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Иван Мажукин
mpd
Commits
dff05c71
Commit
dff05c71
authored
Aug 07, 2013
by
Max Kellermann
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event/EPollFD: basic support for Linux epoll
parent
f6f47424
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4 changed files
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114 additions
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0 deletions
+114
-0
Makefile.am
Makefile.am
+1
-0
configure.ac
configure.ac
+1
-0
EPollFD.cxx
src/system/EPollFD.cxx
+32
-0
EPollFD.hxx
src/system/EPollFD.hxx
+80
-0
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Makefile.am
View file @
dff05c71
...
...
@@ -289,6 +289,7 @@ libsystem_a_SOURCES = \
src/system/EventPipe.cxx src/system/EventPipe.hxx
\
src/system/EventFD.cxx src/system/EventFD.hxx
\
src/system/SignalFD.cxx src/system/SignalFD.hxx
\
src/system/EPollFD.cxx src/system/EPollFD.hxx
\
src/system/clock.c src/system/clock.h
# Event loop library
...
...
configure.ac
View file @
dff05c71
...
...
@@ -142,6 +142,7 @@ AC_SEARCH_LIBS([gethostbyname], [nsl])
AC_CHECK_FUNCS(pipe2 accept4)
MPD_OPTIONAL_FUNC(eventfd, eventfd, USE_EVENTFD)
MPD_OPTIONAL_FUNC(signalfd, signalfd, USE_SIGNALFD)
MPD_OPTIONAL_FUNC(epoll, epoll_create1, USE_EPOLL)
AC_SEARCH_LIBS([exp], [m],,
[AC_MSG_ERROR([exp() not found])])
...
...
src/system/EPollFD.cxx
0 → 100644
View file @
dff05c71
/*
* Copyright (C) 2003-2013 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#ifdef USE_EPOLL
#include "EPollFD.hxx"
#include "FatalError.hxx"
EPollFD
::
EPollFD
()
:
fd
(
::
epoll_create1
(
EPOLL_CLOEXEC
))
{
if
(
fd
<
0
)
FatalSystemError
(
"epoll_create1() failed"
);
}
#endif
/* USE_EPOLL */
src/system/EPollFD.hxx
0 → 100644
View file @
dff05c71
/*
* Copyright (C) 2003-2013 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_EPOLL_FD_HXX
#define MPD_EPOLL_FD_HXX
#include <assert.h>
#include <sys/epoll.h>
#include <unistd.h>
#include "check.h"
struct
epoll_event
;
/**
* A class that wraps Linux epoll.
*
* Errors in the constructor are fatal.
*/
class
EPollFD
{
const
int
fd
;
public
:
EPollFD
();
~
EPollFD
()
{
assert
(
fd
>=
0
);
::
close
(
fd
);
}
EPollFD
(
const
EPollFD
&
other
)
=
delete
;
EPollFD
&
operator
=
(
const
EPollFD
&
other
)
=
delete
;
int
Wait
(
epoll_event
*
events
,
int
maxevents
,
int
timeout
)
{
return
::
epoll_wait
(
fd
,
events
,
maxevents
,
timeout
);
}
bool
Control
(
int
op
,
int
_fd
,
epoll_event
*
event
)
{
return
::
epoll_ctl
(
fd
,
op
,
_fd
,
event
)
>=
0
;
}
bool
Add
(
int
_fd
,
uint32_t
events
,
void
*
ptr
)
{
epoll_event
e
;
e
.
events
=
events
;
e
.
data
.
ptr
=
ptr
;
return
Control
(
EPOLL_CTL_DEL
,
_fd
,
&
e
);
}
bool
Modify
(
int
_fd
,
uint32_t
events
,
void
*
ptr
)
{
epoll_event
e
;
e
.
events
=
events
;
e
.
data
.
ptr
=
ptr
;
return
Control
(
EPOLL_CTL_MOD
,
_fd
,
&
e
);
}
bool
Remove
(
int
_fd
)
{
return
Control
(
EPOLL_CTL_DEL
,
_fd
,
nullptr
);
}
};
#endif
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