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#ifndef __KERNEL_TIMEMGR_H
#define __KERNEL_TIMEMGR_H
#include <kernel/types.h>
#include <kernel/ppcarch.H>
#include <util/locked/pqueue.H>
#include <kernel/spinlock.H>
class Scheduler;
struct _TimeManager_Delay_t
{
_TimeManager_Delay_t * next;
_TimeManager_Delay_t * prev;
uint64_t key;
task_t* task;
};
class TimeManager
{
public:
enum
{
TIMESLICE_PER_SEC = 1000,
};
static void init();
static uint64_t getTimeSliceCount()
{
return iv_timebaseFreq / TIMESLICE_PER_SEC;
};
static uint64_t getCurrentTimeBase()
{
return ppc_getTB();
};
static uint64_t convertSecToTicks(uint64_t i_sec, uint64_t i_nsec);
static void delayTask(task_t* t, uint64_t i_sec, uint64_t i_nsec);
static void checkReleaseTasks(Scheduler* s);
protected:
TimeManager() :
iv_taskList() {};
~TimeManager() {};
private:
void _init();
void _delayTask(task_t* t, uint64_t i_sec, uint64_t i_nsec);
void _checkReleaseTasks(Scheduler* s);
Util::Locked::PQueue<_TimeManager_Delay_t, uint64_t,
true, Spinlock> iv_taskList;
static uint64_t iv_timebaseFreq;
};
#endif
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