/* -*- c++ -*- */ /* * Copyright 2006,2008 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 this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifdef HAVE_CONFIG_H #include #endif #include #include #include #include #include #include #include #include #include #include static pmt_t s_self = pmt_intern("self"); //////////////////////////////////////////////////////////////////////// bool mb_mblock_impl::port_is_defined(const std::string &name) { return d_port_map.count(name) != 0; } bool mb_mblock_impl::comp_is_defined(const std::string &name) { return name == "self" || d_comp_map.count(name) != 0; } //////////////////////////////////////////////////////////////////////// mb_mblock_impl::mb_mblock_impl(mb_runtime_base *runtime, mb_mblock *mb, const std::string &instance_name) : d_runtime(runtime), d_mb(mb), d_mb_parent(0), d_instance_name(instance_name), d_class_name("mblock") { } mb_mblock_impl::~mb_mblock_impl() { d_mb = 0; // we don't own it } mb_port_sptr mb_mblock_impl::define_port(const std::string &port_name, const std::string &protocol_class_name, bool conjugated, mb_port::port_type_t port_type) { mbi_runtime_lock l(this); if (port_is_defined(port_name)) throw mbe_duplicate_port(d_mb, port_name); mb_port_sptr p = mb_port_sptr(new mb_port_simple(d_mb, port_name, protocol_class_name, conjugated, port_type)); d_port_map[port_name] = p; return p; } void mb_mblock_impl::define_component(const std::string &name, const std::string &class_name, pmt_t user_arg) { { mbi_runtime_lock l(this); if (comp_is_defined(name)) // check for duplicate name throw mbe_duplicate_component(d_mb, name); } // We ask the runtime to create the component so that it can worry about // mblock placement on a NUMA machine or on a distributed multicomputer mb_mblock_sptr component = d_runtime->create_component(instance_name() + "/" + name, class_name, user_arg); { mbi_runtime_lock l(this); component->d_impl->d_mb_parent = d_mb; // set component's parent link d_comp_map[name] = component; } } void mb_mblock_impl::connect(const std::string &comp_name1, const std::string &port_name1, const std::string &comp_name2, const std::string &port_name2) { mbi_runtime_lock l(this); mb_endpoint ep0 = check_and_resolve_endpoint(comp_name1, port_name1); mb_endpoint ep1 = check_and_resolve_endpoint(comp_name2, port_name2); if (!endpoints_are_compatible(ep0, ep1)) throw mbe_incompatible_ports(d_mb, comp_name1, port_name1, comp_name2, port_name2); // FIXME more checks? d_conn_table.create_conn(ep0, ep1); } void mb_mblock_impl::disconnect(const std::string &comp_name1, const std::string &port_name1, const std::string &comp_name2, const std::string &port_name2) { mbi_runtime_lock l(this); d_conn_table.disconnect(comp_name1, port_name1, comp_name2, port_name2); invalidate_all_port_caches(); } void mb_mblock_impl::disconnect_component(const std::string component_name) { mbi_runtime_lock l(this); d_conn_table.disconnect_component(component_name); invalidate_all_port_caches(); } void mb_mblock_impl::disconnect_all() { mbi_runtime_lock l(this); d_conn_table.disconnect_all(); invalidate_all_port_caches(); } int mb_mblock_impl::nconnections() { mbi_runtime_lock l(this); return d_conn_table.nconnections(); } //////////////////////////////////////////////////////////////////////// mb_endpoint mb_mblock_impl::check_and_resolve_endpoint(const std::string &comp_name, const std::string &port_name) { mb_conn_iter it; int which_ep; mb_port_sptr port = resolve_port(comp_name, port_name); // Confirm that we're not trying to connect to the inside of one of // our EXTERNAL ports. Connections that include "self" as the // component name must be either INTERNAL or RELAY. if (comp_name == "self" && port->port_type() == mb_port::EXTERNAL) throw mbe_invalid_port_type(d_mb, comp_name, port_name); // Is this endpoint already connected? if (d_conn_table.lookup_conn_by_name(comp_name, port_name, &it, &which_ep)) throw mbe_already_connected(d_mb, comp_name, port_name); return mb_endpoint(comp_name, port_name, port); } mb_port_sptr mb_mblock_impl::resolve_port(const std::string &comp_name, const std::string &port_name) { if (comp_name == "self"){ // Look through our ports. if (!port_is_defined(port_name)) throw mbe_no_such_port(d_mb, mb_util::join_names("self", port_name)); return d_port_map[port_name]; } else { // Look through the specified child's ports. if (!comp_is_defined(comp_name)) throw mbe_no_such_component(d_mb, comp_name); mb_mblock_impl_sptr c_impl = d_comp_map[comp_name]->d_impl; // childs impl pointer if (!c_impl->port_is_defined(port_name)) throw mbe_no_such_port(d_mb, mb_util::join_names(comp_name, port_name)); mb_port_sptr c_port = c_impl->d_port_map[port_name]; if (c_port->port_type() == mb_port::INTERNAL) // can't "see" a child's internal ports throw mbe_no_such_port(d_mb, mb_util::join_names(comp_name, port_name)); return c_port; } } bool mb_mblock_impl::endpoints_are_compatible(const mb_endpoint &ep0, const mb_endpoint &ep1) { pmt_t p0_outgoing = ep0.outgoing_message_set(); pmt_t p0_incoming = ep0.incoming_message_set(); pmt_t p1_outgoing = ep1.outgoing_message_set(); pmt_t p1_incoming = ep1.incoming_message_set(); return (pmt_subsetp(p0_outgoing, p1_incoming) && pmt_subsetp(p1_outgoing, p0_incoming)); } bool mb_mblock_impl::walk_tree(mb_visitor *visitor) { if (!(*visitor)(d_mb)) return false; mb_comp_map_t::iterator it; for (it = d_comp_map.begin(); it != d_comp_map.end(); ++it) if (!(it->second->walk_tree(visitor))) return false; return true; } mb_msg_accepter_sptr mb_mblock_impl::make_accepter(pmt_t port_name) { // FIXME this should probably use some kind of configurable factory mb_msg_accepter *ma = new mb_msg_accepter_smp(d_mb->shared_from_this(), port_name); return mb_msg_accepter_sptr(ma); } bool mb_mblock_impl::lookup_other_endpoint(const mb_port *port, mb_endpoint *ep) { mb_conn_iter it; int which_ep = 0; if (!d_conn_table.lookup_conn_by_port(port, &it, &which_ep)) return false; *ep = it->d_ep[which_ep^1]; return true; } mb_mblock_sptr mb_mblock_impl::component(const std::string &comp_name) { if (comp_name == "self") return d_mb->shared_from_this(); if (d_comp_map.count(comp_name) == 0) return mb_mblock_sptr(); // null pointer return d_comp_map[comp_name]; } void mb_mblock_impl::set_instance_name(const std::string &name) { d_instance_name = name; } void mb_mblock_impl::set_class_name(const std::string &name) { d_class_name = name; } /* * This is the "Big Hammer" port cache invalidator. * It invalidates _all_ of the port caches in the entire mblock tree. * It's overkill, but was simple to code. */ void mb_mblock_impl::invalidate_all_port_caches() { class invalidator : public mb_visitor { public: bool operator()(mb_mblock *mblock) { mb_mblock_impl_sptr impl = mblock->impl(); mb_port_map_t::iterator it = impl->d_port_map.begin(); mb_port_map_t::iterator end = impl->d_port_map.end(); for (; it != end; ++it) it->second->invalidate_cache(); return true; } }; invalidator visitor; // Always true, except in early QA code if (runtime()->top()) runtime()->top()->walk_tree(&visitor); }