        mRes = uriNormalizeSyntaxExA(&mUri, URI_NORMALIZE_SCHEME | URI_NORMALIZE_HOST);
+
+#if LL_DARWIN
+        signal(SIGILL, last_handler);
+#endif
+
+        if (!mRes)
+        {
+            S32 chars_required;
+            mRes = uriToStringCharsRequiredA(&mUri, &chars_required);
+
+            if (!mRes)
+            {
+                chars_required++;
+                std::vector<char> label_buf(chars_required);
+                mRes = uriToStringA(&label_buf[0], &mUri, chars_required, NULL);
+
+                if (!mRes)
+                {
+                    mNormalizedUri = &label_buf[mTmpScheme ? 7 : 0];
+                    mTmpScheme = false;
+                }
+            }
+        }
 	}
 
 	if(mTmpScheme)
diff --git a/indra/llcommon/lluriparser.h b/indra/llcommon/lluriparser.h
index cfbf54f3c8..92626b9054 100644
--- a/indra/llcommon/lluriparser.h
+++ b/indra/llcommon/lluriparser.h
@@ -76,7 +76,6 @@ private:
 	std::string mFragment;
 	std::string mNormalizedUri;
 
-	UriParserStateA mState;
 	UriUriA mUri;
 
 	S32 mRes;