xnu-7195.101.1.tar.gz

[apple/xnu.git] / bsd / sys / time.h

diff --git a/bsd/sys/time.h b/bsd/sys/time.h
index 2801abed4430cb68f2752817ae1474e0e74cf845..c94a0d04e8f4b9582a88590b5c66708281ca1a14 100644 (file)
--- a/bsd/sys/time.h
+++ b/bsd/sys/time.h
@@ -1,23 +1,29 @@
 /*
 /*

- * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_HEADER_START@
- * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * @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
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * 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,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
+ * 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@

  */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
 /*
  */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
 /*


@@ -60,56 +66,55 @@
 
 #include <sys/cdefs.h>
 #include <sys/_types.h>
 
 #include <sys/cdefs.h>
 #include <sys/_types.h>

-
-#ifndef        _TIME_T
-#define        _TIME_T
-typedef        __darwin_time_t time_t;
-#endif
-
-#ifndef _SUSECONDS_T
-#define _SUSECONDS_T
-typedef __darwin_suseconds_t   suseconds_t;
-#endif
-
+#ifdef KERNEL
+#include <machine/types.h>      /* user_time_t */
+#include <stdint.h>             /* uint64_t */
+#else /* !KERNEL */
+#include <Availability.h>
+#endif /* KERNEL */

 
 /*
 
 /*

- * Structure returned by gettimeofday(2) system call,
- * and used in other calls.
+ * [XSI] The fd_set type shall be defined as described in <sys/select.h>.
+ * The timespec structure shall be defined as described in <time.h>

  */
  */

-#ifndef _TIMEVAL
-#define _TIMEVAL
-struct timeval {
-       time_t          tv_sec;         /* seconds */
-       suseconds_t     tv_usec;        /* and microseconds */
-};
-#endif /* _TIMEVAL */
+#include <sys/_types/_fd_def.h>
+#include <sys/_types/_timespec.h>
+#include <sys/_types/_timeval.h>
+
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+#include <sys/_types/_timeval64.h>
+#endif /* !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) */
+
+#ifdef KERNEL
+#include <sys/_types/_user_timespec.h>
+#include <sys/_types/_user32_timespec.h>
+#include <sys/_types/_user64_timespec.h>
+#include <sys/_types/_user_timeval.h>
+#include <sys/_types/_user32_timeval.h>
+#include <sys/_types/_user64_timeval.h>
+#include <sys/_types/_user32_itimerval.h>
+#include <sys/_types/_user64_itimerval.h>
+#endif /* KERNEL */
+
+#include <sys/_types/_time_t.h>
+#include <sys/_types/_suseconds_t.h>

 
 /*
  * Structure used as a parameter by getitimer(2) and setitimer(2) system
  * calls.
  */
 
 /*
  * Structure used as a parameter by getitimer(2) and setitimer(2) system
  * calls.
  */

-struct itimerval {
-       struct  timeval it_interval;    /* timer interval */
-       struct  timeval it_value;       /* current value */
+struct  itimerval {
+       struct  timeval it_interval;    /* timer interval */
+       struct  timeval it_value;       /* current value */

 };
 
 /*
  * Names of the interval timers, and structure
  * defining a timer setting.
  */
 };
 
 /*
  * Names of the interval timers, and structure
  * defining a timer setting.
  */

-#define        ITIMER_REAL     0
-#define        ITIMER_VIRTUAL  1
-#define        ITIMER_PROF     2
-
-
-/*
- * [XSI] The fd_set type shall be defined as described in <sys/select.h>.
- *
- * Note:       We use _FD_SET to protect all select related
- *             types and macros
- */
-#ifndef _FD_SET
-#define        _FD_SET
+#define ITIMER_REAL     0
+#define ITIMER_VIRTUAL  1
+#define ITIMER_PROF     2

 
 /*
  * Select uses bit masks of file descriptors in longs.  These macros
 
 /*
  * Select uses bit masks of file descriptors in longs.  These macros


@@ -117,137 +122,67 @@ struct   itimerval {
  * extra protection here is to permit application redefinition above
  * the default size.
  */
  * extra protection here is to permit application redefinition above
  * the default size.
  */

-#ifndef        FD_SETSIZE
-#define        FD_SETSIZE      1024
-#endif
-
-#define        __DARWIN_NBBY   8                               /* bits in a byte */
-#define __DARWIN_NFDBITS       (sizeof(__int32_t) * __DARWIN_NBBY) /* bits per mask */
-#define        __DARWIN_howmany(x, y) (((x) + ((y) - 1)) / (y))        /* # y's == x bits? */
-
-__BEGIN_DECLS
-typedef        struct fd_set {
-       __int32_t       fds_bits[__DARWIN_howmany(FD_SETSIZE, __DARWIN_NFDBITS)];
-} fd_set;
-__END_DECLS
-
-#define        FD_SET(n, p)    ((p)->fds_bits[(n)/__DARWIN_NFDBITS] |= (1<<((n) % __DARWIN_NFDBITS)))
-#define        FD_CLR(n, p)    ((p)->fds_bits[(n)/__DARWIN_NFDBITS] &= ~(1<<((n) % __DARWIN_NFDBITS)))
-#define        FD_ISSET(n, p)  ((p)->fds_bits[(n)/__DARWIN_NFDBITS] & (1<<((n) % __DARWIN_NFDBITS)))
-#if __GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ >= 3
-/*
- * Use the built-in bzero function instead of the library version so that
- * we do not pollute the namespace or introduce prototype warnings.
- */
-#define        FD_ZERO(p)      __builtin_bzero(p, sizeof(*(p)))
-#else
-#define        FD_ZERO(p)      bzero(p, sizeof(*(p)))
-#endif
-#ifndef _POSIX_C_SOURCE
-#define        FD_COPY(f, t)   bcopy(f, t, sizeof(*(f)))
-#endif /* !_POSIX_C_SOURCE */
+#include <sys/_types/_fd_setsize.h>
+#include <sys/_types/_fd_set.h>
+#include <sys/_types/_fd_clr.h>
+#include <sys/_types/_fd_isset.h>
+#include <sys/_types/_fd_zero.h>

 
 

-#endif /* !_FD_SET */
-
-
-#ifndef _POSIX_C_SOURCE
-/*
- * Structure defined by POSIX.4 to be like a timeval.
- */
-#ifndef _TIMESPEC
-#define _TIMESPEC
-struct timespec {
-       time_t  tv_sec;         /* seconds */
-       long    tv_nsec;        /* and nanoseconds */
-};
-
-#ifdef KERNEL
-// LP64todo - should this move?
-#include <machine/types.h>     /* user_time_t */
-
-/* LP64 version of struct timespec.  time_t is a long and must grow when 
- * we're dealing with a 64-bit process.
- * WARNING - keep in sync with struct timespec
- */
-struct user_timespec {
-       user_time_t     tv_sec;         /* seconds */
-       int32_t tv_nsec __attribute((aligned(8)));      /* and nanoseconds */
-};
-
-#endif
-#endif
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 
 

+#include <sys/_types/_fd_copy.h>

 
 

+#define TIMEVAL_TO_TIMESPEC(tv, ts) {                                   \
+       (ts)->tv_sec = (tv)->tv_sec;                                    \
+       (ts)->tv_nsec = (tv)->tv_usec * 1000;                           \
+}

 #ifdef KERNEL
 #ifdef KERNEL

-#ifndef _USERTIMEVAL
-#define _USERTIMEVAL
-
-#include <machine/types.h>     /* user_time_t */
-/*
- * LP64 version of struct timeval.  time_t is a long and must grow when 
- * we're dealing with a 64-bit process.
- * WARNING - keep in sync with struct timeval
- */
-
-struct user_timeval {
-       user_time_t     tv_sec;         /* seconds */
-       suseconds_t     tv_usec __attribute((aligned(8)));      /* and microseconds */
-};     
-
-struct user_itimerval {
-       struct  user_timeval it_interval;       /* timer interval */
-       struct  user_timeval it_value;          /* current value */
-};
-
-#endif
-#endif // KERNEL
-
-
-#define        TIMEVAL_TO_TIMESPEC(tv, ts) {                                   \
-       (ts)->tv_sec = (tv)->tv_sec;                                    \
-       (ts)->tv_nsec = (tv)->tv_usec * 1000;                           \
+#define TIMEVAL64_TO_TIMESPEC(tv, ts){                                                                  \
+       (ts)->tv_sec = (time_t)((tv)->tv_sec);                                          \
+       (ts)->tv_nsec = (tv)->tv_usec * 1000;                                           \

 }
 }

-#define        TIMESPEC_TO_TIMEVAL(tv, ts) {                                   \
-       (tv)->tv_sec = (ts)->tv_sec;                                    \
-       (tv)->tv_usec = (ts)->tv_nsec / 1000;                           \
+#endif
+#define TIMESPEC_TO_TIMEVAL(tv, ts) {                                   \
+       (tv)->tv_sec = (ts)->tv_sec;                                    \
+       (tv)->tv_usec = (ts)->tv_nsec / 1000;                           \

 }
 
 struct timezone {
 }
 
 struct timezone {

-       int     tz_minuteswest; /* minutes west of Greenwich */
-       int     tz_dsttime;     /* type of dst correction */
+       int     tz_minuteswest; /* minutes west of Greenwich */
+       int     tz_dsttime;     /* type of dst correction */

 };
 };

-#define        DST_NONE        0       /* not on dst */
-#define        DST_USA         1       /* USA style dst */
-#define        DST_AUST        2       /* Australian style dst */
-#define        DST_WET         3       /* Western European dst */
-#define        DST_MET         4       /* Middle European dst */
-#define        DST_EET         5       /* Eastern European dst */
-#define        DST_CAN         6       /* Canada */
+#define DST_NONE        0       /* not on dst */
+#define DST_USA         1       /* USA style dst */
+#define DST_AUST        2       /* Australian style dst */
+#define DST_WET         3       /* Western European dst */
+#define DST_MET         4       /* Middle European dst */
+#define DST_EET         5       /* Eastern European dst */
+#define DST_CAN         6       /* Canada */

 
 /* Operations on timevals. */
 
 /* Operations on timevals. */

-#define        timerclear(tvp)         (tvp)->tv_sec = (tvp)->tv_usec = 0
-#define        timerisset(tvp)         ((tvp)->tv_sec || (tvp)->tv_usec)
-#define        timercmp(tvp, uvp, cmp)                                         \
-       (((tvp)->tv_sec == (uvp)->tv_sec) ?                             \
-           ((tvp)->tv_usec cmp (uvp)->tv_usec) :                       \
+#define timerclear(tvp)         (tvp)->tv_sec = (tvp)->tv_usec = 0
+#define timerisset(tvp)         ((tvp)->tv_sec || (tvp)->tv_usec)
+#define timercmp(tvp, uvp, cmp)                                         \
+       (((tvp)->tv_sec == (uvp)->tv_sec) ?                             \
+           ((tvp)->tv_usec cmp (uvp)->tv_usec) :                       \

            ((tvp)->tv_sec cmp (uvp)->tv_sec))
            ((tvp)->tv_sec cmp (uvp)->tv_sec))

-#define        timeradd(tvp, uvp, vvp)                                         \
-       do {                                                            \
-               (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec;          \
-               (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec;       \
-               if ((vvp)->tv_usec >= 1000000) {                        \
-                       (vvp)->tv_sec++;                                \
-                       (vvp)->tv_usec -= 1000000;                      \
-               }                                                       \
+#define timeradd(tvp, uvp, vvp)                                         \
+       do {                                                            \
+               (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec;          \
+               (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec;       \
+               if ((vvp)->tv_usec >= 1000000) {                        \
+                       (vvp)->tv_sec++;                                \
+                       (vvp)->tv_usec -= 1000000;                      \
+               }                                                       \

        } while (0)
        } while (0)

-#define        timersub(tvp, uvp, vvp)                                         \
-       do {                                                            \
-               (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec;          \
-               (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec;       \
-               if ((vvp)->tv_usec < 0) {                               \
-                       (vvp)->tv_sec--;                                \
-                       (vvp)->tv_usec += 1000000;                      \
-               }                                                       \
+#define timersub(tvp, uvp, vvp)                                         \
+       do {                                                            \
+               (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec;          \
+               (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec;       \
+               if ((vvp)->tv_usec < 0) {                               \
+                       (vvp)->tv_sec--;                                \
+                       (vvp)->tv_usec += 1000000;                      \
+               }                                                       \

        } while (0)
 
 #define timevalcmp(l, r, cmp)   timercmp(l, r, cmp) /* freebsd */
        } while (0)
 
 #define timevalcmp(l, r, cmp)   timercmp(l, r, cmp) /* freebsd */


@@ -256,60 +191,69 @@ struct timezone {
  * Getkerninfo clock information structure
  */
 struct clockinfo {
  * Getkerninfo clock information structure
  */
 struct clockinfo {

-       int     hz;             /* clock frequency */
-       int     tick;           /* micro-seconds per hz tick */
-       int     tickadj;        /* clock skew rate for adjtime() */
-       int     stathz;         /* statistics clock frequency */
-       int     profhz;         /* profiling clock frequency */
+       int     hz;             /* clock frequency */
+       int     tick;           /* micro-seconds per hz tick */
+       int     tickadj;        /* clock skew rate for adjtime() */
+       int     stathz;         /* statistics clock frequency */
+       int     profhz;         /* profiling clock frequency */

 };
 };

-#endif /* ! _POSIX_C_SOURCE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 
 

+#ifdef XNU_KERNEL_PRIVATE
+#define SETTIME_ENTITLEMENT "com.apple.private.settime"
+#endif

 
 #ifdef KERNEL
 
 
 #ifdef KERNEL
 

-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 __BEGIN_DECLS
 __BEGIN_DECLS

-void   microtime(struct timeval *tv);
-void   microuptime(struct timeval *tv);
-#define getmicrotime(a)                microtime(a)
-#define getmicrouptime(a)      microuptime(a)
-void   nanotime(struct timespec *ts);
-void   nanouptime(struct timespec *ts);
-#define getnanotime(a)         nanotime(a)
-#define getnanouptime(a)       nanouptime(a)
-void   timevaladd(struct timeval *t1, struct timeval *t2);
-void   timevalsub(struct timeval *t1, struct timeval *t2);
-void   timevalfix(struct timeval *t1);
-#ifdef BSD_KERNEL_PRIVATE
-time_t boottime_sec(void);
-void   inittodr(time_t base);
-int    itimerfix(struct timeval *tv);
-int    itimerdecr(struct itimerval *itp, int usec);
+void    microtime(struct timeval *tv);
+void    microtime_with_abstime(struct timeval *tv, uint64_t *abstime);
+void    microuptime(struct timeval *tv);
+#define getmicrotime(a)         microtime(a)
+#define getmicrouptime(a)       microuptime(a)
+void    nanotime(struct timespec *ts);
+void    nanouptime(struct timespec *ts);
+#define getnanotime(a)          nanotime(a)
+#define getnanouptime(a)        nanouptime(a)
+void    timevaladd(struct timeval *t1, struct timeval *t2);
+void    timevalsub(struct timeval *t1, struct timeval *t2);
+void    timevalfix(struct timeval *t1);
+#ifdef  BSD_KERNEL_PRIVATE
+time_t  boottime_sec(void);
+void    boottime_timeval(struct timeval *tv);
+void    inittodr(time_t base);
+int     ratecheck(struct timeval *lasttime, const struct timeval *mininterval);
+int     ppsratecheck(struct timeval *lasttime, int *curpps, int maxpps);

 #endif /* BSD_KERNEL_PRIVATE */
 
 __END_DECLS
 
 #endif /* BSD_KERNEL_PRIVATE */
 
 __END_DECLS
 

-#endif /* ! _POSIX_C_SOURCE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 
 #else /* !KERNEL */
 
 
 #else /* !KERNEL */
 

+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+#include <time.h>
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
+

 __BEGIN_DECLS
 
 __BEGIN_DECLS
 

-#ifndef _POSIX_C_SOURCE
-#include <time.h>
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+int     adjtime(const struct timeval *, struct timeval *);
+int     futimes(int, const struct timeval *);
+int     lutimes(const char *, const struct timeval *) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);
+int     settimeofday(const struct timeval *, const struct timezone *);
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
+
+int     getitimer(int, struct itimerval *);
+int     gettimeofday(struct timeval * __restrict, void * __restrict);

 
 

-int    adjtime(const struct timeval *, struct timeval *);
-int    futimes(int, const struct timeval *);
-int    settimeofday(const struct timeval *, const struct timezone *);
-#endif /* ! _POSIX_C_SOURCE */
+#include <sys/_select.h>        /* select() prototype */

 
 

-int    getitimer(int, struct itimerval *);
-int    gettimeofday(struct timeval * __restrict, struct timezone * __restrict);
-int    select(int, fd_set * __restrict, fd_set * __restrict,
-               fd_set * __restrict, struct timeval * __restrict);
-int    setitimer(int, const struct itimerval * __restrict,
-               struct itimerval * __restrict);
-int    utimes(const char *, const struct timeval *);
+int     setitimer(int, const struct itimerval * __restrict,
+    struct itimerval * __restrict);
+int     utimes(const char *, const struct timeval *);

 
 __END_DECLS
 
 
 __END_DECLS