Re: [libvirt] [PATCH] Add helpers for dealing with system errors

From: "Daniel P. Berrange" <berrange(a)redhat.com&gt; Add virErrorSetErrnoFromLastError and virLastErrorIsSystemErrno to simplify code which wants to handle system errors in a more graceful fashion. Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com&gt; --- src/libvirt_private.syms | 1 + src/util/virerror.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ src/util/virerror.h | 4 ++++ 3 files changed, 53 insertions(+) diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 5d39d50..a2b61c7 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -1318,6 +1318,7 @@ ebtablesRemoveForwardAllowIn; # util/virerror.h virDispatchError; virErrorInitialize; +virLastErrorIsSystemErrno; virRaiseErrorFull; virReportErrorHelper; virReportOOMErrorFull;

+ +/** + * virLastErrorIsSystemErrno: + * @errnum: the errno value + * + * Check if the last error reported is a system + * error with the specific errno value. + * + * If @errnum is zero, any system error will pass. + * + * Returns true if the last errr was a system error with errno == @errnum