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Astobj2: Add ao2_weakproxy_ref_object function.
This function allows code to run ao2_ref against the real object associated with a weakproxy. It is useful when all of the following conditions are true: * You have a pointer to weakproxy. * You do not have or need a pointer to the real object. * You need to ensure the real object exists and is not destroyed during a process. In this case it's wasteful to store a pointer to the real object just for the sake of releasing it later. Change-Id: I38a319b83314de75be74207a8771aab269bcca46
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@@ -836,6 +836,33 @@ int __ao2_weakproxy_set_object(void *weakproxy, void *obj, int flags,
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return ret;
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}
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int __ao2_weakproxy_ref_object(void *weakproxy, int delta, int flags,
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const char *tag, const char *file, int line, const char *func)
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{
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struct astobj2 *internal = __INTERNAL_OBJ_CHECK(weakproxy, file, line, func);
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int ret = -1;
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if (!internal || internal->priv_data.magic != AO2_WEAK) {
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/* This method is meant to be run on weakproxy objects! */
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return -2;
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}
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/* We have a weak object, grab lock. */
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if (!(flags & OBJ_NOLOCK)) {
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ao2_lock(weakproxy);
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}
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if (internal->priv_data.weakptr) {
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ret = __ao2_ref(internal->priv_data.weakptr, delta, tag, file, line, func);
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}
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if (!(flags & OBJ_NOLOCK)) {
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ao2_unlock(weakproxy);
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}
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return ret;
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}
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void *__ao2_weakproxy_get_object(void *weakproxy, int flags,
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const char *tag, const char *file, int line, const char *func)
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{
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