X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Futil.h;h=1bdaeee563ba5a9d0bf2b1275a5e6d63dbdb36e5;hb=62fd02476a93f95f0732056d6a0a340d8eeba8db;hp=d504f2fe9cb09f05954f7db3bd8be0f3888a476a;hpb=6cc7ea5ea05a71f01526577439ebedcc133f99cd;p=openvswitch

diff --git a/lib/util.h b/lib/util.h
index d504f2fe..1bdaeee5 100644
--- a/lib/util.h
+++ b/lib/util.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -78,6 +78,20 @@ extern const char *program_name;
 /* Returns true if X is a power of 2, otherwise false. */
 #define IS_POW2(X) ((X) && !((X) & ((X) - 1)))
 
+static inline bool
+is_pow2(uintmax_t x)
+{
+    return IS_POW2(x);
+}
+
+/* Returns the rightmost 1-bit in 'x' (e.g. 01011000 => 00001000), or 0 if 'x'
+ * is 0. */
+static inline uintmax_t
+rightmost_1bit(uintmax_t x)
+{
+    return x & -x;
+}
+
 #ifndef MIN
 #define MIN(X, Y) ((X) < (Y) ? (X) : (Y))
 #endif
@@ -148,9 +162,10 @@ extern const char *program_name;
 extern "C" {
 #endif
 
-void set_program_name__(const char *name, const char *date, const char *time);
+void set_program_name__(const char *name, const char *version,
+                        const char *date, const char *time);
 #define set_program_name(name) \
-        set_program_name__(name, __DATE__, __TIME__)
+        set_program_name__(name, VERSION, __DATE__, __TIME__)
 
 const char *get_program_version(void);
 void ovs_print_version(uint8_t min_ofp, uint8_t max_ofp);
@@ -213,6 +228,10 @@ void bitwise_copy(const void *src, unsigned int src_len, unsigned int src_ofs,
                   unsigned int n_bits);
 void bitwise_zero(void *dst_, unsigned int dst_len, unsigned dst_ofs,
                   unsigned int n_bits);
+void bitwise_one(void *dst_, unsigned int dst_len, unsigned dst_ofs,
+                 unsigned int n_bits);
+bool bitwise_is_all_zeros(const void *, unsigned int len, unsigned int ofs,
+                          unsigned int n_bits);
 void bitwise_put(uint64_t value,
                  void *dst, unsigned int dst_len, unsigned int dst_ofs,
                  unsigned int n_bits);