1 files changed, 94 insertions, 0 deletions
diff --git a/winsup/cygwin/resource.cc b/winsup/cygwin/resource.cc
new file mode 100644
index 000000000..9f1f46c1c
--- /dev/null
+++ b/winsup/cygwin/resource.cc
@@ -0,0 +1,94 @@
+/* resource.cc: getrusage () and friends.
+
+   Copyright 1996, 1997, 1998, 2000 Cygnus Solutions.
+
+   Written by Steve Chamberlain (sac@cygnus.com), Doug Evans (dje@cygnus.com),
+   Geoffrey Noer (noer@cygnus.com) of Cygnus Support.
+   Rewritten by Sergey S. Okhapkin (sos@prospect.com.ru)
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#include <errno.h>
+#include "winsup.h"
+
+/* add timeval values */
+static void
+add_timeval (struct timeval *tv1, struct timeval *tv2)
+{
+  tv1->tv_sec += tv2->tv_sec;
+  tv1->tv_usec += tv2->tv_usec;
+  if (tv1->tv_usec >= 1000000)
+    {
+      tv1->tv_usec -= 1000000;
+      tv1->tv_sec++;
+    }
+}
+
+/* add rusage values of r2 to r1 */
+void __stdcall
+add_rusage (struct rusage *r1, struct rusage *r2)
+{
+  add_timeval (&r1->ru_utime, &r2->ru_utime);
+  add_timeval (&r1->ru_stime, &r2->ru_stime);
+  r1->ru_maxrss += r2->ru_maxrss;
+  r1->ru_ixrss += r2->ru_ixrss;
+  r1->ru_idrss += r2->ru_idrss;
+  r1->ru_isrss += r2->ru_isrss;
+  r1->ru_minflt += r2->ru_minflt;
+  r1->ru_majflt += r2->ru_majflt;
+  r1->ru_nswap += r2->ru_nswap;
+  r1->ru_inblock += r2->ru_inblock;
+  r1->ru_oublock += r2->ru_oublock;
+  r1->ru_msgsnd += r2->ru_msgsnd;
+  r1->ru_msgrcv += r2->ru_msgrcv;
+  r1->ru_nsignals += r2->ru_nsignals;
+  r1->ru_nvcsw += r2->ru_nvcsw;
+  r1->ru_nivcsw += r2->ru_nivcsw;
+}
+
+/* FIXME: what about other fields? */
+void __stdcall
+fill_rusage (struct rusage *r, HANDLE h)
+{
+  FILETIME creation_time = {0,0};
+  FILETIME exit_time = {0,0};
+  FILETIME kernel_time = {0,0};
+  FILETIME user_time = {0,0};
+
+  struct timeval tv;
+
+  GetProcessTimes (h, &creation_time, &exit_time, &kernel_time, &user_time);
+  totimeval (&tv, &kernel_time, 0, 0);
+  add_timeval (&r->ru_stime, &tv);
+  totimeval (&tv, &user_time, 0, 0);
+  add_timeval (&r->ru_utime, &tv);
+}
+
+extern "C"
+int
+getrusage (int intwho, struct rusage *rusage_in)
+{
+  int res = 0;
+  struct rusage r;
+
+  if (intwho == RUSAGE_SELF)
+    {
+      memset (&r, 0, sizeof (r));
+      fill_rusage (&r, hMainProc);
+      *rusage_in = r;
+    }
+  else if (intwho == RUSAGE_CHILDREN)
+    *rusage_in = myself->rusage_children;
+  else
+    {
+      set_errno (EINVAL);
+      res = -1;
+    }
+
+  syscall_printf ("%d = getrusage (%d, %p)", res, intwho, rusage_in);
+  return res;
+}