From bf5dd19d97991de30486abaedb1868f6eb049a70 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Wed, 11 May 2011 09:28:13 +0200 Subject: Implement epoll_create1 and epoll_pwait system calls. Note: TODO: This lacks cancellation support. Signed-off-by: Thierry Reding Signed-off-by: Bernhard Reutner-Fischer --- libc/sysdeps/linux/common/sys/epoll.h | 40 +++++++++++++++++++++++++++++++---- 1 file changed, 36 insertions(+), 4 deletions(-) (limited to 'libc/sysdeps/linux/common/sys') diff --git a/libc/sysdeps/linux/common/sys/epoll.h b/libc/sysdeps/linux/common/sys/epoll.h index 44e814bfd..f6a648872 100644 --- a/libc/sysdeps/linux/common/sys/epoll.h +++ b/libc/sysdeps/linux/common/sys/epoll.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc. +/* 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 @@ -22,6 +22,24 @@ #include #include +/* Get __sigset_t. */ +#include + +#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 { @@ -55,9 +73,9 @@ enum EPOLL_EVENTS /* 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. */ +#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 @@ -83,6 +101,10 @@ __BEGIN_DECLS returned by epoll_create() should be closed with close(). */ extern int epoll_create (int __size) __THROW; +/* Same as epoll_create but with a 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 @@ -107,6 +129,16 @@ extern int epoll_ctl (int __epfd, int __op, int __fd, 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 */ -- cgit v1.2.3