diff options
Diffstat (limited to 'libs/binder/RpcState.cpp')
-rw-r--r-- | libs/binder/RpcState.cpp | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/libs/binder/RpcState.cpp b/libs/binder/RpcState.cpp index 2f6b1b3ac4..e18179e4a8 100644 --- a/libs/binder/RpcState.cpp +++ b/libs/binder/RpcState.cpp @@ -61,6 +61,7 @@ status_t RpcState::onBinderLeaving(const sp<RpcSession>& session, const sp<IBind } std::lock_guard<std::mutex> _l(mNodeMutex); + if (mTerminated) return DEAD_OBJECT; // TODO(b/182939933): maybe move address out of BpBinder, and keep binder->address map // in RpcState @@ -95,11 +96,13 @@ status_t RpcState::onBinderLeaving(const sp<RpcSession>& session, const sp<IBind return OK; } -sp<IBinder> RpcState::onBinderEntering(const sp<RpcSession>& session, const RpcAddress& address) { +status_t RpcState::onBinderEntering(const sp<RpcSession>& session, const RpcAddress& address, + sp<IBinder>* out) { std::unique_lock<std::mutex> _l(mNodeMutex); + if (mTerminated) return DEAD_OBJECT; if (auto it = mNodeForAddress.find(address); it != mNodeForAddress.end()) { - sp<IBinder> binder = it->second.binder.promote(); + *out = it->second.binder.promote(); // implicitly have strong RPC refcount, since we received this binder it->second.timesRecd++; @@ -111,7 +114,7 @@ sp<IBinder> RpcState::onBinderEntering(const sp<RpcSession>& session, const RpcA // immediately, we wait to send the last one in BpBinder::onLastDecStrong. (void)session->sendDecStrong(address); - return binder; + return OK; } auto&& [it, inserted] = mNodeForAddress.insert({address, BinderNode{}}); @@ -119,10 +122,9 @@ sp<IBinder> RpcState::onBinderEntering(const sp<RpcSession>& session, const RpcA // Currently, all binders are assumed to be part of the same session (no // device global binders in the RPC world). - sp<IBinder> binder = BpBinder::create(session, it->first); - it->second.binder = binder; + it->second.binder = *out = BpBinder::create(session, it->first); it->second.timesRecd = 1; - return binder; + return OK; } size_t RpcState::countBinders() { @@ -556,12 +558,14 @@ status_t RpcState::processTransactInternal(const base::unique_fd& fd, const sp<R sp<IBinder> target; if (!addr.isZero()) { if (!targetRef) { - target = onBinderEntering(session, addr); + replyStatus = onBinderEntering(session, addr, &target); } else { target = targetRef; } - if (target == nullptr) { + if (replyStatus != OK) { + // do nothing + } else if (target == nullptr) { // This can happen if the binder is remote in this process, and // another thread has called the last decStrong on this binder. // However, for local binders, it indicates a misbehaving client |