summaryrefslogtreecommitdiff
path: root/sysdeps/generic/vtimes.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/generic/vtimes.c')
-rw-r--r--sysdeps/generic/vtimes.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/sysdeps/generic/vtimes.c b/sysdeps/generic/vtimes.c
new file mode 100644
index 0000000000..37dc01b2fb
--- /dev/null
+++ b/sysdeps/generic/vtimes.c
@@ -0,0 +1,65 @@
+/* Copyright (C) 1991, 1997, 1998 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 <stddef.h>
+#include <sys/vtimes.h>
+#include <sys/resource.h>
+
+/* Return the number of 1/VTIMES_UNITS_PER_SECOND-second
+ units in the `struct timeval' TV. */
+#define TIMEVAL_TO_VTIMES(tv) \
+ ((tv.tv_sec * VTIMES_UNITS_PER_SECOND) + \
+ (tv.tv_usec * VTIMES_UNITS_PER_SECOND / 1000000))
+
+/* If VT is not NULL, write statistics for WHO into *VT.
+ Return 0 for success, -1 for failure. */
+static int
+vtimes_one (struct vtimes *vt, enum __rusage_who who)
+{
+ if (vt != NULL)
+ {
+ struct rusage usage;
+
+ if (__getrusage (who, &usage) < 0)
+ return -1;
+
+ vt->vm_utime = TIMEVAL_TO_VTIMES (usage.ru_utime);
+ vt->vm_stime = TIMEVAL_TO_VTIMES (usage.ru_stime);
+ vt->vm_idsrss = usage.ru_idrss + usage.ru_isrss;
+ vt->vm_majflt = usage.ru_majflt;
+ vt->vm_minflt = usage.ru_minflt;
+ vt->vm_nswap = usage.ru_nswap;
+ vt->vm_inblk = usage.ru_inblock;
+ vt->vm_oublk = usage.ru_oublock;
+ }
+ return 0;
+}
+
+/* If CURRENT is not NULL, write statistics for the current process into
+ *CURRENT. If CHILD is not NULL, write statistics for all terminated child
+ processes into *CHILD. Returns 0 for success, -1 for failure. */
+int
+vtimes (current, child)
+ struct vtimes *current;
+ struct vtimes *child;
+{
+ if (vtimes_one (current, RUSAGE_SELF) < 0
+ || vtimes_one (child, RUSAGE_CHILDREN) < 0)
+ return -1;
+ return 0;
+}