1 files changed, 63 insertions, 0 deletions
diff --git a/src/core/lib/iomgr/iomgr_custom.cc b/src/core/lib/iomgr/iomgr_custom.cc
new file mode 100644
index 0000000000..d34c8e7cd1
--- /dev/null
+++ b/src/core/lib/iomgr/iomgr_custom.cc
@@ -0,0 +1,63 @@
+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/lib/iomgr/port.h"
+
+#include <grpc/support/thd_id.h>
+
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/executor.h"
+#include "src/core/lib/iomgr/iomgr_custom.h"
+#include "src/core/lib/iomgr/iomgr_internal.h"
+#include "src/core/lib/iomgr/pollset_custom.h"
+#include "src/core/lib/iomgr/pollset_set_custom.h"
+#include "src/core/lib/iomgr/resolve_address_custom.h"
+
+gpr_thd_id g_init_thread;
+
+static void iomgr_platform_init(void) {
+  grpc_core::ExecCtx exec_ctx;
+  grpc_executor_set_threading(false);
+  g_init_thread = gpr_thd_currentid();
+  grpc_pollset_global_init();
+}
+static void iomgr_platform_flush(void) {}
+static void iomgr_platform_shutdown(void) { grpc_pollset_global_shutdown(); }
+
+static grpc_iomgr_platform_vtable vtable = {
+    iomgr_platform_init, iomgr_platform_flush, iomgr_platform_shutdown};
+
+void grpc_custom_iomgr_init(grpc_socket_vtable* socket,
+                            grpc_custom_resolver_vtable* resolver,
+                            grpc_custom_timer_vtable* timer,
+                            grpc_custom_poller_vtable* poller) {
+  grpc_custom_endpoint_init(socket);
+  grpc_custom_timer_init(timer);
+  grpc_custom_pollset_init(poller);
+  grpc_custom_pollset_set_init();
+  grpc_custom_resolver_init(resolver);
+  grpc_set_iomgr_platform_vtable(&vtable);
+}
+
+#ifdef GRPC_CUSTOM_SOCKET
+grpc_iomgr_platform_vtable* grpc_default_iomgr_platform_vtable() {
+  return &vtable;
+}
+#endif