eventpoll.c File Reference

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/signal.h>
#include <linux/errno.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/string.h>
#include <linux/list.h>
#include <linux/hash.h>
#include <linux/spinlock.h>
#include <linux/syscalls.h>
#include <linux/rbtree.h>
#include <linux/wait.h>
#include <linux/eventpoll.h>
#include <linux/mount.h>
#include <linux/bitops.h>
#include <linux/mutex.h>
#include <linux/anon_inodes.h>
#include <linux/device.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/mman.h>
#include <linux/atomic.h>

Go to the source code of this file.

Data Structures
struct	epoll_filefd
struct	nested_call_node
struct	nested_calls
struct	epitem
struct	eventpoll
struct	eppoll_entry
struct	ep_pqueue
struct	ep_send_events_data

Macros
#define	EP_PRIVATE_BITS   (EPOLLWAKEUP | EPOLLONESHOT | EPOLLET)
#define	EP_MAX_NESTS   4
#define	EP_MAX_EVENTS   (INT_MAX / sizeof(struct epoll_event))
#define	EP_UNACTIVE_PTR   ((void *) -1L)
#define	EP_ITEM_COST   (sizeof(struct epitem) + sizeof(struct eppoll_entry))
#define	PATH_ARR_SIZE   5

Functions
void	eventpoll_release_file (struct file *file)
	SYSCALL_DEFINE1 (epoll_create1, int, flags)
	SYSCALL_DEFINE1 (epoll_create, int, size)
	SYSCALL_DEFINE4 (epoll_ctl, int, epfd, int, op, int, fd, struct epoll_event __user *, event)
	SYSCALL_DEFINE4 (epoll_wait, int, epfd, struct epoll_event __user *, events, int, maxevents, int, timeout)
	SYSCALL_DEFINE6 (epoll_pwait, int, epfd, struct epoll_event __user *, events, int, maxevents, int, timeout, const sigset_t __user *, sigmask, size_t, sigsetsize)
	fs_initcall (eventpoll_init)

Detailed Description

ep_loop_check - Performs a check to verify that adding an epoll file ( another epoll file (represented by ) does not create closed loops or too deep chains.

: Pointer to the epoll private data structure.

Definition in file eventpoll.c.

Macro Definition Documentation

#define EP_ITEM_COST   (sizeof(struct epitem) + sizeof(struct eppoll_entry))

Definition at line 100 of file eventpoll.c.

#define EP_MAX_EVENTS   (INT_MAX / sizeof(struct epoll_event))

Definition at line 96 of file eventpoll.c.

#define EP_MAX_NESTS   4

Definition at line 94 of file eventpoll.c.

#define EP_PRIVATE_BITS   (EPOLLWAKEUP | EPOLLONESHOT | EPOLLET)

Definition at line 91 of file eventpoll.c.

#define EP_UNACTIVE_PTR   ((void *) -1L)

Definition at line 98 of file eventpoll.c.

#define PATH_ARR_SIZE   5

Definition at line 1025 of file eventpoll.c.

Function Documentation

void eventpoll_release_file

(

struct file *

file

)

Definition at line 798 of file eventpoll.c.

fs_initcall

(

eventpoll_init

)

SYSCALL_DEFINE1	(	epoll_create1	,
		int	,
		flags
	)

Definition at line 1625 of file eventpoll.c.

SYSCALL_DEFINE1	(	epoll_create	,
		int	,
		size
	)

Definition at line 1668 of file eventpoll.c.

SYSCALL_DEFINE4	(	epoll_ctl	,
		int	,
		epfd	,
		int	,
		op	,
		int	,
		fd	,
		struct epoll_event __user *	,
		event
	)

Definition at line 1681 of file eventpoll.c.

SYSCALL_DEFINE4	(	epoll_wait	,
		int	,
		epfd	,
		struct epoll_event __user *	,
		events	,
		int	,
		maxevents	,
		int	,
		timeout
	)

Definition at line 1809 of file eventpoll.c.

SYSCALL_DEFINE6	(	epoll_pwait	,
		int	,
		epfd	,
		struct epoll_event __user *	,
		events	,
		int	,
		maxevents	,
		int	,
		timeout	,
		const sigset_t __user *	,
		sigmask	,
		size_t	,
		sigsetsize
	)

Definition at line 1855 of file eventpoll.c.