uhd: Replace all occurrences of boost::bind with std::bind

Note: Replacing everything with a lambda would be even better, but that
can't be easily scripted so we'll do this as a first step to reduce the
Boost footprint.

This also removes occurences of #include <boost/bind.hpp>, and makes
sure all usages of std::bind have an #include <functional>. clang-format
wasn't always applied to minimize the changeset in this commit, however,
it was applied to the blocks of #includes.

Due to conflicts with other Boost libraries, the placeholders _1, _2,
etc. could not be directly used, but had to be explicitly called out
(as std::placeholders::_1, etc.). This makes the use of std::bind even
uglier, which serves as another reminder that using std::bind (and even
more so, boost::bind) should be avoided.

nirio/rpc/rpc_client.cpp still contains a reference to boost::bind. It
was not possible to remove it by simply doing a search and replace, so
it will be removed in a separate commit.

1 files changed, 11 insertions, 13 deletions

diff --git a/host/lib/usrp/b100/io_impl.cpp b/host/lib/usrp/b100/io_impl.cpp
index d3de1cca1..c50327271 100644
--- a/host/lib/usrp/b100/io_impl.cpp
+++ b/host/lib/usrp/b100/io_impl.cpp
@@ -5,16 +5,14 @@
 // SPDX-License-Identifier: GPL-3.0-or-later
 //
 
+#include "../../transport/super_recv_packet_handler.hpp"
+#include "../../transport/super_send_packet_handler.hpp"
 #include "b100_impl.hpp"
 #include <uhd/utils/log.hpp>
 #include <uhdlib/usrp/common/validate_subdev_spec.hpp>
-#include "../../transport/super_recv_packet_handler.hpp"
-#include "../../transport/super_send_packet_handler.hpp"
-
-#include <boost/bind.hpp>
 #include <boost/format.hpp>
-#include <boost/bind.hpp>
 #include <boost/thread.hpp>
+#include <functional>
 #include <memory>
 
 using namespace uhd;
@@ -149,14 +147,14 @@ rx_streamer::sptr b100_impl::get_rx_stream(const uhd::stream_args_t &args_){
         _rx_dsps[dsp]->set_nsamps_per_packet(spp); //seems to be a good place to set this
         _rx_dsps[dsp]->setup(args);
         _recv_demuxer->realloc_sid(B100_RX_SID_BASE + dsp);
-        my_streamer->set_xport_chan_get_buff(chan_i, boost::bind(
-            &recv_packet_demuxer_3000::get_recv_buff, _recv_demuxer, B100_RX_SID_BASE + dsp, _1
+        my_streamer->set_xport_chan_get_buff(chan_i, std::bind(
+            &recv_packet_demuxer_3000::get_recv_buff, _recv_demuxer, B100_RX_SID_BASE + dsp, std::placeholders::_1
         ), true /*flush*/);
-        my_streamer->set_overflow_handler(chan_i, boost::bind(
+        my_streamer->set_overflow_handler(chan_i, std::bind(
             &rx_dsp_core_200::handle_overflow, _rx_dsps[dsp]
         ));
-        my_streamer->set_issue_stream_cmd(chan_i, boost::bind(
-            &rx_dsp_core_200::issue_stream_command, _rx_dsps[dsp], _1));
+        my_streamer->set_issue_stream_cmd(chan_i, std::bind(
+            &rx_dsp_core_200::issue_stream_command, _rx_dsps[dsp], std::placeholders::_1));
         _rx_streamers[dsp] = my_streamer; //store weak pointer
     }
 
@@ -207,10 +205,10 @@ tx_streamer::sptr b100_impl::get_tx_stream(const uhd::stream_args_t &args_){
         const size_t dsp = args.channels[chan_i];
         UHD_ASSERT_THROW(dsp == 0); //always 0
         _tx_dsp->setup(args);
-        my_streamer->set_xport_chan_get_buff(chan_i, boost::bind(
-            &zero_copy_if::get_send_buff, _data_transport, _1
+        my_streamer->set_xport_chan_get_buff(chan_i, std::bind(
+            &zero_copy_if::get_send_buff, _data_transport, std::placeholders::_1
         ));
-        my_streamer->set_async_receiver(boost::bind(&fifo_ctrl_excelsior::pop_async_msg, _fifo_ctrl, _1, _2));
+        my_streamer->set_async_receiver(std::bind(&fifo_ctrl_excelsior::pop_async_msg, _fifo_ctrl, std::placeholders::_1, std::placeholders::_2));
         _tx_streamers[dsp] = my_streamer; //store weak pointer
     }