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Diffstat (limited to 'include/linux/posix-timers.h')
-rw-r--r--include/linux/posix-timers.h90
1 files changed, 33 insertions, 57 deletions
diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h
index f942e2bad8e3..54faf5236da0 100644
--- a/include/linux/posix-timers.h
+++ b/include/linux/posix-timers.h
@@ -42,7 +42,7 @@ struct k_itimer {
42 timer_t it_id; /* timer id */ 42 timer_t it_id; /* timer id */
43 int it_overrun; /* overrun on pending signal */ 43 int it_overrun; /* overrun on pending signal */
44 int it_overrun_last; /* overrun on last delivered signal */ 44 int it_overrun_last; /* overrun on last delivered signal */
45 int it_requeue_pending; /* waiting to requeue this timer */ 45 int it_requeue_pending; /* waiting to requeue this timer */
46#define REQUEUE_PENDING 1 46#define REQUEUE_PENDING 1
47 int it_sigev_notify; /* notify word of sigevent struct */ 47 int it_sigev_notify; /* notify word of sigevent struct */
48 int it_sigev_signo; /* signo word of sigevent struct */ 48 int it_sigev_signo; /* signo word of sigevent struct */
@@ -51,10 +51,8 @@ struct k_itimer {
51 struct sigqueue *sigq; /* signal queue entry. */ 51 struct sigqueue *sigq; /* signal queue entry. */
52 union { 52 union {
53 struct { 53 struct {
54 struct timer_list timer; 54 struct hrtimer timer;
55 struct list_head abs_timer_entry; /* clock abs_timer_list */ 55 ktime_t interval;
56 struct timespec wall_to_prev; /* wall_to_monotonic used when set */
57 unsigned long incr; /* interval in jiffies */
58 } real; 56 } real;
59 struct cpu_timer_list cpu; 57 struct cpu_timer_list cpu;
60 struct { 58 struct {
@@ -66,18 +64,14 @@ struct k_itimer {
66 } it; 64 } it;
67}; 65};
68 66
69struct k_clock_abs {
70 struct list_head list;
71 spinlock_t lock;
72};
73struct k_clock { 67struct k_clock {
74 int res; /* in nano seconds */ 68 int res; /* in nanoseconds */
75 int (*clock_getres) (clockid_t which_clock, struct timespec *tp); 69 int (*clock_getres) (const clockid_t which_clock, struct timespec *tp);
76 struct k_clock_abs *abs_struct; 70 int (*clock_set) (const clockid_t which_clock, struct timespec * tp);
77 int (*clock_set) (clockid_t which_clock, struct timespec * tp); 71 int (*clock_get) (const clockid_t which_clock, struct timespec * tp);
78 int (*clock_get) (clockid_t which_clock, struct timespec * tp);
79 int (*timer_create) (struct k_itimer *timer); 72 int (*timer_create) (struct k_itimer *timer);
80 int (*nsleep) (clockid_t which_clock, int flags, struct timespec *); 73 int (*nsleep) (const clockid_t which_clock, int flags,
74 struct timespec *, struct timespec __user *);
81 int (*timer_set) (struct k_itimer * timr, int flags, 75 int (*timer_set) (struct k_itimer * timr, int flags,
82 struct itimerspec * new_setting, 76 struct itimerspec * new_setting,
83 struct itimerspec * old_setting); 77 struct itimerspec * old_setting);
@@ -87,53 +81,35 @@ struct k_clock {
87 struct itimerspec * cur_setting); 81 struct itimerspec * cur_setting);
88}; 82};
89 83
90void register_posix_clock(clockid_t clock_id, struct k_clock *new_clock); 84void register_posix_clock(const clockid_t clock_id, struct k_clock *new_clock);
91 85
92/* Error handlers for timer_create, nanosleep and settime */ 86/* error handlers for timer_create, nanosleep and settime */
93int do_posix_clock_notimer_create(struct k_itimer *timer); 87int do_posix_clock_notimer_create(struct k_itimer *timer);
94int do_posix_clock_nonanosleep(clockid_t, int flags, struct timespec *); 88int do_posix_clock_nonanosleep(const clockid_t, int flags, struct timespec *,
95int do_posix_clock_nosettime(clockid_t, struct timespec *tp); 89 struct timespec __user *);
90int do_posix_clock_nosettime(const clockid_t, struct timespec *tp);
96 91
97/* function to call to trigger timer event */ 92/* function to call to trigger timer event */
98int posix_timer_event(struct k_itimer *timr, int si_private); 93int posix_timer_event(struct k_itimer *timr, int si_private);
99 94
100struct now_struct { 95int posix_cpu_clock_getres(const clockid_t which_clock, struct timespec *ts);
101 unsigned long jiffies; 96int posix_cpu_clock_get(const clockid_t which_clock, struct timespec *ts);
102}; 97int posix_cpu_clock_set(const clockid_t which_clock, const struct timespec *ts);
103 98int posix_cpu_timer_create(struct k_itimer *timer);
104#define posix_get_now(now) (now)->jiffies = jiffies; 99int posix_cpu_nsleep(const clockid_t which_clock, int flags,
105#define posix_time_before(timer, now) \ 100 struct timespec *rqtp, struct timespec __user *rmtp);
106 time_before((timer)->expires, (now)->jiffies) 101int posix_cpu_timer_set(struct k_itimer *timer, int flags,
107 102 struct itimerspec *new, struct itimerspec *old);
108#define posix_bump_timer(timr, now) \ 103int posix_cpu_timer_del(struct k_itimer *timer);
109 do { \ 104void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec *itp);
110 long delta, orun; \ 105
111 delta = now.jiffies - (timr)->it.real.timer.expires; \ 106void posix_cpu_timer_schedule(struct k_itimer *timer);
112 if (delta >= 0) { \ 107
113 orun = 1 + (delta / (timr)->it.real.incr); \ 108void run_posix_cpu_timers(struct task_struct *task);
114 (timr)->it.real.timer.expires += \ 109void posix_cpu_timers_exit(struct task_struct *task);
115 orun * (timr)->it.real.incr; \ 110void posix_cpu_timers_exit_group(struct task_struct *task);
116 (timr)->it_overrun += orun; \ 111
117 } \ 112void set_process_cpu_timer(struct task_struct *task, unsigned int clock_idx,
118 }while (0) 113 cputime_t *newval, cputime_t *oldval);
119
120int posix_cpu_clock_getres(clockid_t which_clock, struct timespec *);
121int posix_cpu_clock_get(clockid_t which_clock, struct timespec *);
122int posix_cpu_clock_set(clockid_t which_clock, const struct timespec *tp);
123int posix_cpu_timer_create(struct k_itimer *);
124int posix_cpu_nsleep(clockid_t, int, struct timespec *);
125int posix_cpu_timer_set(struct k_itimer *, int,
126 struct itimerspec *, struct itimerspec *);
127int posix_cpu_timer_del(struct k_itimer *);
128void posix_cpu_timer_get(struct k_itimer *, struct itimerspec *);
129
130void posix_cpu_timer_schedule(struct k_itimer *);
131
132void run_posix_cpu_timers(struct task_struct *);
133void posix_cpu_timers_exit(struct task_struct *);
134void posix_cpu_timers_exit_group(struct task_struct *);
135
136void set_process_cpu_timer(struct task_struct *, unsigned int,
137 cputime_t *, cputime_t *);
138 114
139#endif 115#endif
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-30 21:39:23 -0400