/* -*- c++ -*- */ /* * Copyright 2006-2009,2013 Free Software Foundation, Inc. * * This file is part of GNU Radio * * GNU Radio 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, or (at your option) * any later version. * * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to * the Free Software Foundation, Inc., 51 Franklin Street, * Boston, MA 02110-1301, USA. */ #ifndef INCLUDED_GR_RUNTIME_HIER_BLOCK2_H #define INCLUDED_GR_RUNTIME_HIER_BLOCK2_H #include <gnuradio/api.h> #include <gnuradio/basic_block.h> namespace gr { /*! * \brief public constructor for hier_block2 */ GR_RUNTIME_API hier_block2_sptr make_hier_block2(const std::string &name, gr::io_signature::sptr input_signature, gr::io_signature::sptr output_signature); class hier_block2_detail; /*! * \brief Hierarchical container class for gr::block's and gr::hier_block2's * \ingroup container_blk * \ingroup base_blk */ class GR_RUNTIME_API hier_block2 : public basic_block { private: friend class hier_block2_detail; friend GR_RUNTIME_API hier_block2_sptr make_hier_block2(const std::string &name, gr::io_signature::sptr input_signature, gr::io_signature::sptr output_signature); /*! * \brief Private implementation details of gr::hier_block2 */ hier_block2_detail *d_detail; protected: hier_block2(void) {} // allows pure virtual interface sub-classes hier_block2(const std::string &name, gr::io_signature::sptr input_signature, gr::io_signature::sptr output_signature); public: virtual ~hier_block2(); /*! * \brief typedef for object returned from self(). * * This type is only guaranteed to be passable to connect and * disconnect. No other assumptions should be made about it. */ typedef basic_block_sptr opaque_self; /*! * \brief Return an object, representing the current block, which * can be passed to connect. * * The returned object may only be used as an argument to connect * or disconnect. Any other use of self() results in unspecified * (erroneous) behavior. */ opaque_self self(); /*! * \brief Add a stand-alone (possibly hierarchical) block to * internal graph * * This adds a gr-block or hierarchical block to the internal * graph without wiring it to anything else. */ void connect(basic_block_sptr block); /*! * \brief Add gr-blocks or hierarchical blocks to internal graph * and wire together * * This adds (if not done earlier by another connect) a pair of * gr-blocks or hierarchical blocks to the internal flowgraph, and * wires the specified output port to the specified input port. */ void connect(basic_block_sptr src, int src_port, basic_block_sptr dst, int dst_port); /*! * \brief Add gr-blocks or hierarchical blocks to internal graph * and wire together * * This adds (if not done earlier by another connect) a pair of * gr-blocks or hierarchical blocks to the internal message port * subscription */ void msg_connect(basic_block_sptr src, pmt::pmt_t srcport, basic_block_sptr dst, pmt::pmt_t dstport); void msg_connect(basic_block_sptr src, std::string srcport, basic_block_sptr dst, std::string dstport); void msg_disconnect(basic_block_sptr src, pmt::pmt_t srcport, basic_block_sptr dst, pmt::pmt_t dstport); void msg_disconnect(basic_block_sptr src, std::string srcport, basic_block_sptr dst, std::string dstport); /*! * \brief Remove a gr-block or hierarchical block from the * internal flowgraph. * * This removes a gr-block or hierarchical block from the internal * flowgraph, disconnecting it from other blocks as needed. */ void disconnect(basic_block_sptr block); /*! * \brief Disconnect a pair of gr-blocks or hierarchical blocks in * internal flowgraph. * * This disconnects the specified input port from the specified * output port of a pair of gr-blocks or hierarchical blocks. */ void disconnect(basic_block_sptr src, int src_port, basic_block_sptr dst, int dst_port); /*! * \brief Disconnect all connections in the internal flowgraph. * * This call removes all output port to input port connections in * the internal flowgraph. */ void disconnect_all(); /*! * Lock a flowgraph in preparation for reconfiguration. When an * equal number of calls to lock() and unlock() have occurred, the * flowgraph will be reconfigured. * * N.B. lock() and unlock() may not be called from a flowgraph * thread (E.g., gr::block::work method) or deadlock will occur * when reconfiguration happens. */ virtual void lock(); /*! * Unlock a flowgraph in preparation for reconfiguration. When an * equal number of calls to lock() and unlock() have occurred, the * flowgraph will be reconfigured. * * N.B. lock() and unlock() may not be called from a flowgraph * thread (E.g., gr::block::work method) or deadlock will occur * when reconfiguration happens. */ virtual void unlock(); // This is a public method for ease of code organization, but should be // ignored by the user. flat_flowgraph_sptr flatten() const; hier_block2_sptr to_hier_block2(); // Needed for Python type coercion bool has_msg_port(pmt::pmt_t which_port) { return message_port_is_hier(which_port) || basic_block::has_msg_port(which_port); } bool message_port_is_hier(pmt::pmt_t port_id) { return message_port_is_hier_in(port_id) || message_port_is_hier_out(port_id); } bool message_port_is_hier_in(pmt::pmt_t port_id) { return pmt::list_has(hier_message_ports_in, port_id); } bool message_port_is_hier_out(pmt::pmt_t port_id) { return pmt::list_has(hier_message_ports_out, port_id); } pmt::pmt_t hier_message_ports_in; pmt::pmt_t hier_message_ports_out; void message_port_register_hier_in(pmt::pmt_t port_id) { if(pmt::list_has(hier_message_ports_in, port_id)) throw std::invalid_argument("hier msg in port by this name already registered"); if(msg_queue.find(port_id) != msg_queue.end()) throw std::invalid_argument("block already has a primitive input port by this name"); hier_message_ports_in = pmt::list_add(hier_message_ports_in, port_id); } void message_port_register_hier_out(pmt::pmt_t port_id) { if(pmt::list_has(hier_message_ports_out, port_id)) throw std::invalid_argument("hier msg out port by this name already registered"); if(pmt::dict_has_key(message_subscribers, port_id)) throw std::invalid_argument("block already has a primitive output port by this name"); hier_message_ports_out = pmt::list_add(hier_message_ports_out, port_id); } }; inline hier_block2_sptr cast_to_hier_block2_sptr(basic_block_sptr block) { return boost::dynamic_pointer_cast<hier_block2, basic_block>(block); } } /* namespace gr */ #endif /* INCLUDED_GR_RUNTIME_HIER_BLOCK2_H */