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//
// Copyright 2015 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#include "expression.hpp"
#include "parser.hpp"
#include <uhd/rfnoc/block_ctrl_base.hpp>
#include <boost/thread/mutex.hpp>
#ifndef INCLUDED_LIBUHD_NOCSCRIPT_BLOCK_IFACE_HPP
#define INCLUDED_LIBUHD_NOCSCRIPT_BLOCK_IFACE_HPP
namespace uhd { namespace rfnoc { namespace nocscript {
/*! NocScript / Block interface class.
*
* This class only exists as a member of an rfnoc::block_ctrl_base class.
* It should never be instantiated anywhere else. It is used to execute
* NocScript function calls that require access to the original block
* controller class.
*/
class block_iface {
public:
typedef boost::shared_ptr<block_iface> sptr;
static sptr make(uhd::rfnoc::block_ctrl_base* block_ptr);
block_iface(uhd::rfnoc::block_ctrl_base* block_ptr);
/*! Execute \p code and make sure it returns 'true'.
*
* \param code Must be a valid NocScript expression that returns a boolean value.
* If it returns false, this is interpreted as failure.
* \param error_message If the expression fails, this error message is printed.
* \throws uhd::runtime_error if the expression returns false.
* \throws uhd::syntax_error if the expression is invalid.
*/
void run_and_check(const std::string &code, const std::string &error_message="");
private:
//! For the local interpreter lock (lil)
boost::mutex _lil_mutex;
//! Wrapper for block_ctrl_base::sr_write, so we can call it from within NocScript
expression_literal _nocscript__sr_write(expression_container::expr_list_type);
//! Argument type getter that can be used within NocScript
expression::type_t _nocscript__arg_get_type(const std::string &argname);
//! Argument value getter that can be used within NocScript
expression_literal _nocscript__arg_get_val(const std::string &argname);
//! Argument value setters:
expression_literal _nocscript__arg_set_int(const expression_container::expr_list_type &);
expression_literal _nocscript__arg_set_string(const expression_container::expr_list_type &);
expression_literal _nocscript__arg_set_double(const expression_container::expr_list_type &);
expression_literal _nocscript__arg_set_intvec(const expression_container::expr_list_type &);
//! Variable value getter
expression_literal _nocscript__var_get(const expression_container::expr_list_type &);
//! Variable value setter
expression_literal _nocscript__var_set(const expression_container::expr_list_type &);
//! Raw pointer to the block class. Note that since block_iface may
// only live as a member of a block_ctrl_base, we don't really need
// the reference counting.
uhd::rfnoc::block_ctrl_base* _block_ptr;
//! Pointer to the parser object
parser::sptr _parser;
//! Container for scoped variables
std::map<std::string, expression_literal> _vars;
};
}}} /* namespace uhd::rfnoc::nocscript */
#endif /* INCLUDED_LIBUHD_NOCSCRIPT_BLOCK_IFACE_HPP */
// vim: sw=4 et:
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