include/linux/signalfd.h

   1 /*
   2  *  include/linux/signalfd.h
   3  *
   4  *  Copyright (C) 2007  Davide Libenzi <davidel@xmailserver.org>
   5  *
   6  */
   7 #ifndef _LINUX_SIGNALFD_H
   8 #define _LINUX_SIGNALFD_H
   9
  10 #include <uapi/linux/signalfd.h>
  11 #include <linux/sched/signal.h>
  12
  13 #ifdef CONFIG_SIGNALFD
  14
  15 /*
  16  * Deliver the signal to listening signalfd.
  17  */
  18 static inline void signalfd_notify(struct task_struct *tsk, int sig)
  19 {
  20         if (unlikely(waitqueue_active(&tsk->sighand->signalfd_wqh)))
  21                 wake_up(&tsk->sighand->signalfd_wqh);
  22 }
  23
  24 extern void signalfd_cleanup(struct sighand_struct *sighand);
  25
  26 #else /* CONFIG_SIGNALFD */
  27
  28 static inline void signalfd_notify(struct task_struct *tsk, int sig) { }
  29
  30 static inline void signalfd_cleanup(struct sighand_struct *sighand) { }
  31
  32 #endif /* CONFIG_SIGNALFD */
  33
  34 #endif /* _LINUX_SIGNALFD_H */