#include <sys/cdefs.h>
#include "opt_capsicum.h"
#include "opt_ktrace.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/sysproto.h>
#include <sys/capsicum.h>
#include <sys/filedesc.h>
#include <sys/filio.h>
#include <sys/fcntl.h>
#include <sys/file.h>
#include <sys/lock.h>
#include <sys/proc.h>
#include <sys/signalvar.h>
#include <sys/socketvar.h>
#include <sys/uio.h>
#include <sys/eventfd.h>
#include <sys/kernel.h>
#include <sys/ktr.h>
#include <sys/limits.h>
#include <sys/malloc.h>
#include <sys/poll.h>
#include <sys/resourcevar.h>
#include <sys/selinfo.h>
#include <sys/sleepqueue.h>
#include <sys/specialfd.h>
#include <sys/syscallsubr.h>
#include <sys/sysctl.h>
#include <sys/sysent.h>
#include <sys/vnode.h>
#include <sys/bio.h>
#include <sys/buf.h>
#include <sys/condvar.h>
#include <security/audit/audit.h>

Include dependency graph for sys_generic.c:

Data Structures
struct	seltd

struct	selfd

struct	read_args

struct	pread_args

struct	readv_args

struct	preadv_args

struct	write_args

struct	pwrite_args

struct	writev_args

struct	pwritev_args

struct	ftruncate_args

struct	ioctl_args

struct	select_args

Macros
#define	SYS_IOCTL_SMALL_SIZE 128 /* bytes */

#define	SYS_IOCTL_SMALL_ALIGN 8 /* bytes */

#define	SELTD_PENDING 0x0001 /* We have pending events. */

#define	SELTD_RESCAN 0x0002 /* Doing a rescan. */

#define	getbits(name, x)

#define	swizzle_fdset(bits)

#define	putbits(name, x)

Functions
	__FBSDID ("$FreeBSD$")

	CTASSERT (sizeof(register_t) >=sizeof(size_t))

static	MALLOC_DEFINE (M_IOCTLOPS, "ioctlops", "ioctl data buffer")

static	MALLOC_DEFINE (M_SELECT, "select", "select() buffer")

	MALLOC_DEFINE (M_IOV, "iov", "large iov's")

static int	pollout (struct thread , struct pollfd , struct pollfd *, u_int)

static int	pollscan (struct thread , struct pollfd , u_int)

static int	pollrescan (struct thread *)

static int	selscan (struct thread , fd_mask , fd_mask *, int)

static int	selrescan (struct thread , fd_mask , fd_mask *)

static void	selfdalloc (struct thread , void )

static void	selfdfree (struct seltd , struct selfd )

static int	dofileread (struct thread , int, struct file , struct uio *, off_t, int)

static int	dofilewrite (struct thread , int, struct file , struct uio *, off_t, int)

static void	doselwakeup (struct selinfo *, int)

static void	seltdinit (struct thread *)

static int	seltdwait (struct thread *, sbintime_t, sbintime_t)

static void	seltdclear (struct thread *)

	MALLOC_DEFINE (M_SELFD, "selfd", "selfd")

int	sys_read (struct thread td, struct read_args uap)

int	sys_pread (struct thread td, struct pread_args uap)

int	kern_pread (struct thread td, int fd, void buf, size_t nbyte, off_t offset)

int	sys_readv (struct thread td, struct readv_args uap)

int	kern_readv (struct thread td, int fd, struct uio auio)

int	sys_preadv (struct thread td, struct preadv_args uap)

int	kern_preadv (struct thread td, int fd, struct uio auio, off_t offset)

int	sys_write (struct thread td, struct write_args uap)

int	sys_pwrite (struct thread td, struct pwrite_args uap)

int	kern_pwrite (struct thread td, int fd, const void buf, size_t nbyte, off_t offset)

int	sys_writev (struct thread td, struct writev_args uap)

int	kern_writev (struct thread td, int fd, struct uio auio)

int	sys_pwritev (struct thread td, struct pwritev_args uap)

int	kern_pwritev (struct thread td, int fd, struct uio auio, off_t offset)

int	kern_ftruncate (struct thread *td, int fd, off_t length)

int	sys_ftruncate (struct thread td, struct ftruncate_args uap)

int	sys_ioctl (struct thread td, struct ioctl_args uap)

int	kern_ioctl (struct thread *td, int fd, u_long com, caddr_t data)

int	sys_posix_fallocate (struct thread td, struct posix_fallocate_args uap)

int	kern_posix_fallocate (struct thread *td, int fd, off_t offset, off_t len)

int	sys_fspacectl (struct thread td, struct fspacectl_args uap)

int	kern_fspacectl (struct thread td, int fd, int cmd, const struct spacectl_range rqsr, int flags, struct spacectl_range *rmsrp)

int	kern_specialfd (struct thread td, int type, void arg)

int	sys___specialfd (struct thread td, struct __specialfd_args args)

int	poll_no_poll (int events)

int	sys_pselect (struct thread td, struct pselect_args uap)

int	kern_pselect (struct thread td, int nd, fd_set in, fd_set ou, fd_set ex, struct timeval tvp, sigset_t uset, int abi_nfdbits)

int	sys_select (struct thread td, struct select_args uap)

static int	select_check_badfd (fd_set *fd_in, int nd, int ndu, int abi_nfdbits)

int	kern_select (struct thread td, int nd, fd_set fd_in, fd_set fd_ou, fd_set fd_ex, struct timeval *tvp, int abi_nfdbits)

static __inline int	selflags (fd_mask **ibits, int idx, fd_mask bit)

static __inline int	selsetbits (fd_mask ibits, fd_mask obits, int idx, fd_mask bit, int events)

int	sys_poll (struct thread td, struct poll_args uap)

int	kern_poll_kfds (struct thread td, struct pollfd kfds, u_int nfds, struct timespec tsp, sigset_t uset)

int	sys_ppoll (struct thread td, struct ppoll_args uap)

int	kern_poll (struct thread td, struct pollfd ufds, u_int nfds, struct timespec tsp, sigset_t set)

bool	kern_poll_maxfds (u_int nfds)

int	selsocket (struct socket so, int events, struct timeval tvp, struct thread *td)

void	seldrain (struct selinfo *sip)

void	selrecord (struct thread selector, struct selinfo sip)

void	selwakeup (struct selinfo *sip)

void	selwakeuppri (struct selinfo *sip, int pri)

void	seltdfini (struct thread *td)

static void	selectinit (void *)

	SYSINIT (select, SI_SUB_SYSCALLS, SI_ORDER_ANY, selectinit, NULL)

static void	selectinit (void *dummy __unused)

int	kern_posix_error (struct thread *td, int error)

Variables
static struct mtx_pool *	mtxpool_select

static const int	select_flags [3]

Macro Definition Documentation

◆ getbits

#define getbits	(	name,
		x
	)

Value:

        do {                                                            \
                if (name == NULL) {                                     \
                        ibits[x] = NULL;                                \
                        obits[x] = NULL;                                \
                } else {                                                \
                        ibits[x] = sbp + nbufbytes / 2 / sizeof *sbp;   \
                        obits[x] = sbp;                                 \
                        sbp += ncpbytes / sizeof *sbp;                  \
                        error = copyin(name, ibits[x], ncpubytes);      \
                        if (error != 0)                                 \
                                goto done;                              \
                        if (ncpbytes != ncpubytes)                      \
                                bzero((char *)ibits[x] + ncpubytes,     \
                                    ncpbytes - ncpubytes);              \
                }                                                       \
        } while (0)

◆ putbits

#define putbits	(	name,
		x
	)

Value:

if (name && (error2 = copyout(obits[x], name, ncpubytes))) \

error = error2;

◆ SELTD_PENDING

#define SELTD_PENDING 0x0001 /* We have pending events. */

Definition at line 147 of file sys_generic.c.

◆ SELTD_RESCAN

#define SELTD_RESCAN 0x0002 /* Doing a rescan. */

Definition at line 148 of file sys_generic.c.

◆ swizzle_fdset

#define swizzle_fdset ( bits )

◆ SYS_IOCTL_SMALL_ALIGN

#define SYS_IOCTL_SMALL_ALIGN 8 /* bytes */

Definition at line 93 of file sys_generic.c.

◆ SYS_IOCTL_SMALL_SIZE

#define SYS_IOCTL_SMALL_SIZE 128 /* bytes */

Definition at line 92 of file sys_generic.c.

Function Documentation

◆ __FBSDID()

__FBSDID ( "$FreeBSD$" )

◆ CTASSERT()

CTASSERT ( sizeof(register_t) >=sizeof(size_t) )

◆ dofileread()

static int dofileread	(	struct thread *	td,
		int	fd,
		struct file *	fp,
		struct uio *	auio,
		off_t	offset,
		int	flags
	)

static

Definition at line 345 of file sys_generic.c.

References cloneuio(), fd, and flags.

Referenced by kern_preadv(), and kern_readv().

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◆ dofilewrite()

static int dofilewrite	(	struct thread *	td,
		int	fd,
		struct file *	fp,
		struct uio *	auio,
		off_t	offset,
		int	flags
	)

static

Definition at line 547 of file sys_generic.c.

References cloneuio(), fd, flags, and tdsignal().

Referenced by kern_pwritev(), and kern_writev().

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◆ doselwakeup()

static void doselwakeup	(	struct selinfo *	sip,
		int	pri
	)

static

Definition at line 1933 of file sys_generic.c.

References cv_broadcastpri(), and SELTD_PENDING.

Referenced by seldrain(), selwakeup(), and selwakeuppri().

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◆ kern_fspacectl()

int kern_fspacectl	(	struct thread *	td,
		int	fd,
		int	cmd,
		const struct spacectl_range *	rqsr,
		int	flags,
		struct spacectl_range *	rmsrp
	)

Definition at line 885 of file sys_generic.c.

References cap_pwrite_rights, fd, fget_write(), and flags.

Referenced by sys_fspacectl().

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◆ kern_ftruncate()

int kern_ftruncate	(	struct thread *	td,
		int	fd,
		off_t	length
	)

Definition at line 594 of file sys_generic.c.

References cap_ftruncate_rights, fd, and fget().

Referenced by sys_ftruncate().

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◆ kern_ioctl()

int kern_ioctl	(	struct thread *	td,
		int	fd,
		u_long	com,
		caddr_t	data
	)

Definition at line 723 of file sys_generic.c.

References cap_ioctl_rights, data, fd, and fget().

Referenced by parse_dir_md(), and sys_ioctl().

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◆ kern_poll()

int kern_poll	(	struct thread *	td,
		struct pollfd *	ufds,
		u_int	nfds,
		struct timespec *	tsp,
		sigset_t *	set
	)

Definition at line 1594 of file sys_generic.c.

References free(), kern_poll_kfds(), kern_poll_maxfds(), mallocarray(), pollout(), and set.

Referenced by sys_poll(), and sys_ppoll().

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◆ kern_poll_kfds()

int kern_poll_kfds	(	struct thread *	td,
		struct pollfd *	kfds,
		u_int	nfds,
		struct timespec *	tsp,
		sigset_t *	uset
	)

Definition at line 1494 of file sys_generic.c.

References kern_sigprocmask(), pollrescan(), pollscan(), seltdclear(), seltdinit(), seltdwait(), tc_precexp, tc_tick_sbt, and ts.

Referenced by kern_poll().

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◆ kern_poll_maxfds()

bool kern_poll_maxfds ( u_int nfds )

Definition at line 1622 of file sys_generic.c.

References maxfilesperproc.

Referenced by kern_poll().

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◆ kern_posix_error()

int kern_posix_error	(	struct thread *	td,
		int	error
	)

Definition at line 2070 of file sys_generic.c.

Referenced by sys_clock_nanosleep(), sys_posix_fadvise(), and sys_posix_fallocate().

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◆ kern_posix_fallocate()

int kern_posix_fallocate	(	struct thread *	td,
		int	fd,
		off_t	offset,
		off_t	len
	)

Definition at line 833 of file sys_generic.c.

References cap_pwrite_rights, fd, and fget().

Referenced by sys_posix_fallocate().

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◆ kern_pread()

int kern_pread	(	struct thread *	td,
		int	fd,
		void *	buf,
		size_t	nbyte,
		off_t	offset
	)

Definition at line 230 of file sys_generic.c.

References buf, fd, and kern_preadv().

Referenced by sys_pread().

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◆ kern_preadv()

int kern_preadv	(	struct thread *	td,
		int	fd,
		struct uio *	auio,
		off_t	offset
	)

Definition at line 321 of file sys_generic.c.

References cap_pread_rights, dofileread(), fd, and fget_read().

Referenced by kern_pread(), and sys_preadv().

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◆ kern_pselect()

int kern_pselect	(	struct thread *	td,
		int	nd,
		fd_set *	in,
		fd_set *	ou,
		fd_set *	ex,
		struct timeval *	tvp,
		sigset_t *	uset,
		int	abi_nfdbits
	)

Definition at line 1039 of file sys_generic.c.

References kern_select(), and kern_sigprocmask().

Referenced by sys_pselect().

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◆ kern_pwrite()

int kern_pwrite	(	struct thread *	td,
		int	fd,
		const void *	buf,
		size_t	nbyte,
		off_t	offset
	)

Definition at line 431 of file sys_generic.c.

References buf, fd, and kern_pwritev().

Referenced by sys_pwrite().

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◆ kern_pwritev()

int kern_pwritev	(	struct thread *	td,
		int	fd,
		struct uio *	auio,
		off_t	offset
	)

Definition at line 523 of file sys_generic.c.

References cap_pwrite_rights, dofilewrite(), fd, and fget_write().

Referenced by kern_pwrite(), and sys_pwritev().

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◆ kern_readv()

int kern_readv	(	struct thread *	td,
		int	fd,
		struct uio *	auio
	)

Definition at line 282 of file sys_generic.c.

References cap_read_rights, dofileread(), fd, and fget_read().

Referenced by sys_read(), and sys_readv().

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◆ kern_select()

int kern_select	(	struct thread *	td,
		int	nd,
		fd_set *	fd_in,
		fd_set *	fd_ou,
		fd_set *	fd_ex,
		struct timeval *	tvp,
		int	abi_nfdbits
	)

Definition at line 1137 of file sys_generic.c.

References free(), getbits, malloc(), putbits, select_check_badfd(), selrescan(), selscan(), seltdclear(), seltdinit(), seltdwait(), swizzle_fdset, tc_precexp, and tc_tick_sbt.

Referenced by kern_pselect(), and sys_select().

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◆ kern_specialfd()

int kern_specialfd	(	struct thread *	td,
		int	type,
		void *	arg
	)

Definition at line 935 of file sys_generic.c.

References eventfd_create_file(), fd, finstall(), and type.

Referenced by sys___specialfd().

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◆ kern_writev()

int kern_writev	(	struct thread *	td,
		int	fd,
		struct uio *	auio
	)

Definition at line 484 of file sys_generic.c.

References cap_write_rights, dofilewrite(), fd, and fget_write().

Referenced by sys_write(), sys_writev(), and vn_sendfile().

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◆ MALLOC_DEFINE() [1/4]

static MALLOC_DEFINE	(	M_IOCTLOPS	,
		"ioctlops"	,
		"ioctl data buffer"
	)

static

◆ MALLOC_DEFINE() [2/4]

MALLOC_DEFINE	(	M_IOV	,
		"iov"	,
		"large iov's"
	)

◆ MALLOC_DEFINE() [3/4]

static MALLOC_DEFINE	(	M_SELECT	,
		"select"	,
		"select() buffer"
	)

static

◆ MALLOC_DEFINE() [4/4]

MALLOC_DEFINE	(	M_SELFD	,
		"selfd"	,
		"selfd"
	)

◆ poll_no_poll()

int poll_no_poll ( int events )

Definition at line 996 of file sys_generic.c.

Referenced by invfo_poll(), and no_poll().

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◆ pollout()

static int pollout	(	struct thread *	td,
		struct pollfd *	fds,
		struct pollfd *	ufds,
		u_int	nfd
	)

static

Definition at line 1686 of file sys_generic.c.

Referenced by kern_poll().

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◆ pollrescan()

static int pollrescan ( struct thread * td )

static

Definition at line 1636 of file sys_generic.c.

References cap_event_rights, fd, fget_only_user(), fget_unlocked(), and selfdfree().

Referenced by kern_poll_kfds().

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◆ pollscan()

static int pollscan	(	struct thread *	td,
		struct pollfd *	fds,
		u_int	nfd
	)

static

Definition at line 1707 of file sys_generic.c.

References cap_event_rights, fget_only_user(), fget_unlocked(), and selfdalloc().

Referenced by kern_poll_kfds().

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◆ seldrain()

void seldrain ( struct selinfo * sip )

Definition at line 1851 of file sys_generic.c.

References doselwakeup().

Referenced by destroy_vpollinfo(), eventfd_close(), kqueue_destroy(), mqueue_free(), pipeclose(), ptsdrv_free(), sofree(), and tty_dealloc().

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◆ select_check_badfd()

static int select_check_badfd	(	fd_set *	fd_in,
		int	nd,
		int	ndu,
		int	abi_nfdbits
	)

static

Definition at line 1098 of file sys_generic.c.

References addr, and res.

Referenced by kern_select().

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◆ selectinit() [1/2]

static void selectinit ( void * )

static

◆ selectinit() [2/2]

static void selectinit ( void *dummy __unused )

static

Definition at line 2059 of file sys_generic.c.

References mtx_pool_create(), and mtxpool_select.

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◆ selfdalloc()

static void selfdalloc	(	struct thread *	td,
		void *	cookie
	)

static

Definition at line 1817 of file sys_generic.c.

References malloc().

Referenced by pollscan(), selscan(), and selsocket().

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◆ selfdfree()

static void selfdfree	(	struct seltd *	stp,
		struct selfd *	sfp
	)

static

Definition at line 1833 of file sys_generic.c.

References free().

Referenced by pollrescan(), selrescan(), and seltdclear().

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◆ selflags()

static __inline int selflags	(	fd_mask **	ibits,
		int	idx,
		fd_mask	bit
	)

static

Definition at line 1328 of file sys_generic.c.

References flags, and select_flags.

Referenced by selrescan(), and selscan().

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◆ selrecord()

void selrecord	(	struct thread *	selector,
		struct selinfo *	sip
	)

Definition at line 1869 of file sys_generic.c.

References mtx, mtx_pool_find(), mtxpool_select, panic(), and SELTD_RESCAN.

Referenced by devpoll(), eventfd_poll(), kqueue_poll(), logpoll(), mqf_poll(), pipe_poll(), procdesc_poll(), ptsdev_poll(), sopoll_generic(), ttydev_poll(), and vn_pollrecord().

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◆ selrescan()

static int selrescan	(	struct thread *	td,
		fd_mask **	ibits,
		fd_mask **	obits
	)

static

Definition at line 1382 of file sys_generic.c.

References cap_event_rights, ev, fd, fget_only_user(), fget_unlocked(), selfdfree(), selflags(), and selsetbits().

Referenced by kern_select().

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◆ selscan()

static int selscan	(	struct thread *	td,
		fd_mask **	ibits,
		fd_mask **	obits,
		int	nfd
	)

static

Definition at line 1432 of file sys_generic.c.

References cap_event_rights, ev, fd, fget_only_user(), fget_unlocked(), flags, selfdalloc(), selflags(), and selsetbits().

Referenced by kern_select().

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◆ selsetbits()

static __inline int selsetbits	(	fd_mask **	ibits,
		fd_mask **	obits,
		int	idx,
		fd_mask	bit,
		int	events
	)

static

Definition at line 1349 of file sys_generic.c.

References select_flags.

Referenced by selrescan(), and selscan().

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◆ selsocket()

int selsocket	(	struct socket *	so,
		int	events,
		struct timeval *	tvp,
		struct thread *	td
	)

Definition at line 1763 of file sys_generic.c.

References selfdalloc(), seltdclear(), seltdinit(), seltdwait(), sopoll(), tc_precexp, and tc_tick_sbt.

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◆ seltdclear()

static void seltdclear ( struct thread * td )

static

Definition at line 2044 of file sys_generic.c.

References selfdfree().

Referenced by kern_poll_kfds(), kern_select(), and selsocket().

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◆ seltdfini()

void seltdfini ( struct thread * td )

Definition at line 2020 of file sys_generic.c.

References cv_destroy(), and free().

Referenced by exit1(), and thread_dtor().

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◆ seltdinit()

static void seltdinit ( struct thread * td )

static

Definition at line 1969 of file sys_generic.c.

References cv_init(), and malloc().

Referenced by kern_poll_kfds(), kern_select(), and selsocket().

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◆ seltdwait()

static int seltdwait	(	struct thread *	td,
		sbintime_t	sbt,
		sbintime_t	precision
	)

static

Definition at line 1988 of file sys_generic.c.

References SELTD_PENDING, and SELTD_RESCAN.

Referenced by kern_poll_kfds(), kern_select(), and selsocket().

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◆ selwakeup()

void selwakeup ( struct selinfo * sip )

Definition at line 1917 of file sys_generic.c.

References doselwakeup().

Referenced by _mqueue_recv(), _mqueue_send(), devctl_queue(), eventfd_read(), eventfd_write(), mqueue_fdclose(), procdesc_exit(), ptsdrv_inwakeup(), ptsdrv_outwakeup(), and tty_wakeup().

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◆ selwakeuppri()

void selwakeuppri	(	struct selinfo *	sip,
		int	pri
	)

Definition at line 1924 of file sys_generic.c.

References doselwakeup().

Referenced by kqueue_drain(), kqueue_wakeup(), logtimeout(), pipeselwakeup(), sohasoutofband(), solisten_wakeup(), and sowakeup().

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◆ sys___specialfd()

int sys___specialfd	(	struct thread *	td,
		struct __specialfd_args *	args
	)

Definition at line 967 of file sys_generic.c.

References kern_specialfd().

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◆ sys_fspacectl()

int sys_fspacectl	(	struct thread *	td,
		struct fspacectl_args *	uap
	)

Definition at line 865 of file sys_generic.c.

References kern_fspacectl().

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◆ sys_ftruncate()

int sys_ftruncate	(	struct thread *	td,
		struct ftruncate_args *	uap
	)

Definition at line 623 of file sys_generic.c.

References ftruncate_args::fd, kern_ftruncate(), and ftruncate_args::length.

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◆ sys_ioctl()

int sys_ioctl	(	struct thread *	td,
		struct ioctl_args *	uap
	)

Definition at line 653 of file sys_generic.c.

References __aligned, ioctl_args::com, data, ioctl_args::data, ioctl_args::fd, free(), kern_ioctl(), malloc(), printf(), SYS_IOCTL_SMALL_ALIGN, and SYS_IOCTL_SMALL_SIZE.

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◆ sys_poll()

int sys_poll	(	struct thread *	td,
		struct poll_args *	uap
	)

Definition at line 1474 of file sys_generic.c.

References kern_poll(), and ts.

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◆ sys_posix_fallocate()

int sys_posix_fallocate	(	struct thread *	td,
		struct posix_fallocate_args *	uap
	)

Definition at line 824 of file sys_generic.c.

References kern_posix_error(), and kern_posix_fallocate().

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◆ sys_ppoll()

int sys_ppoll	(	struct thread *	td,
		struct ppoll_args *	uap
	)

Definition at line 1567 of file sys_generic.c.

References kern_poll(), set, and ts.

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◆ sys_pread()

int sys_pread	(	struct thread *	td,
		struct pread_args *	uap
	)

Definition at line 223 of file sys_generic.c.

References pread_args::buf, pread_args::fd, kern_pread(), pread_args::nbyte, and pread_args::offset.

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◆ sys_preadv()

int sys_preadv	(	struct thread *	td,
		struct preadv_args *	uap
	)

Definition at line 307 of file sys_generic.c.

References copyinuio(), preadv_args::fd, free(), preadv_args::iovcnt, preadv_args::iovp, kern_preadv(), and preadv_args::offset.

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◆ sys_pselect()

int sys_pselect	(	struct thread *	td,
		struct pselect_args *	uap
	)

Definition at line 1012 of file sys_generic.c.

References kern_pselect(), set, and ts.

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◆ sys_pwrite()

int sys_pwrite	(	struct thread *	td,
		struct pwrite_args *	uap
	)

Definition at line 424 of file sys_generic.c.

References pwrite_args::buf, pwrite_args::fd, kern_pwrite(), pwrite_args::nbyte, and pwrite_args::offset.

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◆ sys_pwritev()

int sys_pwritev	(	struct thread *	td,
		struct pwritev_args *	uap
	)

Definition at line 509 of file sys_generic.c.

References copyinuio(), pwritev_args::fd, free(), pwritev_args::iovcnt, pwritev_args::iovp, kern_pwritev(), and pwritev_args::offset.

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◆ sys_read()

int sys_read	(	struct thread *	td,
		struct read_args *	uap
	)

Definition at line 192 of file sys_generic.c.

References read_args::buf, read_args::fd, kern_readv(), and read_args::nbyte.

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◆ sys_readv()

int sys_readv	(	struct thread *	td,
		struct readv_args *	uap
	)

Definition at line 268 of file sys_generic.c.

References copyinuio(), readv_args::fd, free(), readv_args::iovcnt, readv_args::iovp, and kern_readv().

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◆ sys_select()

int sys_select	(	struct thread *	td,
		struct select_args *	uap
	)

Definition at line 1071 of file sys_generic.c.

References select_args::ex, select_args::in, kern_select(), select_args::nd, select_args::ou, and select_args::tv.

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◆ sys_write()

int sys_write	(	struct thread *	td,
		struct write_args *	uap
	)

Definition at line 393 of file sys_generic.c.

References write_args::buf, write_args::fd, kern_writev(), and write_args::nbyte.

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◆ sys_writev()

int sys_writev	(	struct thread *	td,
		struct writev_args *	uap
	)

Definition at line 470 of file sys_generic.c.

References copyinuio(), writev_args::fd, free(), writev_args::iovcnt, writev_args::iovp, and kern_writev().

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◆ SYSINIT()

SYSINIT	(	select	,
		SI_SUB_SYSCALLS	,
		SI_ORDER_ANY	,
		selectinit	,
		NULL
	)

Variable Documentation

◆ mtxpool_select

struct mtx_pool* mtxpool_select

static

Definition at line 164 of file sys_generic.c.

Referenced by selectinit(), and selrecord().

◆ select_flags

const int select_flags[3]

static

Initial value:

= {
    POLLRDNORM | POLLHUP | POLLERR,
    POLLWRNORM | POLLHUP | POLLERR,
    POLLRDBAND | POLLERR
}

Definition at line 1317 of file sys_generic.c.

Referenced by selflags(), and selsetbits().

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ getbits

◆ putbits

◆ SELTD_PENDING

◆ SELTD_RESCAN

◆ swizzle_fdset

◆ SYS_IOCTL_SMALL_ALIGN

◆ SYS_IOCTL_SMALL_SIZE

Function Documentation

◆ __FBSDID()

◆ CTASSERT()

◆ dofileread()

◆ dofilewrite()

◆ doselwakeup()

◆ kern_fspacectl()

◆ kern_ftruncate()

◆ kern_ioctl()

◆ kern_poll()

◆ kern_poll_kfds()

◆ kern_poll_maxfds()

◆ kern_posix_error()

◆ kern_posix_fallocate()

◆ kern_pread()

◆ kern_preadv()

◆ kern_pselect()

◆ kern_pwrite()

◆ kern_pwritev()

◆ kern_readv()

◆ kern_select()

◆ kern_specialfd()

◆ kern_writev()

◆ MALLOC_DEFINE() [1/4]

◆ MALLOC_DEFINE() [2/4]

◆ MALLOC_DEFINE() [3/4]

◆ MALLOC_DEFINE() [4/4]

◆ poll_no_poll()

◆ pollout()

◆ pollrescan()

◆ pollscan()

◆ seldrain()

◆ select_check_badfd()

◆ selectinit() [1/2]

◆ selectinit() [2/2]

◆ selfdalloc()

◆ selfdfree()

◆ selflags()

◆ selrecord()

◆ selrescan()

◆ selscan()

◆ selsetbits()

◆ selsocket()

◆ seltdclear()

◆ seltdfini()

◆ seltdinit()

◆ seltdwait()

◆ selwakeup()

◆ selwakeuppri()

◆ sys___specialfd()

◆ sys_fspacectl()

◆ sys_ftruncate()

◆ sys_ioctl()

◆ sys_poll()

◆ sys_posix_fallocate()

◆ sys_ppoll()

◆ sys_pread()

◆ sys_preadv()

◆ sys_pselect()

◆ sys_pwrite()

◆ sys_pwritev()

◆ sys_read()

◆ sys_readv()

◆ sys_select()

◆ sys_write()

◆ sys_writev()

◆ SYSINIT()

Variable Documentation