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XrdClientInputBuffer.hh
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1#ifndef XRC_INPUTBUFFER_H
2#define XRC_INPUTBUFFER_H
3/******************************************************************************/
4/* */
5/* X r d C l i e n t I n p u t B u f f e r . h h */
6/* */
7/* Author: Fabrizio Furano (INFN Padova, 2004) */
8/* Adapted from TXNetFile (root.cern.ch) originally done by */
9/* Alvise Dorigo, Fabrizio Furano */
10/* INFN Padova, 2003 */
11/* */
12/* This file is part of the XRootD software suite. */
13/* */
14/* XRootD is free software: you can redistribute it and/or modify it under */
15/* the terms of the GNU Lesser General Public License as published by the */
16/* Free Software Foundation, either version 3 of the License, or (at your */
17/* option) any later version. */
18/* */
19/* XRootD is distributed in the hope that it will be useful, but WITHOUT */
20/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
21/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */
22/* License for more details. */
23/* */
24/* You should have received a copy of the GNU Lesser General Public License */
25/* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */
26/* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */
27/* */
28/* The copyright holder's institutional names and contributor's names may not */
29/* be used to endorse or promote products derived from this software without */
30/* specific prior written permission of the institution or contributor. */
31/******************************************************************************/
32
33//////////////////////////////////////////////////////////////////////////
34// //
35// Buffer for incoming messages (responses) //
36// Handles the waiting (with timeout) for a message to come //
37// belonging to a logical streamid //
38// Multithread friendly //
39// //
40//////////////////////////////////////////////////////////////////////////
41
43#include "XrdSys/XrdSysPthread.hh"
44#include "XrdSys/XrdSysSemWait.hh"
45#include "XrdOuc/XrdOucHash.hh"
47
48using namespace std;
49
51
52private:
53
54 XrdClientVector<XrdClientMessage*> fMsgQue; // queue for incoming messages
55 int fMsgIter; // an iterator on it
56
57 XrdSysRecMutex fMutex; // mutex to protect data structures
58
59 XrdOucHash<XrdSysSemWait> fSyncobjRepo;
60 // each streamid counts on a condition
61 // variable to make the caller wait
62 // until some data is available
63
64
66
67 int MsgForStreamidCnt(int streamid);
68
69public:
72
73 inline bool IsMexEmpty() { return (MexSize() == 0); }
74 inline bool IsSemEmpty() { return (SemSize() == 0); }
75 inline int MexSize() {
77 return fMsgQue.GetSize();
78 }
80 inline int SemSize() {
82 return fSyncobjRepo.Num();
83 }
84
85 int WipeStreamid(int streamid);
86
87 XrdClientMessage *GetMsg(int streamid, int secstimeout);
88};
89#endif
#define XrdSysSemWait
Definition: XpdSysSemWait.h:8
#define XrdSysMutexHelper
Definition: XrdSysToOuc.h:17
#define XrdSysRecMutex
Definition: XrdSysToOuc.h:18
int MsgForStreamidCnt(int streamid)
XrdOucHash< XrdSysSemWait > fSyncobjRepo
XrdClientVector< XrdClientMessage * > fMsgQue
XrdSysSemWait * GetSyncObjOrMakeOne(int streamid)
XrdClientMessage * GetMsg(int streamid, int secstimeout)
int WipeStreamid(int streamid)
int PutMsg(XrdClientMessage *msg)