1 /* 2 * Copyright (c) 2021 Rockchip Electronics Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef __MPP_EVENTFD_H__ 17 #define __MPP_EVENTFD_H__ 18 19 #include "rk_type.h" 20 21 #ifdef __cplusplus 22 extern "C" { 23 #endif 24 25 signed int mpp_eventfd_get(unsigned int init); 26 signed int mpp_eventfd_put(signed int fd); 27 28 signed int mpp_eventfd_read(signed int fd, RK_U64 *val, RK_S64 timeout); 29 signed int mpp_eventfd_write(signed int fd, RK_U64 val); 30 31 #ifdef __cplusplus 32 } 33 #endif 34 35 #endif /* __MPP_EVENTFD_H__ */ 36