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xnu-792.6.22.tar.gz
[apple/xnu.git] / osfmk / kern / clock.h
index d6d610c604694bdbc31f9b4629ba8f88d6426957..f90001360e4789697cc9639445e081106211eb8d 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
 #ifndef        _KERN_CLOCK_H_
 #define        _KERN_CLOCK_H_
 
-#include <mach/message.h>
+#include <stdint.h>
+#include <mach/mach_types.h>
 #include <mach/clock_types.h>
+#include <mach/message.h>
 #include <mach/mach_time.h>
 
-#include <sys/appleapiopts.h>
+#include <kern/kern_types.h>
 
-#ifdef __APPLE_API_PRIVATE
+#include <sys/cdefs.h>
 
 #ifdef MACH_KERNEL_PRIVATE
 
-#include <ipc/ipc_port.h>
-
 /*
  * Actual clock alarm structure. Used for user clock_sleep() and
  * clock_alarm() calls. Alarms are allocated from the alarm free
@@ -165,40 +165,34 @@ extern void                       clock_set_timer_func(
 extern void                    clock_set_timer_deadline(
                                                uint64_t                        deadline);
 
-extern void                    mk_timebase_info(
-                                               uint32_t                        *delta,
-                                               uint32_t                        *abs_to_ns_numer,
-                                               uint32_t                        *abs_to_ns_denom,
-                                               uint32_t                        *proc_to_abs_numer,
-                                               uint32_t                        *proc_to_abs_denom);
-
 extern uint32_t                clock_set_calendar_adjtime(
                                                int32_t                         *secs,
                                                int32_t                         *microsecs);
 
 extern uint32_t                clock_adjust_calendar(void);
 
-#endif /* MACH_KERNEL_PRIVATE */
+extern void                    machine_delay_until(
+                                               uint64_t                deadline);
 
-extern void                    clock_get_calendar_microtime(
-                                               uint32_t                        *secs,
-                                               uint32_t                        *microsecs);
+#include <stat_time.h>
 
-extern void                    clock_get_calendar_nanotime(
-                                               uint32_t                        *secs,
-                                               uint32_t                        *nanosecs);
+extern void            hertz_tick(
+#if    STAT_TIME
+                                       natural_t               ticks,
+#endif /* STAT_TIME */
+                                       boolean_t               usermode,       /* executing user code */
+                                       natural_t               pc);
 
-extern void                    clock_set_calendar_microtime(
-                                               uint32_t                        secs,
-                                               uint32_t                        microsecs);
+extern void            absolutetime_to_microtime(
+                                       uint64_t                abstime,
+                                       uint32_t                *secs,
+                                       uint32_t                *microsecs);
 
-extern void                    clock_get_system_microtime(
-                                               uint32_t                        *secs,
-                                               uint32_t                        *microsecs);
+#endif /* MACH_KERNEL_PRIVATE */
 
-extern void                    clock_get_system_nanotime(
-                                               uint32_t                        *secs,
-                                               uint32_t                        *nanosecs);
+__BEGIN_DECLS
+
+#ifdef XNU_KERNEL_PRIVATE
 
 extern void                    clock_adjtime(
                                                int32_t         *secs,
@@ -212,38 +206,37 @@ extern void                       clock_gettimeofday(
                         uint32_t                       *secs,
                         uint32_t                       *microsecs);
 
-#endif /* __APPLE_API_PRIVATE */
+extern void                    clock_set_calendar_microtime(
+                                               uint32_t                        secs,
+                                               uint32_t                        microsecs);
 
-#ifdef __APPLE_API_UNSTABLE
+extern void                    clock_get_boottime_nanotime(
+                                               uint32_t                        *secs,
+                                               uint32_t                        *nanosecs);
 
-#define MACH_TIMESPEC_SEC_MAX          (0 - 1)
-#define MACH_TIMESPEC_NSEC_MAX         (NSEC_PER_SEC - 1)
+extern void                    clock_deadline_for_periodic_event(
+                                               uint64_t                        interval,
+                                               uint64_t                        abstime,
+                                               uint64_t                        *deadline);
 
-#define MACH_TIMESPEC_MAX      ((mach_timespec_t) {                            \
-                                                                       MACH_TIMESPEC_SEC_MAX,          \
-                                                                       MACH_TIMESPEC_NSEC_MAX } )
-#define MACH_TIMESPEC_ZERO     ((mach_timespec_t) { 0, 0 } )
+#endif /* XNU_KERNEL_PRIVATE */
 
-#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)
 
-#endif /* __APPLE_API_UNSTABLE */
+extern void                    clock_get_calendar_microtime(
+                                               uint32_t                        *secs,
+                                               uint32_t                        *microsecs);
 
-extern mach_timespec_t clock_get_system_value(void);
+extern void                    clock_get_calendar_nanotime(
+                                               uint32_t                        *secs,
+                                               uint32_t                        *nanosecs);
 
-extern mach_timespec_t clock_get_calendar_value(void);
+extern void                    clock_get_system_microtime(
+                                               uint32_t                        *secs,
+                                               uint32_t                        *microsecs);
+
+extern void                    clock_get_system_nanotime(
+                                               uint32_t                        *secs,
+                                               uint32_t                        *nanosecs);
 
 extern void                            clock_timebase_info(
                                                        mach_timebase_info_t    info);
@@ -265,15 +258,6 @@ extern void                                clock_absolutetime_interval_to_deadline(
                                                        uint64_t                abstime,
                                                        uint64_t                *result);
 
-extern void                            clock_deadline_for_periodic_event(
-                                                       uint64_t                interval,
-                                                       uint64_t                abstime,
-                                                       uint64_t                *deadline);
-
-extern void                            clock_delay_for_interval(
-                                                       uint32_t                interval,
-                                                       uint32_t                scale_factor);
-
 extern void                            clock_delay_until(
                                                        uint64_t                deadline);
 
@@ -285,9 +269,46 @@ extern void             nanoseconds_to_absolutetime(
                                                        uint64_t                nanoseconds,
                                                        uint64_t                *result);
 
-#if            !defined(MACH_KERNEL_PRIVATE) && !defined(ABSOLUTETIME_SCALAR_TYPE)
+#ifdef KERNEL_PRIVATE
 
-#include <libkern/OSBase.h>
+/*
+ * Obsolete interfaces.
+ */
+
+#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)
+
+
+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))
@@ -313,29 +334,12 @@ extern void             nanoseconds_to_absolutetime(
 #define nanoseconds_to_absolutetime(a, b)      \
        nanoseconds_to_absolutetime((a), __OSAbsoluteTimePtr(b))
 
-#define AbsoluteTime_to_scalar(x)      (*(uint64_t *)(x))
-
-/* t1 < = > t2 */
-#define CMP_ABSOLUTETIME(t1, t2)                               \
-       (AbsoluteTime_to_scalar(t1) >                           \
-               AbsoluteTime_to_scalar(t2)? (int)+1 :   \
-        (AbsoluteTime_to_scalar(t1) <                          \
-               AbsoluteTime_to_scalar(t2)? (int)-1 : 0))
-
-/* t1 += t2 */
-#define ADD_ABSOLUTETIME(t1, t2)                               \
-       (AbsoluteTime_to_scalar(t1) +=                          \
-                               AbsoluteTime_to_scalar(t2))
+#endif /* ABSOLUTETIME_SCALAR_TYPE */
 
-/* t1 -= t2 */
-#define SUB_ABSOLUTETIME(t1, t2)                               \
-       (AbsoluteTime_to_scalar(t1) -=                          \
-                               AbsoluteTime_to_scalar(t2))
+#endif /* !MACH_KERNEL_PRIVATE */
 
-#define ADD_ABSOLUTETIME_TICKS(t1, ticks)              \
-       (AbsoluteTime_to_scalar(t1) +=                          \
-                                               (int32_t)(ticks))
+#endif /* KERNEL_PRIVATE */
 
-#endif
+__END_DECLS
 
 #endif /* _KERN_CLOCK_H_ */