/* Copyright (C) 2002-2006, 2007, 2008, 2009 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 <stdint.h>

#include <sys/types.h>

/* Get __sigset_t.  */

#include <bits/sigset.h>

#ifndef __sigset_t_defined

# define __sigset_t_defined

typedef __sigset_t sigset_t;

#endif

/* Flags to be passed to epoll_create1.  */

enum

  {

    EPOLL_CLOEXEC = 010000000,

#define EPOLL_CLOEXEC EPOLL_CLOEXEC

    EPOLL_NONBLOCK = 00200004 /* HPUX has separate NDELAY & NONBLOCK */

#define EPOLL_NONBLOCK EPOLL_NONBLOCK

  };

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

    EPOLLRDHUP = 0x2000,

#define EPOLLRDHUP EPOLLRDHUP

    EPOLLONESHOT = (1 << 30),

#define EPOLLONESHOT EPOLLONESHOT

    EPOLLET = (1 << 31)

#define EPOLLET EPOLLET

  };

/* Valid opcodes ( "op" parameter ) to issue to epoll_ctl().  */

#define EPOLL_CTL_ADD 1	/* Add a file descriptor to the interface.  */

#define EPOLL_CTL_DEL 2	/* Remove a file descriptor from the interface.  */

#define EPOLL_CTL_MOD 3	/* Change file descriptor 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;

/* Same as epoll_create but with an FLAGS parameter.  The unused SIZE

   parameter has been dropped.  */

extern int epoll_create1 (int __flags) __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).

   This function is a cancellation point and therefore not marked with

   __THROW.  */

extern int epoll_wait (int __epfd, struct epoll_event *__events,

		       int __maxevents, int __timeout);

/* Same as epoll_wait, but the thread's signal mask is temporarily

   and atomically replaced with the one provided as parameter.

   This function is a cancellation point and therefore not marked with

   __THROW.  */

extern int epoll_pwait (int __epfd, struct epoll_event *__events,

			int __maxevents, int __timeout,

			__const __sigset_t *__ss);

__END_DECLS

#endif /* sys/epoll.h */

/* Copyright (C) 2007, 2008, 2009 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_EVENTFD_H

#define	_SYS_EVENTFD_H	1

#include <stdint.h>

/* Type for event counter.  */

typedef uint64_t eventfd_t;

/* Flags for signalfd.  */

enum

  {

    EFD_SEMAPHORE = 1,

#define EFD_SEMAPHORE EFD_SEMAPHORE

    EFD_CLOEXEC = 010000000,

#define EFD_CLOEXEC EFD_CLOEXEC

    EFD_NONBLOCK = 00200004 /* HPUX has separate NDELAY & NONBLOCK */

#define EFD_NONBLOCK EFD_NONBLOCK

  };

__BEGIN_DECLS

/* Return file descriptor for generic event channel.  Set initial

   value to COUNT.  */

extern int eventfd (int __count, int __flags) __THROW;

/* Read event counter and possibly wait for events.  */

extern int eventfd_read (int __fd, eventfd_t *__value);

/* Increment event counter.  */

extern int eventfd_write (int __fd, eventfd_t __value);

__END_DECLS

#endif /* sys/eventfd.h */

/* Copyright (C) 2005, 2006, 2008, 2009 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_INOTIFY_H

#define	_SYS_INOTIFY_H	1

#include <stdint.h>

/* Flags for the parameter of inotify_init1.  */

enum

  {

    IN_CLOEXEC = 010000000,

#define IN_CLOEXEC IN_CLOEXEC

    IN_NONBLOCK = 000200004 /* HPUX has separate NDELAY & NONBLOCK */

#define IN_NONBLOCK IN_NONBLOCK

  };

/* Structure describing an inotify event.  */

struct inotify_event

{

  int wd;		/* Watch descriptor.  */

  uint32_t mask;	/* Watch mask.  */

  uint32_t cookie;	/* Cookie to synchronize two events.  */

  uint32_t len;		/* Length (including NULs) of name.  */

  char name __flexarr;	/* Name.  */

};

/* Supported events suitable for MASK parameter of INOTIFY_ADD_WATCH.  */

#define IN_ACCESS	 0x00000001	/* File was accessed.  */

#define IN_MODIFY	 0x00000002	/* File was modified.  */

#define IN_ATTRIB	 0x00000004	/* Metadata changed.  */

#define IN_CLOSE_WRITE	 0x00000008	/* Writtable file was closed.  */

#define IN_CLOSE_NOWRITE 0x00000010	/* Unwrittable file closed.  */

#define IN_CLOSE	 (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE) /* Close.  */

#define IN_OPEN		 0x00000020	/* File was opened.  */

#define IN_MOVED_FROM	 0x00000040	/* File was moved from X.  */

#define IN_MOVED_TO      0x00000080	/* File was moved to Y.  */

#define IN_MOVE		 (IN_MOVED_FROM | IN_MOVED_TO) /* Moves.  */

#define IN_CREATE	 0x00000100	/* Subfile was created.  */

#define IN_DELETE	 0x00000200	/* Subfile was deleted.  */

#define IN_DELETE_SELF	 0x00000400	/* Self was deleted.  */

#define IN_MOVE_SELF	 0x00000800	/* Self was moved.  */

/* Events sent by the kernel.  */

#define IN_UNMOUNT	 0x00002000	/* Backing fs was unmounted.  */

#define IN_Q_OVERFLOW	 0x00004000	/* Event queued overflowed.  */

#define IN_IGNORED	 0x00008000	/* File was ignored.  */

/* Helper events.  */

#define IN_CLOSE	 (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE)	/* Close.  */

#define IN_MOVE		 (IN_MOVED_FROM | IN_MOVED_TO)		/* Moves.  */

/* Special flags.  */

#define IN_ONLYDIR	 0x01000000	/* Only watch the path if it is a

					   directory.  */

#define IN_DONT_FOLLOW	 0x02000000	/* Do not follow a sym link.  */

#define IN_MASK_ADD	 0x20000000	/* Add to the mask of an already

					   existing watch.  */

#define IN_ISDIR	 0x40000000	/* Event occurred against dir.  */

#define IN_ONESHOT	 0x80000000	/* Only send event once.  */

/* All events which a program can wait on.  */

#define IN_ALL_EVENTS	 (IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE  \

			  | IN_CLOSE_NOWRITE | IN_OPEN | IN_MOVED_FROM	      \

			  | IN_MOVED_TO | IN_CREATE | IN_DELETE		      \

			  | IN_DELETE_SELF | IN_MOVE_SELF)

__BEGIN_DECLS

/* Create and initialize inotify instance.  */

extern int inotify_init (void) __THROW;

/* Create and initialize inotify instance.  */

extern int inotify_init1 (int __flags) __THROW;

/* Add watch of object NAME to inotify instance FD.  Notify about

   events specified by MASK.  */

extern int inotify_add_watch (int __fd, const char *__name, uint32_t __mask)

  __THROW;

/* Remove the watch specified by WD from the inotify instance FD.  */

extern int inotify_rm_watch (int __fd, int __wd) __THROW;

__END_DECLS

#endif /* sys/inotify.h */

/* Copyright (C) 2007, 2008 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_SIGNALFD_H

#define	_SYS_SIGNALFD_H	1

#define __need_sigset_t

#include <signal.h>

#include <stdint.h>

struct signalfd_siginfo

{

  uint32_t ssi_signo;

  int32_t ssi_errno;

  int32_t ssi_code;

  uint32_t ssi_pid;

  uint32_t ssi_uid;

  int32_t ssi_fd;

  uint32_t ssi_tid;

  uint32_t ssi_band;

  uint32_t ssi_overrun;

  uint32_t ssi_trapno;

  int32_t ssi_status;

  int32_t ssi_int;

  uint64_t ssi_ptr;

  uint64_t ssi_utime;

  uint64_t ssi_stime;

  uint64_t ssi_addr;

  uint8_t __pad[48];

};

/* Flags for signalfd.  */

enum

  {

    SFD_CLOEXEC = 010000000,

#define SFD_CLOEXEC SFD_CLOEXEC

    SFD_NONBLOCK = 00200004 /* HPUX has separate NDELAY & NONBLOCK */

#define SFD_NONBLOCK SFD_NONBLOCK

  };

__BEGIN_DECLS

/* Request notification for delivery of signals in MASK to be

   performed using descriptor FD.*/

extern int signalfd (int __fd, const sigset_t *__mask, int __flags)

  __THROW __nonnull ((2));

__END_DECLS

#endif /* sys/signalfd.h */

/* Copyright (C) 2008 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_TIMERFD_H

#define	_SYS_TIMERFD_H	1

#include <time.h>

/* Bits to be set in the FLAGS parameter of `timerfd_create'.  */

enum

  {

    TFD_CLOEXEC = 010000000,

#define TFD_CLOEXEC TFD_CLOEXEC

    TFD_NONBLOCK = 000200004 /* HPUX has separate NDELAY & NONBLOCK */

#define TFD_NONBLOCK TFD_NONBLOCK

  };

/* Bits to be set in the FLAGS parameter of `timerfd_settime'.  */

enum

  {

    TFD_TIMER_ABSTIME = 1 << 0

#define TFD_TIMER_ABSTIME TFD_TIMER_ABSTIME

  };

__BEGIN_DECLS

/* Return file descriptor for new interval timer source.  */

extern int timerfd_create (clockid_t __clock_id, int __flags) __THROW;

/* Set next expiration time of interval timer source UFD to UTMR.  If

   FLAGS has the TFD_TIMER_ABSTIME flag set the timeout value is

   absolute.  Optionally return the old expiration time in OTMR.  */

extern int timerfd_settime (int __ufd, int __flags,

			    __const struct itimerspec *__utmr,

			    struct itimerspec *__otmr) __THROW;

/* Return the next expiration time of UFD.  */

extern int timerfd_gettime (int __ufd, struct itimerspec *__otmr) __THROW;

__END_DECLS

#endif /* sys/timerfd.h */