46 lines
863 B
Python
46 lines
863 B
Python
#!/usr/bin/python2.4
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#
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"""Example 1 in Python
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"""
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import stasis
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import sys
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import array
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def runit(argv):
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print "init"
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stasis.Tinit()
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# First transaction, for writing
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print "begin & alloc"
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xid = stasis.Tbegin();
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record_id = stasis.Talloc(xid, 4);
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print "update"
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write_data = array.array('i', (42,))
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data_out = write_data.tostring()
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assert len(data_out) == 4
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stasis.TupdateStr(xid, record_id, data_out, stasis.OPERATION_SET)
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stasis.Tcommit(xid)
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# Second transaction, for reading
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print "read"
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xid = stasis.Tbegin()
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# Read from Stasis into memory for data_in
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data_in = '1234'
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stasis.TreadStr(xid, record_id, data_in)
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read_data = array.array('i', data_in)
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assert read_data[0] == 42
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print "done"
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stasis.Tdealloc(xid, record_id)
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stasis.Tabort(xid)
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stasis.Tdeinit()
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if __name__ == "__main__":
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runit(sys.argv)
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