Merge "Ensure to switch to unprotected context if display is not secure." am: 048f1e93fd
Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1533792
MUST ONLY BE SUBMITTED BY AUTOMERGER
Change-Id: I45bad1f9ab8a88fb9d3790e5e8d73d1bdaac24c6
diff --git a/libs/binder/LazyServiceRegistrar.cpp b/libs/binder/LazyServiceRegistrar.cpp
index 325e204..f2c5139 100644
--- a/libs/binder/LazyServiceRegistrar.cpp
+++ b/libs/binder/LazyServiceRegistrar.cpp
@@ -29,53 +29,59 @@
using AidlServiceManager = android::os::IServiceManager;
-class ClientCounterCallback : public ::android::os::BnClientCallback {
+class ClientCounterCallbackImpl : public ::android::os::BnClientCallback {
public:
- ClientCounterCallback() : mNumConnectedServices(0), mForcePersist(false) {}
+ ClientCounterCallbackImpl() : mNumConnectedServices(0), mForcePersist(false) {}
bool registerService(const sp<IBinder>& service, const std::string& name,
bool allowIsolated, int dumpFlags);
-
- /**
- * Set a flag to prevent services from automatically shutting down
- */
void forcePersist(bool persist);
protected:
Status onClients(const sp<IBinder>& service, bool clients) override;
private:
- struct Service {
- sp<IBinder> service;
- bool allowIsolated;
- int dumpFlags;
-
- // whether, based on onClients calls, we know we have a client for this
- // service or not
- bool clients = false;
- };
-
- /**
- * Looks up a service guaranteed to be registered (service from onClients).
- */
- std::map<std::string, Service>::iterator assertRegisteredService(const sp<IBinder>& service);
-
/**
* Unregisters all services that we can. If we can't unregister all, re-register other
* services.
*/
void tryShutdown();
- // count of services with clients
+ /**
+ * Counter of the number of services that currently have at least one client.
+ */
size_t mNumConnectedServices;
- // map of registered names and services
+ struct Service {
+ sp<IBinder> service;
+ bool allowIsolated;
+ int dumpFlags;
+ };
+ /**
+ * Map of registered names and services
+ */
std::map<std::string, Service> mRegisteredServices;
bool mForcePersist;
};
-bool ClientCounterCallback::registerService(const sp<IBinder>& service, const std::string& name,
+class ClientCounterCallback {
+public:
+ ClientCounterCallback();
+
+ bool registerService(const sp<IBinder>& service, const std::string& name,
+ bool allowIsolated, int dumpFlags);
+
+ /**
+ * Set a flag to prevent services from automatically shutting down
+ */
+ void forcePersist(bool persist);
+
+private:
+ sp<ClientCounterCallbackImpl> mImpl;
+};
+
+bool ClientCounterCallbackImpl::registerService(const sp<IBinder>& service, const std::string& name,
bool allowIsolated, int dumpFlags) {
auto manager = interface_cast<AidlServiceManager>(asBinder(defaultServiceManager()));
@@ -95,29 +101,13 @@
}
// Only add this when a service is added for the first time, as it is not removed
- mRegisteredServices[name] = {
- .service = service,
- .allowIsolated = allowIsolated,
- .dumpFlags = dumpFlags
- };
+ mRegisteredServices[name] = {service, allowIsolated, dumpFlags};
}
return true;
}
-std::map<std::string, ClientCounterCallback::Service>::iterator ClientCounterCallback::assertRegisteredService(const sp<IBinder>& service) {
- LOG_ALWAYS_FATAL_IF(service == nullptr, "Got onClients callback for null service");
- for (auto it = mRegisteredServices.begin(); it != mRegisteredServices.end(); ++it) {
- auto const& [name, registered] = *it;
- (void) name;
- if (registered.service != service) continue;
- return it;
- }
- LOG_ALWAYS_FATAL("Got callback on service which we did not register: %s", String8(service->getInterfaceDescriptor()).c_str());
- __builtin_unreachable();
-}
-
-void ClientCounterCallback::forcePersist(bool persist) {
+void ClientCounterCallbackImpl::forcePersist(bool persist) {
mForcePersist = persist;
if(!mForcePersist) {
// Attempt a shutdown in case the number of clients hit 0 while the flag was on
@@ -129,32 +119,22 @@
* onClients is oneway, so no need to worry about multi-threading. Note that this means multiple
* invocations could occur on different threads however.
*/
-Status ClientCounterCallback::onClients(const sp<IBinder>& service, bool clients) {
- auto & [name, registered] = *assertRegisteredService(service);
- if (registered.clients == clients) {
- LOG_ALWAYS_FATAL("Process already thought %s had clients: %d but servicemanager has "
- "notified has clients: %d", name.c_str(), registered.clients, clients);
- }
- registered.clients = clients;
-
- // update cache count of clients
- {
- size_t numWithClients = 0;
- for (const auto& [name, registered] : mRegisteredServices) {
- (void) name;
- if (registered.clients) numWithClients++;
- }
- mNumConnectedServices = numWithClients;
+Status ClientCounterCallbackImpl::onClients(const sp<IBinder>& service, bool clients) {
+ if (clients) {
+ mNumConnectedServices++;
+ } else {
+ mNumConnectedServices--;
}
ALOGI("Process has %zu (of %zu available) client(s) in use after notification %s has clients: %d",
- mNumConnectedServices, mRegisteredServices.size(), name.c_str(), clients);
+ mNumConnectedServices, mRegisteredServices.size(),
+ String8(service->getInterfaceDescriptor()).string(), clients);
tryShutdown();
return Status::ok();
}
-void ClientCounterCallback::tryShutdown() {
+void ClientCounterCallbackImpl::tryShutdown() {
if(mNumConnectedServices > 0) {
// Should only shut down if there are no clients
return;
@@ -175,7 +155,6 @@
bool success = manager->tryUnregisterService(entry.first, entry.second.service).isOk();
-
if (!success) {
ALOGI("Failed to unregister service %s", entry.first.c_str());
break;
@@ -200,6 +179,19 @@
}
}
+ClientCounterCallback::ClientCounterCallback() {
+ mImpl = new ClientCounterCallbackImpl();
+}
+
+bool ClientCounterCallback::registerService(const sp<IBinder>& service, const std::string& name,
+ bool allowIsolated, int dumpFlags) {
+ return mImpl->registerService(service, name, allowIsolated, dumpFlags);
+}
+
+void ClientCounterCallback::forcePersist(bool persist) {
+ mImpl->forcePersist(persist);
+}
+
} // namespace internal
LazyServiceRegistrar::LazyServiceRegistrar() {
@@ -224,4 +216,4 @@
}
} // namespace hardware
-} // namespace android
+} // namespace android
\ No newline at end of file