03.07.2020 16:13, Andrey Shinkevich wrote:
Introduce the class BitmapFlags that parses a bitmap flags mask.
Suggested-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkev...@virtuozzo.com>
---
tests/qemu-iotests/qcow2_format.py | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/tests/qemu-iotests/qcow2_format.py
b/tests/qemu-iotests/qcow2_format.py
index 1435e34..d8c058d 100644
--- a/tests/qemu-iotests/qcow2_format.py
+++ b/tests/qemu-iotests/qcow2_format.py
@@ -40,6 +40,22 @@ class Flags64(Qcow2Field):
return str(bits)
+class BitmapFlags(Qcow2Field):
+
+ flags = {
+ 0x1: 'in-use',
+ 0x2: 'auto'
+ }
+
+ def __str__(self):
+ bits = []
+ for bit in range(64):
+ flag = self.value & (1 << bit)
+ if flag:
+ bits.append(self.flags.get(flag, '{:#x}'.format(flag)))
please use f-strings where possible, for consistency.
Also, more obvious notation for unknown bits would be f'bit-{bit}' I think, so
you see number of bit, not big hex number.
+ return f'{self.value:#x} ({bits})'
+
+
class Enum(Qcow2Field):
def __str__(self):
--
Best regards,
Vladimir
