Merge "Camera: Fix double-free in removeCamera" into rvc-qpr-dev
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/GeneratorHub.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/GeneratorHub.cpp
index 548285a..9be9ea7 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/GeneratorHub.cpp
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/GeneratorHub.cpp
@@ -31,6 +31,14 @@
GeneratorHub::GeneratorHub(const OnHalEvent& onHalEvent)
: mOnHalEvent(onHalEvent), mThread(&GeneratorHub::run, this) {}
+GeneratorHub::~GeneratorHub() {
+ mShuttingDownFlag.store(true);
+ mCond.notify_all();
+ if (mThread.joinable()) {
+ mThread.join();
+ }
+}
+
void GeneratorHub::registerGenerator(int32_t cookie, FakeValueGeneratorPtr generator) {
{
std::lock_guard<std::mutex> g(mLock);
@@ -58,15 +66,18 @@
}
void GeneratorHub::run() {
- while (true) {
+ while (!mShuttingDownFlag.load()) {
std::unique_lock<std::mutex> g(mLock);
// Pop events whose generator does not exist (may be already unregistered)
while (!mEventQueue.empty()
&& mGenerators.find(mEventQueue.top().cookie) == mGenerators.end()) {
mEventQueue.pop();
}
- // Wait until event queue is not empty
- mCond.wait(g, [this] { return !mEventQueue.empty(); });
+ // Wait until event queue is not empty or shutting down flag is set
+ mCond.wait(g, [this] { return !mEventQueue.empty() || mShuttingDownFlag.load(); });
+ if (mShuttingDownFlag.load()) {
+ break;
+ }
const VhalEvent& curEvent = mEventQueue.top();
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/GeneratorHub.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/GeneratorHub.h
index dcf6a4f..b25dbf1 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/GeneratorHub.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/GeneratorHub.h
@@ -58,7 +58,7 @@
public:
GeneratorHub(const OnHalEvent& onHalEvent);
- ~GeneratorHub() = default;
+ ~GeneratorHub();
/**
* Register a new generator. The generator will be discarded if it could not produce next event.
@@ -84,6 +84,7 @@
mutable std::mutex mLock;
std::condition_variable mCond;
std::thread mThread;
+ std::atomic<bool> mShuttingDownFlag{false};
};
} // namespace impl