xrootd
XrdClientReadV.hh
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1 #ifndef XRD_CLIENT_READV
2 #define XRD_CLIENT_READV
3 /******************************************************************************/
4 /* */
5 /* X r d C l i e n t R e a d V . h h */
6 /* */
7 /* Author: Fabrizio Furano (INFN Padova, 2006) */
8 /* */
9 /* This file is part of the XRootD software suite. */
10 /* */
11 /* XRootD is free software: you can redistribute it and/or modify it under */
12 /* the terms of the GNU Lesser General Public License as published by the */
13 /* Free Software Foundation, either version 3 of the License, or (at your */
14 /* option) any later version. */
15 /* */
16 /* XRootD is distributed in the hope that it will be useful, but WITHOUT */
17 /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
18 /* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */
19 /* License for more details. */
20 /* */
21 /* You should have received a copy of the GNU Lesser General Public License */
22 /* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */
23 /* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */
24 /* */
25 /* The copyright holder's institutional names and contributor's names may not */
26 /* be used to endorse or promote products derived from this software without */
27 /* specific prior written permission of the institution or contributor. */
28 /******************************************************************************/
29 
31 // //
32 // Helper functions for the vectored read functionality //
33 // //
35 
36 class XrdClientConn;
37 #include "XProtocol/XPtypes.hh"
38 #include "XProtocol/XProtocol.hh"
40 
44 };
45 
47 public:
48 
49  // Builds a request and sends it to the server
50  // If destbuf == 0 the request is sent asynchronously
51  static kXR_int64 ReqReadV(XrdClientConn *xrdc, char *handle, char *destbuf,
53  int firstreq, int nreq, int streamtosend);
54 
55  // Picks a readv response and puts the individual chunks into the dest buffer
56  static kXR_int32 UnpackReadVResp(char *destbuf, char *respdata, kXR_int32 respdatalen,
57  readahead_list *buflis, int nbuf);
58 
59  // Picks a readv response and puts the individual chunks into the cache
60  static kXR_int32 SubmitToCacheReadVResp(XrdClientConn *xrdc, char *respdata,
61  kXR_int32 respdatalen);
62 
64  kXR_int64 offs, kXR_int32 len,
65  kXR_int64 filelen);
66 
68  kXR_int64 offs, kXR_int32 len,
69  kXR_int64 filelen,
70  kXR_int32 spltsize);
71 };
72 #endif
kXR_int32
int kXR_int32
Definition: XPtypes.hh:89
XrdClientReadV::PreProcessChunkRequest
static void PreProcessChunkRequest(XrdClientVector< XrdClientReadVinfo > &reqvect, kXR_int64 offs, kXR_int32 len, kXR_int64 filelen)
kXR_int64
long long kXR_int64
Definition: XPtypes.hh:98
XrdClientConn
Definition: XrdClientConn.hh:54
XrdClientReadVinfo::offset
kXR_int64 offset
Definition: XrdClientReadV.hh:42
readahead_list
Definition: XProtocol.hh:669
XrdClientReadVinfo
Definition: XrdClientReadV.hh:41
XrdClientReadVinfo::len
kXR_int32 len
Definition: XrdClientReadV.hh:43
XProtocol.hh
XrdClientVector
Definition: XrdClientVector.hh:49
XrdClientVector.hh
XrdClientReadV::SubmitToCacheReadVResp
static kXR_int32 SubmitToCacheReadVResp(XrdClientConn *xrdc, char *respdata, kXR_int32 respdatalen)
XrdClientReadV
Definition: XrdClientReadV.hh:46
XrdClientReadV::UnpackReadVResp
static kXR_int32 UnpackReadVResp(char *destbuf, char *respdata, kXR_int32 respdatalen, readahead_list *buflis, int nbuf)
XrdClientReadV::ReqReadV
static kXR_int64 ReqReadV(XrdClientConn *xrdc, char *handle, char *destbuf, XrdClientVector< XrdClientReadVinfo > &reqvect, int firstreq, int nreq, int streamtosend)
XPtypes.hh