[PATCH v3 12/35] util: file: define cleanup function using VIR_DEFINE_AUTOPTR_FUNC

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Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope.

When a variable of type virFileWrapperFdPtr is declared using
VIR_AUTOPTR, the function virFileWrapperFdFree will be run
automatically on it when it goes out of scope.

Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@xxxxxxxxx>
---
 src/util/virfile.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/util/virfile.h b/src/util/virfile.h
index 6f1e802..b30a1d3 100644
--- a/src/util/virfile.h
+++ b/src/util/virfile.h
@@ -32,6 +32,7 @@
 # include "internal.h"
 # include "virbitmap.h"
 # include "virstoragefile.h"
+# include "viralloc.h"
 
 typedef enum {
     VIR_FILE_CLOSE_PRESERVE_ERRNO = 1 << 0,
@@ -367,4 +368,6 @@ int virFileInData(int fd,
                   int *inData,
                   long long *length);
 
+VIR_DEFINE_AUTOPTR_FUNC(virFileWrapperFd, virFileWrapperFdFree)
+
 #endif /* __VIR_FILE_H */
-- 
1.8.3.1

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