Function sys_clock_settime

components/lwp/lwp_syscall.c:8033–8069

* @brief Sets the time of a specified clock. * * This function sets the time of the specified clock (identified by `clk`) to the given value. The time is provided * as a `struct timespec` containing seconds and nanoseconds. This function can be used to set the system clock or * other specific clocks, such as monotonic or real-time clocks. * * @param[in] clk The clock ID for which to set the

 * @see sys_clock_gettime(), sys_clock_getres()
 */
sysret_t sys_clock_settime(clockid_t clk, const struct timespec *ts)
{
    int ret = 0;
#ifdef ARCH_MM_MMU
    size_t size = sizeof(struct timespec);
    struct timespec *kts = NULL;

    if (!lwp_user_accessable((void *)ts, size))
    {
        return -EFAULT;
    }

    kts = kmem_get(size);
    if (!kts)
    {
        return -ENOMEM;
    }

    lwp_get_from_user(kts, (void *)ts, size);
    ret = clock_settime(clk, kts);
    if (ret < 0)
    {
        ret = GET_ERRNO();
    }

    kmem_put(kts);

    return ret;
#else
    if (!lwp_user_accessable((void *)ts, sizeof(struct timespec)))
    {
        return -EFAULT;
    }
    ret = clock_settime(clk, ts);
    return (ret < 0 ? GET_ERRNO() : ret);
#endif
}

/**
 * @brief Retrieves the current time of a specified clock.