timer.c File Reference

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Classes
struct	_timer
Defines
#define	__DEBUG   0
Typedefs
typedef struct _timer	ddekit_timer_t
Enumerations
enum	{ DDEKIT_TIMEOUT_NEVER = 0xFFFFFFFF }
Functions
static void	dump_list (char *msg)
static void	__notify_timer_thread (void)
	Notify the timer thread there is a new timer at the beginning of the timer list.
int	ddekit_add_timer (void(*fn)(void *), void *args, unsigned long timeout)
	Add a timer event.
int	ddekit_del_timer (int timer)
	Delete timer with the corresponding timer id.
int	ddekit_timer_pending (int timer)
	Check whether a timer with a given ID is still pending.
static ddekit_timer_t *	get_next_timer (void)
	Get the next timer function to run.
static int	__timer_sleep (unsigned to)
	Let the timer thread sleep for a while.
static void	ddekit_timer_thread (void *arg)
ddekit_thread_t *	ddekit_get_timer_thread ()
	Get the timer thread.
void	ddekit_init_timers (void)
	Initialization function, startup timer thread.
Variables
volatile unsigned long	jiffies
unsigned long	HZ
static ddekit_timer_t *	timer_list = NULL
	list of pending timers
static l4lock_t	timer_lock = L4LOCK_UNLOCKED
	lock to access timer_list
static l4_threadid_t	timer_thread = L4_NIL_ID
	the timer thread
static ddekit_thread_t *	timer_thread_ddekit = NULL
	ddekit ID of timer thread
static ddekit_sem_t *	notify_semaphore = NULL
	timer thread's wait semaphore
static int	timer_id_ctr = 0

---

Define Documentation

#define __DEBUG   0

Definition at line 16 of file ddekit/src/timer.c.

---

Typedef Documentation

typedef struct _timer ddekit_timer_t

---

Enumeration Type Documentation

anonymous enum

Enumerator:

DDEKIT_TIMEOUT_NEVER

Definition at line 237 of file ddekit/src/timer.c.

---

Function Documentation

static void __notify_timer_thread

(

void

)

[inline, static]

Notify the timer thread there is a new timer at the beginning of the timer list.

Definition at line 65 of file ddekit/src/timer.c.

static int __timer_sleep

(

unsigned

to

)

[inline, static]

Let the timer thread sleep for a while.

Parameters:

to

timeout in msec

Returns:

1 if IPC timed out 0 if message received -> recalc timeout

Definition at line 249 of file ddekit/src/timer.c.

ddekit_thread_t* ddekit_get_timer_thread

(

void

)

Get the timer thread.

Definition at line 315 of file ddekit/src/timer.c.

static void ddekit_timer_thread

(

void *

arg

)

[static]

Definition at line 277 of file ddekit/src/timer.c.

static void dump_list

(

char *

msg

)

[static]

Definition at line 46 of file ddekit/src/timer.c.

static ddekit_timer_t* get_next_timer

(

void

)

[static]

Get the next timer function to run.

Returns:

NULL if no timer is to be run now != NULL next timer to execute

Definition at line 220 of file ddekit/src/timer.c.

---

Variable Documentation

unsigned long HZ

volatile unsigned long jiffies

ddekit_sem_t* notify_semaphore = NULL [static]

timer thread's wait semaphore

Definition at line 42 of file ddekit/src/timer.c.

int timer_id_ctr = 0 [static]

Definition at line 44 of file ddekit/src/timer.c.

ddekit_timer_t* timer_list = NULL [static]

list of pending timers

Definition at line 38 of file ddekit/src/timer.c.

l4lock_t timer_lock = L4LOCK_UNLOCKED [static]

lock to access timer_list

Definition at line 39 of file ddekit/src/timer.c.

l4_threadid_t timer_thread = L4_NIL_ID [static]

the timer thread

Definition at line 40 of file ddekit/src/timer.c.

ddekit_thread_t* timer_thread_ddekit = NULL [static]

ddekit ID of timer thread

Definition at line 41 of file ddekit/src/timer.c.