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/*
* signalfd header
* Copyright (C) 2007 Daniel Drake <dsd@gentoo.org>
*
* Based on glibc header
* Copyright (C) 2007 Free Software Foundation, Inc.
*
* This 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.
*
* This 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __FPUSB_SIGNALFD_H__
#define __FPUSB_SIGNALFD_H__
/* FIXME: in future, remove this and unconditionally use glibc directly when
* glibc-2.8 is widespread */
#include <signal.h>
#include <stdint.h>
#ifdef __i386__
#define __NR_signalfd 321
#elif defined(__x86_64__)
#define __NR_signalfd 282
#else
#error "signalfd unsupported on this architecture"
#endif
/* signalfd() implementation was added as of glibc-2.7 */
#if __GLIBC_PREREQ(2, 7)
int signalfd(int fd, const sigset_t *mask, int flags);
#else
#include <sys/syscall.h>
#define SIZEOF_SIG (_NSIG / 8)
#define SIZEOF_SIGSET (SIZEOF_SIG > sizeof(sigset_t) ? sizeof(sigset_t): SIZEOF_SIG)
static inline int signalfd(int fd, const sigset_t *mask, int flags)
{
return syscall(__NR_signalfd, fd, mask, SIZEOF_SIGSET);
}
#endif
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];
};
#endif
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