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authorDavid Howells <dhowells@redhat.com>2012-10-13 10:46:48 +0100
committerDavid Howells <dhowells@redhat.com>2012-10-13 10:46:48 +0100
commit607ca46e97a1b6594b29647d98a32d545c24bdff (patch)
tree30f4c0784bfddb57332cdc0678bd06d1e77fa185 /include/uapi/linux/eventpoll.h
parent08cce05c5a91f5017f4edc9866cf026908c73f9f (diff)
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UAPI: (Scripted) Disintegrate include/linux
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'include/uapi/linux/eventpoll.h')
-rw-r--r--include/uapi/linux/eventpoll.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/include/uapi/linux/eventpoll.h b/include/uapi/linux/eventpoll.h
new file mode 100644
index 000000000000..8c99ce7202c5
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+++ b/include/uapi/linux/eventpoll.h
@@ -0,0 +1,66 @@
+/*
+ * include/linux/eventpoll.h ( Efficient event polling implementation )
+ * Copyright (C) 2001,...,2006 Davide Libenzi
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Davide Libenzi <davidel@xmailserver.org>
+ *
+ */
+
+#ifndef _UAPI_LINUX_EVENTPOLL_H
+#define _UAPI_LINUX_EVENTPOLL_H
+
+/* For O_CLOEXEC */
+#include <linux/fcntl.h>
+#include <linux/types.h>
+
+/* Flags for epoll_create1. */
+#define EPOLL_CLOEXEC O_CLOEXEC
+
+/* Valid opcodes to issue to sys_epoll_ctl() */
+#define EPOLL_CTL_ADD 1
+#define EPOLL_CTL_DEL 2
+#define EPOLL_CTL_MOD 3
+#define EPOLL_CTL_DISABLE 4
+
+/*
+ * Request the handling of system wakeup events so as to prevent system suspends
+ * from happening while those events are being processed.
+ *
+ * Assuming neither EPOLLET nor EPOLLONESHOT is set, system suspends will not be
+ * re-allowed until epoll_wait is called again after consuming the wakeup
+ * event(s).
+ *
+ * Requires CAP_BLOCK_SUSPEND
+ */
+#define EPOLLWAKEUP (1 << 29)
+
+/* Set the One Shot behaviour for the target file descriptor */
+#define EPOLLONESHOT (1 << 30)
+
+/* Set the Edge Triggered behaviour for the target file descriptor */
+#define EPOLLET (1 << 31)
+
+/*
+ * On x86-64 make the 64bit structure have the same alignment as the
+ * 32bit structure. This makes 32bit emulation easier.
+ *
+ * UML/x86_64 needs the same packing as x86_64
+ */
+#ifdef __x86_64__
+#define EPOLL_PACKED __attribute__((packed))
+#else
+#define EPOLL_PACKED
+#endif
+
+struct epoll_event {
+ __u32 events;
+ __u64 data;
+} EPOLL_PACKED;
+
+
+#endif /* _UAPI_LINUX_EVENTPOLL_H */