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.

1 files changed, 0 insertions, 25 deletions

diff --git a/indra/llcorehttp/_httpoperation.h b/indra/llcorehttp/_httpoperation.h
index d04961c47b..5d06a28586 100644
--- a/indra/llcorehttp/_httpoperation.h
+++ b/indra/llcorehttp/_httpoperation.h
@@ -87,31 +87,6 @@ public:
 };  // end class HttpOperation
 
 
-/// HttpOpCancel requests that a previously issued request
-/// be canceled, if possible.  Requests that have been made
-/// active and are available for sending on the wire cannot
-/// be canceled.
-
-class HttpOpCancel : public HttpOperation
-{
-public:
-	HttpOpCancel();
-	virtual ~HttpOpCancel();
-
-private:
-	HttpOpCancel(const HttpOpCancel &);					// Not defined
-	void operator=(const HttpOpCancel &);				// Not defined
-
-public:
-	virtual void stageFromRequest(HttpService *);
-	virtual void stageFromReady(HttpService *);
-	virtual void stageFromActive(HttpService *);
-
-public:
-	HttpHandle			mHandle;
-};  // end class HttpOpCancel
-
-
 /// HttpOpStop requests the servicing thread to shutdown
 /// operations, cease pulling requests from the request
 /// queue and release shared resources (particularly