| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 "util/log.h" |
| #include "util/time.h" |
| |
| #include <errno.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <sys/time.h> |
| #include <time.h> |
| |
| uint64_t timespec_to_ms(const struct timespec *ts) |
| { |
| uint64_t seconds_ms, microseconds_ms; |
| seconds_ms = ts->tv_sec; |
| seconds_ms *= 1000LLU; |
| microseconds_ms = ts->tv_nsec; |
| microseconds_ms /= 1000000LLU; |
| return seconds_ms + microseconds_ms; |
| } |
| |
| void ms_to_timespec(uint64_t ms, struct timespec *ts) |
| { |
| uint64_t sec = ms / 1000LLU; |
| ts->tv_sec = sec; |
| ms -= (sec * 1000LLU); |
| ts->tv_nsec = ms * 1000000LLU; |
| } |
| |
| void ms_to_timeval(uint64_t ms, struct timeval *tv) |
| { |
| uint64_t sec = ms / 1000LLU; |
| tv->tv_sec = sec; |
| ms -= (sec * 1000LLU); |
| tv->tv_usec = ms * 1000LLU; |
| } |
| |
| uint64_t now_ms(struct htrace_log *lg) |
| { |
| struct timespec ts; |
| int err; |
| |
| if (clock_gettime(CLOCK_REALTIME, &ts)) { |
| err = errno; |
| if (lg) { |
| htrace_log(lg, "clock_gettime(CLOCK_REALTIME) error: %d (%s)\n", |
| err, terror(err)); |
| } |
| return 0; |
| } |
| return timespec_to_ms(&ts); |
| } |
| |
| uint64_t monotonic_now_ms(struct htrace_log *lg) |
| { |
| struct timespec ts; |
| int err; |
| |
| if (clock_gettime(CLOCK_MONOTONIC, &ts)) { |
| err = errno; |
| if (lg) { |
| htrace_log(lg, "clock_gettime(CLOCK_MONOTONIC) error: %d (%s)\n", |
| err, terror(err)); |
| } |
| return 0; |
| } |
| return timespec_to_ms(&ts); |
| } |
| |
| void sleep_ms(uint64_t ms) |
| { |
| struct timespec req, rem; |
| |
| ms_to_timespec(ms, &req); |
| memset(&rem, 0, sizeof(rem)); |
| do { |
| if (nanosleep(&req, &rem) < 0) { |
| if (errno == EINTR) { |
| rem.tv_sec = req.tv_sec; |
| rem.tv_nsec = req.tv_nsec; |
| continue; |
| } |
| } |
| } while (0); |
| } |
| |
| // vim: ts=4:sw=4:et |