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-rw-r--r--sysdeps/mach/hurd/times.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/times.c b/sysdeps/mach/hurd/times.c
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+/* Return CPU and real time used by process and its children.  Hurd version.
+   Copyright (C) 2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <sys/resource.h>
+#include <sys/times.h>
+#include <sys/time.h>
+#include <time.h>
+#include <mach.h>
+#include <mach/task_info.h>
+#include <hurd.h>
+
+static inline clock_t
+clock_from_time_value (const time_value_t *t)
+{
+  return t->seconds * 1000000 + t->microseconds;
+}
+
+/* Store the CPU time used by this process and all its
+   dead children (and their dead children) in BUFFER.
+   Return the elapsed real time, or (clock_t) -1 for errors.
+   All times are in CLK_TCKths of a second.  */
+clock_t
+__times (struct tms *tms)
+{
+  struct task_basic_info bi;
+  struct task_thread_times_info tti;
+  mach_msg_type_number_t count;
+  time_value_t now;
+  error_t err;
+
+  count = TASK_BASIC_INFO_COUNT;
+  err = __task_info (__mach_task_self (), TASK_BASIC_INFO,
+		     (task_info_t) &bi, &count);
+  if (err)
+    return __hurd_fail (err);
+
+  count = TASK_THREAD_TIMES_INFO_COUNT;
+  err = __task_info (__mach_task_self (), TASK_THREAD_TIMES_INFO,
+		     (task_info_t) &tti, &count);
+  if (err)
+    return __hurd_fail (err);
+
+  tms->tms_utime = (clock_from_time_value (&bi.user_time)
+		    + clock_from_time_value (&tti.user_time));
+  tms->tms_stime = (clock_from_time_value (&bi.system_time)
+		    + clock_from_time_value (&tti.system_time));
+
+  /* XXX This can't be implemented until getrusage(RUSAGE_CHILDREN) can be.  */
+  tms->tms_cutime = tms->tms_cstime = 0;
+
+  err = __host_get_time (__mach_host_self (), &now);
+  if (err)
+    return __hurd_fail (err);
+
+  return (clock_from_time_value (&now)
+	  - clock_from_time_value (&bi.creation_time));
+}
+weak_alias (__times, times)