/*
- * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2008 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* @OSF_COPYRIGHT@
*/
/*
- * File: kern/clock.h
- * Purpose: Data structures for the kernel alarm clock
- * facility. This file is used only by kernel
- * level clock facility routines.
*/
#ifndef _KERN_CLOCK_H_
#include <sys/cdefs.h>
-#ifdef MACH_KERNEL_PRIVATE
+#ifdef __LP64__
-/*
- * Actual clock alarm structure. Used for user clock_sleep() and
- * clock_alarm() calls. Alarms are allocated from the alarm free
- * list and entered in time priority order into the active alarm
- * chain of the target clock.
- */
-struct alarm {
- struct alarm *al_next; /* next alarm in chain */
- struct alarm *al_prev; /* previous alarm in chain */
- int al_status; /* alarm status */
- mach_timespec_t al_time; /* alarm time */
- struct { /* message alarm data */
- int type; /* alarm type */
- ipc_port_t port; /* alarm port */
- mach_msg_type_name_t
- port_type; /* alarm port type */
- struct clock *clock; /* alarm clock */
- void *data; /* alarm data */
- } al_alrm;
-#define al_type al_alrm.type
-#define al_port al_alrm.port
-#define al_port_type al_alrm.port_type
-#define al_clock al_alrm.clock
-#define al_data al_alrm.data
- long al_seqno; /* alarm sequence number */
-};
-typedef struct alarm alarm_data_t;
+typedef unsigned long clock_sec_t;
+typedef unsigned int clock_usec_t, clock_nsec_t;
+
+#else /* __LP64__ */
+
+typedef uint32_t clock_sec_t;
+typedef uint32_t clock_usec_t, clock_nsec_t;
-/* alarm status */
-#define ALARM_FREE 0 /* alarm is on free list */
-#define ALARM_SLEEP 1 /* active clock_sleep() */
-#define ALARM_CLOCK 2 /* active clock_alarm() */
-#define ALARM_DONE 4 /* alarm has expired */
+#endif /* __LP64__ */
+
+#ifdef MACH_KERNEL_PRIVATE
+
+#include <kern/queue.h>
/*
* Clock operations list structure. Contains vectors to machine
- * dependent clock routines. The routines c_config, c_init, and
- * c_gettime must be implemented for every clock device.
+ * dependent clock routines.
*/
struct clock_ops {
int (*c_config)(void); /* configuration */
kern_return_t (*c_gettime)( /* get time */
mach_timespec_t *cur_time);
- kern_return_t (*c_settime)( /* set time */
- mach_timespec_t *clock_time);
-
kern_return_t (*c_getattr)( /* get attributes */
clock_flavor_t flavor,
clock_attr_t attr,
mach_msg_type_number_t *count);
-
- kern_return_t (*c_setattr)( /* set attributes */
- clock_flavor_t flavor,
- clock_attr_t attr,
- mach_msg_type_number_t count);
-
- void (*c_setalrm)( /* set next alarm */
- mach_timespec_t *alarm_time);
};
typedef struct clock_ops *clock_ops_t;
typedef struct clock_ops clock_ops_data_t;
/*
* Actual clock object data structure. Contains the machine
- * dependent operations list, clock operations ports, and a
- * chain of pending alarms.
+ * dependent operations list and clock operation ports.
*/
struct clock {
clock_ops_t cl_ops; /* operations list */
struct ipc_port *cl_service; /* service port */
struct ipc_port *cl_control; /* control port */
- struct { /* alarm chain head */
- struct alarm *al_next;
- } cl_alarm;
};
typedef struct clock clock_data_t;
* Configure the clock system.
*/
extern void clock_config(void);
+extern void clock_oldconfig(void);
/*
* Initialize the clock system.
*/
extern void clock_init(void);
+extern void clock_oldinit(void);
extern void clock_timebase_init(void);
*/
extern void clock_service_create(void);
-/*
- * Service clock alarm interrupts. Called from machine dependent
- * layer at splclock(). The clock_id argument specifies the clock,
- * and the clock_time argument gives that clock's current time.
- */
-extern void clock_alarm_intr(
- clock_id_t clock_id,
- mach_timespec_t *clock_time);
-
-extern kern_return_t clock_sleep_internal(
- clock_t clock,
- sleep_type_t sleep_type,
- mach_timespec_t *sleep_time);
-
-typedef void (*clock_timer_func_t)(
- uint64_t timestamp);
+extern void clock_gettimeofday_set_commpage(
+ uint64_t abstime,
+ uint64_t epoch,
+ uint64_t offset,
+ clock_sec_t *secs,
+ clock_usec_t *microsecs);
-extern void clock_set_timer_func(
- clock_timer_func_t func);
-
-extern void clock_set_timer_deadline(
- uint64_t deadline);
-
-extern uint32_t clock_set_calendar_adjtime(
- int32_t *secs,
- int32_t *microsecs);
-
-extern uint32_t clock_adjust_calendar(void);
-
-extern void machine_delay_until(
+extern void machine_delay_until(uint64_t interval,
uint64_t deadline);
-#include <stat_time.h>
-
-extern void hertz_tick(
-#if STAT_TIME
- natural_t ticks,
-#endif /* STAT_TIME */
- boolean_t usermode, /* executing user code */
- natural_t pc);
+extern uint32_t hz_tick_interval;
-extern void absolutetime_to_microtime(
- uint64_t abstime,
- uint32_t *secs,
- uint32_t *microsecs);
+extern void nanotime_to_absolutetime(
+ clock_sec_t secs,
+ clock_nsec_t nanosecs,
+ uint64_t *result);
#endif /* MACH_KERNEL_PRIVATE */
#ifdef XNU_KERNEL_PRIVATE
extern void clock_adjtime(
- int32_t *secs,
- int32_t *microsecs);
+ long *secs,
+ int *microsecs);
extern void clock_initialize_calendar(void);
extern void clock_wakeup_calendar(void);
extern void clock_gettimeofday(
- uint32_t *secs,
- uint32_t *microsecs);
+ clock_sec_t *secs,
+ clock_usec_t *microsecs);
extern void clock_set_calendar_microtime(
- uint32_t secs,
- uint32_t microsecs);
+ clock_sec_t secs,
+ clock_usec_t microsecs);
extern void clock_get_boottime_nanotime(
- uint32_t *secs,
- uint32_t *nanosecs);
+ clock_sec_t *secs,
+ clock_nsec_t *nanosecs);
+
+extern void absolutetime_to_microtime(
+ uint64_t abstime,
+ clock_sec_t *secs,
+ clock_usec_t *microsecs);
extern void clock_deadline_for_periodic_event(
uint64_t interval,
uint64_t abstime,
uint64_t *deadline);
-#endif /* XNU_KERNEL_PRIVATE */
+#if CONFIG_DTRACE
+
+extern void clock_get_calendar_nanotime_nowait(
+ clock_sec_t *secs,
+ clock_nsec_t *nanosecs);
+#endif /* CONFIG_DTRACE */
+
+#endif /* XNU_KERNEL_PRIVATE */
extern void clock_get_calendar_microtime(
- uint32_t *secs,
- uint32_t *microsecs);
+ clock_sec_t *secs,
+ clock_usec_t *microsecs);
+
+extern void clock_get_calendar_absolute_and_microtime(
+ clock_sec_t *secs,
+ clock_usec_t *microsecs,
+ uint64_t *abstime);
extern void clock_get_calendar_nanotime(
- uint32_t *secs,
- uint32_t *nanosecs);
+ clock_sec_t *secs,
+ clock_nsec_t *nanosecs);
extern void clock_get_system_microtime(
- uint32_t *secs,
- uint32_t *microsecs);
+ clock_sec_t *secs,
+ clock_usec_t *microsecs);
extern void clock_get_system_nanotime(
- uint32_t *secs,
- uint32_t *nanosecs);
+ clock_sec_t *secs,
+ clock_nsec_t *nanosecs);
extern void clock_timebase_info(
mach_timebase_info_t info);
uint64_t nanoseconds,
uint64_t *result);
+extern uint64_t mach_absolutetime_asleep;
+extern uint64_t mach_absolutetime_last_sleep;
+
#ifdef KERNEL_PRIVATE
/*
* Obsolete interfaces.
*/
+#ifndef __LP64__
+
#define MACH_TIMESPEC_SEC_MAX (0 - 1)
#define MACH_TIMESPEC_NSEC_MAX (NSEC_PER_SEC - 1)
} \
} while (0)
+#include <Availability.h>
-extern mach_timespec_t clock_get_system_value(void);
-
-extern mach_timespec_t clock_get_calendar_value(void);
-
-extern void delay_for_interval(
- uint32_t interval,
- uint32_t scale_factor);
-#ifndef MACH_KERNEL_PRIVATE
-
-#ifndef ABSOLUTETIME_SCALAR_TYPE
-
-#define clock_get_uptime(a) \
- clock_get_uptime(__OSAbsoluteTimePtr(a))
+/* Use mach_absolute_time() */
+extern mach_timespec_t clock_get_system_value(void) __OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_0, __MAC_10_8, __IPHONE_2_0, __IPHONE_6_0);
-#define clock_interval_to_deadline(a, b, c) \
- clock_interval_to_deadline((a), (b), __OSAbsoluteTimePtr(c))
+extern mach_timespec_t clock_get_calendar_value(void) __OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_0, __MAC_10_8, __IPHONE_2_0, __IPHONE_6_0);
-#define clock_interval_to_absolutetime_interval(a, b, c) \
- clock_interval_to_absolutetime_interval((a), (b), __OSAbsoluteTimePtr(c))
+#else /* __LP64__ */
-#define clock_absolutetime_interval_to_deadline(a, b) \
- clock_absolutetime_interval_to_deadline(__OSAbsoluteTime(a), __OSAbsoluteTimePtr(b))
-
-#define clock_deadline_for_periodic_event(a, b, c) \
- clock_deadline_for_periodic_event(__OSAbsoluteTime(a), __OSAbsoluteTime(b), __OSAbsoluteTimePtr(c))
+#ifdef XNU_KERNEL_PRIVATE
-#define clock_delay_until(a) \
- clock_delay_until(__OSAbsoluteTime(a))
+#define MACH_TIMESPEC_ZERO ((mach_timespec_t) { 0, 0 } )
-#define absolutetime_to_nanoseconds(a, b) \
- absolutetime_to_nanoseconds(__OSAbsoluteTime(a), (b))
+#endif /* XNU_KERNEL_PRIVATE */
-#define nanoseconds_to_absolutetime(a, b) \
- nanoseconds_to_absolutetime((a), __OSAbsoluteTimePtr(b))
+#endif /* __LP64__ */
-#endif /* ABSOLUTETIME_SCALAR_TYPE */
+extern void delay_for_interval(
+ uint32_t interval,
+ uint32_t scale_factor);
-#endif /* !MACH_KERNEL_PRIVATE */
+extern void delay_for_interval_with_leeway(
+ uint32_t interval,
+ uint32_t leeway,
+ uint32_t scale_factor);
#endif /* KERNEL_PRIVATE */
projects / apple / xnu.git / blobdiff