kern/include/devalarm.h

   1 /* Copyright (c) 2013 The Regents of the University of California
   2  * Barret Rhoden <brho@cs.berkeley.edu>
   3  * See LICENSE for details.
   4  *
   5  * Alarm device includes (needed for the linkage to struct proc) */
   6
   7 #pragma once
   8
   9 #include <sys/queue.h>
  10 #include <kref.h>
  11 #include <alarm.h>
  12 #include <atomic.h>
  13 #include <fdtap.h>
  14 #include <rendez.h>
  15
  16 struct proc_alarm {
  17         TAILQ_ENTRY(proc_alarm)         link;
  18         int                                                     id;
  19         struct kref                                     kref;
  20         struct alarm_waiter                     a_waiter;
  21         struct cond_var                         cv;
  22         qlock_t                                         qlock;
  23         struct proc                                     *proc;
  24         struct fdtap_slist                      fd_taps;
  25         unsigned long                           period;
  26         unsigned long                           count;
  27 };
  28 TAILQ_HEAD(proc_alarm_list, proc_alarm);
  29
  30 struct proc_alarm_set {
  31         struct proc_alarm_list          list;
  32         spinlock_t                                      lock;
  33         struct timer_chain                      *tchain;
  34         int                                                     id_counter;
  35 };
  36
  37 void devalarm_init(struct proc *p);