1 /* 2 * %CopyrightBegin% 3 * 4 * Copyright Ericsson AB 2015-2018. All Rights Reserved. 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 * 18 * %CopyrightEnd% 19 */ 20 21 #ifndef ERL_OS_MONOTONIC_TIME_EXTENDER_H__ 22 #define ERL_OS_MONOTONIC_TIME_EXTENDER_H__ 23 24 #include "sys.h" 25 #include "erl_threads.h" 26 27 typedef struct { 28 Uint32 (*raw_os_monotonic_time)(void); 29 erts_atomic32_t extend[2]; 30 int check_interval; 31 } ErtsOsMonotonicTimeExtendState; 32 33 # define ERTS_EXTEND_OS_MONOTONIC_TIME(S, RT) \ 34 ((((ErtsMonotonicTime) \ 35 erts_atomic32_read_nob(&((S)->extend[((int) ((RT) >> 31)) & 1]))) \ 36 << 32) \ 37 + (RT)) 38 39 void 40 erts_init_os_monotonic_time_extender(ErtsOsMonotonicTimeExtendState *statep, 41 Uint32 (*raw_os_monotonic_time)(void), 42 int check_seconds); 43 void 44 erts_late_init_os_monotonic_time_extender(ErtsOsMonotonicTimeExtendState *statep); 45 46 #endif 47