Split architecture-specific parts of sys/epoll.h into bits/epoll.h.

8 files changed, 113 insertions, 297 deletions

diff --git a/ChangeLog b/ChangeLog
index 84ad8bdb4c..87f84f6e2d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,21 @@
 2012-02-20  Joseph Myers  <joseph@codesourcery.com>
 
+	* sysdeps/unix/sysv/linux/bits/epoll.h: New file.
+	* sysdeps/unix/sysv/linux/sparc/bits/epoll.h: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/bits/epoll.h: Likewise.
+	* sysdeps/unix/sysv/linux/sparc/sys/epoll.h: Remove
+	* sysdeps/unix/sysv/linux/x86_64/sys/epoll.h: Likewise.
+	* sysdeps/unix/sysv/linux/sys/epoll.h: Get flags from
+	<bits/epoll.h>.
+	(EPOLL_CLOEXEC, EPOLL_NONBLOCK): Don't define here.
+	(__EPOLL_PACKED): Define to empty if not defined by
+	<bits/epoll.h>.
+	(struct epoll_event): Use __EPOLL_PACKED to make possibly packed.
+	* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
+	bits/epoll.h.
+
+2012-02-20  Joseph Myers  <joseph@codesourcery.com>
+
 	* sysdeps/unix/sysv/linux/bits/timerfd.h: New file.
 	* sysdeps/unix/sysv/linux/sparc/bits/timerfd.h: Likewise.
 	* sysdeps/unix/sysv/linux/sparc/sys/timerfd.h: Remove.
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index 238e4b9f8a..458658df29 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -33,7 +33,7 @@ sysdep_headers += sys/mount.h sys/acct.h sys/sysctl.h \
 		  sys/ultrasound.h sys/raw.h sys/personality.h sys/epoll.h \
 		  bits/a.out.h sys/inotify.h sys/signalfd.h sys/eventfd.h \
 		  sys/timerfd.h sys/fanotify.h bits/eventfd.h bits/inotify.h \
-		  bits/signalfd.h bits/timerfd.h
+		  bits/signalfd.h bits/timerfd.h bits/epoll.h
 
 install-others += $(inst_includedir)/bits/syscall.h
 
diff --git a/sysdeps/unix/sysv/linux/bits/epoll.h b/sysdeps/unix/sysv/linux/bits/epoll.h
new file mode 100644
index 0000000000..0a49b979fe
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/bits/epoll.h
@@ -0,0 +1,29 @@
+/* Copyright (C) 2002-2012 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef	_SYS_EPOLL_H
+# error "Never use <bits/epoll.h> directly; include <sys/epoll.h> instead."
+#endif
+
+/* Flags to be passed to epoll_create1.  */
+enum
+  {
+    EPOLL_CLOEXEC = 02000000,
+#define EPOLL_CLOEXEC EPOLL_CLOEXEC
+    EPOLL_NONBLOCK = 00004000
+#define EPOLL_NONBLOCK EPOLL_NONBLOCK
+  };
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/epoll.h b/sysdeps/unix/sysv/linux/sparc/bits/epoll.h
new file mode 100644
index 0000000000..532402016f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/bits/epoll.h
@@ -0,0 +1,29 @@
+/* Copyright (C) 2002-2012 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef	_SYS_EPOLL_H
+# error "Never use <bits/epoll.h> directly; include <sys/epoll.h> instead."
+#endif
+
+/* Flags to be passed to epoll_create1.  */
+enum
+  {
+    EPOLL_CLOEXEC = 0x400000,
+#define EPOLL_CLOEXEC EPOLL_CLOEXEC
+    EPOLL_NONBLOCK = 0x004000
+#define EPOLL_NONBLOCK EPOLL_NONBLOCK
+  };
diff --git a/sysdeps/unix/sysv/linux/sparc/sys/epoll.h b/sysdeps/unix/sysv/linux/sparc/sys/epoll.h
deleted file mode 100644
index 3d9a1bc146..0000000000
--- a/sysdeps/unix/sysv/linux/sparc/sys/epoll.h
+++ /dev/null
@@ -1,143 +0,0 @@
-/* Copyright (C) 2002-2008, 2010, 2011 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, see
-   <http://www.gnu.org/licenses/>.  */
-
-#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 = 0x400000,
-#define EPOLL_CLOEXEC EPOLL_CLOEXEC
-    EPOLL_NONBLOCK = 0x4000
-#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 = 1u << 30,
-#define EPOLLONESHOT EPOLLONESHOT
-    EPOLLET = 1u << 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/epoll.h b/sysdeps/unix/sysv/linux/sys/epoll.h
index 859a447634..a55ebad622 100644
--- a/sysdeps/unix/sysv/linux/sys/epoll.h
+++ b/sysdeps/unix/sysv/linux/sys/epoll.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002-2009, 2011 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2012 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
@@ -29,15 +29,12 @@
 typedef __sigset_t sigset_t;
 #endif
 
+/* Get the platform-dependent flags.  */
+#include <bits/epoll.h>
 
-/* Flags to be passed to epoll_create1.  */
-enum
-  {
-    EPOLL_CLOEXEC = 02000000,
-#define EPOLL_CLOEXEC EPOLL_CLOEXEC
-    EPOLL_NONBLOCK = 04000
-#define EPOLL_NONBLOCK EPOLL_NONBLOCK
-  };
+#ifndef __EPOLL_PACKED
+# define __EPOLL_PACKED
+#endif
 
 
 enum EPOLL_EVENTS
@@ -89,7 +86,7 @@ struct epoll_event
 {
   uint32_t events;	/* Epoll events */
   epoll_data_t data;	/* User data variable */
-};
+} __EPOLL_PACKED;
 
 
 __BEGIN_DECLS
diff --git a/sysdeps/unix/sysv/linux/x86_64/bits/epoll.h b/sysdeps/unix/sysv/linux/x86_64/bits/epoll.h
new file mode 100644
index 0000000000..be1f5a636f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/x86_64/bits/epoll.h
@@ -0,0 +1,31 @@
+/* Copyright (C) 2002-2012 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef	_SYS_EPOLL_H
+# error "Never use <bits/epoll.h> directly; include <sys/epoll.h> instead."
+#endif
+
+/* Flags to be passed to epoll_create1.  */
+enum
+  {
+    EPOLL_CLOEXEC = 02000000,
+#define EPOLL_CLOEXEC EPOLL_CLOEXEC
+    EPOLL_NONBLOCK = 00004000
+#define EPOLL_NONBLOCK EPOLL_NONBLOCK
+  };
+
+#define __EPOLL_PACKED __attribute__ ((__packed__))
diff --git a/sysdeps/unix/sysv/linux/x86_64/sys/epoll.h b/sysdeps/unix/sysv/linux/x86_64/sys/epoll.h
deleted file mode 100644
index 1d5b329304..0000000000
--- a/sysdeps/unix/sysv/linux/x86_64/sys/epoll.h
+++ /dev/null
@@ -1,143 +0,0 @@
-/* Copyright (C) 2002-2008, 2010, 2011 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, see
-   <http://www.gnu.org/licenses/>.  */
-
-#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 = 02000000,
-#define EPOLL_CLOEXEC EPOLL_CLOEXEC
-    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 = 1u << 30,
-#define EPOLLONESHOT EPOLLONESHOT
-    EPOLLET = 1u << 31
-#define EPOLLET EPOLLET
-  };
-
-
-/* Valid opcodes ( "op" parameter ) to issue to epoll_ctl().  */
-#define EPOLL_CTL_ADD 1	/* Add a file decriptor to the interface.  */
-#define EPOLL_CTL_DEL 2	/* Remove a file decriptor from the interface.  */
-#define EPOLL_CTL_MOD 3	/* Change file decriptor 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 */
-} __attribute__ ((__packed__));
-
-
-__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 */