private/XrdNet/XrdNetBuffer.hh

0001 #ifndef __NET_BUFF__
0002 #define __NET_BUFF__
0003 /******************************************************************************/
0004 /*                                                                            */
0005 /*                       X r d N e t B u f f e r . h h                        */
0006 /*                                                                            */
0007 /* (c) 2003 by the Board of Trustees of the Leland Stanford, Jr., University  */
0008 /*                            All Rights Reserved                             */
0009 /*   Produced by Andrew Hanushevsky for Stanford University under contract    */
0010 /*              DE-AC02-76-SFO0515 with the Department of Energy              */
0011 /*                                                                            */
0012 /* This file is part of the XRootD software suite.                            */
0013 /*                                                                            */
0014 /* XRootD is free software: you can redistribute it and/or modify it under    */
0015 /* the terms of the GNU Lesser General Public License as published by the     */
0016 /* Free Software Foundation, either version 3 of the License, or (at your     */
0017 /* option) any later version.                                                 */
0018 /*                                                                            */
0019 /* XRootD is distributed in the hope that it will be useful, but WITHOUT      */
0020 /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or      */
0021 /* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public       */
0022 /* License for more details.                                                  */
0023 /*                                                                            */
0024 /* You should have received a copy of the GNU Lesser General Public License   */
0025 /* along with XRootD in a file called COPYING.LESSER (LGPL license) and file  */
0026 /* COPYING (GPL license).  If not, see <http://www.gnu.org/licenses/>.        */
0027 /*                                                                            */
0028 /* The copyright holder's institutional names and contributor's names may not */
0029 /* be used to endorse or promote products derived from this software without  */
0030 /* specific prior written permission of the institution or contributor.       */
0031 /******************************************************************************/
0032
0033 #include <cstdlib>
0034
0035 #include "XrdOuc/XrdOucChain.hh"
0036 #include "XrdSys/XrdSysPthread.hh"
0037
0038 /******************************************************************************/
0039 /*                         X r d N e t B u f f e r Q                          */
0040 /******************************************************************************/
0041
0042 class XrdNetBuffer;
0043
0044 class XrdNetBufferQ
0045 {
0046 public:
0047
0048        XrdNetBuffer  *Alloc();
0049
0050 inline int            BuffSize(void) {return size;}
0051
0052        void           Recycle(XrdNetBuffer *bp);
0053
0054        void           Set(int maxb);
0055
0056        XrdNetBufferQ(int bsz, int maxb=16);
0057       ~XrdNetBufferQ();
0058
0059        int                       alignit;
0060        XrdSysMutex               BuffList;
0061        XrdOucStack<XrdNetBuffer> BuffStack;
0062        int                       maxbuff;
0063        int                       numbuff;
0064        int                       size;
0065 };
0066
0067 /******************************************************************************/
0068 /*                          X r d N e t B u f f e r                           */
0069 /******************************************************************************/
0070
0071 class XrdNetBuffer
0072 {
0073 friend class XrdNetBufferQ;
0074
0075 public:
0076        char         *data;
0077        int           dlen;
0078
0079 inline int           BuffSize(void) {return BuffQ->BuffSize();}
0080
0081        void          Recycle(void)  {BuffQ->Recycle(this);}
0082
0083       XrdNetBuffer(XrdNetBufferQ *bq);
0084      ~XrdNetBuffer() {if (data) free(data);}
0085
0086 private:
0087
0088       XrdOucQSItem<XrdNetBuffer> BuffLink;
0089       XrdNetBufferQ             *BuffQ;
0090 };
0091 #endif