1 files changed, 21 insertions, 3 deletions
diff --git a/test/cpp/qps/qps_worker.cc b/test/cpp/qps/qps_worker.cc
index 7e9e05f7ec..9442017ddf 100644
--- a/test/cpp/qps/qps_worker.cc
+++ b/test/cpp/qps/qps_worker.cc
@@ -103,8 +103,8 @@ static std::unique_ptr<Server> CreateServer(const ServerConfig& config) {
 
 class WorkerServiceImpl GRPC_FINAL : public WorkerService::Service {
  public:
-  explicit WorkerServiceImpl(int server_port)
-      : acquired_(false), server_port_(server_port) {}
+  WorkerServiceImpl(int server_port, QpsWorker* worker)
+      : acquired_(false), server_port_(server_port), worker_(worker) {}
 
   Status RunClient(ServerContext* ctx,
                    ServerReaderWriter<ClientStatus, ClientArgs>* stream)
@@ -140,6 +140,16 @@ class WorkerServiceImpl GRPC_FINAL : public WorkerService::Service {
     return Status::OK;
   }
 
+  Status QuitWorker(ServerContext* ctx, const Void*, Void*) GRPC_OVERRIDE {
+    InstanceGuard g(this);
+    if (!g.Acquired()) {
+      return Status(StatusCode::RESOURCE_EXHAUSTED, "");
+    }
+
+    worker_->MarkDone();
+    return Status::OK;
+  }
+
  private:
   // Protect against multiple clients using this worker at once.
   class InstanceGuard {
@@ -250,10 +260,12 @@ class WorkerServiceImpl GRPC_FINAL : public WorkerService::Service {
   std::mutex mu_;
   bool acquired_;
   int server_port_;
+  QpsWorker* worker_;
 };
 
 QpsWorker::QpsWorker(int driver_port, int server_port) {
-  impl_.reset(new WorkerServiceImpl(server_port));
+  impl_.reset(new WorkerServiceImpl(server_port, this));
+  gpr_atm_rel_store(&done_, static_cast<gpr_atm>(0));
 
   char* server_address = NULL;
   gpr_join_host_port(&server_address, "::", driver_port);
@@ -269,5 +281,11 @@ QpsWorker::QpsWorker(int driver_port, int server_port) {
 
 QpsWorker::~QpsWorker() {}
 
+bool QpsWorker::Done() const {
+  return (gpr_atm_acq_load(&done_) != static_cast<gpr_atm>(0));
+}
+void QpsWorker::MarkDone() {
+  gpr_atm_rel_store(&done_, static_cast<gpr_atm>(1));
+}
 }  // namespace testing
 }  // namespace grpc