Brecht Van Lommel
9cfc7967dd
* Replace license text in headers with SPDX identifiers. * Remove specific license info from outdated readme.txt, instead leave details to the source files. * Add list of SPDX license identifiers used, and corresponding license texts. * Update copyright dates while we're at it. Ref D14069, T95597
127 lines
3.0 KiB
C++
127 lines
3.0 KiB
C++
/* SPDX-License-Identifier: Apache-2.0
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* Copyright 2011-2022 Blender Foundation */
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#include "util/time.h"
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#include <stdlib.h>
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#if !defined(_WIN32)
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# include <sys/time.h>
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# include <unistd.h>
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#endif
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#include "util/math.h"
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#include "util/string.h"
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#include "util/windows.h"
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CCL_NAMESPACE_BEGIN
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#ifdef _WIN32
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double time_dt()
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{
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__int64 frequency, counter;
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QueryPerformanceFrequency((LARGE_INTEGER *)&frequency);
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QueryPerformanceCounter((LARGE_INTEGER *)&counter);
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return (double)counter / (double)frequency;
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}
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void time_sleep(double t)
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{
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Sleep((int)(t * 1000));
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}
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#else
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double time_dt()
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{
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struct timeval now;
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gettimeofday(&now, NULL);
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return now.tv_sec + now.tv_usec * 1e-6;
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}
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/* sleep t seconds */
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void time_sleep(double t)
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{
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/* get whole seconds */
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int s = (int)t;
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if (s >= 1) {
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sleep(s);
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/* adjust parameter to remove whole seconds */
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t -= s;
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}
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/* get microseconds */
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int us = (int)(t * 1e6);
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if (us > 0)
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usleep(us);
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}
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#endif
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/* Time in format "hours:minutes:seconds.hundreds" */
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string time_human_readable_from_seconds(const double seconds)
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{
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const int h = (((int)seconds) / (60 * 60));
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const int m = (((int)seconds) / 60) % 60;
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const int s = (((int)seconds) % 60);
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const int r = (((int)(seconds * 100)) % 100);
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if (h > 0) {
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return string_printf("%.2d:%.2d:%.2d.%.2d", h, m, s, r);
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}
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else {
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return string_printf("%.2d:%.2d.%.2d", m, s, r);
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}
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}
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double time_human_readable_to_seconds(const string &time_string)
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{
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/* Those are multiplies of a corresponding token surrounded by : in the
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* time string, which denotes how to convert value to seconds.
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* Effectively: seconds, minutes, hours, days in seconds. */
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const int multipliers[] = {1, 60, 60 * 60, 24 * 60 * 60};
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const int num_multiplies = sizeof(multipliers) / sizeof(*multipliers);
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if (time_string.empty()) {
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return 0.0;
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}
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double result = 0.0;
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/* Split fractions of a second from the encoded time. */
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vector<string> fraction_tokens;
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string_split(fraction_tokens, time_string, ".", false);
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const int num_fraction_tokens = fraction_tokens.size();
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if (num_fraction_tokens == 0) {
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/* Time string is malformed. */
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return 0.0;
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}
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else if (fraction_tokens.size() == 1) {
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/* There is no fraction of a second specified, the rest of the code
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* handles this normally. */
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}
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else if (fraction_tokens.size() == 2) {
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result = atof(fraction_tokens[1].c_str());
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result *= pow(0.1, fraction_tokens[1].length());
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}
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else {
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/* This is not a valid string, the result can not be reliable. */
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return 0.0;
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}
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/* Split hours, minutes and seconds.
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* Hours part is optional. */
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vector<string> tokens;
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string_split(tokens, fraction_tokens[0], ":", false);
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const int num_tokens = tokens.size();
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if (num_tokens > num_multiplies) {
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/* Can not reliably represent the value. */
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return 0.0;
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}
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for (int i = 0; i < num_tokens; ++i) {
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result += atoi(tokens[num_tokens - i - 1].c_str()) * multipliers[i];
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}
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return result;
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}
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CCL_NAMESPACE_END
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