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"""
Read scattered data chunks in one operation
-------------------------------------------
Produces the following output::
<buffer: 'The XROOTD project aims at giving high p', length: 40, offset: 0>
<buffer: 'erformance, scalable fault tolerant acc', length: 40, offset: 40>
<buffer: 'ess to data repositories of many kinds', length: 38, offset: 80>
"""
from XRootD import client
from XRootD.client.flags import OpenFlags
with client.File() as f:
print f.open('root://localhost//tmp/eggs', OpenFlags.UPDATE)
f.write(r'The XROOTD project aims at giving high performance, scalable '
+' fault tolerant access to data repositories of many kinds')
size = f.stat()[1].size
v = [(0, 40), (40, 40), (80, size - 80)]
status, response = f.vector_read(chunks=v)
print status
for chunk in response.chunks:
print chunk
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