Subversion Repositories test_project

#ifndef _LINUX_TIMER_H

#define _LINUX_TIMER_H

#include <linux/list.h>

#include <linux/ktime.h>

#include <linux/stddef.h>

struct tvec_t_base_s;

struct timer_list {

        struct list_head entry;

        unsigned long expires;

        void (*function)(unsigned long);

        unsigned long data;

        struct tvec_t_base_s *base;

#ifdef CONFIG_TIMER_STATS

        void *start_site;

        char start_comm[16];

        int start_pid;

#endif

};

extern struct tvec_t_base_s boot_tvec_bases;

#define TIMER_INITIALIZER(_function, _expires, _data) {         \

                .function = (_function),                        \

                .expires = (_expires),                          \

                .data = (_data),                                \

                .base = &boot_tvec_bases,                       \

        }

#define DEFINE_TIMER(_name, _function, _expires, _data)         \

        struct timer_list _name =                               \

                TIMER_INITIALIZER(_function, _expires, _data)

void fastcall init_timer(struct timer_list * timer);

void fastcall init_timer_deferrable(struct timer_list *timer);

static inline void setup_timer(struct timer_list * timer,

                                void (*function)(unsigned long),

                                unsigned long data)

{

        timer->function = function;

        timer->data = data;

        init_timer(timer);

}

/**

 * timer_pending - is a timer pending?

 * @timer: the timer in question

 *

 * timer_pending will tell whether a given timer is currently pending,

 * or not. Callers must ensure serialization wrt. other operations done

 * to this timer, eg. interrupt contexts, or other CPUs on SMP.

 *

 * return value: 1 if the timer is pending, 0 if not.

 */

static inline int timer_pending(const struct timer_list * timer)

{

        return timer->entry.next != NULL;

}

extern void add_timer_on(struct timer_list *timer, int cpu);

extern int del_timer(struct timer_list * timer);

extern int __mod_timer(struct timer_list *timer, unsigned long expires);

extern int mod_timer(struct timer_list *timer, unsigned long expires);

/*

 * The jiffies value which is added to now, when there is no timer

 * in the timer wheel:

 */

#define NEXT_TIMER_MAX_DELTA    ((1UL << 30) - 1)

/*

 * Return when the next timer-wheel timeout occurs (in absolute jiffies),

 * locks the timer base:

 */

extern unsigned long next_timer_interrupt(void);

/*

 * Return when the next timer-wheel timeout occurs (in absolute jiffies),

 * locks the timer base and does the comparison against the given

 * jiffie.

 */

extern unsigned long get_next_timer_interrupt(unsigned long now);

/*

 * Timer-statistics info:

 */

#ifdef CONFIG_TIMER_STATS

#define TIMER_STATS_FLAG_DEFERRABLE     0x1

extern void init_timer_stats(void);

extern void timer_stats_update_stats(void *timer, pid_t pid, void *startf,

                                     void *timerf, char *comm,

                                     unsigned int timer_flag);

extern void __timer_stats_timer_set_start_info(struct timer_list *timer,

                                               void *addr);

static inline void timer_stats_timer_set_start_info(struct timer_list *timer)

{

        __timer_stats_timer_set_start_info(timer, __builtin_return_address(0));

}

static inline void timer_stats_timer_clear_start_info(struct timer_list *timer)

{

        timer->start_site = NULL;

}

#else

static inline void init_timer_stats(void)

{

}

static inline void timer_stats_timer_set_start_info(struct timer_list *timer)

{

}

static inline void timer_stats_timer_clear_start_info(struct timer_list *timer)

{

}

#endif

extern void delayed_work_timer_fn(unsigned long __data);

/**

 * add_timer - start a timer

 * @timer: the timer to be added

 *

 * The kernel will do a ->function(->data) callback from the

 * timer interrupt at the ->expires point in the future. The

 * current time is 'jiffies'.

 *

 * The timer's ->expires, ->function (and if the handler uses it, ->data)

 * fields must be set prior calling this function.

 *

 * Timers with an ->expires field in the past will be executed in the next

 * timer tick.

 */

static inline void add_timer(struct timer_list *timer)

{

        BUG_ON(timer_pending(timer));

        __mod_timer(timer, timer->expires);

}

#ifdef CONFIG_SMP

  extern int try_to_del_timer_sync(struct timer_list *timer);

  extern int del_timer_sync(struct timer_list *timer);

#else

# define try_to_del_timer_sync(t)       del_timer(t)

# define del_timer_sync(t)              del_timer(t)

#endif

#define del_singleshot_timer_sync(t) del_timer_sync(t)

extern void init_timers(void);

extern void run_local_timers(void);

struct hrtimer;

extern enum hrtimer_restart it_real_fn(struct hrtimer *);

unsigned long __round_jiffies(unsigned long j, int cpu);

unsigned long __round_jiffies_relative(unsigned long j, int cpu);

unsigned long round_jiffies(unsigned long j);

unsigned long round_jiffies_relative(unsigned long j);

#endif