[Libvir] What is the Difference Between virConnCopyLastError and virCopyLastError?

[ajishrao]

Hi,
         I am little confused about these api's such as
virConnCopyLastError and virCopyLastError. Please correct my
understanding.

1. virConnCopyLastError expects 2 parameter connection and virErrorPtr,
This is used only after getting successful connection, If i call this
without connection say it is NULL, I hope it will return -1 if no what
will it return?

2. virCopyLastError expects on 1 parameter virErrorPtr, this can be used
any time, even before getting connection, If it is No. Then when will i
use virCopyLastError api?


3. If virConnectOpen/virConnectOpenReadOnly fails which api should be
called to know the error code?


Thanks & Regards
--Ajish
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