Function sys_channel_recv_timeout

components/lwp/lwp_syscall.c:4308–4323

* @brief Receives a message from a communication channel with a timeout. * * This system call attempts to receive a message from a specified communication channel identified * by the file descriptor `fd`. The received message is stored in the `data` buffer. If no message * is available within the specified timeout period, the function returns with a timeout status. * * @param[in] fd The

 *          message to avoid memory corruption or data loss.
 */
sysret_t sys_channel_recv_timeout(int fd, rt_channel_msg_t data, rt_int32_t time)
{
    rt_size_t ret = 0;
    rt_channel_msg_t kdata = RT_NULL;

    kdata = kmem_get(sizeof(*data));
    if (kdata == RT_NULL)
        return -ENOMEM;

    ret = lwp_channel_recv_timeout(FDT_TYPE_LWP, fd, kdata, time);

    lwp_put_to_user(data, kdata, sizeof(*kdata));
    kmem_put(kdata);

    return ret;
}

static struct rt_semaphore critical_lock;