xnu-1504.3.12.tar.gz

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

diff --git a/bsd/sys/time.h b/bsd/sys/time.h
index 66bb20d1d24a8d75fdb7aa98a29bb44284ce355c..732d1ae761595ede38aaa6c50ffee6ea234053b3 100644 (file)
--- a/bsd/sys/time.h
+++ b/bsd/sys/time.h
@@ -1,14 +1,19 @@
 /*
 /*

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

  *
  *

- * @APPLE_LICENSE_HEADER_START@
+ * @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
  * 
  * 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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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
  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER


@@ -18,7 +23,7 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
  * 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 */
 /*


@@ -61,6 +66,28 @@
 
 #include <sys/cdefs.h>
 #include <sys/_types.h>
 
 #include <sys/cdefs.h>
 #include <sys/_types.h>

+#ifdef KERNEL
+#include <machine/types.h>     /* user_time_t */
+#endif /* KERNEL */
+
+/*
+ * [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>
+ */
+#define __need_fd_set
+#define __need_struct_timespec
+#define __need_struct_timeval
+#ifdef KERNEL
+#define __need_struct_user_timespec
+#define __need_struct_user32_timespec
+#define __need_struct_user64_timespec
+#define __need_struct_user_timeval
+#define __need_struct_user32_timeval
+#define __need_struct_user64_timeval
+#define __need_struct_user32_itimerval
+#define __need_struct_user64_itimerval
+#endif /* KERNEL */
+#include <sys/_structs.h>

 
 #ifndef        _TIME_T
 #define        _TIME_T
 
 #ifndef        _TIME_T
 #define        _TIME_T


@@ -72,19 +99,6 @@ typedef      __darwin_time_t time_t;
 typedef __darwin_suseconds_t   suseconds_t;
 #endif
 
 typedef __darwin_suseconds_t   suseconds_t;
 #endif
 

-
-/*
- * Structure returned by gettimeofday(2) system call,
- * and used in other calls.
- */
-#ifndef _TIMEVAL
-#define _TIMEVAL
-struct timeval {
-       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.
 /*
  * Structure used as a parameter by getitimer(2) and setitimer(2) system
  * calls.


@@ -102,16 +116,6 @@ struct     itimerval {
 #define        ITIMER_VIRTUAL  1
 #define        ITIMER_PROF     2
 
 #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
 /*
  * Select uses bit masks of file descriptors in longs.  These macros
  * manipulate such bit fields (the filesystem macros use chars).  The


@@ -119,86 +123,26 @@ struct    itimerval {
  * the default size.
  */
 #ifndef        FD_SETSIZE
  * 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.
- */
-#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 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 */
-};
-
-#if __DARWIN_ALIGN_NATURAL
-#pragma options align=reset
-#endif
-
-#endif // KERNEL
-#endif
+#define        FD_SETSIZE      __DARWIN_FD_SETSIZE
+#endif /* FD_SETSIZE */
+#ifndef FD_SET
+#define        FD_SET(n, p)    __DARWIN_FD_SET(n, p)
+#endif /* FD_SET */
+#ifndef        FD_CLR
+#define        FD_CLR(n,p)     __DARWIN_FD_CLR(n, p)
+#endif /* FD_CLR */
+#ifndef FD_ISSET
+#define        FD_ISSET(n, p)  __DARWIN_FD_ISSET(n, p)
+#endif /* FD_ISSET */
+#ifndef FD_ZERO
+#define        FD_ZERO(p)      __DARWIN_FD_ZERO(p)
+#endif /* FD_ZERO */
+
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+
+#ifndef FD_COPY
+#define        FD_COPY(f, t)   __DARWIN_FD_COPY(f, t)
+#endif /* FD_COPY */

 
 #define        TIMEVAL_TO_TIMESPEC(tv, ts) {                                   \
        (ts)->tv_sec = (tv)->tv_sec;                                    \
 
 #define        TIMEVAL_TO_TIMESPEC(tv, ts) {                                   \
        (ts)->tv_sec = (tv)->tv_sec;                                    \


@@ -259,12 +203,11 @@ 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 */
-
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 
 #ifdef KERNEL
 
 
 #ifdef KERNEL
 

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

 __BEGIN_DECLS
 void   microtime(struct timeval *tv);
 void   microuptime(struct timeval *tv);
 __BEGIN_DECLS
 void   microtime(struct timeval *tv);
 void   microuptime(struct timeval *tv);


@@ -279,31 +222,33 @@ void      timevalsub(struct timeval *t1, struct timeval *t2);
 void   timevalfix(struct timeval *t1);
 #ifdef BSD_KERNEL_PRIVATE
 time_t boottime_sec(void);
 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   inittodr(time_t base) __attribute__((section("__TEXT, initcode")));

 #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 */
 

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

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

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

 
 

+__BEGIN_DECLS
+
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 int    adjtime(const struct timeval *, struct timeval *);
 int    futimes(int, const struct timeval *);
 int    adjtime(const struct timeval *, struct timeval *);
 int    futimes(int, const struct timeval *);

+int    lutimes(const char *, const struct timeval *);

 int    settimeofday(const struct timeval *, const struct timezone *);
 int    settimeofday(const struct timeval *, const struct timezone *);

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

 
 int    getitimer(int, struct itimerval *);
 
 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    gettimeofday(struct timeval * __restrict, void * __restrict);
+
+#include <sys/_select.h>       /* select() prototype */
+

 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 *);