1 files changed, 43 insertions, 0 deletions
diff --git a/src/core/lib/iomgr/timer_custom.h b/src/core/lib/iomgr/timer_custom.h
new file mode 100644
index 0000000000..bfea8bafa6
--- /dev/null
+++ b/src/core/lib/iomgr/timer_custom.h
@@ -0,0 +1,43 @@
+/*
+ *
+ * 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.
+ *
+ */
+
+#ifndef GRPC_CORE_LIB_IOMGR_TIMER_CUSTOM_H
+#define GRPC_CORE_LIB_IOMGR_TIMER_CUSTOM_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/lib/iomgr/timer.h"
+
+typedef struct grpc_custom_timer {
+  // Implementation defined
+  void* timer;
+  uint64_t timeout_ms;
+
+  grpc_timer* original;
+} grpc_custom_timer;
+
+typedef struct grpc_custom_timer_vtable {
+  void (*start)(grpc_custom_timer* t);
+  void (*stop)(grpc_custom_timer* t);
+} grpc_custom_timer_vtable;
+
+void grpc_custom_timer_init(grpc_custom_timer_vtable* impl);
+
+void grpc_custom_timer_callback(grpc_custom_timer* t, grpc_error* error);
+
+#endif /* GRPC_CORE_LIB_IOMGR_TIMER_CUSTOM_H */