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Merge "setDefaultImpl aborts on a second call" am: 196feae688

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Change-Id: Ieea885b8da74402cb90fcd0ba391b63bc1dd4a4a
This commit is contained in:
Jooyung Han 2020-05-15 00:04:13 +00:00 committed by Automerger Merge Worker
commit 2804e79b5c
1 changed files with 7 additions and 1 deletions
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8
libs/binder/include/binder/IInterface.h
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@ -20,6 +20,8 @@
#include <binder/Binder.h>
#include <assert.h>
namespace android {
// ----------------------------------------------------------------------
@ -155,7 +157,11 @@ public: \
std::unique_ptr<I##INTERFACE> I##INTERFACE::default_impl; \
bool I##INTERFACE::setDefaultImpl(std::unique_ptr<I##INTERFACE> impl)\
{ \
if (!I##INTERFACE::default_impl && impl) { \
/* Only one user of this interface can use this function */ \
/* at a time. This is a heuristic to detect if two different */ \
/* users in the same process use this function. */ \
assert(!I##INTERFACE::default_impl); \
if (impl) { \
I##INTERFACE::default_impl = std::move(impl); \
return true; \
} \