Merge github.com:grpc/grpc into propagate

include/grpc++/server_context.h

@@ -125,6 +125,14 @@ class ServerContext {
 
   const struct census_context* census_context() const;
 
+  // Async only. Has to be called before the rpc starts.
+  // Returns the tag in completion queue when the rpc finishes.
+  // IsCancelled() can then be called to check whether the rpc was cancelled.
+  void AsyncNotifyWhenDone(void* tag) {
+    has_notify_when_done_tag_ = true;
+    async_notify_when_done_tag_ = tag;
+  }
+
  private:
   friend class ::grpc::testing::InteropContextInspector;
   friend class ::grpc::Server;
@@ -165,6 +173,8 @@ class ServerContext {
   void set_call(grpc_call* call);
 
   CompletionOp* completion_op_;
+  bool has_notify_when_done_tag_;
+  void* async_notify_when_done_tag_;
 
   gpr_timespec deadline_;
   grpc_call* call_;

include/grpc/grpc.h

@@ -589,7 +589,7 @@ void grpc_server_register_completion_queue(grpc_server *server,
 /** Add a HTTP2 over plaintext over tcp listener.
     Returns bound port number on success, 0 on failure.
     REQUIRES: server not started */
-int grpc_server_add_http2_port(grpc_server *server, const char *addr);
+int grpc_server_add_insecure_http2_port(grpc_server *server, const char *addr);
 
 /** Start a server - tells all listeners to start listening */
 void grpc_server_start(grpc_server *server);

src/core/surface/server_chttp2.c

@@ -80,7 +80,7 @@ static void destroy(grpc_server *server, void *tcpp) {
   grpc_tcp_server_destroy(tcp, grpc_server_listener_destroy_done, server);
 }
 
-int grpc_server_add_http2_port(grpc_server *server, const char *addr) {
+int grpc_server_add_insecure_http2_port(grpc_server *server, const char *addr) {
   grpc_resolved_addresses *resolved = NULL;
   grpc_tcp_server *tcp = NULL;
   size_t i;

src/cpp/server/insecure_server_credentials.cc

@@ -41,7 +41,7 @@ class InsecureServerCredentialsImpl GRPC_FINAL : public ServerCredentials {
  public:
   int AddPortToServer(const grpc::string& addr,
                       grpc_server* server) GRPC_OVERRIDE {
-    return grpc_server_add_http2_port(server, addr.c_str());
+    return grpc_server_add_insecure_http2_port(server, addr.c_str());
   }
 };
 }  // namespace

src/cpp/server/server_context.cc

@@ -50,16 +50,23 @@ namespace grpc {
 class ServerContext::CompletionOp GRPC_FINAL : public CallOpSetInterface {
  public:
   // initial refs: one in the server context, one in the cq
-  CompletionOp() : refs_(2), finalized_(false), cancelled_(0) {}
+  CompletionOp() : has_tag_(false), tag_(nullptr), refs_(2), finalized_(false), cancelled_(0) {}
 
   void FillOps(grpc_op* ops, size_t* nops) GRPC_OVERRIDE;
   bool FinalizeResult(void** tag, bool* status) GRPC_OVERRIDE;
 
   bool CheckCancelled(CompletionQueue* cq);
 
+  void set_tag(void* tag) {
+    has_tag_ = true;
+    tag_ = tag;
+  }
+
   void Unref();
 
  private:
+  bool has_tag_;
+  void* tag_;
   grpc::mutex mu_;
   int refs_;
   bool finalized_;
@@ -90,18 +97,25 @@ void ServerContext::CompletionOp::FillOps(grpc_op* ops, size_t* nops) {
 bool ServerContext::CompletionOp::FinalizeResult(void** tag, bool* status) {
   grpc::unique_lock<grpc::mutex> lock(mu_);
   finalized_ = true;
+  bool ret = false;
+  if (has_tag_) {
+    *tag = tag_;
+    ret = true;
+  }
   if (!*status) cancelled_ = 1;
   if (--refs_ == 0) {
     lock.unlock();
     delete this;
   }
-  return false;
+  return ret;
 }
 
 // ServerContext body
 
 ServerContext::ServerContext()
     : completion_op_(nullptr),
+      has_notify_when_done_tag_(false),
+      async_notify_when_done_tag_(nullptr),
       call_(nullptr),
       cq_(nullptr),
       sent_initial_metadata_(false) {}
@@ -109,6 +123,8 @@ ServerContext::ServerContext()
 ServerContext::ServerContext(gpr_timespec deadline, grpc_metadata* metadata,
                              size_t metadata_count)
     : completion_op_(nullptr),
+      has_notify_when_done_tag_(false),
+      async_notify_when_done_tag_(nullptr),
       deadline_(deadline),
       call_(nullptr),
       cq_(nullptr),
@@ -133,6 +149,9 @@ ServerContext::~ServerContext() {
 void ServerContext::BeginCompletionOp(Call* call) {
   GPR_ASSERT(!completion_op_);
   completion_op_ = new CompletionOp();
+  if (has_notify_when_done_tag_) {
+    completion_op_->set_tag(async_notify_when_done_tag_);
+  }
   call->PerformOps(completion_op_);
 }
 

src/csharp/ext/grpc_csharp_ext.c

@@ -732,7 +732,7 @@ grpcsharp_server_create(grpc_completion_queue *cq,
 
 GPR_EXPORT gpr_int32 GPR_CALLTYPE
 grpcsharp_server_add_insecure_http2_port(grpc_server *server, const char *addr) {
-  return grpc_server_add_http2_port(server, addr);
+  return grpc_server_add_insecure_http2_port(server, addr);
 }
 
 GPR_EXPORT void GPR_CALLTYPE grpcsharp_server_start(grpc_server *server) {

src/node/ext/server.cc

@@ -265,7 +265,7 @@ NAN_METHOD(Server::AddHttp2Port) {
   grpc_server_credentials *creds = creds_object->GetWrappedServerCredentials();
   int port;
   if (creds == NULL) {
-    port = grpc_server_add_http2_port(server->wrapped_server,
+    port = grpc_server_add_insecure_http2_port(server->wrapped_server,
                                                *NanUtf8String(args[0]));
   } else {
     port = grpc_server_add_secure_http2_port(server->wrapped_server,

src/php/ext/grpc/server.c

@@ -182,7 +182,7 @@ PHP_METHOD(Server, addHttp2Port) {
                          "add_http2_port expects a string", 1 TSRMLS_CC);
     return;
   }
-  RETURN_LONG(grpc_server_add_http2_port(server->wrapped, addr));
+  RETURN_LONG(grpc_server_add_insecure_http2_port(server->wrapped, addr));
 }
 
 PHP_METHOD(Server, addSecureHttp2Port) {

src/python/grpcio/grpc/_adapter/_c/types/server.c

@@ -155,7 +155,7 @@ PyObject *pygrpc_Server_add_http2_port(
     port = grpc_server_add_secure_http2_port(
         self->c_serv, addr, creds->c_creds);
   } else {
-    port = grpc_server_add_http2_port(self->c_serv, addr);
+    port = grpc_server_add_insecure_http2_port(self->c_serv, addr);
   }
   return PyInt_FromLong(port);
 

src/ruby/ext/grpc/rb_server.c

@@ -357,7 +357,8 @@ static VALUE grpc_rb_server_add_http2_port(int argc, VALUE *argv, VALUE self) {
     rb_raise(rb_eRuntimeError, "destroyed!");
     return Qnil;
   } else if (rb_creds == Qnil) {
-    recvd_port = grpc_server_add_http2_port(s->wrapped, StringValueCStr(port));
+    recvd_port =
+        grpc_server_add_insecure_http2_port(s->wrapped, StringValueCStr(port));
     if (recvd_port == 0) {
       rb_raise(rb_eRuntimeError,
                "could not add port %s to server, not sure why",

test/core/end2end/dualstack_socket_test.c

@@ -96,8 +96,8 @@ void test_connect(const char *server_host, const char *client_host, int port,
   cq = grpc_completion_queue_create();
   server = grpc_server_create(NULL);
   grpc_server_register_completion_queue(server, cq);
-  GPR_ASSERT((got_port = grpc_server_add_http2_port(server, server_hostport)) >
-             0);
+  GPR_ASSERT((got_port = grpc_server_add_insecure_http2_port(
+                  server, server_hostport)) > 0);
   if (port == 0) {
     port = got_port;
   } else {

test/core/end2end/fixtures/chttp2_fullstack.c

@@ -84,7 +84,7 @@ void chttp2_init_server_fullstack(grpc_end2end_test_fixture *f,
   }
   f->server = grpc_server_create(server_args);
   grpc_server_register_completion_queue(f->server, f->cq);
-  GPR_ASSERT(grpc_server_add_http2_port(f->server, ffd->localaddr));
+  GPR_ASSERT(grpc_server_add_insecure_http2_port(f->server, ffd->localaddr));
   grpc_server_start(f->server);
 }
 

test/core/end2end/fixtures/chttp2_fullstack_compression.c

@@ -99,7 +99,7 @@ void chttp2_init_server_fullstack_compression(grpc_end2end_test_fixture *f,
   }
   f->server = grpc_server_create(ffd->server_args_compression);
   grpc_server_register_completion_queue(f->server, f->cq);
-  GPR_ASSERT(grpc_server_add_http2_port(f->server, ffd->localaddr));
+  GPR_ASSERT(grpc_server_add_insecure_http2_port(f->server, ffd->localaddr));
   grpc_server_start(f->server);
 }
 

test/core/end2end/fixtures/chttp2_fullstack_uds_posix.c

@@ -89,7 +89,7 @@ void chttp2_init_server_fullstack(grpc_end2end_test_fixture *f,
   }
   f->server = grpc_server_create(server_args);
   grpc_server_register_completion_queue(f->server, f->cq);
-  GPR_ASSERT(grpc_server_add_http2_port(f->server, ffd->localaddr));
+  GPR_ASSERT(grpc_server_add_insecure_http2_port(f->server, ffd->localaddr));
   grpc_server_start(f->server);
 }
 

test/core/end2end/fixtures/chttp2_fullstack_uds_posix_with_poll.c

@@ -89,7 +89,7 @@ void chttp2_init_server_fullstack(grpc_end2end_test_fixture *f,
   }
   f->server = grpc_server_create(server_args);
   grpc_server_register_completion_queue(f->server, f->cq);
-  GPR_ASSERT(grpc_server_add_http2_port(f->server, ffd->localaddr));
+  GPR_ASSERT(grpc_server_add_insecure_http2_port(f->server, ffd->localaddr));
   grpc_server_start(f->server);
 }
 

test/core/end2end/fixtures/chttp2_fullstack_with_poll.c

@@ -83,7 +83,7 @@ void chttp2_init_server_fullstack(grpc_end2end_test_fixture *f,
   }
   f->server = grpc_server_create(server_args);
   grpc_server_register_completion_queue(f->server, f->cq);
-  GPR_ASSERT(grpc_server_add_http2_port(f->server, ffd->localaddr));
+  GPR_ASSERT(grpc_server_add_insecure_http2_port(f->server, ffd->localaddr));
   grpc_server_start(f->server);
 }
 

test/core/end2end/multiple_server_queues_test.c

@@ -45,7 +45,7 @@ int main(int argc, char **argv) {
   cq2 = grpc_completion_queue_create();
   server = grpc_server_create(NULL);
   grpc_server_register_completion_queue(server, cq1);
-  grpc_server_add_http2_port(server, "[::]:0");
+  grpc_server_add_insecure_http2_port(server, "[::]:0");
   grpc_server_register_completion_queue(server, cq2);
   grpc_server_start(server);
   grpc_server_shutdown_and_notify(server, cq2, NULL);

test/core/fling/server.c

@@ -216,7 +216,7 @@ int main(int argc, char **argv) {
     grpc_server_credentials_release(ssl_creds);
   } else {
     server = grpc_server_create(NULL);
-    GPR_ASSERT(grpc_server_add_http2_port(server, addr));
+    GPR_ASSERT(grpc_server_add_insecure_http2_port(server, addr));
   }
   grpc_server_register_completion_queue(server, cq);
   grpc_server_start(server);

test/cpp/end2end/async_end2end_test.cc

@@ -592,6 +592,80 @@ TEST_F(AsyncEnd2endTest, MetadataRpc) {
   EXPECT_EQ(meta6.second, server_trailing_metadata.find(meta6.first)->second);
   EXPECT_GE(server_trailing_metadata.size(), static_cast<size_t>(2));
 }
+
+// Server uses AsyncNotifyWhenDone API to check for cancellation
+TEST_F(AsyncEnd2endTest, ServerCheckCancellation) {
+  ResetStub();
+
+  EchoRequest send_request;
+  EchoRequest recv_request;
+  EchoResponse send_response;
+  EchoResponse recv_response;
+  Status recv_status;
+
+  ClientContext cli_ctx;
+  ServerContext srv_ctx;
+  grpc::ServerAsyncResponseWriter<EchoResponse> response_writer(&srv_ctx);
+
+  send_request.set_message("Hello");
+  std::unique_ptr<ClientAsyncResponseReader<EchoResponse> > response_reader(
+      stub_->AsyncEcho(&cli_ctx, send_request, cq_.get()));
+
+  srv_ctx.AsyncNotifyWhenDone(tag(5));
+  service_.RequestEcho(&srv_ctx, &recv_request, &response_writer, cq_.get(),
+                       cq_.get(), tag(2));
+
+  Verifier().Expect(2, true).Verify(cq_.get());
+  EXPECT_EQ(send_request.message(), recv_request.message());
+
+  cli_ctx.TryCancel();
+  Verifier().Expect(5, true).Verify(cq_.get());
+  EXPECT_TRUE(srv_ctx.IsCancelled());
+
+  response_reader->Finish(&recv_response, &recv_status, tag(4));
+  Verifier().Expect(4, false).Verify(cq_.get());
+
+  EXPECT_EQ(StatusCode::CANCELLED, recv_status.error_code());
+}
+
+// Server uses AsyncNotifyWhenDone API to check for normal finish
+TEST_F(AsyncEnd2endTest, ServerCheckDone) {
+  ResetStub();
+
+  EchoRequest send_request;
+  EchoRequest recv_request;
+  EchoResponse send_response;
+  EchoResponse recv_response;
+  Status recv_status;
+
+  ClientContext cli_ctx;
+  ServerContext srv_ctx;
+  grpc::ServerAsyncResponseWriter<EchoResponse> response_writer(&srv_ctx);
+
+  send_request.set_message("Hello");
+  std::unique_ptr<ClientAsyncResponseReader<EchoResponse> > response_reader(
+      stub_->AsyncEcho(&cli_ctx, send_request, cq_.get()));
+
+  srv_ctx.AsyncNotifyWhenDone(tag(5));
+  service_.RequestEcho(&srv_ctx, &recv_request, &response_writer, cq_.get(),
+                       cq_.get(), tag(2));
+
+  Verifier().Expect(2, true).Verify(cq_.get());
+  EXPECT_EQ(send_request.message(), recv_request.message());
+
+  send_response.set_message(recv_request.message());
+  response_writer.Finish(send_response, Status::OK, tag(3));
+  Verifier().Expect(3, true).Verify(cq_.get());
+  Verifier().Expect(5, true).Verify(cq_.get());
+  EXPECT_FALSE(srv_ctx.IsCancelled());
+
+  response_reader->Finish(&recv_response, &recv_status, tag(4));
+  Verifier().Expect(4, true).Verify(cq_.get());
+
+  EXPECT_EQ(send_response.message(), recv_response.message());
+  EXPECT_TRUE(recv_status.ok());
+}
+
 }  // namespace
 }  // namespace testing
 }  // namespace grpc