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eo: let's make weak ref safer to manipulate. 

SVN revision: 81899
This commit is contained in:
Cedric BAIL 2012-12-30 12:26:25 +00:00
parent 33791572fc
commit 35a5c733ff
1 changed files with 37 additions and 5 deletions
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42
src/lib/eo/Eo.h
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@ -961,20 +961,52 @@ enum {
*/
#define eo_wref_del(wref) EO_BASE_ID(EO_BASE_SUB_ID_WREF_DEL), EO_TYPECHECK(Eo **, wref)
/**
* @def eo_weak_ref
* @brief Reference a pointer to an Eo object
* @param wref the pointer to use for the weak ref
*
* Same as eo_wref_add() with the difference that it call eo_do() itself. Checking
* for *wref NULL and making sure that you pass the right pointer to both side of
* eo_do().
*
* @see eo_weak_unref
* @see eo_wref_add
*/
#define eo_weak_ref(wref) \
do { \
if (*wref) eo_do(*wref, eo_wref_add(wref)); \
} while (0);
/**
* @def eo_weak_unref
* @brief Unreference a pointer to an Eo object
* @param wref the pointer to use for the weak unref
*
* Same as eo_wref_del() with the difference that it call eo_do() itself. Checking
* for *wref NULL and making sure that you pass the right pointer to both side of
* eo_do().
*
* @see eo_weak_ref
* @see eo_wref_del
* @see eo_wref_del_safe
*/
#define eo_weak_unref(wref) \
do { \
if (*wref) eo_do(*wref, eo_wref_del(wref)); \
} while (0);
/**
* @def eo_wref_del_safe
* @brief Delete the weak reference passed.
* @param wref the weak reference to free.
*
* Same as eo_wref_del(), with the different that it's not called from eobj_do()
* Same as eo_wref_del(), with the different that it's not called from eo_do()
* so you don't need to check if *wref is not NULL.
*
* @see #eo_wref_del
*/
#define eo_wref_del_safe(wref) \
do { \
if (*wref) eo_do(*wref, eo_wref_del(wref)); \
} while (0)
#define eo_wref_del_safe(wref) eo_weak_unref(wref)
/**
* @def eo_constructor