[Xen-devel] how does variable num define for errno in libxc

[tgh <tianguanhua@xxxxxxxxxx>]

hi
i try to modify code of xc_domain_save.c
and there is error, comes out from ERROR("Error when writing to state
file (5)" " (errno %d)", errno);
i am confused about where is the errno defined ,and what does variable
num mean? say errno=104 or errno=26 or some else

Thanks



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