Better support for dynamic option changes in llcorehttp. Libcurl has

some problems disabling pipelining on a multi handle with outstanding
requests so build a more conservative system that allows requests
to drain before setting curl multi options.  Would rather not have
this but it is significantly safer.  "HttpPipelining" debug setting
is now fully dynamic.  Connection limits can also be made dynamic
in the near future.  Upped the default connection count back to 8 for
now but will revisit this in the tuning phase.  It might be time to
combine mesh and textures into a single asset class.  For normal
server operations that would be a clear path, but for server under
load, the current scheme may be better.  Minor cleanup in logging
to elminate some redundant strings.  Might add some more tracing to the
stall logic 'just in case'.

1 files changed, 11 insertions, 1 deletions

diff --git a/indra/llcorehttp/_httplibcurl.h b/indra/llcorehttp/_httplibcurl.h
index 67f98dd4f0..2c7ad1fa8e 100755
--- a/indra/llcorehttp/_httplibcurl.h
+++ b/indra/llcorehttp/_httplibcurl.h
@@ -4,7 +4,7 @@
  *
  * $LicenseInfo:firstyear=2012&license=viewerlgpl$
  * Second Life Viewer Source Code
- * Copyright (C) 2012-2013, Linden Research, Inc.
+ * Copyright (C) 2012-2014, Linden Research, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -116,6 +116,14 @@ public:
 	/// Threading:  called by worker thread.
 	bool cancel(HttpHandle handle);
 
+	/// Informs transport that a particular policy class has had
+	/// options changed and so should effect any transport state
+	/// change necessary to effect those changes.  Used mainly for
+	/// initialization and dynamic option setting.
+	///
+	/// Threading:  called by worker thread.
+	void policyUpdated(int policy_class);
+
 protected:
 	/// Invoked when libcurl has indicated a request has been processed
 	/// to completion and we need to move the request to a new state.
@@ -134,6 +142,8 @@ protected:
 	int					mPolicyCount;
 	CURLM **			mMultiHandles;			// One handle per policy class
 	int *				mActiveHandles;			// Active count per policy class
+	bool *				mDirtyPolicy;			// Dirty policy update waiting for stall (per pc)
+	
 }; // end class HttpLibcurl
 
 }  // end namespace LLCore