sched.h File Reference

#include <kernel/sched/wait.h>
#include <kernel/sync/lock.h>
#include <kernel/utils/rbtree.h>
#include <sys/defs.h>
#include <sys/list.h>
#include <sys/proc.h>

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Data Structures
struct	sched_client_t
	Per-thread scheduler context. More...
struct	sched_t
	Per-CPU scheduler. More...

Macros
#define	SCHED_FIXED_POINT   (63LL)
	The bits used for the fractional part of a virtual clock or lag value.
#define	SCHED_FIXED_ZERO   ((int128_t)0)
	Fixed-point zero.
#define	SCHED_EPSILON   (10LL)
	The minimum difference between two virtual clock or lag values to consider then unequal.
#define	SCHED_FIXED_TO(x)   (((int128_t)(x)) << SCHED_FIXED_POINT)
	Convert a regular integer to fixed-point representation.
#define	SCHED_FIXED_FROM(x)   ((int64_t)((int128_t)(x) >> SCHED_FIXED_POINT))
	Convert a fixed-point value to a regular integer.
#define	SCHED_WEIGHT_MAX   (PRIORITY_MAX + SCHED_WEIGHT_BASE)
	The maximum weight a thread can have.
#define	SCHED_WEIGHT_BASE   1
	Base weight added to all threads.
#define	SCHED_SCOPE()
	Disable preemption for the duration of the current scope.

Typedefs
typedef struct process	process_t
typedef struct thread	thread_t
typedef struct sched	sched_t
typedef int128_t	vclock_t
	Virtual clock type.
typedef int128_t	lag_t

Functions
void	sched_client_init (sched_client_t *client)
	Initialize the scheduler context for a thread.
_NORETURN void	sched_start (thread_t *bootThread)
	Starts the scheduler by jumping to the boot thread.
void	sched_submit (thread_t *thread)
	Submits a thread to the scheduler.
void	sched_do (interrupt_frame_t *frame)
	Perform a scheduling operation.
bool	sched_is_idle (cpu_t *cpu)
	Checks if the CPU is currently idle.
uint64_t	sched_nanosleep (clock_t timeout)
	Sleeps the current thread for a specified duration in nanoseconds.
void	sched_yield (void)
	Yield the current thread's time slice to allow other threads to run.
void	sched_disable (void)
	Disables preemption on the current CPU.
void	sched_enable (void)
	Enables preemption on the current CPU.
_NORETURN void	sched_exits (const char *status)
	Terminates the currently executing process and all it's threads.
_NORETURN void	sched_thread_exit (void)
	Terminates the currently executing thread.
_NORETURN void	sched_idle_loop (void)
	The idle loop for the scheduler.
static void	sched_scope_cleanup (int *_)

Variables
sched_t PERCPU	_pcpu_sched
	The per CPU scheduler.

Typedef Documentation

process_t

typedef struct process process_t

Definition at line 11 of file sched.h.

thread_t

typedef struct thread thread_t

Definition at line 12 of file sched.h.

sched_t

typedef struct sched sched_t

Definition at line 14 of file sched.h.