本文整理汇总了Python中rbd.Image.aio_discard方法的典型用法代码示例。如果您正苦于以下问题：Python Image.aio_discard方法的具体用法？Python Image.aio_discard怎么用？Python Image.aio_discard使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类rbd.Image的用法示例。
在下文中一共展示了Image.aio_discard方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: TestImage
# 需要导入模块: from rbd import Image [as 别名]
# 或者: from rbd.Image import aio_discard [as 别名]
#.........这里部分代码省略.........
def test_list_lockers(self):
eq([], self.image.list_lockers())
self.image.lock_exclusive('test')
lockers = self.image.list_lockers()
eq(1, len(lockers['lockers']))
_, cookie, _ = lockers['lockers'][0]
eq(cookie, 'test')
eq('', lockers['tag'])
assert lockers['exclusive']
self.image.unlock('test')
eq([], self.image.list_lockers())
num_shared = 10
for i in range(num_shared):
self.image.lock_shared(str(i), 'tag')
lockers = self.image.list_lockers()
eq('tag', lockers['tag'])
assert not lockers['exclusive']
eq(num_shared, len(lockers['lockers']))
cookies = sorted(map(lambda x: x[1], lockers['lockers']))
for i in range(num_shared):
eq(str(i), cookies[i])
self.image.unlock(str(i))
eq([], self.image.list_lockers())
def test_diff_iterate(self):
check_diff(self.image, 0, IMG_SIZE, None, [])
self.image.write(b'a' * 256, 0)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 256, True)])
self.image.write(b'b' * 256, 256)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 512, True)])
self.image.discard(128, 256)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 512, True)])
self.image.create_snap('snap1')
self.image.discard(0, 1 << IMG_ORDER)
self.image.create_snap('snap2')
self.image.set_snap('snap2')
check_diff(self.image, 0, IMG_SIZE, 'snap1', [(0, 512, False)])
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
def test_aio_read(self):
# this is a list so that the local cb() can modify it
retval = [None]
def cb(_, buf):
retval[0] = buf
# test1: success case
comp = self.image.aio_read(0, 20, cb)
comp.wait_for_complete_and_cb()
eq(retval[0], b'\0' * 20)
eq(comp.get_return_value(), 20)
eq(sys.getrefcount(comp), 2)
# test2: error case
retval[0] = 1
comp = self.image.aio_read(IMG_SIZE, 20, cb)
comp.wait_for_complete_and_cb()
eq(None, retval[0])
assert(comp.get_return_value() < 0)
eq(sys.getrefcount(comp), 2)
def test_aio_write(self):
retval = [None]
def cb(comp):
retval[0] = comp.get_return_value()
data = rand_data(256)
comp = self.image.aio_write(data, 256, cb)
comp.wait_for_complete_and_cb()
eq(retval[0], 0)
eq(comp.get_return_value(), 0)
eq(sys.getrefcount(comp), 2)
eq(self.image.read(256, 256), data)
def test_aio_discard(self):
retval = [None]
def cb(comp):
retval[0] = comp.get_return_value()
data = rand_data(256)
self.image.write(data, 0)
comp = self.image.aio_discard(0, 256, cb)
comp.wait_for_complete_and_cb()
eq(retval[0], 0)
eq(comp.get_return_value(), 0)
eq(sys.getrefcount(comp), 2)
eq(self.image.read(256, 256), b'\0' * 256)
def test_aio_flush(self):
retval = [None]
def cb(comp):
retval[0] = comp.get_return_value()
comp = self.image.aio_flush(cb)
comp.wait_for_complete_and_cb()
eq(retval[0], 0)
eq(sys.getrefcount(comp), 2)