include/linux/signal_types.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _LINUX_SIGNAL_TYPES_H
   3 #define _LINUX_SIGNAL_TYPES_H
   4
   5 /*
   6  * Basic signal handling related data type definitions:
   7  */
   8
   9 #include <linux/list.h>
  10 #include <uapi/linux/signal.h>
  11
  12 /*
  13  * Real Time signals may be queued.
  14  */
  15
  16 struct sigqueue {
  17         struct list_head list;
  18         int flags;
  19         siginfo_t info;
  20         struct user_struct *user;
  21 };
  22
  23 /* flags values. */
  24 #define SIGQUEUE_PREALLOC       1
  25
  26 struct sigpending {
  27         struct list_head list;
  28         sigset_t signal;
  29 };
  30
  31 struct sigaction {
  32 #ifndef __ARCH_HAS_IRIX_SIGACTION
  33         __sighandler_t  sa_handler;
  34         unsigned long   sa_flags;
  35 #else
  36         unsigned int    sa_flags;
  37         __sighandler_t  sa_handler;
  38 #endif
  39 #ifdef __ARCH_HAS_SA_RESTORER
  40         __sigrestore_t sa_restorer;
  41 #endif
  42         sigset_t        sa_mask;        /* mask last for extensibility */
  43 };
  44
  45 struct k_sigaction {
  46         struct sigaction sa;
  47 #ifdef __ARCH_HAS_KA_RESTORER
  48         __sigrestore_t ka_restorer;
  49 #endif
  50 };
  51
  52 #ifdef CONFIG_OLD_SIGACTION
  53 struct old_sigaction {
  54         __sighandler_t sa_handler;
  55         old_sigset_t sa_mask;
  56         unsigned long sa_flags;
  57         __sigrestore_t sa_restorer;
  58 };
  59 #endif
  60
  61 struct ksignal {
  62         struct k_sigaction ka;
  63         siginfo_t info;
  64         int sig;
  65 };
  66
  67 #endif /* _LINUX_SIGNAL_TYPES_H */