#ifndef __SSI_FILEREQ_H__ #define __SSI_FILEREQ_H__ /******************************************************************************/ /* */ /* X r d S s i F i l e R e q . h h */ /* */ /* (c) 2013 by the Board of Trustees of the Leland Stanford, Jr., University */ /* Produced by Andrew Hanushevsky for Stanford University under contract */ /* DE-AC02-76-SFO0515 with the Department of Energy */ /* */ /* This file is part of the XRootD software suite. */ /* */ /* XRootD 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, either version 3 of the License, or (at your */ /* option) any later version. */ /* */ /* XRootD 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 XRootD in a file called COPYING.LESSER (LGPL license) and file */ /* COPYING (GPL license). If not, see . */ /* */ /* The copyright holder's institutional names and contributor's names may not */ /* be used to endorse or promote products derived from this software without */ /* specific prior written permission of the institution or contributor. */ /******************************************************************************/ #include #include #include "Xrd/XrdJob.hh" #include "Xrd/XrdScheduler.hh" #include "XrdSfs/XrdSfsInterface.hh" #include "XrdSsi/XrdSsiRequest.hh" #include "XrdSsi/XrdSsiResponder.hh" #include "XrdSsi/XrdSsiStream.hh" #include "XrdSys/XrdSysPthread.hh" class XrdOucErrInfo; class XrdSfsXioHandle; class XrdSsiAlert; class XrdSsiFileResource; class XrdSsiFileSess; class XrdSsiRespInfoMsg; class XrdSsiRRInfo; class XrdSsiService; class XrdSsiStream; class XrdSsiFileReq : public XrdSsiRequest, public XrdOucEICB, public XrdJob { public: // SsiRequest methods // void Activate(XrdOucBuffer *oP, XrdSfsXioHandle *bR, int rSz); void Alert(XrdSsiRespInfoMsg &aMsg); static XrdSsiFileReq *Alloc(XrdOucErrInfo *eP, XrdSsiFileResource *rP, XrdSsiFileSess *fP, const char *sn, const char *id, unsigned int rnum); void Finalize(); using XrdSsiRequest::Finished; void Finished( XrdSsiRequest &rqstR, const XrdSsiRespInfo &rInfo, bool cancel=false) {} char *GetRequest(int &rLen); bool ProcessResponse(const XrdSsiErrInfo &eInfo, const XrdSsiRespInfo &resp); XrdSfsXferSize Read(bool &done, char *buffer, XrdSfsXferSize blen); void RelRequestBuffer(); int Send(XrdSfsDio *sfDio, XrdSfsXferSize size); static void SetMax(int mVal) {freeMax = mVal;} bool WantResponse(XrdOucErrInfo &eInfo); // OucEICB methods // void Done(int &Result, XrdOucErrInfo *cbInfo, const char *path=0); int Same(unsigned long long arg1, unsigned long long arg2) {return 0;} // Job methods // void DoIt(); // Constructor and destructor // XrdSsiFileReq(const char *cID=0) : frqMutex(XrdSsiMutex::Recursive) {Init(cID);} virtual ~XrdSsiFileReq() {if (tident) free(tident);} enum reqState {wtReq=0, xqReq, wtRsp, doRsp, odRsp, erRsp, rsEnd}; enum rspState {isNew=0, isBegun, isBound, isAbort, isDone, isMax}; private: void BindDone(); // Override void Dispose(); // Override int Emsg(const char *pfx, int ecode, const char *op); int Emsg(const char *pfx, XrdSsiErrInfo &eObj, const char *op); void Init(const char *cID=0); XrdSfsXferSize readStrmA(XrdSsiStream *strmP, char *buff, XrdSfsXferSize blen); XrdSfsXferSize readStrmP(XrdSsiStream *strmP, char *buff, XrdSfsXferSize blen); int sendStrmA(XrdSsiStream *strmP, XrdSfsDio *sfDio, XrdSfsXferSize blen); void Recycle(); void WakeUp(XrdSsiAlert *aP=0); static XrdSysMutex aqMutex; static XrdSsiFileReq *freeReq; static int freeCnt; static int freeMax; XrdSsiMutex frqMutex; XrdSsiFileReq *nextReq; XrdSysSemaphore *finWait; XrdOucEICB *respCB; unsigned long long respCBarg; XrdSsiAlert *alrtSent; XrdSsiAlert *alrtPend; XrdSsiAlert *alrtLast; char *tident; const char *sessN; XrdOucErrInfo *cbInfo; XrdSsiFileResource *fileR; XrdSsiFileSess *fileP; char *respBuf; long long respOff; union {long long fileSz; int respLen; }; XrdSfsXioHandle *sfsBref; XrdOucBuffer *oucBuff; XrdSsiStream::Buffer *strBuff; reqState myState; rspState urState; int reqSize; unsigned int reqID; bool haveResp; bool respWait; bool strmEOF; bool schedDone; bool isEnding; char rID[8]; }; #endif