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author | Ulrich Drepper <drepper@redhat.com> | 2002-12-16 23:38:42 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2002-12-16 23:38:42 +0000 |
commit | ad3bf20cbaea7854c5ade9b34c134c3a05a2b09e (patch) | |
tree | 3c9a841f2bf966e4da24b94dea52832d071b61df /sysdeps/unix/sysv/linux/sys/epoll.h | |
parent | 0a1063f471355de723393cb968ac9324de1d185d (diff) | |
download | glibc-ad3bf20cbaea7854c5ade9b34c134c3a05a2b09e.tar glibc-ad3bf20cbaea7854c5ade9b34c134c3a05a2b09e.tar.gz glibc-ad3bf20cbaea7854c5ade9b34c134c3a05a2b09e.tar.bz2 glibc-ad3bf20cbaea7854c5ade9b34c134c3a05a2b09e.zip |
Update.
* sysdeps/unix/sysv/linux/syscalls.list: Add epoll_create,
epoll_ctl, and epoll_wait.
* sysdeps/unix/sysv/linux/Versions [libc: GLIBC_2.3.2]: Add
epoll_create, epoll_ctl, and epoll_wait.
* sysdeps/unix/sysv/linux/sys/epoll.h: New file.
* sysdeps/unix/sysv/linux/Dist: Add sys/epoll.h.
* sysdeps/unix/sysv/linux/Makefile [subdir=misc] (sysdep_headers):
Add sys/epoll.h.
2002-12-16 Art Haas <ahaas@airmail.net>
* sysdeps/generic/bp-semctl.h: Convert GCC extension initializer
syntax to C99
* sysdeps/unix/sysv/aix/settimer.c: Same.
* sysdeps/unix/sysv/aix/sleep.c: Same.
* sysdeps/unix/sysv/aix/usleep.c: Same.
2002-12-16 Ulrich Drepper <drepper@redhat.com>
Diffstat (limited to 'sysdeps/unix/sysv/linux/sys/epoll.h')
-rw-r--r-- | sysdeps/unix/sysv/linux/sys/epoll.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sys/epoll.h b/sysdeps/unix/sysv/linux/sys/epoll.h new file mode 100644 index 0000000000..1add423ce1 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sys/epoll.h @@ -0,0 +1,102 @@ +/* Copyright (C) 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SYS_EPOLL_H +#define _SYS_EPOLL_H 1 + +#include <sys/types.h> + + +enum EPOLL_EVENTS + { + EPOLLIN = 0x001, +#define EPOLLIN EPOLLIN + EPOLLPRI = 0x002, +#define EPOLLPRI EPOLLPRI + EPOLLOUT = 0x004, +#define EPOLLOUT EPOLLOUT + EPOLLRDNORM = 0x040, +#define EPOLLRDNORM EPOLLRDNORM + EPOLLRDBAND = 0x080, +#define EPOLLRDBAND EPOLLRDBAND + EPOLLWRNORM = 0x100, +#define EPOLLWRNORM EPOLLWRNORM + EPOLLWRBAND = 0x200, +#define EPOLLWRBAND EPOLLWRBAND + EPOLLMSG = 0x400, +#define EPOLLMSG EPOLLMSG + EPOLLERR = 0x008, +#define EPOLLERR EPOLLERR + EPOLLHUP = 0x010 +#define EPOLLHUP EPOLLHUP + }; + + +/* Valid opcodes ( "op" parameter ) to issue to epoll_ctl(). */ +#define EPOLL_CTL_ADD 1 /* Add a file decriptor to the interface. */ +#define EPOLL_CTL_DEL 2 /* Remove a file decriptor from the interface. */ +#define EPOLL_CTL_MOD 3 /* Change file decriptor epoll_event structure. */ + + +typedef union epoll_data +{ + void *ptr; + int fd; + uint32_t u32; + uint64_t u64; +} epoll_data_t; + +struct epoll_event +{ + uint32_t events; /* Epoll events */ + epoll_data_t data; /* User data variable */ +}; + + +__BEGIN_DECLS + +/* Creates an epoll instance. Returns an fd for the new instance. + The "size" parameter is a hint specifying the number of file + descriptors to be associated with the new instance. The fd + returned by epoll_create() should be closed with close(). */ +extern int epoll_create (int __size) __THROW; + + +/* Manipulate an epoll instance "epfd". Returns 0 in case of success, + -1 in case of error ( the "errno" variable will contain the + specific error code ) The "op" parameter is one of the EPOLL_CTL_* + constants defined above. The "fd" parameter is the target of the + operation. The "event" parameter describes which events the caller + is interested in and any associated user data. */ +extern int epoll_ctl (int __epfd, int __op, int __fd, + struct epoll_event *__event) __THROW; + + +/* Wait for events on an epoll instance "epfd". Returns the number of + triggered events returned in "events" buffer. Or -1 in case of + error with the "errno" variable set to the specific error code. The + "events" parameter is a buffer that will contain triggered + events. The "maxevents" is the maximum number of events to be + returned ( usually size of "events" ). The "timeout" parameter + specifies the maximum wait time in milliseconds (-1 == infinite). */ +extern int epoll_wait (int __epfd, struct epoll_event *__events, + int __maxevents, int __timeout) __THROW; + +__END_DECLS + +#endif /* sys/epoll.h */ |