1 files changed, 42 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/getpriority.c b/sysdeps/unix/sysv/linux/getpriority.c
new file mode 100644
index 0000000000..6dd56cce8b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/getpriority.c
@@ -0,0 +1,42 @@
+/* getpriority for Linux.
+Copyright (C) 1996 Free Software Foundation, Inc.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <sys/resource.h>
+
+extern int __syscall_getpriority (int, int);
+
+/* The return value of __syscall_getpriority is biased by this value
+   to avoid returning negative values.  */
+#define PZERO 20
+
+/* Return the highest priority of any process specified by WHICH and WHO
+   (see above); if WHO is zero, the current process, process group, or user
+   (as specified by WHO) is used.  A lower priority number means higher
+   priority.  Priorities range from PRIO_MIN to PRIO_MAX.  */
+
+int
+getpriority (enum __priority_which which, int who)
+{
+  int res;
+
+  res = __syscall_getpriority ((int) which, who);
+  if (res >= 0)
+    res = PZERO - res;
+  return res;
+}