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Diffstat (limited to 'libc/sysdeps/linux/common/getpriority.c')
-rw-r--r--libc/sysdeps/linux/common/getpriority.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/getpriority.c b/libc/sysdeps/linux/common/getpriority.c
new file mode 100644
index 000000000..9f4338464
--- /dev/null
+++ b/libc/sysdeps/linux/common/getpriority.c
@@ -0,0 +1,28 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * getpriority() for uClibc
+ *
+ * Copyright (C) 2000-2004 by Erik Andersen <andersen@codpoet.org>
+ *
+ * GNU Library General Public License (LGPL) version 2 or later.
+ */
+
+#include "syscalls.h"
+#include <sys/resource.h>
+
+#define __NR___syscall_getpriority __NR_getpriority
+static inline _syscall2(int, __syscall_getpriority,
+ __priority_which_t, which, id_t, who);
+
+/* The return value of __syscall_getpriority is biased by this value
+ * to avoid returning negative values. */
+#define PZERO 20
+int getpriority(enum __priority_which which, id_t who)
+{
+ int res;
+
+ res = __syscall_getpriority(which, who);
+ if (res >= 0)
+ res = PZERO - res;
+ return res;
+}