165 lines
4.1 KiB
C++
165 lines
4.1 KiB
C++
/**
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* @file _httpoperation.h
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* @brief Internal declarations for HttpOperation and sub-classes
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*
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* $LicenseInfo:firstyear=2012&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2012, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef _LLCORE_HTTP_OPERATION_H_
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#define _LLCORE_HTTP_OPERATION_H_
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#include "httpcommon.h"
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#include "_refcounted.h"
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namespace LLCore
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{
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class HttpReplyQueue;
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class HttpHandler;
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class HttpService;
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class HttpRequest;
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/// HttpOperation is the base class for all request/reply
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/// pairs.
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///
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class HttpOperation : public LLCoreInt::RefCounted
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{
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public:
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HttpOperation();
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virtual ~HttpOperation();
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private:
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HttpOperation(const HttpOperation &); // Not defined
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void operator=(const HttpOperation &); // Not defined
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public:
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void setHandlers(HttpReplyQueue * reply_queue,
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HttpHandler * lib_handler,
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HttpHandler * user_handler);
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HttpHandler * getUserHandler() const
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{
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return mUserHandler;
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}
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virtual void stageFromRequest(HttpService *);
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virtual void stageFromReady(HttpService *);
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virtual void stageFromActive(HttpService *);
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virtual void visitNotifier(HttpRequest *);
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virtual HttpStatus cancel();
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protected:
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void addAsReply();
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protected:
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HttpReplyQueue * mReplyQueue; // Have refcount
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HttpHandler * mLibraryHandler; // Have refcount
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HttpHandler * mUserHandler; // Have refcount
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public:
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unsigned int mReqPolicy;
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float mReqPriority;
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}; // end class HttpOperation
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/// HttpOpCancel requests that a previously issued request
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/// be canceled, if possible. Requests that have been made
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/// active and are available for sending on the wire cannot
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/// be canceled.
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class HttpOpCancel : public HttpOperation
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{
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public:
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HttpOpCancel();
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virtual ~HttpOpCancel();
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private:
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HttpOpCancel(const HttpOpCancel &); // Not defined
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void operator=(const HttpOpCancel &); // Not defined
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public:
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virtual void stageFromRequest(HttpService *);
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virtual void stageFromReady(HttpService *);
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virtual void stageFromActive(HttpService *);
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public:
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HttpHandle mHandle;
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}; // end class HttpOpCancel
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/// HttpOpStop requests the servicing thread to shutdown
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/// operations, cease pulling requests from the request
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/// queue and release shared resources (particularly
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/// those shared via reference count). The servicing
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/// thread will then exit. The underlying thread object
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/// remains so that another thread can join on the
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/// servicing thread prior to final cleanup. The
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/// request *does* generate a reply on the response
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/// queue, if requested.
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class HttpOpStop : public HttpOperation
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{
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public:
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HttpOpStop();
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virtual ~HttpOpStop();
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private:
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HttpOpStop(const HttpOpStop &); // Not defined
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void operator=(const HttpOpStop &); // Not defined
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public:
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virtual void stageFromRequest(HttpService *);
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}; // end class HttpOpStop
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/// HttpOpNull is a do-nothing operation used for testing via
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/// a basic loopback pattern. It's executed immediately by
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/// the servicing thread which bounces a reply back to the
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/// caller without any further delay.
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class HttpOpNull : public HttpOperation
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{
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public:
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HttpOpNull();
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virtual ~HttpOpNull();
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private:
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HttpOpNull(const HttpOpNull &); // Not defined
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void operator=(const HttpOpNull &); // Not defined
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public:
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virtual void stageFromRequest(HttpService *);
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}; // end class HttpOpNull
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} // end namespace LLCore
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#endif // _LLCORE_HTTP_OPERATION_H_
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