linux/include/linux/signalfd.h
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   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
  12
  13#ifdef CONFIG_SIGNALFD
  14
  15/*
  16 * Deliver the signal to listening signalfd.
  17 */
  18static 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
  24extern void signalfd_cleanup(struct sighand_struct *sighand);
  25
  26#else /* CONFIG_SIGNALFD */
  27
  28static inline void signalfd_notify(struct task_struct *tsk, int sig) { }
  29
  30static inline void signalfd_cleanup(struct sighand_struct *sighand) { }
  31
  32#endif /* CONFIG_SIGNALFD */
  33
  34#endif /* _LINUX_SIGNALFD_H */
  35
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