Re: [libvirt] [PATCH 5/7] util: alloc: Introduce 'VIR_AUTOCLEAN' macros for clearing stack'd structs
On 2/21/19 9:50 AM, Peter Krempa wrote:
The new utility macros are useful for variables we put on the stack
but
require some cleanup. The most prominent of those is virBuffer which is
used almost exclusively in that way.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/util/viralloc.h | 32 +++++++++++++++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)
+/**
+ * VIR_AUTOCLEAN:
+ * @type: type of the variable to be cleared
To match what VIR_AUTOUNREF does, should this state:
to be clean'd automatically
+ *
+ * Macro to automatically calls destructor of @type variable declared directly
s/calls/call/
Is it actually a destructor, or just a cleanup function?
+ * when the variable goes out of scope.
+ * The destructor is defined by VIR_DEFINE_AUTOCLEAN_FUNC macro for the given
+ * type.
+ */
+# define VIR_AUTOCLEAN(type) \
+ __attribute__((cleanup(VIR_AUTOCLEAN_FUNC_NAME(type)))) type
+
+
/**
* VIR_AUTOUNREF:
* @type: type of an virObject subclass to be unref'd automatically
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org