Adding upstream version 5.1.upstream/5.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 179 insertions, 0 deletions

diff --git a/lib/sh/timeval.c b/lib/sh/timeval.c
new file mode 100644
index 0000000..f2ca762
--- /dev/null
+++ b/lib/sh/timeval.c
@@ -0,0 +1,179 @@
+/* timeval.c - functions to perform operations on struct timevals */
+
+/* Copyright (C) 1999 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash, the Bourne Again SHell.
+
+   Bash is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Bash 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Bash.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <config.h>
+
+#if defined (HAVE_TIMEVAL)
+
+#include <sys/types.h>
+#include <posixtime.h>
+
+#include <bashintl.h>
+#include <stdc.h>
+
+#ifndef locale_decpoint
+extern int locale_decpoint PARAMS((void));
+#endif
+
+#include <stdio.h>
+
+struct timeval *
+difftimeval (d, t1, t2)
+     struct timeval *d, *t1, *t2;
+{
+  d->tv_sec = t2->tv_sec - t1->tv_sec;
+  d->tv_usec = t2->tv_usec - t1->tv_usec;
+  if (d->tv_usec < 0)
+    {
+      d->tv_usec += 1000000;
+      d->tv_sec -= 1;
+      if (d->tv_sec < 0)		/* ??? -- BSD/OS does this */
+	{
+	  d->tv_sec = 0;
+	  d->tv_usec = 0;
+	}
+    }
+  return d;
+}
+
+struct timeval *
+addtimeval (d, t1, t2)
+     struct timeval *d, *t1, *t2;
+{
+  d->tv_sec = t1->tv_sec + t2->tv_sec;
+  d->tv_usec = t1->tv_usec + t2->tv_usec;
+  if (d->tv_usec >= 1000000)
+    {
+      d->tv_usec -= 1000000;
+      d->tv_sec += 1;
+    }
+  return d;
+}
+
+struct timeval *
+multimeval (d, m)
+     struct timeval *d;
+     int m;
+{
+  time_t t;
+
+  t = d->tv_usec * m;
+  d->tv_sec = d->tv_sec * m + t / 1000000;
+  d->tv_usec = t % 1000000;
+  return d;
+}
+
+struct timeval *
+divtimeval (d, m)
+     struct timeval *d;
+     int m;
+{
+  time_t t;
+
+  t = d->tv_sec;
+  d->tv_sec = t / m;
+  d->tv_usec = (d->tv_usec + 1000000 * (t % m)) / m;
+  return d;
+}
+  
+/* Do "cpu = ((user + sys) * 10000) / real;" with timevals.
+   Barely-tested code from Deven T. Corzine <deven@ties.org>. */
+int
+timeval_to_cpu (rt, ut, st)
+     struct timeval *rt, *ut, *st;	/* real, user, sys */
+{
+  struct timeval t1, t2;
+  register int i;
+
+  addtimeval (&t1, ut, st);
+  t2.tv_sec = rt->tv_sec;
+  t2.tv_usec = rt->tv_usec;
+
+  for (i = 0; i < 6; i++)
+    {
+      if ((t1.tv_sec > 99999999) || (t2.tv_sec > 99999999))
+	break;
+      t1.tv_sec *= 10;
+      t1.tv_sec += t1.tv_usec / 100000;
+      t1.tv_usec *= 10;
+      t1.tv_usec %= 1000000;
+      t2.tv_sec *= 10;
+      t2.tv_sec += t2.tv_usec / 100000;
+      t2.tv_usec *= 10;
+      t2.tv_usec %= 1000000;
+    }
+  for (i = 0; i < 4; i++)
+    {
+      if (t1.tv_sec < 100000000)
+	t1.tv_sec *= 10;
+      else
+	t2.tv_sec /= 10;
+    }
+
+  return ((t2.tv_sec == 0) ? 0 : t1.tv_sec / t2.tv_sec);
+}  
+
+/* Convert a pointer to a struct timeval to seconds and thousandths of a
+   second, returning the values in *SP and *SFP, respectively.  This does
+   rounding on the fractional part, not just truncation to three places. */
+void
+timeval_to_secs (tvp, sp, sfp)
+     struct timeval *tvp;
+     time_t *sp;
+     int *sfp;
+{
+  int rest;
+
+  *sp = tvp->tv_sec;
+
+  *sfp = tvp->tv_usec % 1000000;	/* pretty much a no-op */
+  rest = *sfp % 1000;
+  *sfp = (*sfp * 1000) / 1000000;
+  if (rest >= 500)
+    *sfp += 1;
+
+  /* Sanity check */
+  if (*sfp >= 1000)
+    {
+      *sp += 1;
+      *sfp -= 1000;
+    }
+}
+  
+/* Print the contents of a struct timeval * in a standard way to stdio
+   stream FP.  */
+void
+print_timeval (fp, tvp)
+     FILE *fp;
+     struct timeval *tvp;
+{
+  time_t timestamp;
+  long minutes;
+  int seconds, seconds_fraction;
+
+  timeval_to_secs (tvp, &timestamp, &seconds_fraction);
+
+  minutes = timestamp / 60;
+  seconds = timestamp % 60;
+
+  fprintf (fp, "%ldm%d%c%03ds",  minutes, seconds, locale_decpoint (), seconds_fraction);
+}
+
+#endif /* HAVE_TIMEVAL */