From 8fc350125c671baeae6b7f8b1814251009f4f50a Mon Sep 17 00:00:00 2001
From: Monty Brandenberg <monty@lindenlab.com>
Date: Wed, 23 May 2012 19:12:09 -0400
Subject: Integrate llcorehttp library into lltexturefetch design. This is the
 first functional viewer pass with the HTTP work of the texture fetch code
 performed by the llcorehttp library.  Not exactly a 'drop-in' replacement but
 a work-alike with some changes (e.g. handler notification in consumer thread
 versus responder notification in worker thread).

This also includes some temporary changes in the priority scheme to prevent
the kind of priority inversion found in VWR-28996.  Scheme used here does
provide liveness if not optimal responsiveness or order-of-operation.

The llcorehttp library at this point is far from optimally performing.
Its worker thread is making relatively poor use of cycles it gets and
it doesn't idle or sleep intelligently yet.  This early integration step
helps shake out the interfaces, implementation niceties will be covered
soon.
---
 indra/llcorehttp/_httpopcancel.cpp | 82 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 indra/llcorehttp/_httpopcancel.cpp

(limited to 'indra/llcorehttp/_httpopcancel.cpp')

diff --git a/indra/llcorehttp/_httpopcancel.cpp b/indra/llcorehttp/_httpopcancel.cpp
new file mode 100644
index 0000000000..69dbff4bb4
--- /dev/null
+++ b/indra/llcorehttp/_httpopcancel.cpp
@@ -0,0 +1,82 @@
+/**
+ * @file _httpopcancel.cpp
+ * @brief Definitions for internal class HttpOpCancel
+ *
+ * $LicenseInfo:firstyear=2012&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2012, 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
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#include "_httpopcancel.h"
+
+#include <cstdio>
+#include <algorithm>
+
+#include "httpcommon.h"
+#include "httphandler.h"
+#include "httpresponse.h"
+
+#include "_httprequestqueue.h"
+#include "_httpreplyqueue.h"
+#include "_httpservice.h"
+#include "_httppolicy.h"
+#include "_httplibcurl.h"
+
+
+namespace LLCore
+{
+
+
+// ==================================
+// HttpOpCancel
+// ==================================
+
+
+HttpOpCancel::HttpOpCancel(HttpHandle handle)
+	: HttpOperation(),
+	  mHandle(handle)
+{}
+
+
+HttpOpCancel::~HttpOpCancel()
+{}
+
+
+void HttpOpCancel::stageFromRequest(HttpService * service)
+{
+	// *FIXME:  Need cancel functionality into services
+	addAsReply();
+}
+
+
+void HttpOpCancel::visitNotifier(HttpRequest * request)
+{
+	if (mLibraryHandler)
+	{
+		HttpResponse * response = new HttpResponse();
+		mLibraryHandler->onCompleted(static_cast<HttpHandle>(this), response);
+		response->release();
+	}
+}
+
+
+}   // end namespace LLCore
+
+		
-- 
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