include/uapi/linux/signalfd.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 /*
   3  *  include/linux/signalfd.h
   4  *
   5  *  Copyright (C) 2007  Davide Libenzi <davidel@xmailserver.org>
   6  *
   7  */
   8
   9 #ifndef _UAPI_LINUX_SIGNALFD_H
  10 #define _UAPI_LINUX_SIGNALFD_H
  11
  12 #include <linux/types.h>
  13 /* For O_CLOEXEC and O_NONBLOCK */
  14 #include <linux/fcntl.h>
  15
  16 /* Flags for signalfd4.  */
  17 #define SFD_CLOEXEC O_CLOEXEC
  18 #define SFD_NONBLOCK O_NONBLOCK
  19
  20 struct signalfd_siginfo {
  21         __u32 ssi_signo;
  22         __s32 ssi_errno;
  23         __s32 ssi_code;
  24         __u32 ssi_pid;
  25         __u32 ssi_uid;
  26         __s32 ssi_fd;
  27         __u32 ssi_tid;
  28         __u32 ssi_band;
  29         __u32 ssi_overrun;
  30         __u32 ssi_trapno;
  31         __s32 ssi_status;
  32         __s32 ssi_int;
  33         __u64 ssi_ptr;
  34         __u64 ssi_utime;
  35         __u64 ssi_stime;
  36         __u64 ssi_addr;
  37         __u16 ssi_addr_lsb;
  38
  39         /*
  40          * Pad strcture to 128 bytes. Remember to update the
  41          * pad size when you add new members. We use a fixed
  42          * size structure to avoid compatibility problems with
  43          * future versions, and we leave extra space for additional
  44          * members. We use fixed size members because this strcture
  45          * comes out of a read(2) and we really don't want to have
  46          * a compat on read(2).
  47          */
  48         __u8 __pad[46];
  49 };
  50
  51
  52
  53 #endif /* _UAPI_LINUX_SIGNALFD_H */