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[PATCH v2 1/4] Avoid duplication of _CLOEXEC and _NONBLOCK values
- From: Guy Martin <gmsoft at tuxicoman dot be>
- To: libc-ports at sourceware dot org
- Cc: carlos at systemhalted dot org, Guy Martin <gmsoft at tuxicoman dot be>
- Date: Sat, 21 Aug 2010 22:07:00 +0200
- Subject: [PATCH v2 1/4] Avoid duplication of _CLOEXEC and _NONBLOCK values
- References: <1282416480-14238-1-git-send-email-gmsoft@tuxicoman.be>
While upgrading my system I realized that O_CLOEXEC is only defined if
__USE_GNU is defined. The following patch is similar to the v1 but
surrounds _CLOEXEC values by #ifdef __USE_GNU.
2010-08-21 Guy Martin <gmsoft@tuxicoman.be>
* sysdeps/unix/sysv/linux/bits/socket.h: New file. Copy of the libc one
but use O_CLOEXEC and O_NONBLOCK from fcntl.h to define SOCK_CLOEXEC and
SOCK_NONBLOCK respectively.
*sysdeps/unix/sysv/linux/sys/epoll.h: Likewise for EPOLL_CLOEXEC and
EPOLL_NONBLOCK.
* sysdeps/unix/sysv/linux/sys/eventfd.h: Likewise for EFD_CLOEXEC and
EFD_NONBLOCK.
* sysdeps/unix/sysv/linux/sys/inotify.h: Likewise for IN_CLOEXEC and
IN_NONBLOCK.
* sysdeps/unix/sysv/linux/sys/signalfd.h: Likewise for SDF_CLOEXEC and
SFD_NONBLOCK.
* sysdeps/unix/sysv/linux/sys/timerfd.h: Likewise for TFD_CLOEXEC and
TFD_NONBLOCK.
Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>
---
diff --git a/sysdeps/unix/sysv/linux/bits/socket.h b/sysdeps/unix/sysv/linux/bits/socket.h
new file mode 100644
index 0000000..c422959
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/bits/socket.h
@@ -0,0 +1,433 @@
+/* System-specific socket constants and types. Linux version.
+ Copyright (C) 1991, 1992, 1994-2001, 2004, 2006, 2007, 2008, 2009, 2010
+ 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 __BITS_SOCKET_H
+#define __BITS_SOCKET_H
+
+#ifndef _SYS_SOCKET_H
+# error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
+#endif
+
+#define __need_size_t
+#include <stddef.h>
+
+#include <fcntl.h>
+#include <sys/types.h>
+
+/* Type for length arguments in socket calls. */
+#ifndef __socklen_t_defined
+typedef __socklen_t socklen_t;
+# define __socklen_t_defined
+#endif
+
+/* Types of sockets. */
+enum __socket_type
+{
+ SOCK_STREAM = 1, /* Sequenced, reliable, connection-based
+ byte streams. */
+#define SOCK_STREAM SOCK_STREAM
+ SOCK_DGRAM = 2, /* Connectionless, unreliable datagrams
+ of fixed maximum length. */
+#define SOCK_DGRAM SOCK_DGRAM
+ SOCK_RAW = 3, /* Raw protocol interface. */
+#define SOCK_RAW SOCK_RAW
+ SOCK_RDM = 4, /* Reliably-delivered messages. */
+#define SOCK_RDM SOCK_RDM
+ SOCK_SEQPACKET = 5, /* Sequenced, reliable, connection-based,
+ datagrams of fixed maximum length. */
+#define SOCK_SEQPACKET SOCK_SEQPACKET
+ SOCK_DCCP = 6, /* Datagram Congestion Control Protocol. */
+#define SOCK_DCCP SOCK_DCCP
+ SOCK_PACKET = 10, /* Linux specific way of getting packets
+ at the dev level. For writing rarp and
+ other similar things on the user level. */
+#define SOCK_PACKET SOCK_PACKET
+
+ /* Flags to be ORed into the type parameter of socket and socketpair and
+ used for the flags parameter of paccept. */
+#ifdef __USE_GNU
+ SOCK_CLOEXEC = O_CLOEXEC, /* Atomically set close-on-exec flag for the
+ new descriptor(s). */
+#define SOCK_CLOEXEC SOCK_CLOEXEC
+#endif
+ SOCK_NONBLOCK = O_NONBLOCK /* Atomically mark descriptor(s) as
+ non-blocking. */
+#define SOCK_NONBLOCK SOCK_NONBLOCK
+};
+
+/* Protocol families. */
+#define PF_UNSPEC 0 /* Unspecified. */
+#define PF_LOCAL 1 /* Local to host (pipes and file-domain). */
+#define PF_UNIX PF_LOCAL /* POSIX name for PF_LOCAL. */
+#define PF_FILE PF_LOCAL /* Another non-standard name for PF_LOCAL. */
+#define PF_INET 2 /* IP protocol family. */
+#define PF_AX25 3 /* Amateur Radio AX.25. */
+#define PF_IPX 4 /* Novell Internet Protocol. */
+#define PF_APPLETALK 5 /* Appletalk DDP. */
+#define PF_NETROM 6 /* Amateur radio NetROM. */
+#define PF_BRIDGE 7 /* Multiprotocol bridge. */
+#define PF_ATMPVC 8 /* ATM PVCs. */
+#define PF_X25 9 /* Reserved for X.25 project. */
+#define PF_INET6 10 /* IP version 6. */
+#define PF_ROSE 11 /* Amateur Radio X.25 PLP. */
+#define PF_DECnet 12 /* Reserved for DECnet project. */
+#define PF_NETBEUI 13 /* Reserved for 802.2LLC project. */
+#define PF_SECURITY 14 /* Security callback pseudo AF. */
+#define PF_KEY 15 /* PF_KEY key management API. */
+#define PF_NETLINK 16
+#define PF_ROUTE PF_NETLINK /* Alias to emulate 4.4BSD. */
+#define PF_PACKET 17 /* Packet family. */
+#define PF_ASH 18 /* Ash. */
+#define PF_ECONET 19 /* Acorn Econet. */
+#define PF_ATMSVC 20 /* ATM SVCs. */
+#define PF_RDS 21 /* RDS sockets. */
+#define PF_SNA 22 /* Linux SNA Project */
+#define PF_IRDA 23 /* IRDA sockets. */
+#define PF_PPPOX 24 /* PPPoX sockets. */
+#define PF_WANPIPE 25 /* Wanpipe API sockets. */
+#define PF_LLC 26 /* Linux LLC. */
+#define PF_CAN 29 /* Controller Area Network. */
+#define PF_TIPC 30 /* TIPC sockets. */
+#define PF_BLUETOOTH 31 /* Bluetooth sockets. */
+#define PF_IUCV 32 /* IUCV sockets. */
+#define PF_RXRPC 33 /* RxRPC sockets. */
+#define PF_ISDN 34 /* mISDN sockets. */
+#define PF_PHONET 35 /* Phonet sockets. */
+#define PF_IEEE802154 36 /* IEEE 802.15.4 sockets. */
+#define PF_MAX 37 /* For now.. */
+
+/* Address families. */
+#define AF_UNSPEC PF_UNSPEC
+#define AF_LOCAL PF_LOCAL
+#define AF_UNIX PF_UNIX
+#define AF_FILE PF_FILE
+#define AF_INET PF_INET
+#define AF_AX25 PF_AX25
+#define AF_IPX PF_IPX
+#define AF_APPLETALK PF_APPLETALK
+#define AF_NETROM PF_NETROM
+#define AF_BRIDGE PF_BRIDGE
+#define AF_ATMPVC PF_ATMPVC
+#define AF_X25 PF_X25
+#define AF_INET6 PF_INET6
+#define AF_ROSE PF_ROSE
+#define AF_DECnet PF_DECnet
+#define AF_NETBEUI PF_NETBEUI
+#define AF_SECURITY PF_SECURITY
+#define AF_KEY PF_KEY
+#define AF_NETLINK PF_NETLINK
+#define AF_ROUTE PF_ROUTE
+#define AF_PACKET PF_PACKET
+#define AF_ASH PF_ASH
+#define AF_ECONET PF_ECONET
+#define AF_ATMSVC PF_ATMSVC
+#define AF_RDS PF_RDS
+#define AF_SNA PF_SNA
+#define AF_IRDA PF_IRDA
+#define AF_PPPOX PF_PPPOX
+#define AF_WANPIPE PF_WANPIPE
+#define AF_LLC PF_LLC
+#define AF_CAN PF_CAN
+#define AF_TIPC PF_TIPC
+#define AF_BLUETOOTH PF_BLUETOOTH
+#define AF_IUCV PF_IUCV
+#define AF_RXRPC PF_RXRPC
+#define AF_ISDN PF_ISDN
+#define AF_PHONET PF_PHONET
+#define AF_IEEE802154 PF_IEEE802154
+#define AF_MAX PF_MAX
+
+/* Socket level values. Others are defined in the appropriate headers.
+
+ XXX These definitions also should go into the appropriate headers as
+ far as they are available. */
+#define SOL_RAW 255
+#define SOL_DECNET 261
+#define SOL_X25 262
+#define SOL_PACKET 263
+#define SOL_ATM 264 /* ATM layer (cell level). */
+#define SOL_AAL 265 /* ATM Adaption Layer (packet level). */
+#define SOL_IRDA 266
+
+/* Maximum queue length specifiable by listen. */
+#define SOMAXCONN 128
+
+/* Get the definition of the macro to define the common sockaddr members. */
+#include <bits/sockaddr.h>
+
+/* Structure describing a generic socket address. */
+struct sockaddr
+ {
+ __SOCKADDR_COMMON (sa_); /* Common data: address family and length. */
+ char sa_data[14]; /* Address data. */
+ };
+
+
+/* Structure large enough to hold any socket address (with the historical
+ exception of AF_UNIX). We reserve 128 bytes. */
+#define __ss_aligntype unsigned long int
+#define _SS_SIZE 128
+#define _SS_PADSIZE (_SS_SIZE - (2 * sizeof (__ss_aligntype)))
+
+struct sockaddr_storage
+ {
+ __SOCKADDR_COMMON (ss_); /* Address family, etc. */
+ __ss_aligntype __ss_align; /* Force desired alignment. */
+ char __ss_padding[_SS_PADSIZE];
+ };
+
+
+/* Bits in the FLAGS argument to `send', `recv', et al. */
+enum
+ {
+ MSG_OOB = 0x01, /* Process out-of-band data. */
+#define MSG_OOB MSG_OOB
+ MSG_PEEK = 0x02, /* Peek at incoming messages. */
+#define MSG_PEEK MSG_PEEK
+ MSG_DONTROUTE = 0x04, /* Don't use local routing. */
+#define MSG_DONTROUTE MSG_DONTROUTE
+#ifdef __USE_GNU
+ /* DECnet uses a different name. */
+ MSG_TRYHARD = MSG_DONTROUTE,
+# define MSG_TRYHARD MSG_DONTROUTE
+#endif
+ MSG_CTRUNC = 0x08, /* Control data lost before delivery. */
+#define MSG_CTRUNC MSG_CTRUNC
+ MSG_PROXY = 0x10, /* Supply or ask second address. */
+#define MSG_PROXY MSG_PROXY
+ MSG_TRUNC = 0x20,
+#define MSG_TRUNC MSG_TRUNC
+ MSG_DONTWAIT = 0x40, /* Nonblocking IO. */
+#define MSG_DONTWAIT MSG_DONTWAIT
+ MSG_EOR = 0x80, /* End of record. */
+#define MSG_EOR MSG_EOR
+ MSG_WAITALL = 0x100, /* Wait for a full request. */
+#define MSG_WAITALL MSG_WAITALL
+ MSG_FIN = 0x200,
+#define MSG_FIN MSG_FIN
+ MSG_SYN = 0x400,
+#define MSG_SYN MSG_SYN
+ MSG_CONFIRM = 0x800, /* Confirm path validity. */
+#define MSG_CONFIRM MSG_CONFIRM
+ MSG_RST = 0x1000,
+#define MSG_RST MSG_RST
+ MSG_ERRQUEUE = 0x2000, /* Fetch message from error queue. */
+#define MSG_ERRQUEUE MSG_ERRQUEUE
+ MSG_NOSIGNAL = 0x4000, /* Do not generate SIGPIPE. */
+#define MSG_NOSIGNAL MSG_NOSIGNAL
+ MSG_MORE = 0x8000, /* Sender will send more. */
+#define MSG_MORE MSG_MORE
+ MSG_WAITFORONE = 0x10000, /* Wait for at least one packet to return.*/
+#define MSG_WAITFORONE MSG_WAITFORONE
+
+ MSG_CMSG_CLOEXEC = 0x40000000 /* Set close_on_exit for file
+ descriptor received through
+ SCM_RIGHTS. */
+#define MSG_CMSG_CLOEXEC MSG_CMSG_CLOEXEC
+ };
+
+
+/* Structure describing messages sent by
+ `sendmsg' and received by `recvmsg'. */
+struct msghdr
+ {
+ void *msg_name; /* Address to send to/receive from. */
+ socklen_t msg_namelen; /* Length of address data. */
+
+ struct iovec *msg_iov; /* Vector of data to send/receive into. */
+ size_t msg_iovlen; /* Number of elements in the vector. */
+
+ void *msg_control; /* Ancillary data (eg BSD filedesc passing). */
+ size_t msg_controllen; /* Ancillary data buffer length.
+ !! The type should be socklen_t but the
+ definition of the kernel is incompatible
+ with this. */
+
+ int msg_flags; /* Flags on received message. */
+ };
+
+#ifdef __USE_GNU
+/* For `recvmmsg'. */
+struct mmsghdr
+ {
+ struct msghdr msg_hdr; /* Actual message header. */
+ unsigned int msg_len; /* Number of received bytes for the entry. */
+ };
+#endif
+
+/* Structure used for storage of ancillary data object information. */
+struct cmsghdr
+ {
+ size_t cmsg_len; /* Length of data in cmsg_data plus length
+ of cmsghdr structure.
+ !! The type should be socklen_t but the
+ definition of the kernel is incompatible
+ with this. */
+ int cmsg_level; /* Originating protocol. */
+ int cmsg_type; /* Protocol specific type. */
+#if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
+ __extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data. */
+#endif
+ };
+
+/* Ancillary data object manipulation macros. */
+#if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
+# define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)
+#else
+# define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))
+#endif
+#define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr (mhdr, cmsg)
+#define CMSG_FIRSTHDR(mhdr) \
+ ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr) \
+ ? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) 0)
+#define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) \
+ & (size_t) ~(sizeof (size_t) - 1))
+#define CMSG_SPACE(len) (CMSG_ALIGN (len) \
+ + CMSG_ALIGN (sizeof (struct cmsghdr)))
+#define CMSG_LEN(len) (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len))
+
+extern struct cmsghdr *__cmsg_nxthdr (struct msghdr *__mhdr,
+ struct cmsghdr *__cmsg) __THROW;
+#ifdef __USE_EXTERN_INLINES
+# ifndef _EXTERN_INLINE
+# define _EXTERN_INLINE __extern_inline
+# endif
+_EXTERN_INLINE struct cmsghdr *
+__NTH (__cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg))
+{
+ if ((size_t) __cmsg->cmsg_len < sizeof (struct cmsghdr))
+ /* The kernel header does this so there may be a reason. */
+ return 0;
+
+ __cmsg = (struct cmsghdr *) ((unsigned char *) __cmsg
+ + CMSG_ALIGN (__cmsg->cmsg_len));
+ if ((unsigned char *) (__cmsg + 1) > ((unsigned char *) __mhdr->msg_control
+ + __mhdr->msg_controllen)
+ || ((unsigned char *) __cmsg + CMSG_ALIGN (__cmsg->cmsg_len)
+ > ((unsigned char *) __mhdr->msg_control + __mhdr->msg_controllen)))
+ /* No more entries. */
+ return 0;
+ return __cmsg;
+}
+#endif /* Use `extern inline'. */
+
+/* Socket level message types. This must match the definitions in
+ <linux/socket.h>. */
+enum
+ {
+ SCM_RIGHTS = 0x01 /* Transfer file descriptors. */
+#define SCM_RIGHTS SCM_RIGHTS
+#ifdef __USE_GNU
+ , SCM_CREDENTIALS = 0x02 /* Credentials passing. */
+# define SCM_CREDENTIALS SCM_CREDENTIALS
+#endif
+ };
+
+#ifdef __USE_GNU
+/* User visible structure for SCM_CREDENTIALS message */
+struct ucred
+{
+ pid_t pid; /* PID of sending process. */
+ uid_t uid; /* UID of sending process. */
+ gid_t gid; /* GID of sending process. */
+};
+#endif
+
+/* Ugly workaround for unclean kernel headers. */
+#if !defined __USE_MISC && !defined __USE_GNU
+# ifndef FIOGETOWN
+# define __SYS_SOCKET_H_undef_FIOGETOWN
+# endif
+# ifndef FIOSETOWN
+# define __SYS_SOCKET_H_undef_FIOSETOWN
+# endif
+# ifndef SIOCATMARK
+# define __SYS_SOCKET_H_undef_SIOCATMARK
+# endif
+# ifndef SIOCGPGRP
+# define __SYS_SOCKET_H_undef_SIOCGPGRP
+# endif
+# ifndef SIOCGSTAMP
+# define __SYS_SOCKET_H_undef_SIOCGSTAMP
+# endif
+# ifndef SIOCGSTAMPNS
+# define __SYS_SOCKET_H_undef_SIOCGSTAMPNS
+# endif
+# ifndef SIOCSPGRP
+# define __SYS_SOCKET_H_undef_SIOCSPGRP
+# endif
+#endif
+
+/* Get socket manipulation related informations from kernel headers. */
+#include <asm/socket.h>
+
+#if !defined __USE_MISC && !defined __USE_GNU
+# ifdef __SYS_SOCKET_H_undef_FIOGETOWN
+# undef __SYS_SOCKET_H_undef_FIOGETOWN
+# undef FIOGETOWN
+# endif
+# ifdef __SYS_SOCKET_H_undef_FIOSETOWN
+# undef __SYS_SOCKET_H_undef_FIOSETOWN
+# undef FIOSETOWN
+# endif
+# ifdef __SYS_SOCKET_H_undef_SIOCATMARK
+# undef __SYS_SOCKET_H_undef_SIOCATMARK
+# undef SIOCATMARK
+# endif
+# ifdef __SYS_SOCKET_H_undef_SIOCGPGRP
+# undef __SYS_SOCKET_H_undef_SIOCGPGRP
+# undef SIOCGPGRP
+# endif
+# ifdef __SYS_SOCKET_H_undef_SIOCGSTAMP
+# undef __SYS_SOCKET_H_undef_SIOCGSTAMP
+# undef SIOCGSTAMP
+# endif
+# ifdef __SYS_SOCKET_H_undef_SIOCGSTAMPNS
+# undef __SYS_SOCKET_H_undef_SIOCGSTAMPNS
+# undef SIOCGSTAMPNS
+# endif
+# ifdef __SYS_SOCKET_H_undef_SIOCSPGRP
+# undef __SYS_SOCKET_H_undef_SIOCSPGRP
+# undef SIOCSPGRP
+# endif
+#endif
+
+/* Structure used to manipulate the SO_LINGER option. */
+struct linger
+ {
+ int l_onoff; /* Nonzero to linger on close. */
+ int l_linger; /* Time to linger. */
+ };
+
+
+__BEGIN_DECLS
+
+/* Receive a message as described by MESSAGE from socket FD.
+ Returns the number of bytes read or -1 for errors.
+
+ This function is a cancellation point and therefore not marked with
+ __THROW. */
+extern int recvmmsg (int __fd, struct mmsghdr *__vmessages,
+ unsigned int __vlen, int __flags,
+ __const struct timespec *__tmo);
+
+__END_DECLS
+
+#endif /* bits/socket.h */
diff --git a/sysdeps/unix/sysv/linux/sys/epoll.h b/sysdeps/unix/sysv/linux/sys/epoll.h
new file mode 100644
index 0000000..c81b7c3
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sys/epoll.h
@@ -0,0 +1,147 @@
+/* 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>
+#include <fcntl.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
+ {
+#ifdef __USE_GNU
+ EPOLL_CLOEXEC = 02000000,
+#define EPOLL_CLOEXEC EPOLL_CLOEXEC
+#endif
+ EPOLL_NONBLOCK = 04000
+#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 */
diff --git a/sysdeps/unix/sysv/linux/sys/eventfd.h b/sysdeps/unix/sysv/linux/sys/eventfd.h
new file mode 100644
index 0000000..d90afdc
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sys/eventfd.h
@@ -0,0 +1,57 @@
+/* Copyright (C) 2007, 2008, 2009, 2010 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>
+#include <fcntl.h>
+
+
+/* Type for event counter. */
+typedef uint64_t eventfd_t;
+
+/* Flags for signalfd. */
+enum
+ {
+ EFD_SEMAPHORE = 1,
+#define EFD_SEMAPHORE EFD_SEMAPHORE
+#ifdef __USE_GNU
+ EFD_CLOEXEC = O_CLOEXEC,
+#define EFD_CLOEXEC EFD_CLOEXEC
+#endif
+ EFD_NONBLOCK = O_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 */
diff --git a/sysdeps/unix/sysv/linux/sys/inotify.h b/sysdeps/unix/sysv/linux/sys/inotify.h
new file mode 100644
index 0000000..d57a685
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sys/inotify.h
@@ -0,0 +1,110 @@
+/* Copyright (C) 2005, 2006, 2008, 2009, 2010 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>
+#include <fcntl.h>
+
+
+/* Flags for the parameter of inotify_init1. */
+enum
+ {
+#ifdef __USE_GNU
+ IN_CLOEXEC = O_CLOEXEC,
+#define IN_CLOEXEC IN_CLOEXEC
+#endif
+ IN_NONBLOCK = O_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_EXCL_UNLINK 0x04000000 /* Exclude events on unlinked
+ objects. */
+#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 */
diff --git a/sysdeps/unix/sysv/linux/sys/signalfd.h b/sysdeps/unix/sysv/linux/sys/signalfd.h
new file mode 100644
index 0000000..fbab2e9
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sys/signalfd.h
@@ -0,0 +1,69 @@
+/* Copyright (C) 2007, 2008, 2010 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>
+#include <fcntl.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
+ {
+#ifdef __USE_GNU
+ SFD_CLOEXEC = O_CLOEXEC,
+#define SFD_CLOEXEC SFD_CLOEXEC
+#endif
+ SFD_NONBLOCK = O_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 */
diff --git a/sysdeps/unix/sysv/linux/sys/timerfd.h b/sysdeps/unix/sysv/linux/sys/timerfd.h
new file mode 100644
index 0000000..30d95c0
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sys/timerfd.h
@@ -0,0 +1,63 @@
+/* Copyright (C) 2008, 2010 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>
+#include <fcntl.h>
+
+
+/* Bits to be set in the FLAGS parameter of `timerfd_create'. */
+enum
+ {
+#ifdef __USE_GNU
+ TFD_CLOEXEC = O_CLOEXEC,
+#define TFD_CLOEXEC TFD_CLOEXEC
+#endif
+ TFD_NONBLOCK = O_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 */