[src/trunk]: src GSoC 2016: Charles Cui: Add timer related macros

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3471c96b0ae8
branches:  trunk
changeset: 345847:3471c96b0ae8
user:      christos <christos%NetBSD.org@localhost>
date:      Fri Jun 10 23:29:20 2016 +0000

description:
GSoC 2016: Charles Cui: Add timer related macros
    _POSIX_CPUTIME
    _POSIX_THREAD_CPUTIME
    _POSIX_DELAYTIMER_MAX

diffstat:

 include/limits.h       |   5 ++++-
 lib/libc/gen/sysconf.3 |  11 ++++++++++-
 lib/libc/gen/sysconf.c |  10 ++++++++--
 sys/kern/kern_time.c   |   7 +++++--
 sys/sys/unistd.h       |   5 ++++-
 5 files changed, 31 insertions(+), 7 deletions(-)

diffs (129 lines):

diff -r 3d5a82087b71 -r 3471c96b0ae8 include/limits.h
--- a/include/limits.h  Fri Jun 10 23:26:43 2016 +0000
+++ b/include/limits.h  Fri Jun 10 23:29:20 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: limits.h,v 1.37 2016/06/10 23:24:33 christos Exp $     */
+/*     $NetBSD: limits.h,v 1.38 2016/06/10 23:29:20 christos Exp $     */
 
 /*
  * Copyright (c) 1988, 1993
@@ -94,6 +94,9 @@
 
 #define        _POSIX_TIMER_MAX        32
 #define        _POSIX_SEM_NSEMS_MAX    256
+#define        _POSIX_CPUTIME          200112L
+#define        _POSIX_THREAD_CPUTIME   200112L
+#define        _POSIX_DELAYTIMER_MAX   32
 #define        _POSIX_TTY_NAME_MAX     9
 #define        _POSIX_TZNAME_MAX       6
 
diff -r 3d5a82087b71 -r 3471c96b0ae8 lib/libc/gen/sysconf.3
--- a/lib/libc/gen/sysconf.3    Fri Jun 10 23:26:43 2016 +0000
+++ b/lib/libc/gen/sysconf.3    Fri Jun 10 23:29:20 2016 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: sysconf.3,v 1.47 2016/06/10 23:26:43 wiz Exp $
+.\"    $NetBSD: sysconf.3,v 1.48 2016/06/10 23:29:20 christos Exp $
 .\"
 .\" Copyright (c) 1993
 .\"    The Regents of the University of California.  All rights reserved.
@@ -185,6 +185,15 @@
 Timers
 option to which the system attempts to conform,
 otherwise \-1.
+.It Li _SC_CPUTIME
+The clockID CLOCK_PROCESS_CPUTIME_ID is supported,
+otherwise \-1.
+.It Li _SC_THREAD_CPUTIME
+The clockID CLOCK_THREAD_CPUTIME_ID is supported,
+otherwise \-1.
+.It Li _SC_DELAYTIMER_MAX
+The maximum number of overrun for a specific timer,
+otherwise \-1.
 .It Li _SC_TZNAME_MAX
 The minimum maximum number of types supported for the name of a
 timezone.
diff -r 3d5a82087b71 -r 3471c96b0ae8 lib/libc/gen/sysconf.c
--- a/lib/libc/gen/sysconf.c    Fri Jun 10 23:26:43 2016 +0000
+++ b/lib/libc/gen/sysconf.c    Fri Jun 10 23:29:20 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: sysconf.c,v 1.38 2016/06/10 23:24:33 christos Exp $    */
+/*     $NetBSD: sysconf.c,v 1.39 2016/06/10 23:29:20 christos Exp $    */
 
 /*-
  * Copyright (c) 1993
@@ -37,7 +37,7 @@
 #if 0
 static char sccsid[] = "@(#)sysconf.c  8.2 (Berkeley) 3/20/94";
 #else
-__RCSID("$NetBSD: sysconf.c,v 1.38 2016/06/10 23:24:33 christos Exp $");
+__RCSID("$NetBSD: sysconf.c,v 1.39 2016/06/10 23:29:20 christos Exp $");
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -422,6 +422,12 @@
                return _POSIX_TIMER_MAX;
        case _SC_SEM_NSEMS_MAX:
                return _POSIX_SEM_NSEMS_MAX;
+       case _SC_CPUTIME:
+               return _POSIX_CPUTIME;
+       case _SC_THREAD_CPUTIME:
+               return _POSIX_THREAD_CPUTIME;
+       case _SC_DELAYTIMER_MAX:
+               return _POSIX_DELAYTIMER_MAX;
        default:
                errno = EINVAL;
                return (-1);
diff -r 3d5a82087b71 -r 3471c96b0ae8 sys/kern/kern_time.c
--- a/sys/kern/kern_time.c      Fri Jun 10 23:26:43 2016 +0000
+++ b/sys/kern/kern_time.c      Fri Jun 10 23:29:20 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: kern_time.c,v 1.186 2016/04/23 23:08:26 christos Exp $ */
+/*     $NetBSD: kern_time.c,v 1.187 2016/06/10 23:29:20 christos Exp $ */
 
 /*-
  * Copyright (c) 2000, 2004, 2005, 2007, 2008, 2009 The NetBSD Foundation, Inc.
@@ -61,7 +61,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_time.c,v 1.186 2016/04/23 23:08:26 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_time.c,v 1.187 2016/06/10 23:29:20 christos Exp $");
 
 #include <sys/param.h>
 #include <sys/resourcevar.h>
@@ -97,6 +97,7 @@
 CTASSERT(ITIMER_PROF == CLOCK_PROF);
 CTASSERT(ITIMER_MONOTONIC == CLOCK_MONOTONIC);
 
+#define        DELAYTIMER_MAX  32
 
 /*
  * Initialize timekeeping.
@@ -980,6 +981,8 @@
                return (EINVAL);
        }
        *retval = pt->pt_poverruns;
+       if (*retval >= DELAYTIMER_MAX)
+               *retval = DELAYTIMER_MAX;
        mutex_spin_exit(&timer_lock);
 
        return (0);
diff -r 3d5a82087b71 -r 3471c96b0ae8 sys/sys/unistd.h
--- a/sys/sys/unistd.h  Fri Jun 10 23:26:43 2016 +0000
+++ b/sys/sys/unistd.h  Fri Jun 10 23:29:20 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: unistd.h,v 1.57 2016/06/10 23:24:33 christos Exp $     */
+/*     $NetBSD: unistd.h,v 1.58 2016/06/10 23:29:20 christos Exp $     */
 
 /*
  * Copyright (c) 1989, 1993
@@ -309,6 +309,9 @@
 
 #define        _SC_TIMER_MAX                   88
 #define        _SC_SEM_NSEMS_MAX               89
+#define        _SC_CPUTIME                     90
+#define        _SC_THREAD_CPUTIME              91
+#define        _SC_DELAYTIMER_MAX              92
 
 /* Extensions found in Solaris and Linux. */
 #define        _SC_PHYS_PAGES          121