diff options
author | Zheng Da <zhengda1936@gmail.com> | 2009-12-06 05:26:23 +0100 |
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committer | Zheng Da <zhengda1936@gmail.com> | 2009-12-06 05:26:23 +0100 |
commit | 8a6d48c0542876eb3acfc0970c0ab7872db08d5f (patch) | |
tree | 496e78bc728317ea779781b92f897d16936ee231 /libdde_linux26/include/linux/.svn/text-base/timer.h.svn-base | |
parent | b4bffcfcdf3ab7a55d664e9aa5907f88da503f38 (diff) |
check in the original version of dde linux26.
Diffstat (limited to 'libdde_linux26/include/linux/.svn/text-base/timer.h.svn-base')
-rw-r--r-- | libdde_linux26/include/linux/.svn/text-base/timer.h.svn-base | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/libdde_linux26/include/linux/.svn/text-base/timer.h.svn-base b/libdde_linux26/include/linux/.svn/text-base/timer.h.svn-base new file mode 100644 index 00000000..149b5207 --- /dev/null +++ b/libdde_linux26/include/linux/.svn/text-base/timer.h.svn-base @@ -0,0 +1,214 @@ +#ifndef _LINUX_TIMER_H +#define _LINUX_TIMER_H + +#include <linux/list.h> +#include <linux/ktime.h> +#include <linux/stddef.h> +#include <linux/debugobjects.h> + +struct tvec_base; + +struct timer_list { + struct list_head entry; + unsigned long expires; + + void (*function)(unsigned long); + unsigned long data; + +#ifndef DDE_LINUX + struct tvec_base *base; +#else /* DDE_LINUX */ + int ddekit_timer_id; +#endif /* DDE_LINUX */ +#ifdef CONFIG_TIMER_STATS + void *start_site; + char start_comm[16]; + int start_pid; +#endif +}; + +extern struct tvec_base boot_tvec_bases; + +#ifndef DDE_LINUX +#define TIMER_INITIALIZER(_function, _expires, _data) { \ + .function = (_function), \ + .expires = (_expires), \ + .data = (_data), \ + .base = &boot_tvec_bases, \ + } +#else +#define TIMER_INITIALIZER(_function, _expires, _data) { \ + .function = (_function), \ + .expires = (_expires), \ + .data = (_data), \ + .ddekit_timer_id = -1, \ + } +#endif /* DDE_LINUX */ + +#define DEFINE_TIMER(_name, _function, _expires, _data) \ + struct timer_list _name = \ + TIMER_INITIALIZER(_function, _expires, _data) + +void init_timer(struct timer_list *timer); +void init_timer_deferrable(struct timer_list *timer); + +#ifdef CONFIG_DEBUG_OBJECTS_TIMERS +extern void init_timer_on_stack(struct timer_list *timer); +extern void destroy_timer_on_stack(struct timer_list *timer); +#else +static inline void destroy_timer_on_stack(struct timer_list *timer) { } +static inline void init_timer_on_stack(struct timer_list *timer) +{ + init_timer(timer); +} +#endif + +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); +} + +#ifndef DDE_LINUX +static inline void setup_timer_on_stack(struct timer_list *timer, + void (*function)(unsigned long), + unsigned long data) +{ + timer->function = function; + timer->data = data; + init_timer_on_stack(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; +} +#else +int timer_pending(const struct timer_list *timer); +#endif /* DDE_LINUX */ + +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 + +/** + * 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. + */ +#ifndef DDE_LINUX +static inline void add_timer(struct timer_list *timer) +{ + BUG_ON(timer_pending(timer)); + __mod_timer(timer, timer->expires); +} +#else +extern void add_timer(struct timer_list *timer); +#endif + +#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); + +unsigned long __round_jiffies_up(unsigned long j, int cpu); +unsigned long __round_jiffies_up_relative(unsigned long j, int cpu); +unsigned long round_jiffies_up(unsigned long j); +unsigned long round_jiffies_up_relative(unsigned long j); + +#endif |