xnu-1504.9.17.tar.gz

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

diff --git a/bsd/sys/select.h b/bsd/sys/select.h
index ad0719f9fcc6a2f50c3ea9753fb034d40d55c271..79237174b7eb606a8e67fc553f3dfe190972fe65 100644 (file)
--- a/bsd/sys/select.h
+++ b/bsd/sys/select.h
@@ -1,14 +1,19 @@
 /*
  * Copyright (c) 2000-2005 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@

  * 
  * 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) 1992, 1993
  */
 /*
  * Copyright (c) 1992, 1993


@@ -62,11 +67,20 @@
 #include <sys/cdefs.h>
 #include <sys/_types.h>
 
 #include <sys/cdefs.h>
 #include <sys/_types.h>
 

+/*
+ * [XSI] The <sys/select.h> header shall define the fd_set type as a structure.
+ * The timespec structure shall be defined as described in <time.h>
+ * The <sys/select.h> header shall define the timeval structure.
+ */
+#define __need_fd_set
+#define __need_struct_timespec
+#define __need_struct_timeval
+#include <sys/_structs.h>
+

 /*
  * The time_t and suseconds_t types shall be defined as described in
  * <sys/types.h>
  * The sigset_t type shall be defined as described in <signal.h>
 /*
  * The time_t and suseconds_t types shall be defined as described in
  * <sys/types.h>
  * The sigset_t type shall be defined as described in <signal.h>

- * The timespec structure shall be defined as described in <time.h>

  */
 #ifndef        _TIME_T
 #define        _TIME_T
  */
 #ifndef        _TIME_T
 #define        _TIME_T


@@ -83,25 +97,11 @@ typedef __darwin_suseconds_t        suseconds_t;
 typedef __darwin_sigset_t      sigset_t;
 #endif
 
 typedef __darwin_sigset_t      sigset_t;
 #endif
 

-#ifndef _TIMESPEC
-#define _TIMESPEC
-struct timespec {
-       time_t  tv_sec;
-       long    tv_nsec;
-};
-#endif
-

 /*
 /*

- * [XSI] The <sys/select.h> header shall define the fd_set type as a structure.

  * [XSI] FD_CLR, FD_ISSET, FD_SET, FD_ZERO may be declared as a function, or
  *      defined as a macro, or both
  * [XSI] FD_SETSIZE shall be defined as a macro
  * [XSI] FD_CLR, FD_ISSET, FD_SET, FD_ZERO may be declared as a function, or
  *      defined as a macro, or both
  * [XSI] FD_SETSIZE shall be defined as a macro

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


@@ -110,34 +110,25 @@ struct timespec {
  * 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? */
-
-typedef        struct fd_set {
-       __int32_t       fds_bits[__DARWIN_howmany(FD_SETSIZE, __DARWIN_NFDBITS)];
-} fd_set;
-
-#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 */
+#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 */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 
 #ifdef KERNEL
 #ifdef KERNEL_PRIVATE
 
 #ifdef KERNEL
 #ifdef KERNEL_PRIVATE


@@ -169,33 +160,37 @@ struct selinfo;
 
 __BEGIN_DECLS
 
 
 __BEGIN_DECLS
 

+extern int selwait;

 void   selrecord(proc_t selector, struct selinfo *, void *);
 void   selwakeup(struct selinfo *);
 void   selthreadclear(struct selinfo *);
 
 __END_DECLS
 
 void   selrecord(proc_t selector, struct selinfo *, void *);
 void   selwakeup(struct selinfo *);
 void   selthreadclear(struct selinfo *);
 
 __END_DECLS
 

-#endif /* KERNEL */
-
-
-#ifndef KERNEL
-#ifndef _POSIX_C_SOURCE
-#include <sys/types.h>
-#ifndef  __MWERKS__
-#include <signal.h>
-#endif /* __MWERKS__ */
-#include <sys/time.h>
-#endif /* !_POSIX_C_SOURCE */
+#else /* !KERNEL */

 
 __BEGIN_DECLS
 
 __BEGIN_DECLS

+

 #ifndef  __MWERKS__
 int     pselect(int, fd_set * __restrict, fd_set * __restrict,
                fd_set * __restrict, const struct timespec * __restrict,
 #ifndef  __MWERKS__
 int     pselect(int, fd_set * __restrict, fd_set * __restrict,
                fd_set * __restrict, const struct timespec * __restrict,

-               const sigset_t * __restrict);
+               const sigset_t * __restrict)
+#if defined(_DARWIN_C_SOURCE) || defined(_DARWIN_UNLIMITED_SELECT)
+               __DARWIN_EXTSN_C(pselect)
+#else /* !_DARWIN_C_SOURCE && !_DARWIN_UNLIMITED_SELECT */
+#  if defined(__LP64__) && !__DARWIN_NON_CANCELABLE
+               __DARWIN_1050(pselect)
+#  else /* !__LP64__ || __DARWIN_NON_CANCELABLE */
+               __DARWIN_ALIAS_C(pselect)
+#  endif /* __LP64__ && !__DARWIN_NON_CANCELABLE */
+#endif /* _DARWIN_C_SOURCE || _DARWIN_UNLIMITED_SELECT */
+               ;

 #endif /* __MWERKS__ */
 #endif /* __MWERKS__ */

-int     select(int, fd_set * __restrict, fd_set * __restrict,
-               fd_set * __restrict, struct timeval * __restrict);
+
+#include <sys/_select.h>       /* select() prototype */
+

 __END_DECLS
 __END_DECLS

+

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