#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/limits.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/types.h>
#include <sys/user.h>
#include <sys/fcntl.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/filio.h>
#include <sys/stat.h>
#include <sys/errno.h>
#include <sys/event.h>
#include <sys/poll.h>
#include <sys/proc.h>
#include <sys/uio.h>
#include <sys/selinfo.h>
#include <sys/eventfd.h>
#include <security/audit/audit.h>

Include dependency graph for sys_eventfd.c:

Data Structures
struct	eventfd

Functions
	__FBSDID ("$FreeBSD$")

	_Static_assert (EFD_CLOEXEC==O_CLOEXEC, "Mismatched EFD_CLOEXEC")

	_Static_assert (EFD_NONBLOCK==O_NONBLOCK, "Mismatched EFD_NONBLOCK")

	MALLOC_DEFINE (M_EVENTFD, "eventfd", "eventfd structures")

static void	filt_eventfddetach (struct knote *kn)

static int	filt_eventfdread (struct knote *kn, long hint)

static int	filt_eventfdwrite (struct knote *kn, long hint)

int	eventfd_create_file (struct thread td, struct file fp, uint32_t initval, int flags)

static int	eventfd_close (struct file fp, struct thread td)

static int	eventfd_read (struct file fp, struct uio uio, struct ucred active_cred, int flags, struct thread td)

static int	eventfd_write (struct file fp, struct uio uio, struct ucred active_cred, int flags, struct thread td)

static int	eventfd_poll (struct file fp, int events, struct ucred active_cred, struct thread *td)

static int	eventfd_kqfilter (struct file fp, struct knote kn)

static int	eventfd_ioctl (struct file fp, u_long cmd, void data, struct ucred active_cred, struct thread td)

static int	eventfd_stat (struct file fp, struct stat st, struct ucred *active_cred)

static int	eventfd_fill_kinfo (struct file fp, struct kinfo_file kif, struct filedesc *fdp)

Variables
static fo_rdwr_t	eventfd_read

static fo_rdwr_t	eventfd_write

static fo_ioctl_t	eventfd_ioctl

static fo_poll_t	eventfd_poll

static fo_kqfilter_t	eventfd_kqfilter

static fo_stat_t	eventfd_stat

static fo_close_t	eventfd_close

static fo_fill_kinfo_t	eventfd_fill_kinfo

static struct fileops	eventfdops

static struct filterops	eventfd_rfiltops

static struct filterops	eventfd_wfiltops

Function Documentation

◆ __FBSDID()

__FBSDID ( "$FreeBSD$" )

◆ _Static_assert() [1/2]

_Static_assert	(	EFD_CLOEXEC	= `=O_CLOEXEC`,
		"Mismatched EFD_CLOEXEC"
	)

◆ _Static_assert() [2/2]

_Static_assert	(	EFD_NONBLOCK	= `=O_NONBLOCK`,
		"Mismatched EFD_NONBLOCK"
	)

◆ eventfd_close()

static int eventfd_close	(	struct file *	fp,
		struct thread *	td
	)

static

Definition at line 133 of file sys_eventfd.c.

References eventfd::efd_lock, eventfd::efd_sel, free(), knlist_destroy(), and seldrain().

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◆ eventfd_create_file()

int eventfd_create_file	(	struct thread *	td,
		struct file *	fp,
		uint32_t	initval,
		int	flags
	)

Definition at line 109 of file sys_eventfd.c.

References eventfd::efd_count, eventfd::efd_flags, eventfd::efd_lock, eventfd::efd_sel, eventfdops, finit(), flags, knlist_init_mtx(), and malloc().

Referenced by kern_specialfd().

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◆ eventfd_fill_kinfo()

static int eventfd_fill_kinfo	(	struct file *	fp,
		struct kinfo_file *	kif,
		struct filedesc *	fdp
	)

static

Definition at line 336 of file sys_eventfd.c.

References eventfd::efd_count, eventfd::efd_flags, and eventfd::efd_lock.

◆ eventfd_ioctl()

static int eventfd_ioctl	(	struct file *	fp,
		u_long	cmd,
		void *	data,
		struct ucred *	active_cred,
		struct thread *	td
	)

static

Definition at line 315 of file sys_eventfd.c.

◆ eventfd_kqfilter()

static int eventfd_kqfilter	(	struct file *	fp,
		struct knote *	kn
	)

static

Definition at line 254 of file sys_eventfd.c.

References eventfd::efd_lock, eventfd::efd_sel, eventfd_rfiltops, eventfd_wfiltops, and knlist_add().

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◆ eventfd_poll()

static int eventfd_poll	(	struct file *	fp,
		int	events,
		struct ucred *	active_cred,
		struct thread *	td
	)

static

Definition at line 232 of file sys_eventfd.c.

References eventfd::efd_count, eventfd::efd_lock, eventfd::efd_sel, and selrecord().

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◆ eventfd_read()

static int eventfd_read	(	struct file *	fp,
		struct uio *	uio,
		struct ucred *	active_cred,
		int	flags,
		struct thread *	td
	)

static

Definition at line 146 of file sys_eventfd.c.

References count, eventfd::efd_count, eventfd::efd_flags, eventfd::efd_lock, eventfd::efd_sel, selwakeup(), uiomove(), and wakeup().

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◆ eventfd_stat()

static int eventfd_stat	(	struct file *	fp,
		struct stat *	st,
		struct ucred *	active_cred
	)

static

Definition at line 328 of file sys_eventfd.c.

References st.

◆ eventfd_write()

static int eventfd_write	(	struct file *	fp,
		struct uio *	uio,
		struct ucred *	active_cred,
		int	flags,
		struct thread *	td
	)

static

Definition at line 188 of file sys_eventfd.c.

References count, eventfd::efd_count, eventfd::efd_lock, eventfd::efd_sel, selwakeup(), uiomove(), and wakeup().

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◆ filt_eventfddetach()

static void filt_eventfddetach ( struct knote * kn )

static

Definition at line 279 of file sys_eventfd.c.

References eventfd::efd_lock, eventfd::efd_sel, and knlist_remove().

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◆ filt_eventfdread()

static int filt_eventfdread	(	struct knote *	kn,
		long	hint
	)

static

Definition at line 289 of file sys_eventfd.c.

References eventfd::efd_count, and eventfd::efd_lock.

◆ filt_eventfdwrite()

static int filt_eventfdwrite	(	struct knote *	kn,
		long	hint
	)

static

Definition at line 302 of file sys_eventfd.c.

References eventfd::efd_count, and eventfd::efd_lock.

◆ MALLOC_DEFINE()

MALLOC_DEFINE	(	M_EVENTFD	,
		"eventfd"	,
		"eventfd structures"
	)

Variable Documentation

◆ eventfd_close

fo_close_t eventfd_close

static

Definition at line 66 of file sys_eventfd.c.

◆ eventfd_fill_kinfo

fo_fill_kinfo_t eventfd_fill_kinfo

static

Definition at line 67 of file sys_eventfd.c.

◆ eventfd_ioctl

fo_ioctl_t eventfd_ioctl

static

Definition at line 62 of file sys_eventfd.c.

◆ eventfd_kqfilter

fo_kqfilter_t eventfd_kqfilter

static

Definition at line 64 of file sys_eventfd.c.

◆ eventfd_poll

fo_poll_t eventfd_poll

static

Definition at line 63 of file sys_eventfd.c.

◆ eventfd_read

fo_rdwr_t eventfd_read

static

Definition at line 60 of file sys_eventfd.c.

◆ eventfd_rfiltops

struct filterops eventfd_rfiltops

static

Initial value:

= {
        .f_isfd = 1,
        .f_detach = filt_eventfddetach,
        .f_event = filt_eventfdread
}

Definition at line 89 of file sys_eventfd.c.

Referenced by eventfd_kqfilter().

◆ eventfd_stat

fo_stat_t eventfd_stat

static

Definition at line 65 of file sys_eventfd.c.

◆ eventfd_wfiltops

struct filterops eventfd_wfiltops

static

Initial value:

= {
        .f_isfd = 1,
        .f_detach = filt_eventfddetach,
        .f_event = filt_eventfdwrite
}

Definition at line 95 of file sys_eventfd.c.

Referenced by eventfd_kqfilter().

◆ eventfd_write

fo_rdwr_t eventfd_write

static

Definition at line 61 of file sys_eventfd.c.

◆ eventfdops

struct fileops eventfdops

static

Initial value:

= {
        .fo_read = eventfd_read,
        .fo_write = eventfd_write,
        .fo_truncate = invfo_truncate,
        .fo_ioctl = eventfd_ioctl,
        .fo_poll = eventfd_poll,
        .fo_kqfilter = eventfd_kqfilter,
        .fo_stat = eventfd_stat,
        .fo_close = eventfd_close,
        .fo_chmod = invfo_chmod,
        .fo_chown = invfo_chown,
        .fo_sendfile = invfo_sendfile,
        .fo_fill_kinfo = eventfd_fill_kinfo,
        .fo_flags = DFLAG_PASSABLE
}

Definition at line 69 of file sys_eventfd.c.

Referenced by eventfd_create_file().

Data Structures

Functions

Variables

Function Documentation

◆ __FBSDID()

◆ _Static_assert() [1/2]

◆ _Static_assert() [2/2]

◆ eventfd_close()

◆ eventfd_create_file()

◆ eventfd_fill_kinfo()

◆ eventfd_ioctl()

◆ eventfd_kqfilter()

◆ eventfd_poll()

◆ eventfd_read()

◆ eventfd_stat()

◆ eventfd_write()

◆ filt_eventfddetach()

◆ filt_eventfdread()

◆ filt_eventfdwrite()

◆ MALLOC_DEFINE()

Variable Documentation

◆ eventfd_close

◆ eventfd_fill_kinfo

◆ eventfd_ioctl

◆ eventfd_kqfilter

◆ eventfd_poll

◆ eventfd_read

◆ eventfd_rfiltops

◆ eventfd_stat

◆ eventfd_wfiltops

◆ eventfd_write

◆ eventfdops