[libvirt] [RFC PATCH 1/6] util: Add API for converting virBitmap into printable string
---
src/libvirt_private.syms | 1 +
src/util/bitmap.c | 32 +++++++++++++++++++++++++++++++-
src/util/bitmap.h | 3 +++
3 files changed, 35 insertions(+), 1 deletions(-)
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index b9e3efe..335d12f 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -16,6 +16,7 @@ virBitmapClearBit;
virBitmapFree;
virBitmapGetBit;
virBitmapSetBit;
+virBitmapString;
# buf.h
diff --git a/src/util/bitmap.c b/src/util/bitmap.c
index 9741668..61280b4 100644
--- a/src/util/bitmap.c
+++ b/src/util/bitmap.c
@@ -1,7 +1,7 @@
/*
* bitmap.h: Simple bitmap operations
*
- * Copyright (C) 2010 Red Hat, Inc.
+ * Copyright (C) 2010-2011 Red Hat, Inc.
* Copyright (C) 2010 Novell, Inc.
*
* This library is free software; you can redistribute it and/or
@@ -32,6 +32,7 @@
#include "bitmap.h"
#include "memory.h"
+#include "buf.h"
struct _virBitmap {
@@ -151,3 +152,32 @@ int virBitmapGetBit(virBitmapPtr bitmap, size_t b, bool *result)
*result = bit != 0;
return 0;
}
+
+/**
+ * virBitmapString:
+ * @bitmap: Pointer to bitmap
+ *
+ * Convert @bitmap to printable string.
+ *
+ * Returns pointer to the string or NULL on error.
+ */
+char *virBitmapString(virBitmapPtr bitmap)
+{
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ size_t sz;
+
+ virBufferAddLit(&buf, "0x");
+
+ sz = (bitmap->size + VIR_BITMAP_BITS_PER_UNIT - 1) /
+ VIR_BITMAP_BITS_PER_UNIT;
+
+ for ( ; sz > 0; sz--)
+ virBufferVSprintf(&buf, "%08x", bitmap->map[sz - 1]);
+
+ if (virBufferError(&buf)) {
+ virBufferFreeAndReset(&buf);
+ return NULL;
+ }
+
+ return virBufferContentAndReset(&buf);
+}
diff --git a/src/util/bitmap.h b/src/util/bitmap.h
index 08515d1..db297b6 100644
--- a/src/util/bitmap.h
+++ b/src/util/bitmap.h
@@ -60,4 +60,7 @@ int virBitmapClearBit(virBitmapPtr bitmap, size_t b)
int virBitmapGetBit(virBitmapPtr bitmap, size_t b, bool *result)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(3) ATTRIBUTE_RETURN_CHECK;
+char *virBitmapString(virBitmapPtr bitmap)
+ ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
+
#endif
--
1.7.4