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+//
+// Copyright 2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/convert.hpp>
+#include <uhd/utils/static.hpp>
+#include <uhd/exception.hpp>
+#include <iostream>
+
+using namespace uhd;
+
+#include "convert_pred.hpp"
+
+static const bool debug = false;
+
+/***********************************************************************
+ * Define types for the function tables
+ **********************************************************************/
+struct fcn_table_entry_type{
+ convert::priority_type prio;
+ convert::function_type fcn;
+ fcn_table_entry_type(void)
+ : prio(convert::PRIORITY_EMPTY), fcn(NULL){
+ /* NOP */
+ }
+};
+typedef std::vector<fcn_table_entry_type> fcn_table_type;
+
+/***********************************************************************
+ * Setup the table registry
+ **********************************************************************/
+UHD_SINGLETON_FCN(fcn_table_type, get_cpu_to_otw_table);
+UHD_SINGLETON_FCN(fcn_table_type, get_otw_to_cpu_table);
+
+fcn_table_type &get_table(dir_type dir){
+ switch(dir){
+ case DIR_OTW_TO_CPU: return get_otw_to_cpu_table();
+ case DIR_CPU_TO_OTW: return get_cpu_to_otw_table();
+ }
+ UHD_THROW_INVALID_CODE_PATH();
+}
+
+/***********************************************************************
+ * The registry functions
+ **********************************************************************/
+void uhd::convert::register_converter(
+ const std::string &markup,
+ function_type fcn,
+ priority_type prio
+){
+ //extract the predicate and direction from the markup
+ dir_type dir;
+ pred_type pred = make_pred(markup, dir);
+
+ //get a reference to the function table
+ fcn_table_type &table = get_table(dir);
+
+ //resize the table so that its at least pred+1
+ if (table.size() <= pred) table.resize(pred+1);
+
+ //register the function if higher priority
+ if (table[pred].prio < prio){
+ table[pred].fcn = fcn;
+ table[pred].prio = prio;
+ }
+
+ //----------------------------------------------------------------//
+ if (debug) std::cout << "register_converter: " << markup << std::endl
+ << " prio: " << prio << std::endl
+ << " pred: " << pred << std::endl
+ << " dir: " << dir << std::endl
+ << std::endl
+ ;
+ //----------------------------------------------------------------//
+}
+
+/***********************************************************************
+ * The converter functions
+ **********************************************************************/
+const convert::function_type &convert::get_converter_cpu_to_otw(
+ const io_type_t &io_type,
+ const otw_type_t &otw_type,
+ size_t num_input_buffs,
+ size_t num_output_buffs
+){
+ pred_type pred = make_pred(io_type, otw_type, num_input_buffs, num_output_buffs);
+ return get_cpu_to_otw_table().at(pred).fcn;
+}
+
+const convert::function_type &convert::get_converter_otw_to_cpu(
+ const io_type_t &io_type,
+ const otw_type_t &otw_type,
+ size_t num_input_buffs,
+ size_t num_output_buffs
+){
+ pred_type pred = make_pred(io_type, otw_type, num_input_buffs, num_output_buffs);
+ return get_otw_to_cpu_table().at(pred).fcn;
+}