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fun/src/vm/os/clock_mono_ms.c

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/**
* This file is part of the Fun programming language.
* https://fun-lang.xyz/
*
* Copyright 2025 Johannes Findeisen <you@hanez.org>
* Licensed under the terms of the Apache-2.0 license.
* https://opensource.org/license/apache-2-0
*/
/**
* @file clock_mono_ms.c
* @brief Implements OP_CLOCK_MONO_MS to push monotonic clock in ms.
*
* Stack before: []
* Stack after: [int ms]
*/
#include <stdint.h>
#include <time.h>
case OP_CLOCK_MONO_MS: {
int64_t ms;
#if defined(CLOCK_MONOTONIC) && !defined(_WIN32)
struct timespec ts;
if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
ms = (int64_t)ts.tv_sec * 1000 + (int64_t)(ts.tv_nsec / 1000000);
} else {
time_t s = time(NULL);
ms = (int64_t)s * 1000;
}
#else
time_t s = time(NULL);
ms = (int64_t)s * 1000;
#endif
push_value(vm, make_int(ms));
break;
}