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rfnoc: Add device_id allocator

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This is a single atomic allocator in the global uhd::rfnoc namespace, so
that devices can allocate themselves device IDs without having to confer
with the rest of the RFNoC infrastructure.
This commit is contained in:
Martin Braun 2019-06-19 11:55:32 -07:00
parent 67ea15ad4b
commit b92a8e2f2b
3 changed files with 40 additions and 0 deletions
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22
host/lib/include/uhdlib/rfnoc/device_id.hpp Normal file
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@ -0,0 +1,22 @@
//
// Copyright 2019 Ettus Research, a National Instruments Brand
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#ifndef INCLUDED_LIBUHD_DEVICE_ID_HPP
#define INCLUDED_LIBUHD_DEVICE_ID_HPP
#include <uhdlib/rfnoc/rfnoc_common.hpp>
namespace uhd { namespace rfnoc {
//! Return a new, unique device ID.
//
// This function will never return the same device ID twice.
device_id_t allocate_device_id();
}} /* namespace uhd::rfnoc */
#endif /* INCLUDED_LIBUHD_DEVICE_ID_HPP */

1
host/lib/rfnoc/CMakeLists.txt
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@ -24,6 +24,7 @@ LIBUHD_APPEND_SOURCES(
${CMAKE_CURRENT_SOURCE_DIR}/chdr_packet.cpp
${CMAKE_CURRENT_SOURCE_DIR}/client_zero.cpp
${CMAKE_CURRENT_SOURCE_DIR}/ctrl_iface.cpp
${CMAKE_CURRENT_SOURCE_DIR}/device_id.cpp
${CMAKE_CURRENT_SOURCE_DIR}/epid_allocator.cpp
${CMAKE_CURRENT_SOURCE_DIR}/graph_impl.cpp
${CMAKE_CURRENT_SOURCE_DIR}/graph.cpp

17
host/lib/rfnoc/device_id.cpp Normal file
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@ -0,0 +1,17 @@
//
// Copyright 2019 Ettus Research, a National Instruments Brand
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#include <uhdlib/rfnoc/device_id.hpp>
#include <atomic>
using namespace uhd::rfnoc;
device_id_t uhd::rfnoc::allocate_device_id()
{
static std::atomic<device_id_t> counter{1};
return counter++;
}