From cc298599d82e983ede36d8b8d9e6e5cc517227c2 Mon Sep 17 00:00:00 2001
From: Casey Bodley <cbodley@citi.umich.edu>
Date: Tue, 12 Oct 2010 09:41:53 -0400
Subject: [PATCH] timestamps: bitmap4 helper functions

Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
---
 daemon/util.h | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/daemon/util.h b/daemon/util.h
index 2a77d97..524fdc9 100644
--- a/daemon/util.h
+++ b/daemon/util.h
@@ -52,6 +52,38 @@ bool_t verify_write(
     IN struct __nfs41_write_verf *verf,
     IN OUT enum stable_how4 *stable);
 
+/* bitmap4 */
+static __inline bool_t bitmap_isset(
+    IN const bitmap4 *mask,
+    IN uint32_t word,
+    IN uint32_t flag)
+{
+    return mask->count > word && mask->arr[word] & flag;
+}
+static __inline void bitmap_set(
+    IN bitmap4 *mask,
+    IN uint32_t word,
+    IN uint32_t flag)
+{
+    if (mask->count > word)
+        mask->arr[word] |= flag;
+    else {
+        mask->count = word + 1;
+        mask->arr[word] = flag;
+    }
+}
+static __inline void bitmap_unset(
+    IN bitmap4 *mask,
+    IN uint32_t word,
+    IN uint32_t flag)
+{
+    if (mask->count > word) {
+        mask->arr[word] &= ~flag;
+        while (mask->count && mask->arr[mask->count-1] == 0)
+            mask->count--;
+    }
+}
+
 ULONG nfs_file_info_to_attributes(
     IN const nfs41_file_info *info);
 void nfs_to_basic_info(