X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/8f6c56a50524aa785f7e596d52dddfb331e18961..490019cf9519204c5fb36b2fba54ceb983bb6b72:/osfmk/kern/clock.h?ds=sidebyside diff --git a/osfmk/kern/clock.h b/osfmk/kern/clock.h index cb605095f..8918ca3c1 100644 --- a/osfmk/kern/clock.h +++ b/osfmk/kern/clock.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2008 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * @@ -29,10 +29,6 @@ * @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_ @@ -48,46 +44,25 @@ #include -#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 /* * 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 */ @@ -97,37 +72,22 @@ struct clock_ops { 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; @@ -135,11 +95,13 @@ 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); @@ -148,51 +110,22 @@ 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 - -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 */ @@ -201,48 +134,65 @@ __BEGIN_DECLS #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); @@ -275,12 +225,17 @@ extern void nanoseconds_to_absolutetime( 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) @@ -304,45 +259,31 @@ extern void nanoseconds_to_absolutetime( } \ } while (0) +#include -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 */