--- /dev/null
+/*
+ *
+ * Copyright 2015 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.
+ *
+ */
+
+#ifndef GRPC_CORE_LIB_IOMGR_IOMGR_INTERNAL_H
+#define GRPC_CORE_LIB_IOMGR_IOMGR_INTERNAL_H
+
+#include <grpc/support/port_platform.h>
+
+#include <stdbool.h>
+
+#include "src/core/lib/iomgr/iomgr.h"
+
+typedef struct grpc_iomgr_object {
+ char* name;
+ struct grpc_iomgr_object* next;
+ struct grpc_iomgr_object* prev;
+} grpc_iomgr_object;
+
+typedef struct grpc_iomgr_platform_vtable {
+ void (*init)(void);
+ void (*flush)(void);
+ void (*shutdown)(void);
+ void (*shutdown_background_closure)(void);
+ bool (*is_any_background_poller_thread)(void);
+ bool (*add_closure_to_background_poller)(grpc_closure* closure,
+ grpc_error* error);
+} grpc_iomgr_platform_vtable;
+
+void grpc_iomgr_register_object(grpc_iomgr_object* obj, const char* name);
+void grpc_iomgr_unregister_object(grpc_iomgr_object* obj);
+
+void grpc_determine_iomgr_platform();
+
+void grpc_set_iomgr_platform_vtable(grpc_iomgr_platform_vtable* vtable);
+
+void grpc_set_default_iomgr_platform();
+
+void grpc_iomgr_platform_init(void);
+/** flush any globally queued work from iomgr */
+void grpc_iomgr_platform_flush(void);
+/** tear down all platform specific global iomgr structures */
+void grpc_iomgr_platform_shutdown(void);
+
+/** shut down all the closures registered in the background poller */
+void grpc_iomgr_platform_shutdown_background_closure(void);
+
+/** return true if the caller is a worker thread for any background poller */
+bool grpc_iomgr_platform_is_any_background_poller_thread(void);
+
+/** Return true if the closure is registered into the background poller. Note
+ * that the closure may or may not run yet when this function returns, and the
+ * closure should not be blocking or long-running. */
+bool grpc_iomgr_platform_add_closure_to_background_poller(grpc_closure* closure,
+ grpc_error* error);
+
+bool grpc_iomgr_abort_on_leaks(void);
+
+#endif /* GRPC_CORE_LIB_IOMGR_IOMGR_INTERNAL_H */