* Copyright (c) 2000-2008 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
/*
*/
-#ifndef _KERN_CLOCK_H_
-#define _KERN_CLOCK_H_
+#ifndef _KERN_CLOCK_H_
+#define _KERN_CLOCK_H_
#include <stdint.h>
#include <mach/mach_types.h>
#include <mach/clock_types.h>
#include <mach/message.h>
#include <mach/mach_time.h>
+#include <mach/boolean.h>
#include <kern/kern_types.h>
#include <sys/cdefs.h>
-#ifdef __LP64__
-typedef unsigned long clock_sec_t;
-typedef unsigned int clock_usec_t, clock_nsec_t;
+#ifdef __LP64__
+
+typedef unsigned long clock_sec_t;
+typedef unsigned int clock_usec_t, clock_nsec_t;
-#else /* __LP64__ */
+#else /* __LP64__ */
-typedef uint32_t clock_sec_t;
-typedef uint32_t clock_usec_t, clock_nsec_t;
+typedef uint32_t clock_sec_t;
+typedef uint32_t clock_usec_t, clock_nsec_t;
-#endif /* __LP64__ */
+#endif /* __LP64__ */
-#ifdef MACH_KERNEL_PRIVATE
+#ifdef MACH_KERNEL_PRIVATE
#include <kern/queue.h>
* Clock operations list structure. Contains vectors to machine
* dependent clock routines.
*/
-struct clock_ops {
- int (*c_config)(void); /* configuration */
+struct clock_ops {
+ int (*c_config)(void); /* configuration */
- int (*c_init)(void); /* initialize */
+ int (*c_init)(void); /* initialize */
- kern_return_t (*c_gettime)( /* get time */
- mach_timespec_t *cur_time);
+ kern_return_t (*c_gettime)( /* get time */
+ mach_timespec_t *cur_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_getattr)( /* get attributes */
+ clock_flavor_t flavor,
+ clock_attr_t attr,
+ mach_msg_type_number_t *count);
};
-typedef struct clock_ops *clock_ops_t;
-typedef struct clock_ops clock_ops_data_t;
+typedef const 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 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 clock {
+ clock_ops_t cl_ops; /* operations list */
+ struct ipc_port *cl_service; /* service port */
+ struct ipc_port *cl_control; /* control port */
};
-typedef struct clock clock_data_t;
+typedef struct clock clock_data_t;
/*
* Configure the clock system.
*/
-extern void clock_config(void);
-extern void clock_oldconfig(void);
+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_init(void);
+extern void clock_oldinit(void);
-extern void clock_timebase_init(void);
+extern void clock_timebase_init(void);
/*
* Initialize the clock ipc service facility.
*/
-extern void clock_service_create(void);
+extern void clock_service_create(void);
-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_gettimeofday_set_commpage(
+ uint64_t abstime,
+ uint64_t sec,
+ uint64_t frac,
+ uint64_t scale,
+ uint64_t tick_per_sec);
-extern void machine_delay_until(uint64_t interval,
- uint64_t deadline);
+extern void machine_delay_until(uint64_t interval,
+ uint64_t deadline);
-extern uint32_t hz_tick_interval;
+extern uint32_t hz_tick_interval;
-extern void nanotime_to_absolutetime(
- clock_sec_t secs,
- clock_nsec_t nanosecs,
- uint64_t *result);
+extern void nanotime_to_absolutetime(
+ clock_sec_t secs,
+ clock_nsec_t nanosecs,
+ uint64_t *result);
#endif /* MACH_KERNEL_PRIVATE */
__BEGIN_DECLS
-#ifdef XNU_KERNEL_PRIVATE
+#ifdef XNU_KERNEL_PRIVATE
+
+extern void clock_adjtime(
+ long *secs,
+ int *microsecs);
+
+extern void clock_initialize_calendar(void);
+
+extern void clock_wakeup_calendar(void);
+
+extern void clock_update_calendar(void);
+
+extern void clock_get_calendar_uptime(clock_sec_t *secs);
-extern void clock_adjtime(
- long *secs,
- int *microsecs);
+extern void clock_gettimeofday_new(clock_sec_t *secs,
+ clock_usec_t *microsecs);
+extern void clock_gettimeofday(
+ clock_sec_t *secs,
+ clock_usec_t *microsecs);
-extern void clock_initialize_calendar(void);
+extern void clock_gettimeofday_and_absolute_time(
+ clock_sec_t *secs,
+ clock_usec_t *microsecs,
+ uint64_t *absolute_time);
-extern void clock_wakeup_calendar(void);
-extern void clock_gettimeofday(
- clock_sec_t *secs,
- clock_usec_t *microsecs);
+extern void clock_set_calendar_microtime(
+ clock_sec_t secs,
+ clock_usec_t microsecs);
-extern void clock_set_calendar_microtime(
- clock_sec_t secs,
- clock_usec_t microsecs);
+extern void clock_get_boottime_nanotime(
+ clock_sec_t *secs,
+ clock_nsec_t *nanosecs);
-extern void clock_get_boottime_nanotime(
- clock_sec_t *secs,
- clock_nsec_t *nanosecs);
+extern void clock_get_boottime_microtime(
+ clock_sec_t *secs,
+ clock_nsec_t *microsecs);
-extern void absolutetime_to_microtime(
- uint64_t abstime,
- clock_sec_t *secs,
- clock_usec_t *microsecs);
+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);
+extern void clock_deadline_for_periodic_event(
+ uint64_t interval,
+ uint64_t abstime,
+ uint64_t *deadline);
-#if CONFIG_DTRACE
+#if CONFIG_DTRACE
-extern void clock_get_calendar_nanotime_nowait(
- clock_sec_t *secs,
- clock_nsec_t *nanosecs);
+extern void clock_get_calendar_nanotime_nowait(
+ clock_sec_t *secs,
+ clock_nsec_t *nanosecs);
-#endif /* CONFIG_DTRACE */
+#endif /* CONFIG_DTRACE */
-#endif /* XNU_KERNEL_PRIVATE */
+boolean_t kdp_clock_is_locked(void);
-extern void clock_get_calendar_microtime(
- clock_sec_t *secs,
- clock_usec_t *microsecs);
+#endif /* XNU_KERNEL_PRIVATE */
-extern void clock_get_calendar_absolute_and_microtime(
- clock_sec_t *secs,
- clock_usec_t *microsecs,
- uint64_t *abstime);
+extern void clock_get_calendar_microtime(
+ clock_sec_t *secs,
+ clock_usec_t *microsecs);
-extern void clock_get_calendar_nanotime(
- clock_sec_t *secs,
- clock_nsec_t *nanosecs);
+extern void clock_get_calendar_absolute_and_microtime(
+ clock_sec_t *secs,
+ clock_usec_t *microsecs,
+ uint64_t *abstime);
-extern void clock_get_system_microtime(
- clock_sec_t *secs,
- clock_usec_t *microsecs);
+extern void clock_get_calendar_nanotime(
+ clock_sec_t *secs,
+ clock_nsec_t *nanosecs);
-extern void clock_get_system_nanotime(
- clock_sec_t *secs,
- clock_nsec_t *nanosecs);
+extern void clock_get_system_microtime(
+ clock_sec_t *secs,
+ clock_usec_t *microsecs);
-extern void clock_timebase_info(
- mach_timebase_info_t info);
+extern void clock_get_system_nanotime(
+ clock_sec_t *secs,
+ clock_nsec_t *nanosecs);
-extern void clock_get_uptime(
- uint64_t *result);
+extern void clock_timebase_info(
+ mach_timebase_info_t info);
-extern void clock_interval_to_deadline(
- uint32_t interval,
- uint32_t scale_factor,
- uint64_t *result);
+extern void clock_get_uptime(
+ uint64_t *result);
-extern void clock_interval_to_absolutetime_interval(
- uint32_t interval,
- uint32_t scale_factor,
- uint64_t *result);
+extern void clock_interval_to_deadline(
+ uint32_t interval,
+ uint32_t scale_factor,
+ uint64_t *result);
-extern void clock_absolutetime_interval_to_deadline(
- uint64_t abstime,
- uint64_t *result);
+extern void clock_interval_to_absolutetime_interval(
+ uint32_t interval,
+ uint32_t scale_factor,
+ uint64_t *result);
-extern void clock_delay_until(
- uint64_t deadline);
+extern void clock_absolutetime_interval_to_deadline(
+ uint64_t abstime,
+ uint64_t *result);
-extern void absolutetime_to_nanoseconds(
- uint64_t abstime,
- uint64_t *result);
+extern void clock_continuoustime_interval_to_deadline(
+ uint64_t abstime,
+ uint64_t *result);
-extern void nanoseconds_to_absolutetime(
- uint64_t nanoseconds,
- uint64_t *result);
+extern void clock_delay_until(
+ uint64_t deadline);
-#ifdef KERNEL_PRIVATE
+extern void absolutetime_to_nanoseconds(
+ uint64_t abstime,
+ uint64_t *result);
+
+extern void nanoseconds_to_absolutetime(
+ uint64_t nanoseconds,
+ uint64_t *result);
+
+/*
+ * Absolute <-> Continuous Time conversion routines
+ *
+ * It is the caller's responsibility to ensure that these functions are
+ * synchronized with respect to updates to the continuous timebase. The
+ * returned value is only valid until the next update to the continuous
+ * timebase.
+ *
+ * If the value to be returned by continuoustime_to_absolutetime would be
+ * negative, zero is returned. This occurs when the provided continuous time
+ * is less the amount of the time the system spent asleep and /must/ be
+ * handled.
+ */
+extern uint64_t absolutetime_to_continuoustime(
+ uint64_t abstime);
+extern uint64_t continuoustime_to_absolutetime(
+ uint64_t conttime);
+
+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)
-
-#define MACH_TIMESPEC_MAX ((mach_timespec_t) { \
- MACH_TIMESPEC_SEC_MAX, \
- MACH_TIMESPEC_NSEC_MAX } )
-#define MACH_TIMESPEC_ZERO ((mach_timespec_t) { 0, 0 } )
-
-#define ADD_MACH_TIMESPEC_NSEC(t1, nsec) \
- do { \
- (t1)->tv_nsec += (clock_res_t)(nsec); \
- if ((clock_res_t)(nsec) > 0 && \
- (t1)->tv_nsec >= NSEC_PER_SEC) { \
- (t1)->tv_nsec -= NSEC_PER_SEC; \
- (t1)->tv_sec += 1; \
- } \
- else if ((clock_res_t)(nsec) < 0 && \
- (t1)->tv_nsec < 0) { \
- (t1)->tv_nsec += NSEC_PER_SEC; \
- (t1)->tv_sec -= 1; \
- } \
+#ifndef __LP64__
+
+#define MACH_TIMESPEC_SEC_MAX (0 - 1)
+#define MACH_TIMESPEC_NSEC_MAX (NSEC_PER_SEC - 1)
+
+#define MACH_TIMESPEC_MAX ((mach_timespec_t) { \
+ MACH_TIMESPEC_SEC_MAX, \
+ MACH_TIMESPEC_NSEC_MAX } )
+#define MACH_TIMESPEC_ZERO ((mach_timespec_t) { 0, 0 } )
+
+#define ADD_MACH_TIMESPEC_NSEC(t1, nsec) \
+ do { \
+ (t1)->tv_nsec += (clock_res_t)(nsec); \
+ if ((clock_res_t)(nsec) > 0 && \
+ (t1)->tv_nsec >= NSEC_PER_SEC) { \
+ (t1)->tv_nsec -= NSEC_PER_SEC; \
+ (t1)->tv_sec += 1; \
+ } \
+ else if ((clock_res_t)(nsec) < 0 && \
+ (t1)->tv_nsec < 0) { \
+ (t1)->tv_nsec += NSEC_PER_SEC; \
+ (t1)->tv_sec -= 1; \
+ } \
} while (0)
#include <Availability.h>
/* 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);
+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);
+
+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);
+
+#else /* __LP64__ */
-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);
+#ifdef XNU_KERNEL_PRIVATE
-#else /* __LP64__ */
+#define MACH_TIMESPEC_ZERO ((mach_timespec_t) { 0, 0 } )
-#ifdef XNU_KERNEL_PRIVATE
+#endif /* XNU_KERNEL_PRIVATE */
-#define MACH_TIMESPEC_ZERO ((mach_timespec_t) { 0, 0 } )
+#endif /* __LP64__ */
-#endif /* XNU_KERNEL_PRIVATE */
+extern void delay_for_interval(
+ uint32_t interval,
+ uint32_t scale_factor);
-#endif /* __LP64__ */
+extern void delay_for_interval_with_leeway(
+ uint32_t interval,
+ uint32_t leeway,
+ uint32_t scale_factor);
-extern void delay_for_interval(
- uint32_t interval,
- uint32_t scale_factor);
+#ifdef XNU_KERNEL_PRIVATE
+extern void delay(int usec);
+#endif /* XNU_KERNEL_PRIVATE */
-#endif /* KERNEL_PRIVATE */
+#endif /* KERNEL_PRIVATE */
__END_DECLS
-#endif /* _KERN_CLOCK_H_ */
+#endif /* _KERN_CLOCK_H_ */
projects / apple / xnu.git / blobdiff