xnu-792.21.3.tar.gz

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

diff --git a/bsd/sys/time.h b/bsd/sys/time.h
index a3c667ea0a9a45ce1b3548bf1de0bafd03a29b2e..42539d33aa05670a9cc387e7e1c5bc411d49f015 100644 (file)
--- a/bsd/sys/time.h
+++ b/bsd/sys/time.h
@@ -1,23 +1,29 @@
 /*
 /*

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

  *
  *

- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_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 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.

  * 
  * 

- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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.
+ * 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_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

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


@@ -58,27 +64,147 @@
 #ifndef _SYS_TIME_H_
 #define _SYS_TIME_H_
 
 #ifndef _SYS_TIME_H_
 #define _SYS_TIME_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
+

 
 

-#define getmicrouptime(a) microtime(a)
-#define getmicrotime(a)   microtime(a)

 /*
  * Structure returned by gettimeofday(2) system call,
  * and used in other calls.
  */
 /*
  * Structure returned by gettimeofday(2) system call,
  * and used in other calls.
  */

+#ifndef _TIMEVAL
+#define _TIMEVAL

 struct timeval {
 struct timeval {

-       int32_t tv_sec;         /* seconds */
-       int32_t tv_usec;        /* and microseconds */
+       time_t          tv_sec;         /* seconds */
+       suseconds_t     tv_usec;        /* and microseconds */

 };
 };

+#endif /* _TIMEVAL */
+
+/*
+ * 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 */
+};
+
+/*
+ * 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

 
 

+/*
+ * Select uses bit masks of file descriptors in longs.  These macros
+ * manipulate such bit fields (the filesystem macros use chars).  The
+ * 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 */
+
+#endif /* !_FD_SET */
+
+
+#ifndef _POSIX_C_SOURCE

 /*
  * Structure defined by POSIX.4 to be like a timeval.
  */
 /*
  * Structure defined by POSIX.4 to be like a timeval.
  */

+#ifndef _TIMESPEC
+#define _TIMESPEC

 struct timespec {
        time_t  tv_sec;         /* seconds */
 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 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
+ */
+#if __DARWIN_ALIGN_NATURAL
+#pragma options align=natural
+#endif
+
+struct user_timeval {
+       user_time_t     tv_sec;         /* seconds */
+       suseconds_t     tv_usec;        /* and microseconds */
+};     
+
+struct user_itimerval {
+       struct  user_timeval it_interval;       /* timer interval */
+       struct  user_timeval it_value;          /* current value */
+};
+
+/* 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;        /* and nanoseconds */
 };
 
        int32_t tv_nsec;        /* and nanoseconds */
 };
 

+#if __DARWIN_ALIGN_NATURAL
+#pragma options align=reset
+#endif
+
+#endif // KERNEL
+#endif
+

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


@@ -100,8 +226,6 @@ struct timezone {
 #define        DST_EET         5       /* Eastern European dst */
 #define        DST_CAN         6       /* Canada */
 
 #define        DST_EET         5       /* Eastern European dst */
 #define        DST_CAN         6       /* Canada */
 

-#define time_second time.tv_sec
-

 /* Operations on timevals. */
 #define        timerclear(tvp)         (tvp)->tv_sec = (tvp)->tv_usec = 0
 #define        timerisset(tvp)         ((tvp)->tv_sec || (tvp)->tv_usec)
 /* Operations on timevals. */
 #define        timerclear(tvp)         (tvp)->tv_sec = (tvp)->tv_usec = 0
 #define        timerisset(tvp)         ((tvp)->tv_sec || (tvp)->tv_usec)


@@ -128,18 +252,7 @@ struct timezone {
                }                                                       \
        } while (0)
 
                }                                                       \
        } while (0)
 

-/*
- * Names of the interval timers, and structure
- * defining a timer setting.
- */
-#define        ITIMER_REAL     0
-#define        ITIMER_VIRTUAL  1
-#define        ITIMER_PROF     2
-
-struct itimerval {
-       struct  timeval it_interval;    /* timer interval */
-       struct  timeval it_value;       /* current value */
-};
+#define timevalcmp(l, r, cmp)   timercmp(l, r, cmp) /* freebsd */

 
 /*
  * Getkerninfo clock information structure
 
 /*
  * Getkerninfo clock information structure


@@ -151,28 +264,56 @@ struct clockinfo {
        int     stathz;         /* statistics clock frequency */
        int     profhz;         /* profiling clock frequency */
 };
        int     stathz;         /* statistics clock frequency */
        int     profhz;         /* profiling clock frequency */
 };

+#endif /* ! _POSIX_C_SOURCE */

 
 

-#include <sys/cdefs.h>

 
 #ifdef KERNEL
 
 #ifdef KERNEL

-int    itimerfix __P((struct timeval *tv));
-int    itimerdecr __P((struct itimerval *itp, int usec));
-void   microtime __P((struct timeval *tv));
+
+#ifndef _POSIX_C_SOURCE
+__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);
+#endif /* BSD_KERNEL_PRIVATE */
+
+__END_DECLS
+
+#endif /* ! _POSIX_C_SOURCE */
+

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

+
+__BEGIN_DECLS
+
+#ifndef _POSIX_C_SOURCE

 #include <time.h>
 
 #include <time.h>
 

-#ifndef _POSIX_SOURCE
-#include <sys/cdefs.h>
+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 */
+
+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 *);

 
 

-__BEGIN_DECLS
-int    adjtime __P((const struct timeval *, struct timeval *));
-int    getitimer __P((int, struct itimerval *));
-int    gettimeofday __P((struct timeval *, struct timezone *));
-int    setitimer __P((int, const struct itimerval *, struct itimerval *));
-int    settimeofday __P((const struct timeval *, const struct timezone *));
-int    utimes __P((const char *, const struct timeval *));

 __END_DECLS
 __END_DECLS

-#endif /* !POSIX */

 
 #endif /* !KERNEL */
 
 
 #endif /* !KERNEL */