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//
// Copyright 2016 Ettus Research
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#include <uhd/usrp/dboard_iface.hpp>
#include <chrono>
#include <thread>
using namespace uhd::usrp;
void dboard_iface::sleep(const std::chrono::nanoseconds& time)
{
// This sleep function is intended to create a delay on the
// device. If a command time is set, just increment that time.
// If not, the best we can do is just do a sleep on the host.
// FIXME: Create a delay in the FPGA on the device.
auto cmd_time = get_command_time();
if (cmd_time.get_real_secs() != 0.0) {
set_command_time(cmd_time + uhd::time_spec_t(time.count()));
} else {
// nanosleep is not really accurate in userland and it is also not very
// cross-platform. So just sleep for the minimum amount of time in us.
if (time < std::chrono::microseconds(1)) {
std::this_thread::sleep_for(std::chrono::microseconds(1));
} else {
std::this_thread::sleep_for(std::chrono::nanoseconds(time.count()));
}
}
}
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