XRootD
Loading...
Searching...
No Matches
XrdSfsAio.hh
Go to the documentation of this file.
1
#ifndef __SFS_AIO_H__
2
#define __SFS_AIO_H__
3
/******************************************************************************/
4
/* */
5
/* X r d S f s A i o . h h */
6
/* */
7
/* (c) 2004 by the Board of Trustees of the Leland Stanford, Jr., University */
8
/* Produced by Andrew Hanushevsky for Stanford University under contract */
9
/* DE-AC02-76-SFO0515 with the Department of Energy */
10
/* */
11
/* This file is part of the XRootD software suite. */
12
/* */
13
/* XRootD is free software: you can redistribute it and/or modify it under */
14
/* the terms of the GNU Lesser General Public License as published by the */
15
/* Free Software Foundation, either version 3 of the License, or (at your */
16
/* option) any later version. */
17
/* */
18
/* XRootD is distributed in the hope that it will be useful, but WITHOUT */
19
/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
20
/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */
21
/* License for more details. */
22
/* */
23
/* You should have received a copy of the GNU Lesser General Public License */
24
/* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */
25
/* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */
26
/* */
27
/* The copyright holder's institutional names and contributor's names may not */
28
/* be used to endorse or promote products derived from this software without */
29
/* specific prior written permission of the institution or contributor. */
30
/******************************************************************************/
31
32
#include <cstdint>
33
#include <signal.h>
34
#include <sys/types.h>
35
// _POSIX_ASYNCHRONOUS_IO, if it is defined, is in unistd.h.
36
#include <unistd.h>
37
#ifdef _POSIX_ASYNCHRONOUS_IO
38
#ifdef __APPLE__
39
#include <AvailabilityMacros.h>
40
#include <sys/aio.h>
41
#else
42
#include <aio.h>
43
#endif
44
#else
45
struct
aiocb
{
// Minimal structure to avoid compiler errors
46
int
aio_fildes
;
47
void
*
aio_buf
;
48
size_t
aio_nbytes
;
49
off_t
aio_offset
;
50
int
aio_reqprio
;
51
struct
sigevent
aio_sigevent
;
52
};
53
#endif
54
55
// The XrdSfsAIO class is meant to be derived. This object provides the
56
// basic interface to handle AIO control block queues not processing.
57
//
58
class
XrdSfsAio
59
{
60
public
:
61
62
struct
aiocb
sfsAio
;
63
uint32_t *
cksVec
;
// For pgRead and pgWrite
64
65
ssize_t
Result
;
// If >= 0 valid result; else is -errno
66
67
const
char
*
TIdent
;
// Trace information (optional)
68
69
// Method to handle completed reads
70
//
71
virtual
void
doneRead
() = 0;
72
73
// Method to hand completed writes
74
//
75
virtual
void
doneWrite
() = 0;
76
77
// Method to recycle free object
78
//
79
virtual
void
Recycle
() = 0;
80
81
XrdSfsAio
() {
82
#if defined(__APPLE__) && (!defined(MAC_OS_X_VERSION_10_4) || \
83
MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_4)
84
sfsAio
.
aio_sigevent
.sigev_value.sigval_ptr = (
void
*)
this
;
85
#else
86
sfsAio
.
aio_sigevent
.sigev_value.sival_ptr = (
void
*)
this
;
87
#endif
88
sfsAio
.
aio_sigevent
.sigev_notify = SIGEV_SIGNAL;
89
sfsAio
.
aio_reqprio
= 0;
90
cksVec
= 0;
91
TIdent
=
""
;
92
}
93
virtual
~XrdSfsAio
() {}
94
};
95
#endif
aiocb::aio_offset
off_t aio_offset
Definition
XrdSfsAio.hh:49
aiocb::aio_nbytes
size_t aio_nbytes
Definition
XrdSfsAio.hh:48
aiocb::aio_sigevent
struct sigevent aio_sigevent
Definition
XrdSfsAio.hh:51
aiocb::aio_reqprio
int aio_reqprio
Definition
XrdSfsAio.hh:50
aiocb::aio_fildes
int aio_fildes
Definition
XrdSfsAio.hh:46
aiocb::aio_buf
void * aio_buf
Definition
XrdSfsAio.hh:47
aiocb
Definition
XrdSfsAio.hh:45
XrdSfsAio
Definition
XrdSfsAio.hh:59
XrdSfsAio::cksVec
uint32_t * cksVec
Definition
XrdSfsAio.hh:63
XrdSfsAio::Result
ssize_t Result
Definition
XrdSfsAio.hh:65
XrdSfsAio::TIdent
const char * TIdent
Definition
XrdSfsAio.hh:67
XrdSfsAio::XrdSfsAio
XrdSfsAio()
Definition
XrdSfsAio.hh:81
XrdSfsAio::~XrdSfsAio
virtual ~XrdSfsAio()
Definition
XrdSfsAio.hh:93
XrdSfsAio::Recycle
virtual void Recycle()=0
XrdSfsAio::doneRead
virtual void doneRead()=0
XrdSfsAio::sfsAio
struct aiocb sfsAio
Definition
XrdSfsAio.hh:62
XrdSfsAio::doneWrite
virtual void doneWrite()=0
XrdSfs
XrdSfsAio.hh
Generated by
1.11.0