mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2025-01-24 21:45:21 +00:00
17e19adde2
There are cases when we want log an error message, and possibly free some memory as part of the cleanup, while still preserving errno for a caller, but the functions that log errors, and virFree (VIR_FREE) make system calls that will clear errno. This patch preserves errno during those most basic functions (corresponding to virReportSystemError(), virReportOOMError(), networkReportError(), etc, as well as virStrError()). It does *not preserve errno across calls to higher level items such as virDispatchError(), as it's assumed the caller is all finished with any need for errno by the time it dispatches the error.
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>