Timer

Macros
#define	TIMER_INTERRUPT_FREQUENCY   82 /* Hz */
#define	TIMER_INTERRUPT_DELTA   12 /* ms */

Functions
struct timer *	timerCreate (bool wakeupAll)
	Creates a new kernel timer object. More...
void	timerInit ()
	Initializes the system timer. More...
uint64_t	timerGetTimestamp ()
	Returns the current kernel timestamp. More...

Variables
struct linkedList	timerList = LL_INIT(timerList)

Detailed Description

Implementation of timer functions.

Macro Definition Documentation

TIMER_INTERRUPT_DELTA

#define TIMER_INTERRUPT_DELTA   12 /* ms */

Definition at line 43 of file timer.c.

TIMER_INTERRUPT_FREQUENCY

#define TIMER_INTERRUPT_FREQUENCY   82 /* Hz */

Definition at line 42 of file timer.c.

Function Documentation

timerCreate()

struct timer* timerCreate

(

bool

wakeupAll

)

Creates a new kernel timer object.

This function allocates and returns the memory for a new kernel timer object, which expires after some time or periodically triggers an event.

Parameters

wakeupAll

Should all waiting threads wake up on expire?

Returns

Pointer to the new kernel timer object

Definition at line 111 of file timer.c.

timerGetTimestamp()

uint64_t timerGetTimestamp

(

)

Returns the current kernel timestamp.

This function returns the current kernel timestamp, which represents the number of milliseconds since the system was booted.

Returns

Kernel timestmap

Definition at line 325 of file timer.c.

timerInit()

void timerInit

(

)

Initializes the system timer.

This function initializes the system timer which is used to schedule threads.

Definition at line 313 of file timer.c.

Variable Documentation

timerList

struct linkedList timerList = LL_INIT(timerList)

Definition at line 47 of file timer.c.